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From mi...@apache.org
Subject [05/51] [partial] hbase-site git commit: Published site at 29a192ef3cbe3b9cc12a6ee38f39e1199ac9790f.
Date Thu, 11 Feb 2016 17:34:11 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8bb348c6/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.RegionTask.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.RegionTask.html b/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.RegionTask.html
index d3abe39..c51826f 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.RegionTask.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/tool/Canary.RegionTask.html
@@ -615,9 +615,9 @@
 <span class="sourceLineNo">607</span>            if (this.failOnError &amp;&amp; monitor.hasError()) {<a name="line.607"></a>
 <span class="sourceLineNo">608</span>              monitorThread.interrupt();<a name="line.608"></a>
 <span class="sourceLineNo">609</span>              if (monitor.initialized) {<a name="line.609"></a>
-<span class="sourceLineNo">610</span>                System.exit(monitor.errorCode);<a name="line.610"></a>
+<span class="sourceLineNo">610</span>                return monitor.errorCode;<a name="line.610"></a>
 <span class="sourceLineNo">611</span>              } else {<a name="line.611"></a>
-<span class="sourceLineNo">612</span>                System.exit(INIT_ERROR_EXIT_CODE);<a name="line.612"></a>
+<span class="sourceLineNo">612</span>                return INIT_ERROR_EXIT_CODE;<a name="line.612"></a>
 <span class="sourceLineNo">613</span>              }<a name="line.613"></a>
 <span class="sourceLineNo">614</span>            }<a name="line.614"></a>
 <span class="sourceLineNo">615</span>            currentTimeLength = System.currentTimeMillis() - startTime;<a name="line.615"></a>
@@ -626,630 +626,629 @@
 <span class="sourceLineNo">618</span>                  + ") after timeout limit:" + this.timeout<a name="line.618"></a>
 <span class="sourceLineNo">619</span>                  + " will be killed itself !!");<a name="line.619"></a>
 <span class="sourceLineNo">620</span>              if (monitor.initialized) {<a name="line.620"></a>
-<span class="sourceLineNo">621</span>                System.exit(TIMEOUT_ERROR_EXIT_CODE);<a name="line.621"></a>
+<span class="sourceLineNo">621</span>                return TIMEOUT_ERROR_EXIT_CODE;<a name="line.621"></a>
 <span class="sourceLineNo">622</span>              } else {<a name="line.622"></a>
-<span class="sourceLineNo">623</span>                System.exit(INIT_ERROR_EXIT_CODE);<a name="line.623"></a>
+<span class="sourceLineNo">623</span>                return INIT_ERROR_EXIT_CODE;<a name="line.623"></a>
 <span class="sourceLineNo">624</span>              }<a name="line.624"></a>
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-<span class="sourceLineNo">628</span><a name="line.628"></a>
-<span class="sourceLineNo">629</span>          if (this.failOnError &amp;&amp; monitor.finalCheckForErrors()) {<a name="line.629"></a>
-<span class="sourceLineNo">630</span>            monitorThread.interrupt();<a name="line.630"></a>
-<span class="sourceLineNo">631</span>            System.exit(monitor.errorCode);<a name="line.631"></a>
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-<span class="sourceLineNo">633</span>        } finally {<a name="line.633"></a>
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-<span class="sourceLineNo">637</span>        Thread.sleep(interval);<a name="line.637"></a>
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-<span class="sourceLineNo">639</span>    } // try-with-resources close<a name="line.639"></a>
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-<span class="sourceLineNo">647</span>  private void printUsageAndExit() {<a name="line.647"></a>
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-<span class="sourceLineNo">649</span>      "Usage: bin/hbase %s [opts] [table1 [table2]...] | [regionserver1 [regionserver2]..]%n",<a name="line.649"></a>
