hbase-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From git-site-r...@apache.org
Subject [22/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Fri, 28 Jul 2017 15:07:51 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/a2b2dd19/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushRegionEntry.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushRegionEntry.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushRegionEntry.html
index f355960..13d9b4a 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushRegionEntry.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.FlushRegionEntry.html
@@ -360,478 +360,480 @@
 <span class="sourceLineNo">352</span><a name="line.352"></a>
 <span class="sourceLineNo">353</span>  @Override<a name="line.353"></a>
 <span class="sourceLineNo">354</span>  public void requestFlush(Region r, boolean forceFlushAllStores) {<a name="line.354"></a>
-<span class="sourceLineNo">355</span>    synchronized (regionsInQueue) {<a name="line.355"></a>
-<span class="sourceLineNo">356</span>      if (!regionsInQueue.containsKey(r)) {<a name="line.356"></a>
-<span class="sourceLineNo">357</span>        // This entry has no delay so it will be added at the top of the flush<a name="line.357"></a>
-<span class="sourceLineNo">358</span>        // queue.  It'll come out near immediately.<a name="line.358"></a>
-<span class="sourceLineNo">359</span>        FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.359"></a>
-<span class="sourceLineNo">360</span>        this.regionsInQueue.put(r, fqe);<a name="line.360"></a>
-<span class="sourceLineNo">361</span>        this.flushQueue.add(fqe);<a name="line.361"></a>
-<span class="sourceLineNo">362</span>      }<a name="line.362"></a>
-<span class="sourceLineNo">363</span>    }<a name="line.363"></a>
-<span class="sourceLineNo">364</span>  }<a name="line.364"></a>
-<span class="sourceLineNo">365</span><a name="line.365"></a>
-<span class="sourceLineNo">366</span>  @Override<a name="line.366"></a>
-<span class="sourceLineNo">367</span>  public void requestDelayedFlush(Region r, long delay, boolean forceFlushAllStores) {<a name="line.367"></a>
-<span class="sourceLineNo">368</span>    synchronized (regionsInQueue) {<a name="line.368"></a>
-<span class="sourceLineNo">369</span>      if (!regionsInQueue.containsKey(r)) {<a name="line.369"></a>
-<span class="sourceLineNo">370</span>        // This entry has some delay<a name="line.370"></a>
-<span class="sourceLineNo">371</span>        FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.371"></a>
-<span class="sourceLineNo">372</span>        fqe.requeue(delay);<a name="line.372"></a>
-<span class="sourceLineNo">373</span>        this.regionsInQueue.put(r, fqe);<a name="line.373"></a>
-<span class="sourceLineNo">374</span>        this.flushQueue.add(fqe);<a name="line.374"></a>
-<span class="sourceLineNo">375</span>      }<a name="line.375"></a>
-<span class="sourceLineNo">376</span>    }<a name="line.376"></a>
-<span class="sourceLineNo">377</span>  }<a name="line.377"></a>
-<span class="sourceLineNo">378</span><a name="line.378"></a>
-<span class="sourceLineNo">379</span>  public int getFlushQueueSize() {<a name="line.379"></a>
-<span class="sourceLineNo">380</span>    return flushQueue.size();<a name="line.380"></a>
-<span class="sourceLineNo">381</span>  }<a name="line.381"></a>
-<span class="sourceLineNo">382</span><a name="line.382"></a>
-<span class="sourceLineNo">383</span>  /**<a name="line.383"></a>
-<span class="sourceLineNo">384</span>   * Only interrupt once it's done with a run through the work loop.<a name="line.384"></a>
-<span class="sourceLineNo">385</span>   */<a name="line.385"></a>
-<span class="sourceLineNo">386</span>  void interruptIfNecessary() {<a name="line.386"></a>
-<span class="sourceLineNo">387</span>    lock.writeLock().lock();<a name="line.387"></a>
-<span class="sourceLineNo">388</span>    try {<a name="line.388"></a>
-<span class="sourceLineNo">389</span>      for (FlushHandler flushHander : flushHandlers) {<a name="line.389"></a>
-<span class="sourceLineNo">390</span>        if (flushHander != null) flushHander.interrupt();<a name="line.390"></a>
-<span class="sourceLineNo">391</span>      }<a name="line.391"></a>
-<span class="sourceLineNo">392</span>    } finally {<a name="line.392"></a>
-<span class="sourceLineNo">393</span>      lock.writeLock().unlock();<a name="line.393"></a>
-<span class="sourceLineNo">394</span>    }<a name="line.394"></a>
-<span class="sourceLineNo">395</span>  }<a name="line.395"></a>
-<span class="sourceLineNo">396</span><a name="line.396"></a>
-<span class="sourceLineNo">397</span>  synchronized void start(UncaughtExceptionHandler eh) {<a name="line.397"></a>
-<span class="sourceLineNo">398</span>    ThreadFactory flusherThreadFactory = Threads.newDaemonThreadFactory(<a name="line.398"></a>
-<span class="sourceLineNo">399</span>        server.getServerName().toShortString() + "-MemStoreFlusher", eh);<a name="line.399"></a>
-<span class="sourceLineNo">400</span>    for (int i = 0; i &lt; flushHandlers.length; i++) {<a name="line.400"></a>
-<span class="sourceLineNo">401</span>      flushHandlers[i] = new FlushHandler("MemStoreFlusher." + i);<a name="line.401"></a>
-<span class="sourceLineNo">402</span>      flusherThreadFactory.newThread(flushHandlers[i]);<a name="line.402"></a>
-<span class="sourceLineNo">403</span>      flushHandlers[i].start();<a name="line.403"></a>
-<span class="sourceLineNo">404</span>    }<a name="line.404"></a>
-<span class="sourceLineNo">405</span>  }<a name="line.405"></a>
-<span class="sourceLineNo">406</span><a name="line.406"></a>
-<span class="sourceLineNo">407</span>  boolean isAlive() {<a name="line.407"></a>
-<span class="sourceLineNo">408</span>    for (FlushHandler flushHander : flushHandlers) {<a name="line.408"></a>
-<span class="sourceLineNo">409</span>      if (flushHander != null &amp;&amp; flushHander.isAlive()) {<a name="line.409"></a>
-<span class="sourceLineNo">410</span>        return true;<a name="line.410"></a>
-<span class="sourceLineNo">411</span>      }<a name="line.411"></a>
-<span class="sourceLineNo">412</span>    }<a name="line.412"></a>
-<span class="sourceLineNo">413</span>    return false;<a name="line.413"></a>
-<span class="sourceLineNo">414</span>  }<a name="line.414"></a>
-<span class="sourceLineNo">415</span><a name="line.415"></a>
-<span class="sourceLineNo">416</span>  void join() {<a name="line.416"></a>
-<span class="sourceLineNo">417</span>    for (FlushHandler flushHander : flushHandlers) {<a name="line.417"></a>
-<span class="sourceLineNo">418</span>      if (flushHander != null) {<a name="line.418"></a>
-<span class="sourceLineNo">419</span>        Threads.shutdown(flushHander.getThread());<a name="line.419"></a>
-<span class="sourceLineNo">420</span>      }<a name="line.420"></a>
-<span class="sourceLineNo">421</span>    }<a name="line.421"></a>
-<span class="sourceLineNo">422</span>  }<a name="line.422"></a>
-<span class="sourceLineNo">423</span><a name="line.423"></a>
-<span class="sourceLineNo">424</span>  /**<a name="line.424"></a>
-<span class="sourceLineNo">425</span>   * A flushRegion that checks store file count.  If too many, puts the flush<a name="line.425"></a>
-<span class="sourceLineNo">426</span>   * on delay queue to retry later.<a name="line.426"></a>
-<span class="sourceLineNo">427</span>   * @param fqe<a name="line.427"></a>
-<span class="sourceLineNo">428</span>   * @return true if the region was successfully flushed, false otherwise. If<a name="line.428"></a>
-<span class="sourceLineNo">429</span>   * false, there will be accompanying log messages explaining why the region was<a name="line.429"></a>
-<span class="sourceLineNo">430</span>   * not flushed.<a name="line.430"></a>
-<span class="sourceLineNo">431</span>   */<a name="line.431"></a>
-<span class="sourceLineNo">432</span>  private boolean flushRegion(final FlushRegionEntry fqe) {<a name="line.432"></a>
-<span class="sourceLineNo">433</span>    Region region = fqe.region;<a name="line.433"></a>
-<span class="sourceLineNo">434</span>    if (!region.getRegionInfo().isMetaRegion() &amp;&amp;<a name="line.434"></a>
-<span class="sourceLineNo">435</span>        isTooManyStoreFiles(region)) {<a name="line.435"></a>
-<span class="sourceLineNo">436</span>      if (fqe.isMaximumWait(this.blockingWaitTime)) {<a name="line.436"></a>
-<span class="sourceLineNo">437</span>        LOG.info("Waited " + (EnvironmentEdgeManager.currentTime() - fqe.createTime) +<a name="line.437"></a>
-<span class="sourceLineNo">438</span>          "ms on a compaction to clean up 'too many store files'; waited " +<a name="line.438"></a>
-<span class="sourceLineNo">439</span>          "long enough... proceeding with flush of " +<a name="line.439"></a>
-<span class="sourceLineNo">440</span>          region.getRegionInfo().getRegionNameAsString());<a name="line.440"></a>
-<span class="sourceLineNo">441</span>      } else {<a name="line.441"></a>
-<span class="sourceLineNo">442</span>        // If this is first time we've been put off, then emit a log message.<a name="line.442"></a>
-<span class="sourceLineNo">443</span>        if (fqe.getRequeueCount() &lt;= 0) {<a name="line.443"></a>
-<span class="sourceLineNo">444</span>          // Note: We don't impose blockingStoreFiles constraint on meta regions<a name="line.444"></a>
-<span class="sourceLineNo">445</span>          LOG.warn("Region " + region.getRegionInfo().getRegionNameAsString() + " has too many " +<a name="line.445"></a>
-<span class="sourceLineNo">446</span>            "store files; delaying flush up to " + this.blockingWaitTime + "ms");<a name="line.446"></a>
-<span class="sourceLineNo">447</span>          if (!this.server.compactSplitThread.requestSplit(region)) {<a name="line.447"></a>
-<span class="sourceLineNo">448</span>            try {<a name="line.448"></a>
-<span class="sourceLineNo">449</span>              this.server.compactSplitThread.requestSystemCompaction(<a name="line.449"></a>
-<span class="sourceLineNo">450</span>                  region, Thread.currentThread().getName());<a name="line.450"></a>
-<span class="sourceLineNo">451</span>            } catch (IOException e) {<a name="line.451"></a>
-<span class="sourceLineNo">452</span>              e = e instanceof RemoteException ?<a name="line.452"></a>
-<span class="sourceLineNo">453</span>                      ((RemoteException)e).unwrapRemoteException() : e;<a name="line.453"></a>
-<span class="sourceLineNo">454</span>              LOG.error("Cache flush failed for region " +<a name="line.454"></a>
-<span class="sourceLineNo">455</span>                Bytes.toStringBinary(region.getRegionInfo().getRegionName()), e);<a name="line.455"></a>
-<span class="sourceLineNo">456</span>            }<a name="line.456"></a>
-<span class="sourceLineNo">457</span>          }<a name="line.457"></a>
-<span class="sourceLineNo">458</span>        }<a name="line.458"></a>
-<span class="sourceLineNo">459</span><a name="line.459"></a>
-<span class="sourceLineNo">460</span>        // Put back on the queue.  Have it come back out of the queue<a name="line.460"></a>
-<span class="sourceLineNo">461</span>        // after a delay of this.blockingWaitTime / 100 ms.<a name="line.461"></a>
-<span class="sourceLineNo">462</span>        this.flushQueue.add(fqe.requeue(this.blockingWaitTime / 100));<a name="line.462"></a>
-<span class="sourceLineNo">463</span>        // Tell a lie, it's not flushed but it's ok<a name="line.463"></a>
-<span class="sourceLineNo">464</span>        return true;<a name="line.464"></a>
-<span class="sourceLineNo">465</span>      }<a name="line.465"></a>
-<span class="sourceLineNo">466</span>    }<a name="line.466"></a>
-<span class="sourceLineNo">467</span>    return flushRegion(region, false, fqe.isForceFlushAllStores());<a name="line.467"></a>
-<span class="sourceLineNo">468</span>  }<a name="line.468"></a>
-<span class="sourceLineNo">469</span><a name="line.469"></a>
-<span class="sourceLineNo">470</span>  /**<a name="line.470"></a>
-<span class="sourceLineNo">471</span>   * Flush a region.<a name="line.471"></a>
-<span class="sourceLineNo">472</span>   * @param region Region to flush.<a name="line.472"></a>
-<span class="sourceLineNo">473</span>   * @param emergencyFlush Set if we are being force flushed. If true the region<a name="line.473"></a>
-<span class="sourceLineNo">474</span>   * needs to be removed from the flush queue. If false, when we were called<a name="line.474"></a>
-<span class="sourceLineNo">475</span>   * from the main flusher run loop and we got the entry to flush by calling<a name="line.475"></a>
-<span class="sourceLineNo">476</span>   * poll on the flush queue (which removed it).<a name="line.476"></a>
-<span class="sourceLineNo">477</span>   * @param forceFlushAllStores whether we want to flush all store.<a name="line.477"></a>
-<span class="sourceLineNo">478</span>   * @return true if the region was successfully flushed, false otherwise. If<a name="line.478"></a>
-<span class="sourceLineNo">479</span>   * false, there will be accompanying log messages explaining why the region was<a name="line.479"></a>
-<span class="sourceLineNo">480</span>   * not flushed.<a name="line.480"></a>
-<span class="sourceLineNo">481</span>   */<a name="line.481"></a>
-<span class="sourceLineNo">482</span>  private boolean flushRegion(final Region region, final boolean emergencyFlush,<a name="line.482"></a>
-<span class="sourceLineNo">483</span>      boolean forceFlushAllStores) {<a name="line.483"></a>
-<span class="sourceLineNo">484</span>    synchronized (this.regionsInQueue) {<a name="line.484"></a>
-<span class="sourceLineNo">485</span>      FlushRegionEntry fqe = this.regionsInQueue.remove(region);<a name="line.485"></a>
-<span class="sourceLineNo">486</span>      // Use the start time of the FlushRegionEntry if available<a name="line.486"></a>
-<span class="sourceLineNo">487</span>      if (fqe != null &amp;&amp; emergencyFlush) {<a name="line.487"></a>
-<span class="sourceLineNo">488</span>        // Need to remove from region from delay queue.  When NOT an<a name="line.488"></a>
-<span class="sourceLineNo">489</span>        // emergencyFlush, then item was removed via a flushQueue.poll.<a name="line.489"></a>
-<span class="sourceLineNo">490</span>        flushQueue.remove(fqe);<a name="line.490"></a>
-<span class="sourceLineNo">491</span>      }<a name="line.491"></a>
-<span class="sourceLineNo">492</span>    }<a name="line.492"></a>
-<span class="sourceLineNo">493</span><a name="line.493"></a>
-<span class="sourceLineNo">494</span>    lock.readLock().lock();<a name="line.494"></a>
-<span class="sourceLineNo">495</span>    try {<a name="line.495"></a>
-<span class="sourceLineNo">496</span>      notifyFlushRequest(region, emergencyFlush);<a name="line.496"></a>
-<span class="sourceLineNo">497</span>      FlushResult flushResult = region.flush(forceFlushAllStores);<a name="line.497"></a>
-<span class="sourceLineNo">498</span>      boolean shouldCompact = flushResult.isCompactionNeeded();<a name="line.498"></a>
-<span class="sourceLineNo">499</span>      // We just want to check the size<a name="line.499"></a>
-<span class="sourceLineNo">500</span>      boolean shouldSplit = ((HRegion)region).checkSplit() != null;<a name="line.500"></a>
-<span class="sourceLineNo">501</span>      if (shouldSplit) {<a name="line.501"></a>
-<span class="sourceLineNo">502</span>        this.server.compactSplitThread.requestSplit(region);<a name="line.502"></a>
-<span class="sourceLineNo">503</span>      } else if (shouldCompact) {<a name="line.503"></a>
-<span class="sourceLineNo">504</span>        server.compactSplitThread.requestSystemCompaction(<a name="line.504"></a>
-<span class="sourceLineNo">505</span>            region, Thread.currentThread().getName());<a name="line.505"></a>
-<span class="sourceLineNo">506</span>      }<a name="line.506"></a>
-<span class="sourceLineNo">507</span>    } catch (DroppedSnapshotException ex) {<a name="line.507"></a>
-<span class="sourceLineNo">508</span>      // Cache flush can fail in a few places. If it fails in a critical<a name="line.508"></a>
-<span class="sourceLineNo">509</span>      // section, we get a DroppedSnapshotException and a replay of wal<a name="line.509"></a>
-<span class="sourceLineNo">510</span>      // is required. Currently the only way to do this is a restart of<a name="line.510"></a>
-<span class="sourceLineNo">511</span>      // the server. Abort because hdfs is probably bad (HBASE-644 is a case<a name="line.511"></a>
-<span class="sourceLineNo">512</span>      // where hdfs was bad but passed the hdfs check).<a name="line.512"></a>
-<span class="sourceLineNo">513</span>      server.abort("Replay of WAL required. Forcing server shutdown", ex);<a name="line.513"></a>
-<span class="sourceLineNo">514</span>      return false;<a name="line.514"></a>
-<span class="sourceLineNo">515</span>    } catch (IOException ex) {<a name="line.515"></a>
-<span class="sourceLineNo">516</span>      ex = ex instanceof RemoteException ? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.516"></a>
-<span class="sourceLineNo">517</span>      LOG.error(<a name="line.517"></a>
-<span class="sourceLineNo">518</span>        "Cache flush failed"<a name="line.518"></a>
-<span class="sourceLineNo">519</span>            + (region != null ? (" for region " +<a name="line.519"></a>
-<span class="sourceLineNo">520</span>                Bytes.toStringBinary(region.getRegionInfo().getRegionName()))<a name="line.520"></a>
-<span class="sourceLineNo">521</span>              : ""), ex);<a name="line.521"></a>
-<span class="sourceLineNo">522</span>      if (!server.checkFileSystem()) {<a name="line.522"></a>
-<span class="sourceLineNo">523</span>        return false;<a name="line.523"></a>
-<span class="sourceLineNo">524</span>      }<a name="line.524"></a>
-<span class="sourceLineNo">525</span>    } finally {<a name="line.525"></a>
-<span class="sourceLineNo">526</span>      lock.readLock().unlock();<a name="line.526"></a>
-<span class="sourceLineNo">527</span>      wakeUpIfBlocking();<a name="line.527"></a>
-<span class="sourceLineNo">528</span>    }<a name="line.528"></a>
-<span class="sourceLineNo">529</span>    return true;<a name="line.529"></a>
-<span class="sourceLineNo">530</span>  }<a name="line.530"></a>
-<span class="sourceLineNo">531</span><a name="line.531"></a>
-<span class="sourceLineNo">532</span>  private void notifyFlushRequest(Region region, boolean emergencyFlush) {<a name="line.532"></a>
-<span class="sourceLineNo">533</span>    FlushType type = null;<a name="line.533"></a>
-<span class="sourceLineNo">534</span>    if (emergencyFlush) {<a name="line.534"></a>
-<span class="sourceLineNo">535</span>      type = isAboveHighWaterMark();<a name="line.535"></a>
-<span class="sourceLineNo">536</span>      if (type == null) {<a name="line.536"></a>
-<span class="sourceLineNo">537</span>        type = isAboveLowWaterMark();<a name="line.537"></a>
-<span class="sourceLineNo">538</span>      }<a name="line.538"></a>
-<span class="sourceLineNo">539</span>    }<a name="line.539"></a>
-<span class="sourceLineNo">540</span>    for (FlushRequestListener listener : flushRequestListeners) {<a name="line.540"></a>
-<span class="sourceLineNo">541</span>      listener.flushRequested(type, region);<a name="line.541"></a>
-<span class="sourceLineNo">542</span>    }<a name="line.542"></a>
-<span class="sourceLineNo">543</span>  }<a name="line.543"></a>
-<span class="sourceLineNo">544</span><a name="line.544"></a>
-<span class="sourceLineNo">545</span>  private void wakeUpIfBlocking() {<a name="line.545"></a>
-<span class="sourceLineNo">546</span>    synchronized (blockSignal) {<a name="line.546"></a>
-<span class="sourceLineNo">547</span>      blockSignal.notifyAll();<a name="line.547"></a>
-<span class="sourceLineNo">548</span>    }<a name="line.548"></a>
-<span class="sourceLineNo">549</span>  }<a name="line.549"></a>
-<span class="sourceLineNo">550</span><a name="line.550"></a>
-<span class="sourceLineNo">551</span>  private boolean isTooManyStoreFiles(Region region) {<a name="line.551"></a>
+<span class="sourceLineNo">355</span>    ((HRegion)r).incrementFlushesQueuedCount();<a name="line.355"></a>
+<span class="sourceLineNo">356</span>    synchronized (regionsInQueue) {<a name="line.356"></a>
+<span class="sourceLineNo">357</span>      if (!regionsInQueue.containsKey(r)) {<a name="line.357"></a>
+<span class="sourceLineNo">358</span>        // This entry has no delay so it will be added at the top of the flush<a name="line.358"></a>
+<span class="sourceLineNo">359</span>        // queue.  It'll come out near immediately.<a name="line.359"></a>
+<span class="sourceLineNo">360</span>        FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.360"></a>
+<span class="sourceLineNo">361</span>        this.regionsInQueue.put(r, fqe);<a name="line.361"></a>
+<span class="sourceLineNo">362</span>        this.flushQueue.add(fqe);<a name="line.362"></a>
+<span class="sourceLineNo">363</span>      }<a name="line.363"></a>
+<span class="sourceLineNo">364</span>    }<a name="line.364"></a>
+<span class="sourceLineNo">365</span>  }<a name="line.365"></a>
+<span class="sourceLineNo">366</span><a name="line.366"></a>
+<span class="sourceLineNo">367</span>  @Override<a name="line.367"></a>
+<span class="sourceLineNo">368</span>  public void requestDelayedFlush(Region r, long delay, boolean forceFlushAllStores) {<a name="line.368"></a>
+<span class="sourceLineNo">369</span>    ((HRegion)r).incrementFlushesQueuedCount();<a name="line.369"></a>
+<span class="sourceLineNo">370</span>    synchronized (regionsInQueue) {<a name="line.370"></a>
+<span class="sourceLineNo">371</span>      if (!regionsInQueue.containsKey(r)) {<a name="line.371"></a>
+<span class="sourceLineNo">372</span>        // This entry has some delay<a name="line.372"></a>
+<span class="sourceLineNo">373</span>        FlushRegionEntry fqe = new FlushRegionEntry(r, forceFlushAllStores);<a name="line.373"></a>
+<span class="sourceLineNo">374</span>        fqe.requeue(delay);<a name="line.374"></a>
+<span class="sourceLineNo">375</span>        this.regionsInQueue.put(r, fqe);<a name="line.375"></a>