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-<span class="sourceLineNo">651</span>    System.err.println(" where [opts] are:");<a name="line.651"></a>
-<span class="sourceLineNo">652</span>    System.err.println("   -help          Show this help and exit.");<a name="line.652"></a>
-<span class="sourceLineNo">653</span>    System.err.println("   -regionserver  replace the table argument to regionserver,");<a name="line.653"></a>
-<span class="sourceLineNo">654</span>    System.err.println("      which means to enable regionserver mode");<a name="line.654"></a>
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-<span class="sourceLineNo">659</span>    System.err.println("   -e             Use table/regionserver as regular expression");<a name="line.659"></a>
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-<span class="sourceLineNo">661</span>    System.err.println("   -f &lt;B&gt;         stop whole program if first error occurs," +<a name="line.661"></a>
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+<span class="sourceLineNo">664</span>    System.err.println("   -treatFailureAsError treats read / write failure as error");<a name="line.664"></a>
+<span class="sourceLineNo">665</span>    System.err.println("   -writeTable    The table used for write sniffing."<a name="line.665"></a>
+<span class="sourceLineNo">666</span>        + " Default is hbase:canary");<a name="line.666"></a>
+<span class="sourceLineNo">667</span>    System.err<a name="line.667"></a>
+<span class="sourceLineNo">668</span>        .println("   -D&lt;configProperty&gt;=&lt;value&gt; assigning or override the configuration params");<a name="line.668"></a>
+<span class="sourceLineNo">669</span>    System.exit(USAGE_EXIT_CODE);<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>   * A Factory method for {@link Monitor}.<a name="line.673"></a>
+<span class="sourceLineNo">674</span>   * Can be overridden by user.<a name="line.674"></a>
+<span class="sourceLineNo">675</span>   * @param index a start index for monitor target<a name="line.675"></a>
+<span class="sourceLineNo">676</span>   * @param args args passed from user<a name="line.676"></a>
+<span class="sourceLineNo">677</span>   * @return a Monitor instance<a name="line.677"></a>
+<span class="sourceLineNo">678</span>   */<a name="line.678"></a>
+<span class="sourceLineNo">679</span>  public Monitor newMonitor(final Connection connection, int index, String[] args) {<a name="line.679"></a>
+<span class="sourceLineNo">680</span>    Monitor monitor = null;<a name="line.680"></a>
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+<span class="sourceLineNo">682</span><a name="line.682"></a>
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+<span class="sourceLineNo">686</span>      System.arraycopy(args, index, monitorTargets, 0, length);<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>
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+<span class="sourceLineNo">692</span>              (ExtendedSink) this.sink, this.executor, this.regionServerAllRegions,<a name="line.692"></a>
+<span class="sourceLineNo">693</span>              this.treatFailureAsError);<a name="line.693"></a>
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+<span class="sourceLineNo">697</span>              this.writeSniffing, this.writeTableName, this.treatFailureAsError);<a name="line.697"></a>
+<span class="sourceLineNo">698</span>    }<a name="line.698"></a>
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+<span class="sourceLineNo">701</span><a name="line.701"></a>
+<span class="sourceLineNo">702</span>  // a Monitor super-class can be extended by users<a name="line.702"></a>
+<span class="sourceLineNo">703</span>  public static abstract class Monitor implements Runnable, Closeable {<a name="line.703"></a>
+<span class="sourceLineNo">704</span><a name="line.704"></a>
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+<span class="sourceLineNo">706</span>    protected Admin admin;<a name="line.706"></a>
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+<span class="sourceLineNo">708</span>    protected boolean useRegExp;<a name="line.708"></a>