+<span class="sourceLineNo">376</span>        this.flushQueue.add(fqe);<a name="line.376"></a>
+<span class="sourceLineNo">377</span>      }<a name="line.377"></a>
+<span class="sourceLineNo">378</span>    }<a name="line.378"></a>
+<span class="sourceLineNo">379</span>  }<a name="line.379"></a>
+<span class="sourceLineNo">380</span><a name="line.380"></a>
+<span class="sourceLineNo">381</span>  public int getFlushQueueSize() {<a name="line.381"></a>
+<span class="sourceLineNo">382</span>    return flushQueue.size();<a name="line.382"></a>
+<span class="sourceLineNo">383</span>  }<a name="line.383"></a>
+<span class="sourceLineNo">384</span><a name="line.384"></a>
+<span class="sourceLineNo">385</span>  /**<a name="line.385"></a>
+<span class="sourceLineNo">386</span>   * Only interrupt once it's done with a run through the work loop.<a name="line.386"></a>
+<span class="sourceLineNo">387</span>   */<a name="line.387"></a>
+<span class="sourceLineNo">388</span>  void interruptIfNecessary() {<a name="line.388"></a>
+<span class="sourceLineNo">389</span>    lock.writeLock().lock();<a name="line.389"></a>
+<span class="sourceLineNo">390</span>    try {<a name="line.390"></a>
+<span class="sourceLineNo">391</span>      for (FlushHandler flushHander : flushHandlers) {<a name="line.391"></a>
+<span class="sourceLineNo">392</span>        if (flushHander != null) flushHander.interrupt();<a name="line.392"></a>
+<span class="sourceLineNo">393</span>      }<a name="line.393"></a>
+<span class="sourceLineNo">394</span>    } finally {<a name="line.394"></a>
+<span class="sourceLineNo">395</span>      lock.writeLock().unlock();<a name="line.395"></a>
+<span class="sourceLineNo">396</span>    }<a name="line.396"></a>
+<span class="sourceLineNo">397</span>  }<a name="line.397"></a>
+<span class="sourceLineNo">398</span><a name="line.398"></a>
+<span class="sourceLineNo">399</span>  synchronized void start(UncaughtExceptionHandler eh) {<a name="line.399"></a>
+<span class="sourceLineNo">400</span>    ThreadFactory flusherThreadFactory = Threads.newDaemonThreadFactory(<a name="line.400"></a>
+<span class="sourceLineNo">401</span>        server.getServerName().toShortString() + "-MemStoreFlusher", eh);<a name="line.401"></a>
+<span class="sourceLineNo">402</span>    for (int i = 0; i &lt; flushHandlers.length; i++) {<a name="line.402"></a>
+<span class="sourceLineNo">403</span>      flushHandlers[i] = new FlushHandler("MemStoreFlusher." + i);<a name="line.403"></a>
+<span class="sourceLineNo">404</span>      flusherThreadFactory.newThread(flushHandlers[i]);<a name="line.404"></a>
+<span class="sourceLineNo">405</span>      flushHandlers[i].start();<a name="line.405"></a>
+<span class="sourceLineNo">406</span>    }<a name="line.406"></a>
+<span class="sourceLineNo">407</span>  }<a name="line.407"></a>
+<span class="sourceLineNo">408</span><a name="line.408"></a>
+<span class="sourceLineNo">409</span>  boolean isAlive() {<a name="line.409"></a>
+<span class="sourceLineNo">410</span>    for (FlushHandler flushHander : flushHandlers) {<a name="line.410"></a>
+<span class="sourceLineNo">411</span>      if (flushHander != null &amp;&amp; flushHander.isAlive()) {<a name="line.411"></a>
+<span class="sourceLineNo">412</span>        return true;<a name="line.412"></a>
+<span class="sourceLineNo">413</span>      }<a name="line.413"></a>
+<span class="sourceLineNo">414</span>    }<a name="line.414"></a>
+<span class="sourceLineNo">415</span>    return false;<a name="line.415"></a>
+<span class="sourceLineNo">416</span>  }<a name="line.416"></a>
+<span class="sourceLineNo">417</span><a name="line.417"></a>
+<span class="sourceLineNo">418</span>  void join() {<a name="line.418"></a>
+<span class="sourceLineNo">419</span>    for (FlushHandler flushHander : flushHandlers) {<a name="line.419"></a>
+<span class="sourceLineNo">420</span>      if (flushHander != null) {<a name="line.420"></a>
+<span class="sourceLineNo">421</span>        Threads.shutdown(flushHander.getThread());<a name="line.421"></a>
+<span class="sourceLineNo">422</span>      }<a name="line.422"></a>
+<span class="sourceLineNo">423</span>    }<a name="line.423"></a>
+<span class="sourceLineNo">424</span>  }<a name="line.424"></a>
+<span class="sourceLineNo">425</span><a name="line.425"></a>
+<span class="sourceLineNo">426</span>  /**<a name="line.426"></a>
+<span class="sourceLineNo">427</span>   * A flushRegion that checks store file count.  If too many, puts the flush<a name="line.427"></a>
+<span class="sourceLineNo">428</span>   * on delay queue to retry later.<a name="line.428"></a>
+<span class="sourceLineNo">429</span>   * @param fqe<a name="line.429"></a>
+<span class="sourceLineNo">430</span>   * @return true if the region was successfully flushed, false otherwise. If<a name="line.430"></a>
+<span class="sourceLineNo">431</span>   * false, there will be accompanying log messages explaining why the region was<a name="line.431"></a>
+<span class="sourceLineNo">432</span>   * not flushed.<a name="line.432"></a>
+<span class="sourceLineNo">433</span>   */<a name="line.433"></a>
+<span class="sourceLineNo">434</span>  private boolean flushRegion(final FlushRegionEntry fqe) {<a name="line.434"></a>
+<span class="sourceLineNo">435</span>    Region region = fqe.region;<a name="line.435"></a>
+<span class="sourceLineNo">436</span>    if (!region.getRegionInfo().isMetaRegion() &amp;&amp;<a name="line.436"></a>
+<span class="sourceLineNo">437</span>        isTooManyStoreFiles(region)) {<a name="line.437"></a>
+<span class="sourceLineNo">438</span>      if (fqe.isMaximumWait(this.blockingWaitTime)) {<a name="line.438"></a>
+<span class="sourceLineNo">439</span>        LOG.info("Waited " + (EnvironmentEdgeManager.currentTime() - fqe.createTime) +<a name="line.439"></a>
+<span class="sourceLineNo">440</span>          "ms on a compaction to clean up 'too many store files'; waited " +<a name="line.440"></a>
+<span class="sourceLineNo">441</span>          "long enough... proceeding with flush of " +<a name="line.441"></a>
+<span class="sourceLineNo">442</span>          region.getRegionInfo().getRegionNameAsString());<a name="line.442"></a>
+<span class="sourceLineNo">443</span>      } else {<a name="line.443"></a>
+<span class="sourceLineNo">444</span>        // If this is first time we've been put off, then emit a log message.<a name="line.444"></a>
+<span class="sourceLineNo">445</span>        if (fqe.getRequeueCount() &lt;= 0) {<a name="line.445"></a>
+<span class="sourceLineNo">446</span>          // Note: We don't impose blockingStoreFiles constraint on meta regions<a name="line.446"></a>
+<span class="sourceLineNo">447</span>          LOG.warn("Region " + region.getRegionInfo().getRegionNameAsString() + " has too many " +<a name="line.447"></a>
+<span class="sourceLineNo">448</span>            "store files; delaying flush up to " + this.blockingWaitTime + "ms");<a name="line.448"></a>
+<span class="sourceLineNo">449</span>          if (!this.server.compactSplitThread.requestSplit(region)) {<a name="line.449"></a>
+<span class="sourceLineNo">450</span>            try {<a name="line.450"></a>
+<span class="sourceLineNo">451</span>              this.server.compactSplitThread.requestSystemCompaction(<a name="line.451"></a>
+<span class="sourceLineNo">452</span>                  region, Thread.currentThread().getName());<a name="line.452"></a>
+<span class="sourceLineNo">453</span>            } catch (IOException e) {<a name="line.453"></a>
+<span class="sourceLineNo">454</span>              e = e instanceof RemoteException ?<a name="line.454"></a>
+<span class="sourceLineNo">455</span>                      ((RemoteException)e).unwrapRemoteException() : e;<a name="line.455"></a>
+<span class="sourceLineNo">456</span>              LOG.error("Cache flush failed for region " +<a name="line.456"></a>
+<span class="sourceLineNo">457</span>                Bytes.toStringBinary(region.getRegionInfo().getRegionName()), e);<a name="line.457"></a>
+<span class="sourceLineNo">458</span>            }<a name="line.458"></a>
+<span class="sourceLineNo">459</span>          }<a name="line.459"></a>
+<span class="sourceLineNo">460</span>        }<a name="line.460"></a>
+<span class="sourceLineNo">461</span><a name="line.461"></a>
+<span class="sourceLineNo">462</span>        // Put back on the queue.  Have it come back out of the queue<a name="line.462"></a>
+<span class="sourceLineNo">463</span>        // after a delay of this.blockingWaitTime / 100 ms.<a name="line.463"></a>
+<span class="sourceLineNo">464</span>        this.flushQueue.add(fqe.requeue(this.blockingWaitTime / 100));<a name="line.464"></a>
+<span class="sourceLineNo">465</span>        // Tell a lie, it's not flushed but it's ok<a name="line.465"></a>
+<span class="sourceLineNo">466</span>        return true;<a name="line.466"></a>
+<span class="sourceLineNo">467</span>      }<a name="line.467"></a>
+<span class="sourceLineNo">468</span>    }<a name="line.468"></a>
+<span class="sourceLineNo">469</span>    return flushRegion(region, false, fqe.isForceFlushAllStores());<a name="line.469"></a>
+<span class="sourceLineNo">470</span>  }<a name="line.470"></a>
+<span class="sourceLineNo">471</span><a name="line.471"></a>
+<span class="sourceLineNo">472</span>  /**<a name="line.472"></a>
+<span class="sourceLineNo">473</span>   * Flush a region.<a name="line.473"></a>
+<span class="sourceLineNo">474</span>   * @param region Region to flush.<a name="line.474"></a>
+<span class="sourceLineNo">475</span>   * @param emergencyFlush Set if we are being force flushed. If true the region<a name="line.475"></a>
+<span class="sourceLineNo">476</span>   * needs to be removed from the flush queue. If false, when we were called<a name="line.476"></a>
+<span class="sourceLineNo">477</span>   * from the main flusher run loop and we got the entry to flush by calling<a name="line.477"></a>
+<span class="sourceLineNo">478</span>   * poll on the flush queue (which removed it).<a name="line.478"></a>
+<span class="sourceLineNo">479</span>   * @param forceFlushAllStores whether we want to flush all store.<a name="line.479"></a>
+<span class="sourceLineNo">480</span>   * @return true if the region was successfully flushed, false otherwise. If<a name="line.480"></a>
+<span class="sourceLineNo">481</span>   * false, there will be accompanying log messages explaining why the region was<a name="line.481"></a>
+<span class="sourceLineNo">482</span>   * not flushed.<a name="line.482"></a>
+<span class="sourceLineNo">483</span>   */<a name="line.483"></a>
+<span class="sourceLineNo">484</span>  private boolean flushRegion(final Region region, final boolean emergencyFlush,<a name="line.484"></a>
+<span class="sourceLineNo">485</span>      boolean forceFlushAllStores) {<a name="line.485"></a>
+<span class="sourceLineNo">486</span>    synchronized (this.regionsInQueue) {<a name="line.486"></a>
+<span class="sourceLineNo">487</span>      FlushRegionEntry fqe = this.regionsInQueue.remove(region);<a name="line.487"></a>
+<span class="sourceLineNo">488</span>      // Use the start time of the FlushRegionEntry if available<a name="line.488"></a>
+<span class="sourceLineNo">489</span>      if (fqe != null &amp;&amp; emergencyFlush) {<a name="line.489"></a>
+<span class="sourceLineNo">490</span>        // Need to remove from region from delay queue.  When NOT an<a name="line.490"></a>
+<span class="sourceLineNo">491</span>        // emergencyFlush, then item was removed via a flushQueue.poll.<a name="line.491"></a>
+<span class="sourceLineNo">492</span>        flushQueue.remove(fqe);<a name="line.492"></a>
+<span class="sourceLineNo">493</span>      }<a name="line.493"></a>
+<span class="sourceLineNo">494</span>    }<a name="line.494"></a>
+<span class="sourceLineNo">495</span><a name="line.495"></a>
+<span class="sourceLineNo">496</span>    lock.readLock().lock();<a name="line.496"></a>
+<span class="sourceLineNo">497</span>    try {<a name="line.497"></a>
+<span class="sourceLineNo">498</span>      notifyFlushRequest(region, emergencyFlush);<a name="line.498"></a>
+<span class="sourceLineNo">499</span>      FlushResult flushResult = region.flush(forceFlushAllStores);<a name="line.499"></a>
+<span class="sourceLineNo">500</span>      boolean shouldCompact = flushResult.isCompactionNeeded();<a name="line.500"></a>
+<span class="sourceLineNo">501</span>      // We just want to check the size<a name="line.501"></a>
+<span class="sourceLineNo">502</span>      boolean shouldSplit = ((HRegion)region).checkSplit() != null;<a name="line.502"></a>
+<span class="sourceLineNo">503</span>      if (shouldSplit) {<a name="line.503"></a>
+<span class="sourceLineNo">504</span>        this.server.compactSplitThread.requestSplit(region);<a name="line.504"></a>
+<span class="sourceLineNo">505</span>      } else if (shouldCompact) {<a name="line.505"></a>
+<span class="sourceLineNo">506</span>        server.compactSplitThread.requestSystemCompaction(<a name="line.506"></a>
+<span class="sourceLineNo">507</span>            region, Thread.currentThread().getName());<a name="line.507"></a>
+<span class="sourceLineNo">508</span>      }<a name="line.508"></a>
+<span class="sourceLineNo">509</span>    } catch (DroppedSnapshotException ex) {<a name="line.509"></a>
+<span class="sourceLineNo">510</span>      // Cache flush can fail in a few places. If it fails in a critical<a name="line.510"></a>
+<span class="sourceLineNo">511</span>      // section, we get a DroppedSnapshotException and a replay of wal<a name="line.511"></a>
+<span class="sourceLineNo">512</span>      // is required. Currently the only way to do this is a restart of<a name="line.512"></a>
+<span class="sourceLineNo">513</span>      // the server. Abort because hdfs is probably bad (HBASE-644 is a case<a name="line.513"></a>
+<span class="sourceLineNo">514</span>      // where hdfs was bad but passed the hdfs check).<a name="line.514"></a>
+<span class="sourceLineNo">515</span>      server.abort("Replay of WAL required. Forcing server shutdown", ex);<a name="line.515"></a>
+<span class="sourceLineNo">516</span>      return false;<a name="line.516"></a>
+<span class="sourceLineNo">517</span>    } catch (IOException ex) {<a name="line.517"></a>
+<span class="sourceLineNo">518</span>      ex = ex instanceof RemoteException ? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.518"></a>
+<span class="sourceLineNo">519</span>      LOG.error(<a name="line.519"></a>
+<span class="sourceLineNo">520</span>        "Cache flush failed"<a name="line.520"></a>
+<span class="sourceLineNo">521</span>            + (region != null ? (" for region " +<a name="line.521"></a>
+<span class="sourceLineNo">522</span>                Bytes.toStringBinary(region.getRegionInfo().getRegionName()))<a name="line.522"></a>
+<span class="sourceLineNo">523</span>              : ""), ex);<a name="line.523"></a>
+<span class="sourceLineNo">524</span>      if (!server.checkFileSystem()) {<a name="line.524"></a>
+<span class="sourceLineNo">525</span>        return false;<a name="line.525"></a>
+<span class="sourceLineNo">526</span>      }<a name="line.526"></a>
+<span class="sourceLineNo">527</span>    } finally {<a name="line.527"></a>
+<span class="sourceLineNo">528</span>      lock.readLock().unlock();<a name="line.528"></a>
+<span class="sourceLineNo">529</span>      wakeUpIfBlocking();<a name="line.529"></a>
+<span class="sourceLineNo">530</span>    }<a name="line.530"></a>
+<span class="sourceLineNo">531</span>    return true;<a name="line.531"></a>
+<span class="sourceLineNo">532</span>  }<a name="line.532"></a>
+<span class="sourceLineNo">533</span><a name="line.533"></a>
+<span class="sourceLineNo">534</span>  private void notifyFlushRequest(Region region, boolean emergencyFlush) {<a name="line.534"></a>
+<span class="sourceLineNo">535</span>    FlushType type = null;<a name="line.535"></a>
+<span class="sourceLineNo">536</span>    if (emergencyFlush) {<a name="line.536"></a>
+<span class="sourceLineNo">537</span>      type = isAboveHighWaterMark();<a name="line.537"></a>
+<span class="sourceLineNo">538</span>      if (type == null) {<a name="line.538"></a>
+<span class="sourceLineNo">539</span>        type = isAboveLowWaterMark();<a name="line.539"></a>
+<span class="sourceLineNo">540</span>      }<a name="line.540"></a>
+<span class="sourceLineNo">541</span>    }<a name="line.541"></a>
+<span class="sourceLineNo">542</span>    for (FlushRequestListener listener : flushRequestListeners) {<a name="line.542"></a>
+<span class="sourceLineNo">543</span>      listener.flushRequested(type, region);<a name="line.543"></a>
+<span class="sourceLineNo">544</span>    }<a name="line.544"></a>
+<span class="sourceLineNo">545</span>  }<a name="line.545"></a>
+<span class="sourceLineNo">546</span><a name="line.546"></a>
+<span class="sourceLineNo">547</span>  private void wakeUpIfBlocking() {<a name="line.547"></a>
+<span class="sourceLineNo">548</span>    synchronized (blockSignal) {<a name="line.548"></a>
+<span class="sourceLineNo">549</span>      blockSignal.notifyAll();<a name="line.549"></a>
+<span class="sourceLineNo">550</span>    }<a name="line.550"></a>
+<span class="sourceLineNo">551</span>  }<a name="line.551"></a>
 <span class="sourceLineNo">552</span><a name="line.552"></a>
-<span class="sourceLineNo">553</span>    // When compaction is disabled, the region is flushable<a name="line.553"></a>
-<span class="sourceLineNo">554</span>    if (!region.getTableDescriptor().isCompactionEnabled()) {<a name="line.554"></a>
-<span class="sourceLineNo">555</span>      return false;<a name="line.555"></a>
-<span class="sourceLineNo">556</span>    }<a name="line.556"></a>
-<span class="sourceLineNo">557</span><a name="line.557"></a>
-<span class="sourceLineNo">558</span>    for (Store store : region.getStores()) {<a name="line.558"></a>
-<span class="sourceLineNo">559</span>      if (store.hasTooManyStoreFiles()) {<a name="line.559"></a>
-<span class="sourceLineNo">560</span>        return true;<a name="line.560"></a>
-<span class="sourceLineNo">561</span>      }<a name="line.561"></a>
-<span class="sourceLineNo">562</span>    }<a name="line.562"></a>
-<span class="sourceLineNo">563</span>    return false;<a name="line.563"></a>
-<span class="sourceLineNo">564</span>  }<a name="line.564"></a>
-<span class="sourceLineNo">565</span><a name="line.565"></a>
-<span class="sourceLineNo">566</span>  /**<a name="line.566"></a>
-<span class="sourceLineNo">567</span>   * Check if the regionserver's memstore memory usage is greater than the<a name="line.567"></a>
-<span class="sourceLineNo">568</span>   * limit. If so, flush regions with the biggest memstores until we're down<a name="line.568"></a>
-<span class="sourceLineNo">569</span>   * to the lower limit. This method blocks callers until we're down to a safe<a name="line.569"></a>
-<span class="sourceLineNo">570</span>   * amount of memstore consumption.<a name="line.570"></a>
-<span class="sourceLineNo">571</span>   */<a name="line.571"></a>
-<span class="sourceLineNo">572</span>  public void reclaimMemStoreMemory() {<a name="line.572"></a>
-<span class="sourceLineNo">573</span>    TraceScope scope = Trace.startSpan("MemStoreFluser.reclaimMemStoreMemory");<a name="line.573"></a>
-<span class="sourceLineNo">574</span>    FlushType flushType = isAboveHighWaterMark();<a name="line.574"></a>
-<span class="sourceLineNo">575</span>    if (flushType != FlushType.NORMAL) {<a name="line.575"></a>
-<span class="sourceLineNo">576</span>      if (Trace.isTracing()) {<a name="line.576"></a>
-<span class="sourceLineNo">577</span>        scope.getSpan().addTimelineAnnotation("Force Flush. We're above high water mark.");<a name="line.577"></a>
-<span class="sourceLineNo">578</span>      }<a name="line.578"></a>
-<span class="sourceLineNo">579</span>      long start = EnvironmentEdgeManager.currentTime();<a name="line.579"></a>
-<span class="sourceLineNo">580</span>      synchronized (this.blockSignal) {<a name="line.580"></a>
-<span class="sourceLineNo">581</span>        boolean blocked = false;<a name="line.581"></a>
-<span class="sourceLineNo">582</span>        long startTime = 0;<a name="line.582"></a>
-<span class="sourceLineNo">583</span>        boolean interrupted = false;<a name="line.583"></a>
-<span class="sourceLineNo">584</span>        try {<a name="line.584"></a>
-<span class="sourceLineNo">585</span>          flushType = isAboveHighWaterMark();<a name="line.585"></a>
-<span class="sourceLineNo">586</span>          while (flushType != FlushType.NORMAL &amp;&amp; !server.isStopped()) {<a name="line.586"></a>
-<span class="sourceLineNo">587</span>            if (!blocked) {<a name="line.587"></a>
-<span class="sourceLineNo">588</span>              startTime = EnvironmentEdgeManager.currentTime();<a name="line.588"></a>
-<span class="sourceLineNo">589</span>              if (!server.getRegionServerAccounting().isOffheap()) {<a name="line.589"></a>
-<span class="sourceLineNo">590</span>                logMsg("global memstore heapsize",<a name="line.590"></a>
-<span class="sourceLineNo">591</span>                    server.getRegionServerAccounting().getGlobalMemstoreHeapSize(),<a name="line.591"></a>
-<span class="sourceLineNo">592</span>                    server.getRegionServerAccounting().getGlobalMemstoreLimit());<a name="line.592"></a>
-<span class="sourceLineNo">593</span>              } else {<a name="line.593"></a>
-<span class="sourceLineNo">594</span>                switch (flushType) {<a name="line.594"></a>
-<span class="sourceLineNo">595</span>                case ABOVE_OFFHEAP_HIGHER_MARK:<a name="line.595"></a>
-<span class="sourceLineNo">596</span>                  logMsg("the global offheap memstore datasize",<a name="line.596"></a>
-<span class="sourceLineNo">597</span>                      server.getRegionServerAccounting().getGlobalMemstoreDataSize(),<a name="line.597"></a>
-<span class="sourceLineNo">598</span>                      server.getRegionServerAccounting().getGlobalMemstoreLimit());<a name="line.598"></a>
-<span class="sourceLineNo">599</span>                  break;<a name="line.599"></a>
-<span class="sourceLineNo">600</span>                case ABOVE_ONHEAP_HIGHER_MARK:<a name="line.600"></a>