+<span class="sourceLineNo">709</span>    protected boolean treatFailureAsError;<a name="line.709"></a>
+<span class="sourceLineNo">710</span>    protected boolean initialized = false;<a name="line.710"></a>
+<span class="sourceLineNo">711</span><a name="line.711"></a>
+<span class="sourceLineNo">712</span>    protected boolean done = false;<a name="line.712"></a>
+<span class="sourceLineNo">713</span>    protected int errorCode = 0;<a name="line.713"></a>
+<span class="sourceLineNo">714</span>    protected Sink sink;<a name="line.714"></a>
+<span class="sourceLineNo">715</span>    protected ExecutorService executor;<a name="line.715"></a>
+<span class="sourceLineNo">716</span><a name="line.716"></a>
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+<span class="sourceLineNo">720</span><a name="line.720"></a>
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+<span class="sourceLineNo">724</span><a name="line.724"></a>
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+<span class="sourceLineNo">728</span>      }<a name="line.728"></a>
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+<span class="sourceLineNo">730</span>          (sink.getReadFailureCount() &gt; 0 || sink.getWriteFailureCount() &gt; 0);<a name="line.730"></a>
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+<span class="sourceLineNo">732</span><a name="line.732"></a>
+<span class="sourceLineNo">733</span>    @Override<a name="line.733"></a>
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+<span class="sourceLineNo">736</span>    }<a name="line.736"></a>
+<span class="sourceLineNo">737</span><a name="line.737"></a>
+<span class="sourceLineNo">738</span>    protected Monitor(Connection connection, String[] monitorTargets, boolean useRegExp, Sink sink,<a name="line.738"></a>
+<span class="sourceLineNo">739</span>        ExecutorService executor, boolean treatFailureAsError) {<a name="line.739"></a>
+<span class="sourceLineNo">740</span>      if (null == connection) throw new IllegalArgumentException("connection shall not be null");<a name="line.740"></a>
+<span class="sourceLineNo">741</span><a name="line.741"></a>
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+<span class="sourceLineNo">743</span>      this.targets = monitorTargets;<a name="line.743"></a>
+<span class="sourceLineNo">744</span>      this.useRegExp = useRegExp;<a name="line.744"></a>
+<span class="sourceLineNo">745</span>      this.treatFailureAsError = treatFailureAsError;<a name="line.745"></a>
+<span class="sourceLineNo">746</span>      this.sink = sink;<a name="line.746"></a>
+<span class="sourceLineNo">747</span>      this.executor = executor;<a name="line.747"></a>
+<span class="sourceLineNo">748</span>    }<a name="line.748"></a>
+<span class="sourceLineNo">749</span><a name="line.749"></a>
+<span class="sourceLineNo">750</span>    @Override<a name="line.750"></a>
+<span class="sourceLineNo">751</span>    public abstract void run();<a name="line.751"></a>
+<span class="sourceLineNo">752</span><a name="line.752"></a>
+<span class="sourceLineNo">753</span>    protected boolean initAdmin() {<a name="line.753"></a>
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+<span class="sourceLineNo">755</span>        try {<a name="line.755"></a>
+<span class="sourceLineNo">756</span>          this.admin = this.connection.getAdmin();<a name="line.756"></a>
+<span class="sourceLineNo">757</span>        } catch (Exception e) {<a name="line.757"></a>
+<span class="sourceLineNo">758</span>          LOG.error("Initial HBaseAdmin failed...", e);<a name="line.758"></a>
+<span class="sourceLineNo">759</span>          this.errorCode = INIT_ERROR_EXIT_CODE;<a name="line.759"></a>
+<span class="sourceLineNo">760</span>        }<a name="line.760"></a>
+<span class="sourceLineNo">761</span>      } else if (admin.isAborted()) {<a name="line.761"></a>
+<span class="sourceLineNo">762</span>        LOG.error("HBaseAdmin aborted");<a name="line.762"></a>