-<span class="sourceLineNo">601</span>                  logMsg("global memstore heapsize",<a name="line.601"></a>
-<span class="sourceLineNo">602</span>                      server.getRegionServerAccounting().getGlobalMemstoreHeapSize(),<a name="line.602"></a>
-<span class="sourceLineNo">603</span>                      server.getRegionServerAccounting().getGlobalOnHeapMemstoreLimit());<a name="line.603"></a>
-<span class="sourceLineNo">604</span>                  break;<a name="line.604"></a>
-<span class="sourceLineNo">605</span>                default:<a name="line.605"></a>
+<span class="sourceLineNo">553</span>  private boolean isTooManyStoreFiles(Region region) {<a name="line.553"></a>
+<span class="sourceLineNo">554</span><a name="line.554"></a>
+<span class="sourceLineNo">555</span>    // When compaction is disabled, the region is flushable<a name="line.555"></a>
+<span class="sourceLineNo">556</span>    if (!region.getTableDescriptor().isCompactionEnabled()) {<a name="line.556"></a>
+<span class="sourceLineNo">557</span>      return false;<a name="line.557"></a>
+<span class="sourceLineNo">558</span>    }<a name="line.558"></a>
+<span class="sourceLineNo">559</span><a name="line.559"></a>
+<span class="sourceLineNo">560</span>    for (Store store : region.getStores()) {<a name="line.560"></a>
+<span class="sourceLineNo">561</span>      if (store.hasTooManyStoreFiles()) {<a name="line.561"></a>
+<span class="sourceLineNo">562</span>        return true;<a name="line.562"></a>
+<span class="sourceLineNo">563</span>      }<a name="line.563"></a>
+<span class="sourceLineNo">564</span>    }<a name="line.564"></a>
+<span class="sourceLineNo">565</span>    return false;<a name="line.565"></a>
+<span class="sourceLineNo">566</span>  }<a name="line.566"></a>
+<span class="sourceLineNo">567</span><a name="line.567"></a>
+<span class="sourceLineNo">568</span>  /**<a name="line.568"></a>
+<span class="sourceLineNo">569</span>   * Check if the regionserver's memstore memory usage is greater than the<a name="line.569"></a>
+<span class="sourceLineNo">570</span>   * limit. If so, flush regions with the biggest memstores until we're down<a name="line.570"></a>
+<span class="sourceLineNo">571</span>   * to the lower limit. This method blocks callers until we're down to a safe<a name="line.571"></a>
+<span class="sourceLineNo">572</span>   * amount of memstore consumption.<a name="line.572"></a>
+<span class="sourceLineNo">573</span>   */<a name="line.573"></a>
+<span class="sourceLineNo">574</span>  public void reclaimMemStoreMemory() {<a name="line.574"></a>
+<span class="sourceLineNo">575</span>    TraceScope scope = Trace.startSpan("MemStoreFluser.reclaimMemStoreMemory");<a name="line.575"></a>
+<span class="sourceLineNo">576</span>    FlushType flushType = isAboveHighWaterMark();<a name="line.576"></a>
+<span class="sourceLineNo">577</span>    if (flushType != FlushType.NORMAL) {<a name="line.577"></a>
+<span class="sourceLineNo">578</span>      if (Trace.isTracing()) {<a name="line.578"></a>
+<span class="sourceLineNo">579</span>        scope.getSpan().addTimelineAnnotation("Force Flush. We're above high water mark.");<a name="line.579"></a>
+<span class="sourceLineNo">580</span>      }<a name="line.580"></a>
+<span class="sourceLineNo">581</span>      long start = EnvironmentEdgeManager.currentTime();<a name="line.581"></a>
+<span class="sourceLineNo">582</span>      synchronized (this.blockSignal) {<a name="line.582"></a>
+<span class="sourceLineNo">583</span>        boolean blocked = false;<a name="line.583"></a>
+<span class="sourceLineNo">584</span>        long startTime = 0;<a name="line.584"></a>
+<span class="sourceLineNo">585</span>        boolean interrupted = false;<a name="line.585"></a>
+<span class="sourceLineNo">586</span>        try {<a name="line.586"></a>
+<span class="sourceLineNo">587</span>          flushType = isAboveHighWaterMark();<a name="line.587"></a>
+<span class="sourceLineNo">588</span>          while (flushType != FlushType.NORMAL &amp;&amp; !server.isStopped()) {<a name="line.588"></a>
+<span class="sourceLineNo">589</span>            if (!blocked) {<a name="line.589"></a>
+<span class="sourceLineNo">590</span>              startTime = EnvironmentEdgeManager.currentTime();<a name="line.590"></a>
+<span class="sourceLineNo">591</span>              if (!server.getRegionServerAccounting().isOffheap()) {<a name="line.591"></a>
+<span class="sourceLineNo">592</span>                logMsg("global memstore heapsize",<a name="line.592"></a>
+<span class="sourceLineNo">593</span>                    server.getRegionServerAccounting().getGlobalMemstoreHeapSize(),<a name="line.593"></a>
+<span class="sourceLineNo">594</span>                    server.getRegionServerAccounting().getGlobalMemstoreLimit());<a name="line.594"></a>
+<span class="sourceLineNo">595</span>              } else {<a name="line.595"></a>
+<span class="sourceLineNo">596</span>                switch (flushType) {<a name="line.596"></a>
+<span class="sourceLineNo">597</span>                case ABOVE_OFFHEAP_HIGHER_MARK:<a name="line.597"></a>
+<span class="sourceLineNo">598</span>                  logMsg("the global offheap memstore datasize",<a name="line.598"></a>
+<span class="sourceLineNo">599</span>                      server.getRegionServerAccounting().getGlobalMemstoreDataSize(),<a name="line.599"></a>
+<span class="sourceLineNo">600</span>                      server.getRegionServerAccounting().getGlobalMemstoreLimit());<a name="line.600"></a>
+<span class="sourceLineNo">601</span>                  break;<a name="line.601"></a>
+<span class="sourceLineNo">602</span>                case ABOVE_ONHEAP_HIGHER_MARK:<a name="line.602"></a>
+<span class="sourceLineNo">603</span>                  logMsg("global memstore heapsize",<a name="line.603"></a>
+<span class="sourceLineNo">604</span>                      server.getRegionServerAccounting().getGlobalMemstoreHeapSize(),<a name="line.604"></a>
+<span class="sourceLineNo">605</span>                      server.getRegionServerAccounting().getGlobalOnHeapMemstoreLimit());<a name="line.605"></a>
 <span class="sourceLineNo">606</span>                  break;<a name="line.606"></a>
-<span class="sourceLineNo">607</span>                }<a name="line.607"></a>
-<span class="sourceLineNo">608</span>              }<a name="line.608"></a>
-<span class="sourceLineNo">609</span>            }<a name="line.609"></a>
-<span class="sourceLineNo">610</span>            blocked = true;<a name="line.610"></a>
-<span class="sourceLineNo">611</span>            wakeupFlushThread();<a name="line.611"></a>
-<span class="sourceLineNo">612</span>            try {<a name="line.612"></a>
-<span class="sourceLineNo">613</span>              // we should be able to wait forever, but we've seen a bug where<a name="line.613"></a>
-<span class="sourceLineNo">614</span>              // we miss a notify, so put a 5 second bound on it at least.<a name="line.614"></a>
-<span class="sourceLineNo">615</span>              blockSignal.wait(5 * 1000);<a name="line.615"></a>
-<span class="sourceLineNo">616</span>            } catch (InterruptedException ie) {<a name="line.616"></a>
-<span class="sourceLineNo">617</span>              LOG.warn("Interrupted while waiting");<a name="line.617"></a>
-<span class="sourceLineNo">618</span>              interrupted = true;<a name="line.618"></a>
-<span class="sourceLineNo">619</span>            }<a name="line.619"></a>
-<span class="sourceLineNo">620</span>            long took = EnvironmentEdgeManager.currentTime() - start;<a name="line.620"></a>
-<span class="sourceLineNo">621</span>            LOG.warn("Memstore is above high water mark and block " + took + "ms");<a name="line.621"></a>
-<span class="sourceLineNo">622</span>            flushType = isAboveHighWaterMark();<a name="line.622"></a>
-<span class="sourceLineNo">623</span>          }<a name="line.623"></a>
-<span class="sourceLineNo">624</span>        } finally {<a name="line.624"></a>
-<span class="sourceLineNo">625</span>          if (interrupted) {<a name="line.625"></a>
-<span class="sourceLineNo">626</span>            Thread.currentThread().interrupt();<a name="line.626"></a>
-<span class="sourceLineNo">627</span>          }<a name="line.627"></a>
-<span class="sourceLineNo">628</span>        }<a name="line.628"></a>
-<span class="sourceLineNo">629</span><a name="line.629"></a>
-<span class="sourceLineNo">630</span>        if(blocked){<a name="line.630"></a>
-<span class="sourceLineNo">631</span>          final long totalTime = EnvironmentEdgeManager.currentTime() - startTime;<a name="line.631"></a>
-<span class="sourceLineNo">632</span>          if(totalTime &gt; 0){<a name="line.632"></a>
-<span class="sourceLineNo">633</span>            this.updatesBlockedMsHighWater.add(totalTime);<a name="line.633"></a>
-<span class="sourceLineNo">634</span>          }<a name="line.634"></a>
-<span class="sourceLineNo">635</span>          LOG.info("Unblocking updates for server " + server.toString());<a name="line.635"></a>
-<span class="sourceLineNo">636</span>        }<a name="line.636"></a>
-<span class="sourceLineNo">637</span>      }<a name="line.637"></a>
-<span class="sourceLineNo">638</span>    } else if (isAboveLowWaterMark() != FlushType.NORMAL) {<a name="line.638"></a>
-<span class="sourceLineNo">639</span>      wakeupFlushThread();<a name="line.639"></a>
-<span class="sourceLineNo">640</span>    }<a name="line.640"></a>
-<span class="sourceLineNo">641</span>    scope.close();<a name="line.641"></a>
-<span class="sourceLineNo">642</span>  }<a name="line.642"></a>
-<span class="sourceLineNo">643</span><a name="line.643"></a>
-<span class="sourceLineNo">644</span>  private void logMsg(String string1, long val, long max) {<a name="line.644"></a>
-<span class="sourceLineNo">645</span>    LOG.info("Blocking updates on " + server.toString() + ": " + string1 + " "<a name="line.645"></a>
-<span class="sourceLineNo">646</span>        + TraditionalBinaryPrefix.long2String(val, "", 1) + " is &gt;= than blocking "<a name="line.646"></a>
-<span class="sourceLineNo">647</span>        + TraditionalBinaryPrefix.long2String(max, "", 1) + " size");<a name="line.647"></a>
-<span class="sourceLineNo">648</span>  }<a name="line.648"></a>
-<span class="sourceLineNo">649</span><a name="line.649"></a>
-<span class="sourceLineNo">650</span>  @Override<a name="line.650"></a>
-<span class="sourceLineNo">651</span>  public String toString() {<a name="line.651"></a>
-<span class="sourceLineNo">652</span>    return "flush_queue="<a name="line.652"></a>
-<span class="sourceLineNo">653</span>        + flushQueue.size();<a name="line.653"></a>
-<span class="sourceLineNo">654</span>  }<a name="line.654"></a>
-<span class="sourceLineNo">655</span><a name="line.655"></a>
-<span class="sourceLineNo">656</span>  public String dumpQueue() {<a name="line.656"></a>
-<span class="sourceLineNo">657</span>    StringBuilder queueList = new StringBuilder();<a name="line.657"></a>
-<span class="sourceLineNo">658</span>    queueList.append("Flush Queue Queue dump:\n");<a name="line.658"></a>
-<span class="sourceLineNo">659</span>    queueList.append("  Flush Queue:\n");<a name="line.659"></a>
-<span class="sourceLineNo">660</span>    java.util.Iterator&lt;FlushQueueEntry&gt; it = flushQueue.iterator();<a name="line.660"></a>
-<span class="sourceLineNo">661</span><a name="line.661"></a>
-<span class="sourceLineNo">662</span>    while(it.hasNext()){<a name="line.662"></a>
-<span class="sourceLineNo">663</span>      queueList.append("    "+it.next().toString());<a name="line.663"></a>
-<span class="sourceLineNo">664</span>      queueList.append("\n");<a name="line.664"></a>
-<span class="sourceLineNo">665</span>    }<a name="line.665"></a>
-<span class="sourceLineNo">666</span><a name="line.666"></a>
-<span class="sourceLineNo">667</span>    return queueList.toString();<a name="line.667"></a>
-<span class="sourceLineNo">668</span>  }<a name="line.668"></a>
-<span class="sourceLineNo">669</span><a name="line.669"></a>
-<span class="sourceLineNo">670</span>  /**<a name="line.670"></a>
-<span class="sourceLineNo">671</span>   * Register a MemstoreFlushListener<a name="line.671"></a>
-<span class="sourceLineNo">672</span>   * @param listener<a name="line.672"></a>
-<span class="sourceLineNo">673</span>   */<a name="line.673"></a>
-<span class="sourceLineNo">674</span>  @Override<a name="line.674"></a>
-<span class="sourceLineNo">675</span>  public void registerFlushRequestListener(final FlushRequestListener listener) {<a name="line.675"></a>
-<span class="sourceLineNo">676</span>    this.flushRequestListeners.add(listener);<a name="line.676"></a>
-<span class="sourceLineNo">677</span>  }<a name="line.677"></a>
-<span class="sourceLineNo">678</span><a name="line.678"></a>
-<span class="sourceLineNo">679</span>  /**<a name="line.679"></a>
-<span class="sourceLineNo">680</span>   * Unregister the listener from MemstoreFlushListeners<a name="line.680"></a>
-<span class="sourceLineNo">681</span>   * @param listener<a name="line.681"></a>
-<span class="sourceLineNo">682</span>   * @return true when passed listener is unregistered successfully.<a name="line.682"></a>
-<span class="sourceLineNo">683</span>   */<a name="line.683"></a>
-<span class="sourceLineNo">684</span>  @Override<a name="line.684"></a>
-<span class="sourceLineNo">685</span>  public boolean unregisterFlushRequestListener(final FlushRequestListener listener) {<a name="line.685"></a>
-<span class="sourceLineNo">686</span>    return this.flushRequestListeners.remove(listener);<a name="line.686"></a>
-<span class="sourceLineNo">687</span>  }<a name="line.687"></a>
-<span class="sourceLineNo">688</span><a name="line.688"></a>
-<span class="sourceLineNo">689</span>  /**<a name="line.689"></a>
-<span class="sourceLineNo">690</span>   * Sets the global memstore limit to a new size.<a name="line.690"></a>
-<span class="sourceLineNo">691</span>   * @param globalMemStoreSize<a name="line.691"></a>
-<span class="sourceLineNo">692</span>   */<a name="line.692"></a>
-<span class="sourceLineNo">693</span>  @Override<a name="line.693"></a>
-<span class="sourceLineNo">694</span>  public void setGlobalMemstoreLimit(long globalMemStoreSize) {<a name="line.694"></a>
-<span class="sourceLineNo">695</span>    this.server.getRegionServerAccounting().setGlobalMemstoreLimits(globalMemStoreSize);<a name="line.695"></a>
-<span class="sourceLineNo">696</span>    reclaimMemStoreMemory();<a name="line.696"></a>
-<span class="sourceLineNo">697</span>  }<a name="line.697"></a>
-<span class="sourceLineNo">698</span><a name="line.698"></a>
-<span class="sourceLineNo">699</span>  interface FlushQueueEntry extends Delayed {<a name="line.699"></a>
-<span class="sourceLineNo">700</span>  }<a name="line.700"></a>
-<span class="sourceLineNo">701</span><a name="line.701"></a>
-<span class="sourceLineNo">702</span>  /**<a name="line.702"></a>
-<span class="sourceLineNo">703</span>   * Token to insert into the flush queue that ensures that the flusher does not sleep<a name="line.703"></a>
-<span class="sourceLineNo">704</span>   */<a name="line.704"></a>
-<span class="sourceLineNo">705</span>  static class WakeupFlushThread implements FlushQueueEntry {<a name="line.705"></a>
-<span class="sourceLineNo">706</span>    @Override<a name="line.706"></a>
-<span class="sourceLineNo">707</span>    public long getDelay(TimeUnit unit) {<a name="line.707"></a>
-<span class="sourceLineNo">708</span>      return 0;<a name="line.708"></a>
-<span class="sourceLineNo">709</span>    }<a name="line.709"></a>
-<span class="sourceLineNo">710</span><a name="line.710"></a>
-<span class="sourceLineNo">711</span>    @Override<a name="line.711"></a>
-<span class="sourceLineNo">712</span>    public int compareTo(Delayed o) {<a name="line.712"></a>
-<span class="sourceLineNo">713</span>      return -1;<a name="line.713"></a>
-<span class="sourceLineNo">714</span>    }<a name="line.714"></a>
-<span class="sourceLineNo">715</span><a name="line.715"></a>
-<span class="sourceLineNo">716</span>    @Override<a name="line.716"></a>
-<span class="sourceLineNo">717</span>    public boolean equals(Object obj) {<a name="line.717"></a>
-<span class="sourceLineNo">718</span>      return (this == obj);<a name="line.718"></a>
-<span class="sourceLineNo">719</span>    }<a name="line.719"></a>
-<span class="sourceLineNo">720</span>  }<a name="line.720"></a>
-<span class="sourceLineNo">721</span><a name="line.721"></a>
-<span class="sourceLineNo">722</span>  /**<a name="line.722"></a>
-<span class="sourceLineNo">723</span>   * Datastructure used in the flush queue.  Holds region and retry count.<a name="line.723"></a>
-<span class="sourceLineNo">724</span>   * Keeps tabs on how old this object is.  Implements {@link Delayed}.  On<a name="line.724"></a>
-<span class="sourceLineNo">725</span>   * construction, the delay is zero. When added to a delay queue, we'll come<a name="line.725"></a>
-<span class="sourceLineNo">726</span>   * out near immediately.  Call {@link #requeue(long)} passing delay in<a name="line.726"></a>
-<span class="sourceLineNo">727</span>   * milliseconds before readding to delay queue if you want it to stay there<a name="line.727"></a>
-<span class="sourceLineNo">728</span>   * a while.<a name="line.728"></a>
-<span class="sourceLineNo">729</span>   */<a name="line.729"></a>
-<span class="sourceLineNo">730</span>  static class FlushRegionEntry implements FlushQueueEntry {<a name="line.730"></a>
-<span class="sourceLineNo">731</span>    private final Region region;<a name="line.731"></a>
-<span class="sourceLineNo">732</span><a name="line.732"></a>
-<span class="sourceLineNo">733</span>    private final long createTime;<a name="line.733"></a>
-<span class="sourceLineNo">734</span>    private long whenToExpire;<a name="line.734"></a>
-<span class="sourceLineNo">735</span>    private int requeueCount = 0;<a name="line.735"></a>
-<span class="sourceLineNo">736</span><a name="line.736"></a>
-<span class="sourceLineNo">737</span>    private boolean forceFlushAllStores;<a name="line.737"></a>
+<span class="sourceLineNo">607</span>                default:<a name="line.607"></a>
+<span class="sourceLineNo">608</span>                  break;<a name="line.608"></a>
+<span class="sourceLineNo">609</span>                }<a name="line.609"></a>
+<span class="sourceLineNo">610</span>              }<a name="line.610"></a>
+<span class="sourceLineNo">611</span>            }<a name="line.611"></a>
+<span class="sourceLineNo">612</span>            blocked = true;<a name="line.612"></a>
+<span class="sourceLineNo">613</span>            wakeupFlushThread();<a name="line.613"></a>
+<span class="sourceLineNo">614</span>            try {<a name="line.614"></a>
+<span class="sourceLineNo">615</span>              // we should be able to wait forever, but we've seen a bug where<a name="line.615"></a>
+<span class="sourceLineNo">616</span>              // we miss a notify, so put a 5 second bound on it at least.<a name="line.616"></a>
+<span class="sourceLineNo">617</span>              blockSignal.wait(5 * 1000);<a name="line.617"></a>
+<span class="sourceLineNo">618</span>            } catch (InterruptedException ie) {<a name="line.618"></a>
+<span class="sourceLineNo">619</span>              LOG.warn("Interrupted while waiting");<a name="line.619"></a>
+<span class="sourceLineNo">620</span>              interrupted = true;<a name="line.620"></a>
+<span class="sourceLineNo">621</span>            }<a name="line.621"></a>
+<span class="sourceLineNo">622</span>            long took = EnvironmentEdgeManager.currentTime() - start;<a name="line.622"></a>
+<span class="sourceLineNo">623</span>            LOG.warn("Memstore is above high water mark and block " + took + "ms");<a name="line.623"></a>
+<span class="sourceLineNo">624</span>            flushType = isAboveHighWaterMark();<a name="line.624"></a>
+<span class="sourceLineNo">625</span>          }<a name="line.625"></a>
+<span class="sourceLineNo">626</span>        } finally {<a name="line.626"></a>
+<span class="sourceLineNo">627</span>          if (interrupted) {<a name="line.627"></a>
+<span class="sourceLineNo">628</span>            Thread.currentThread().interrupt();<a name="line.628"></a>
+<span class="sourceLineNo">629</span>          }<a name="line.629"></a>
+<span class="sourceLineNo">630</span>        }<a name="line.630"></a>
+<span class="sourceLineNo">631</span><a name="line.631"></a>
+<span class="sourceLineNo">632</span>        if(blocked){<a name="line.632"></a>
+<span class="sourceLineNo">633</span>          final long totalTime = EnvironmentEdgeManager.currentTime() - startTime;<a name="line.633"></a>
+<span class="sourceLineNo">634</span>          if(totalTime &gt; 0){<a name="line.634"></a>
+<span class="sourceLineNo">635</span>            this.updatesBlockedMsHighWater.add(totalTime);<a name="line.635"></a>
+<span class="sourceLineNo">636</span>          }<a name="line.636"></a>
+<span class="sourceLineNo">637</span>          LOG.info("Unblocking updates for server " + server.toString());<a name="line.637"></a>
+<span class="sourceLineNo">638</span>        }<a name="line.638"></a>
+<span class="sourceLineNo">639</span>      }<a name="line.639"></a>
+<span class="sourceLineNo">640</span>    } else if (isAboveLowWaterMark() != FlushType.NORMAL) {<a name="line.640"></a>
+<span class="sourceLineNo">641</span>      wakeupFlushThread();<a name="line.641"></a>
+<span class="sourceLineNo">642</span>    }<a name="line.642"></a>
+<span class="sourceLineNo">643</span>    scope.close();<a name="line.643"></a>
+<span class="sourceLineNo">644</span>  }<a name="line.644"></a>
+<span class="sourceLineNo">645</span><a name="line.645"></a>
+<span class="sourceLineNo">646</span>  private void logMsg(String string1, long val, long max) {<a name="line.646"></a>
+<span class="sourceLineNo">647</span>    LOG.info("Blocking updates on " + server.toString() + ": " + string1 + " "<a name="line.647"></a>
+<span class="sourceLineNo">648</span>        + TraditionalBinaryPrefix.long2String(val, "", 1) + " is &gt;= than blocking "<a name="line.648"></a>
+<span class="sourceLineNo">649</span>        + TraditionalBinaryPrefix.long2String(max, "", 1) + " size");<a name="line.649"></a>
+<span class="sourceLineNo">650</span>  }<a name="line.650"></a>
+<span class="sourceLineNo">651</span><a name="line.651"></a>
+<span class="sourceLineNo">652</span>  @Override<a name="line.652"></a>
+<span class="sourceLineNo">653</span>  public String toString() {<a name="line.653"></a>
+<span class="sourceLineNo">654</span>    return "flush_queue="<a name="line.654"></a>
+<span class="sourceLineNo">655</span>        + flushQueue.size();<a name="line.655"></a>
+<span class="sourceLineNo">656</span>  }<a name="line.656"></a>
+<span class="sourceLineNo">657</span><a name="line.657"></a>
+<span class="sourceLineNo">658</span>  public String dumpQueue() {<a name="line.658"></a>
+<span class="sourceLineNo">659</span>    StringBuilder queueList = new StringBuilder();<a name="line.659"></a>
+<span class="sourceLineNo">660</span>    queueList.append("Flush Queue Queue dump:\n");<a name="line.660"></a>
+<span class="sourceLineNo">661</span>    queueList.append("  Flush Queue:\n");<a name="line.661"></a>
+<span class="sourceLineNo">662</span>    java.util.Iterator&lt;FlushQueueEntry&gt; it = flushQueue.iterator();<a name="line.662"></a>
+<span class="sourceLineNo">663</span><a name="line.663"></a>
+<span class="sourceLineNo">664</span>    while(it.hasNext()){<a name="line.664"></a>
+<span class="sourceLineNo">665</span>      queueList.append("    "+it.next().toString());<a name="line.665"></a>
+<span class="sourceLineNo">666</span>      queueList.append("\n");<a name="line.666"></a>
+<span class="sourceLineNo">667</span>    }<a name="line.667"></a>
+<span class="sourceLineNo">668</span><a name="line.668"></a>
+<span class="sourceLineNo">669</span>    return queueList.toString();<a name="line.669"></a>
+<span class="sourceLineNo">670</span>  }<a name="line.670"></a>
+<span class="sourceLineNo">671</span><a name="line.671"></a>
+<span class="sourceLineNo">672</span>  /**<a name="line.672"></a>
+<span class="sourceLineNo">673</span>   * Register a MemstoreFlushListener<a name="line.673"></a>
+<span class="sourceLineNo">674</span>   * @param listener<a name="line.674"></a>
+<span class="sourceLineNo">675</span>   */<a name="line.675"></a>
+<span class="sourceLineNo">676</span>  @Override<a name="line.676"></a>
+<span class="sourceLineNo">677</span>  public void registerFlushRequestListener(final FlushRequestListener listener) {<a name="line.677"></a>
+<span class="sourceLineNo">678</span>    this.flushRequestListeners.add(listener);<a name="line.678"></a>
+<span class="sourceLineNo">679</span>  }<a name="line.679"></a>
+<span class="sourceLineNo">680</span><a name="line.680"></a>
+<span class="sourceLineNo">681</span>  /**<a name="line.681"></a>
+<span class="sourceLineNo">682</span>   * Unregister the listener from MemstoreFlushListeners<a name="line.682"></a>
+<span class="sourceLineNo">683</span>   * @param listener<a name="line.683"></a>
+<span class="sourceLineNo">684</span>   * @return true when passed listener is unregistered successfully.<a name="line.684"></a>
+<span class="sourceLineNo">685</span>   */<a name="line.685"></a>
+<span class="sourceLineNo">686</span>  @Override<a name="line.686"></a>
+<span class="sourceLineNo">687</span>  public boolean unregisterFlushRequestListener(final FlushRequestListener listener) {<a name="line.687"></a>
+<span class="sourceLineNo">688</span>    return this.flushRequestListeners.remove(listener);<a name="line.688"></a>
+<span class="sourceLineNo">689</span>  }<a name="line.689"></a>
+<span class="sourceLineNo">690</span><a name="line.690"></a>
+<span class="sourceLineNo">691</span>  /**<a name="line.691"></a>
+<span class="sourceLineNo">692</span>   * Sets the global memstore limit to a new size.<a name="line.692"></a>
+<span class="sourceLineNo">693</span>   * @param globalMemStoreSize<a name="line.693"></a>
+<span class="sourceLineNo">694</span>   */<a name="line.694"></a>
+<span class="sourceLineNo">695</span>  @Override<a name="line.695"></a>
+<span class="sourceLineNo">696</span>  public void setGlobalMemstoreLimit(long globalMemStoreSize) {<a name="line.696"></a>
+<span class="sourceLineNo">697</span>    this.server.getRegionServerAccounting().setGlobalMemstoreLimits(globalMemStoreSize);<a name="line.697"></a>
+<span class="sourceLineNo">698</span>    reclaimMemStoreMemory();<a name="line.698"></a>
+<span class="sourceLineNo">699</span>  }<a name="line.699"></a>
+<span class="sourceLineNo">700</span><a name="line.700"></a>
+<span class="sourceLineNo">701</span>  interface FlushQueueEntry extends Delayed {<a name="line.701"></a>
+<span class="sourceLineNo">702</span>  }<a name="line.702"></a>
+<span class="sourceLineNo">703</span><a name="line.703"></a>
+<span class="sourceLineNo">704</span>  /**<a name="line.704"></a>
+<span class="sourceLineNo">705</span>   * Token to insert into the flush queue that ensures that the flusher does not sleep<a name="line.705"></a>
+<span class="sourceLineNo">706</span>   */<a name="line.706"></a>
+<span class="sourceLineNo">707</span>  static class WakeupFlushThread implements FlushQueueEntry {<a name="line.707"></a>
+<span class="sourceLineNo">708</span>    @Override<a name="line.708"></a>
+<span class="sourceLineNo">709</span>    public long getDelay(TimeUnit unit) {<a name="line.709"></a>
+<span class="sourceLineNo">710</span>      return 0;<a name="line.710"></a>
+<span class="sourceLineNo">711</span>    }<a name="line.711"></a>
+<span class="sourceLineNo">712</span><a name="line.712"></a>
+<span class="sourceLineNo">713</span>    @Override<a name="line.713"></a>
+<span class="sourceLineNo">714</span>    public int compareTo(Delayed o) {<a name="line.714"></a>
+<span class="sourceLineNo">715</span>      return -1;<a name="line.715"></a>
+<span class="sourceLineNo">716</span>    }<a name="line.716"></a>
+<span class="sourceLineNo">717</span><a name="line.717"></a>
+<span class="sourceLineNo">718</span>    @Override<a name="line.718"></a>
+<span class="sourceLineNo">719</span>    public boolean equals(Object obj) {<a name="line.719"></a>
+<span class="sourceLineNo">720</span>      return (this == obj);<a name="line.720"></a>
+<span class="sourceLineNo">721</span>    }<a name="line.721"></a>
+<span class="sourceLineNo">722</span>  }<a name="line.722"></a>
+<span class="sourceLineNo">723</span><a name="line.723"></a>
+<span class="sourceLineNo">724</span>  /**<a name="line.724"></a>
+<span class="sourceLineNo">725</span>   * Datastructure used in the flush queue.  Holds region and retry count.<a name="line.725"></a>
+<span class="sourceLineNo">726</span>   * Keeps tabs on how old this object is.  Implements {@link Delayed}.  On<a name="line.726"></a>
+<span class="sourceLineNo">727</span>   * construction, the delay is zero. When added to a delay queue, we'll come<a name="line.727"></a>
+<span class="sourceLineNo">728</span>   * out near immediately.  Call {@link #requeue(long)} passing delay in<a name="line.728"></a>
+<span class="sourceLineNo">729</span>   * milliseconds before readding to delay queue if you want it to stay there<a name="line.729"></a>
+<span class="sourceLineNo">730</span>   * a while.<a name="line.730"></a>
+<span class="sourceLineNo">731</span>   */<a name="line.731"></a>
+<span class="sourceLineNo">732</span>  static class FlushRegionEntry implements FlushQueueEntry {<a name="line.732"></a>
+<span class="sourceLineNo">733</span>    private final Region region;<a name="line.733"></a>
+<span class="sourceLineNo">734</span><a name="line.734"></a>
+<span class="sourceLineNo">735</span>    private final long createTime;<a name="line.735"></a>
+<span class="sourceLineNo">736</span>    private long whenToExpire;<a name="line.736"></a>
+<span class="sourceLineNo">737</span>    private int requeueCount = 0;<a name="line.737"></a>
 <span class="sourceLineNo">738</span><a name="line.738"></a>
-<span class="sourceLineNo">739</span>    FlushRegionEntry(final Region r, boolean forceFlushAllStores) {<a name="line.739"></a>
-<span class="sourceLineNo">740</span>      this.region = r;<a name="line.740"></a>
-<span class="sourceLineNo">741</span>      this.createTime = EnvironmentEdgeManager.currentTime();<a name="line.741"></a>
-<span class="sourceLineNo">742</span>      this.whenToExpire = this.createTime;<a name="line.742"></a>
-<span class="sourceLineNo">743</span>      this.forceFlushAllStores = forceFlushAllStores;<a name="line.743"></a>
-<span class="sourceLineNo">744</span>    }<a name="line.744"></a>
-<span class="sourceLineNo">745</span><a name="line.745"></a>
-<span class="sourceLineNo">746</span>    /**<a name="line.746"></a>
-<span class="sourceLineNo">747</span>     * @param maximumWait<a name="line.747"></a>
-<span class="sourceLineNo">748</span>     * @return True if we have been delayed &gt; &lt;code&gt;maximumWait&lt;/code&gt; milliseconds.<a name="line.748"></a>
-<span class="sourceLineNo">749</span>     */<a name="line.749"></a>
-<span class="sourceLineNo">750</span>    public boolean isMaximumWait(final long maximumWait) {<a name="line.750"></a>
-<span class="sourceLineNo">751</span>      return (EnvironmentEdgeManager.currentTime() - this.createTime) &gt; maximumWait;<a name="line.751"></a>
-<span class="sourceLineNo">752</span>    }<a name="line.752"></a>
-<span class="sourceLineNo">753</span><a name="line.753"></a>
-<span class="sourceLineNo">754</span>    /**<a name="line.754"></a>
-<span class="sourceLineNo">755</span>     * @return Count of times {@link #requeue(long)} was called; i.e this is<a name="line.755"></a>
-<span class="sourceLineNo">756</span>     * number of times we've been requeued.<a name="line.756"></a>
-<span class="sourceLineNo">757</span>     */<a name="line.757"></a>
-<span class="sourceLineNo">758</span>    public int getRequeueCount() {<a name="line.758"></a>
-<span class="sourceLineNo">759</span>      return this.requeueCount;<a name="line.759"></a>
-<span class="sourceLineNo">760</span>    }<a name="line.760"></a>
-<span class="sourceLineNo">761</span><a name="line.761"></a>
-<span class="sourceLineNo">762</span>    /**<a name="line.762"></a>
-<span class="sourceLineNo">763</span>     * @return whether we need to flush all stores.<a name="line.763"></a>
-<span class="sourceLineNo">764</span>     */<a name="line.764"></a>
-<span class="sourceLineNo">765</span>    public boolean isForceFlushAllStores() {<a name="line.765"></a>
-<span class="sourceLineNo">766</span>      return forceFlushAllStores;<a name="line.766"></a>
-<span class="sourceLineNo">767</span>    }<a name="line.767"></a>
-<span class="sourceLineNo">768</span><a name="line.768"></a>
-<span class="sourceLineNo">769</span>    /**<a name="line.769"></a>
-<span class="sourceLineNo">770</span>     * @param when When to expire, when to come up out of the queue.<a name="line.770"></a>
-<span class="sourceLineNo">771</span>     * Specify in milliseconds.  This method adds EnvironmentEdgeManager.currentTime()<a name="line.771"></a>
-<span class="sourceLineNo">772</span>     * to whatever you pass.<a name="line.772"></a>
-<span class="sourceLineNo">773</span>     * @return This.<a name="line.773"></a>
-<span class="sourceLineNo">774</span>     */<a name="line.774"></a>
-<span class="sourceLineNo">775</span>    public FlushRegionEntry requeue(final long when) {<a name="line.775"></a>
-<span class="sourceLineNo">776</span>      this.whenToExpire = EnvironmentEdgeManager.currentTime() + when;<a name="line.776"></a>
-<span class="sourceLineNo">777</span>      this.requeueCount++;<a name="line.777"></a>
-<span class="sourceLineNo">778</span>      return this;<a name="line.778"></a>
-<span class="sourceLineNo">779</span>    }<a name="line.779"></a>
-<span class="sourceLineNo">780</span><a name="line.780"></a>
-<span class="sourceLineNo">781</span>    @Override<a name="line.781"></a>
-<span class="sourceLineNo">782</span>    public long getDelay(TimeUnit unit) {<a name="line.782"></a>
-<span class="sourceLineNo">783</span>      return unit.convert(this.whenToExpire - EnvironmentEdgeManager.currentTime(),<a name="line.783"></a>
-<span class="sourceLineNo">784</span>          TimeUnit.MILLISECONDS);<a name="line.784"></a>
-<span class="sourceLineNo">785</span>    }<a name="line.785"></a>
-<span class="sourceLineNo">786</span><a name="line.786"></a>
-<span class="sourceLineNo">787</span>    @Override<a name="line.787"></a>
-<span class="sourceLineNo">788</span>    public int compareTo(Delayed other) {<a name="line.788"></a>
-<span class="sourceLineNo">789</span>      // Delay is compared first. If there is a tie, compare region's hash code<a name="line.789"></a>
-<span class="sourceLineNo">790</span>      int ret = Long.valueOf(getDelay(TimeUnit.MILLISECONDS) -<a name="line.790"></a>
-<span class="sourceLineNo">791</span>        other.getDelay(TimeUnit.MILLISECONDS)).intValue();<a name="line.791"></a>
-<span class="sourceLineNo">792</span>      if (ret != 0) {<a name="line.792"></a>
-<span class="sourceLineNo">793</span>        return ret;<a name="line.793"></a>
-<span class="sourceLineNo">794</span>      }<a name="line.794"></a>
-<span class="sourceLineNo">795</span>      FlushQueueEntry otherEntry = (FlushQueueEntry) other;<a name="line.795"></a>
-<span class="sourceLineNo">796</span>      return hashCode() - otherEntry.hashCode();<a name="line.796"></a>
-<span class="sourceLineNo">797</span>    }<a name="line.797"></a>
-<span class="sourceLineNo">798</span><a name="line.798"></a>
-<span class="sourceLineNo">799</span>    @Override<a name="line.799"></a>
-<span class="sourceLineNo">800</span>    public String toString() {<a name="line.800"></a>
-<span class="sourceLineNo">801</span>      return "[flush region "+Bytes.toStringBinary(region.getRegionInfo().getRegionName())+"]";<a name="line.801"></a>
-<span class="sourceLineNo">802</span>    }<a name="line.802"></a>
-<span class="sourceLineNo">803</span><a name="line.803"></a>
-<span class="sourceLineNo">804</span>    @Override<a name="line.804"></a>
-<span class="sourceLineNo">805</span>    public int hashCode() {<a name="line.805"></a>
-<span class="sourceLineNo">806</span>      int hash = (int) getDelay(TimeUnit.MILLISECONDS);<a name="line.806"></a>
-<span class="sourceLineNo">807</span>      return hash ^ region.hashCode();<a name="line.807"></a>
-<span class="sourceLineNo">808</span>    }<a name="line.808"></a>
-<span class="sourceLineNo">809</span><a name="line.809"></a>
-<span class="sourceLineNo">810</span>   @Override<a name="line.810"></a>
-<span class="sourceLineNo">811</span>    public boolean equals(Object obj) {<a name="line.811"></a>
-<span class="sourceLineNo">812</span>      if (this == obj) {<a name="line.812"></a>
-<span class="sourceLineNo">813</span>        return true;<a name="line.813"></a>
-<span class="sourceLineNo">814</span>      }<a name="line.814"></a>
-<span class="sourceLineNo">815</span>      if (obj == null || getClass() != obj.getClass()) {<a name="line.815"></a>
-<span class="sourceLineNo">816</span>        return false;<a name="line.816"></a>
-<span class="sourceLineNo">817</span>      }<a name="line.817"></a>
-<span class="sourceLineNo">818</span>      FlushRegionEntry other = (FlushRegionEntry) obj;<a name="line.818"></a>
-<span class="sourceLineNo">819</span>      if (!Bytes.equals(this.region.getRegionInfo().getRegionName(),<a name="line.819"></a>
-<span class="sourceLineNo">820</span>          other.region.getRegionInfo().getRegionName())) {<a name="line.820"></a>
-<span class="sourceLineNo">821</span>        return false;<a name="line.821"></a>
-<span class="sourceLineNo">822</span>      }<a name="line.822"></a>
-<span class="sourceLineNo">823</span>      return compareTo(other) == 0;<a name="line.823"></a>
-<span class="sourceLineNo">824</span>    }<a name="line.824"></a>
-<span class="sourceLineNo">825</span>  }<a name="line.825"></a>
-<span class="sourceLineNo">826</span>}<a name="line.826"></a>
+<span class="sourceLineNo">739</span>    private boolean forceFlushAllStores;<a name="line.739"></a>
+<span class="sourceLineNo">740</span><a name="line.740"></a>
+<span class="sourceLineNo">741</span>    FlushRegionEntry(final Region r, boolean forceFlushAllStores) {<a name="line.741"></a>
+<span class="sourceLineNo">742</span>      this.region = r;<a name="line.742"></a>
+<span class="sourceLineNo">743</span>      this.createTime = EnvironmentEdgeManager.currentTime();<a name="line.743"></a>
+<span class="sourceLineNo">744</span>      this.whenToExpire = this.createTime;<a name="line.744"></a>
+<span class="sourceLineNo">745</span>      this.forceFlushAllStores = forceFlushAllStores;<a name="line.745"></a>
+<span class="sourceLineNo">746</span>    }<a name="line.746"></a>
+<span class="sourceLineNo">747</span><a name="line.747"></a>
+<span class="sourceLineNo">748</span>    /**<a name="line.748"></a>
+<span class="sourceLineNo">749</span>     * @param maximumWait<a name="line.749"></a>
+<span class="sourceLineNo">750</span>     * @return True if we have been delayed &gt; &lt;code&gt;maximumWait&lt;/code&gt; milliseconds.<a name="line.750"></a>
+<span class="sourceLineNo">751</span>     */<a name="line.751"></a>
+<span class="sourceLineNo">752</span>    public boolean isMaximumWait(final long maximumWait) {<a name="line.752"></a>
+<span class="sourceLineNo">753</span>      return (EnvironmentEdgeManager.currentTime() - this.createTime) &gt; maximumWait;<a name="line.753"></a>
+<span class="sourceLineNo">754</span>    }<a name="line.754"></a>
+<span class="sourceLineNo">755</span><a name="line.755"></a>
+<span class="sourceLineNo">756</span>    /**<a name="line.756"></a>
+<span class="sourceLineNo">757</span>     * @return Count of times {@link #requeue(long)} was called; i.e this is<a name="line.757"></a>
+<span class="sourceLineNo">758</span>     * number of times we've been requeued.<a name="line.758"></a>
+<span class="sourceLineNo">759</span>     */<a name="line.759"></a>
+<span class="sourceLineNo">760</span>    public int getRequeueCount() {<a name="line.760"></a>
+<span class="sourceLineNo">761</span>      return this.requeueCount;<a name="line.761"></a>
+<span class="sourceLineNo">762</span>    }<a name="line.762"></a>
+<span class="sourceLineNo">763</span><a name="line.763"></a>
+<span class="sourceLineNo">764</span>    /**<a name="line.764"></a>
+<span class="sourceLineNo">765</span>     * @return whether we need to flush all stores.<a name="line.765"></a>
+<span class="sourceLineNo">766</span>     */<a name="line.766"></a>
+<span class="sourceLineNo">767</span>    public boolean isForceFlushAllStores() {<a name="line.767"></a>
+<span class="sourceLineNo">768</span>      return forceFlushAllStores;<a name="line.768"></a>
+<span class="sourceLineNo">769</span>    }<a name="line.769"></a>
+<span class="sourceLineNo">770</span><a name="line.770"></a>
+<span class="sourceLineNo">771</span>    /**<a name="line.771"></a>
+<span class="sourceLineNo">772</span>     * @param when When to expire, when to come up out of the queue.<a name="line.772"></a>
+<span class="sourceLineNo">773</span>     * Specify in milliseconds.  This method adds EnvironmentEdgeManager.currentTime()<a name="line.773"></a>
+<span class="sourceLineNo">774</span>     * to whatever you pass.<a name="line.774"></a>
+<span class="sourceLineNo">775</span>     * @return This.<a name="line.775"></a>
+<span class="sourceLineNo">776</span>     */<a name="line.776"></a>
+<span class="sourceLineNo">777</span>    public FlushRegionEntry requeue(final long when) {<a name="line.777"></a>
+<span class="sourceLineNo">778</span>      this.whenToExpire = EnvironmentEdgeManager.currentTime() + when;<a name="line.778"></a>
+<span class="sourceLineNo">779</span>      this.requeueCount++;<a name="line.779"></a>
+<span class="sourceLineNo">780</span>      return this;<a name="line.780"></a>
+<span class="sourceLineNo">781</span>    }<a name="line.781"></a>
+<span class="sourceLineNo">782</span><a name="line.782"></a>
+<span class="sourceLineNo">783</span>    @Override<a name="line.783"></a>
+<span class="sourceLineNo">784</span>    public long getDelay(TimeUnit unit) {<a name="line.784"></a>
+<span class="sourceLineNo">785</span>      return unit.convert(this.whenToExpire - EnvironmentEdgeManager.currentTime(),<a name="line.785"></a>
+<span class="sourceLineNo">786</span>          TimeUnit.MILLISECONDS);<a name="line.786"></a>
+<span class="sourceLineNo">787</span>    }<a name="line.787"></a>
+<span class="sourceLineNo">788</span><a name="line.788"></a>
+<span class="sourceLineNo">789</span>    @Override<a name="line.789"></a>
+<span class="sourceLineNo">790</span>    public int compareTo(Delayed other) {<a name="line.790"></a>
+<span class="sourceLineNo">791</span>      // Delay is compared first. If there is a tie, compare region's hash code<a name="line.791"></a>
+<span class="sourceLineNo">792</span>      int ret = Long.valueOf(getDelay(TimeUnit.MILLISECONDS) -<a name="line.792"></a>
+<span class="sourceLineNo">793</span>        other.getDelay(TimeUnit.MILLISECONDS)).intValue();<a name="line.793"></a>
+<span class="sourceLineNo">794</span>      if (ret != 0) {<a name="line.794"></a>
+<span class="sourceLineNo">795</span>        return ret;<a name="line.795"></a>
+<span class="sourceLineNo">796</span>      }<a name="line.796"></a>
+<span class="sourceLineNo">797</span>      FlushQueueEntry otherEntry = (FlushQueueEntry) other;<a name="line.797"></a>
+<span class="sourceLineNo">798</span>      return hashCode() - otherEntry.hashCode();<a name="line.798"></a>
+<span class="sourceLineNo">799</span>    }<a name="line.799"></a>
+<span class="sourceLineNo">800</span><a name="line.800"></a>
+<span class="sourceLineNo">801</span>    @Override<a name="line.801"></a>
+<span class="sourceLineNo">802</span>    public String toString() {<a name="line.802"></a>
+<span class="sourceLineNo">803</span>      return "[flush region "+Bytes.toStringBinary(region.getRegionInfo().getRegionName())+"]";<a name="line.803"></a>
+<span class="sourceLineNo">804</span>    }<a name="line.804"></a>
+<span class="sourceLineNo">805</span><a name="line.805"></a>
+<span class="sourceLineNo">806</span>    @Override<a name="line.806"></a>
+<span class="sourceLineNo">807</span>    public int hashCode() {<a name="line.807"></a>
+<span class="sourceLineNo">808</span>      int hash = (int) getDelay(TimeUnit.MILL

<TRUNCATED>

Mime
View raw message