+<span class="sourceLineNo">763</span>        this.errorCode = INIT_ERROR_EXIT_CODE;<a name="line.763"></a>
+<span class="sourceLineNo">764</span>      }<a name="line.764"></a>
+<span class="sourceLineNo">765</span>      return !this.hasError();<a name="line.765"></a>
+<span class="sourceLineNo">766</span>    }<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 monitor for region mode<a name="line.769"></a>
+<span class="sourceLineNo">770</span>  private static class RegionMonitor extends Monitor {<a name="line.770"></a>
+<span class="sourceLineNo">771</span>    // 10 minutes<a name="line.771"></a>
+<span class="sourceLineNo">772</span>    private static final int DEFAULT_WRITE_TABLE_CHECK_PERIOD = 10 * 60 * 1000;<a name="line.772"></a>
+<span class="sourceLineNo">773</span>    // 1 days<a name="line.773"></a>
+<span class="sourceLineNo">774</span>    private static final int DEFAULT_WRITE_DATA_TTL = 24 * 60 * 60;<a name="line.774"></a>
+<span class="sourceLineNo">775</span><a name="line.775"></a>
+<span class="sourceLineNo">776</span>    private long lastCheckTime = -1;<a name="line.776"></a>
+<span class="sourceLineNo">777</span>    private boolean writeSniffing;<a name="line.777"></a>
+<span class="sourceLineNo">778</span>    private TableName writeTableName;<a name="line.778"></a>
+<span class="sourceLineNo">779</span>    private int writeDataTTL;<a name="line.779"></a>
+<span class="sourceLineNo">780</span>    private float regionsLowerLimit;<a name="line.780"></a>
+<span class="sourceLineNo">781</span>    private float regionsUpperLimit;<a name="line.781"></a>
+<span class="sourceLineNo">782</span>    private int checkPeriod;<a name="line.782"></a>
+<span class="sourceLineNo">783</span><a name="line.783"></a>
+<span class="sourceLineNo">784</span>    public RegionMonitor(Connection connection, String[] monitorTargets, boolean useRegExp,<a name="line.784"></a>
+<span class="sourceLineNo">785</span>        Sink sink, ExecutorService executor, boolean writeSniffing, TableName writeTableName,<a name="line.785"></a>
+<span class="sourceLineNo">786</span>        boolean treatFailureAsError) {<a name="line.786"></a>
+<span class="sourceLineNo">787</span>      super(connection, monitorTargets, useRegExp, sink, executor, treatFailureAsError);<a name="line.787"></a>
+<span class="sourceLineNo">788</span>      Configuration conf = connection.getConfiguration();<a name="line.788"></a>
+<span class="sourceLineNo">789</span>      this.writeSniffing = writeSniffing;<a name="line.789"></a>
+<span class="sourceLineNo">790</span>      this.writeTableName = writeTableName;<a name="line.790"></a>
+<span class="sourceLineNo">791</span>      this.writeDataTTL =<a name="line.791"></a>
+<span class="sourceLineNo">792</span>          conf.getInt(HConstants.HBASE_CANARY_WRITE_DATA_TTL_KEY, DEFAULT_WRITE_DATA_TTL);<a name="line.792"></a>
+<span class="sourceLineNo">793</span>      this.regionsLowerLimit =<a name="line.793"></a>
+<span class="sourceLineNo">794</span>          conf.getFloat(HConstants.HBASE_CANARY_WRITE_PERSERVER_REGIONS_LOWERLIMIT_KEY, 1.0f);<a name="line.794"></a>
+<span class="sourceLineNo">795</span>      this.regionsUpperLimit =<a name="line.795"></a>
+<span class="sourceLineNo">796</span>          conf.getFloat(HConstants.HBASE_CANARY_WRITE_PERSERVER_REGIONS_UPPERLIMIT_KEY, 1.5f);<a name="line.796"></a>
+<span class="sourceLineNo">797</span>      this.checkPeriod =<a name="line.797"></a>
+<span class="sourceLineNo">798</span>          conf.getInt(HConstants.HBASE_CANARY_WRITE_TABLE_CHECK_PERIOD_KEY,<a name="line.798"></a>
+<span class="sourceLineNo">799</span>            DEFAULT_WRITE_TABLE_CHECK_PERIOD);<a name="line.799"></a>
+<span class="sourceLineNo">800</span>    }<a name="line.800"></a>
+<span class="sourceLineNo">801</span><a name="line.801"></a>
+<span class="sourceLineNo">802</span>    @Override<a name="line.802"></a>
+<span class="sourceLineNo">803</span>    public void run() {<a name="line.803"></a>
+<span class="sourceLineNo">804</span>      if (this.initAdmin()) {<a name="line.804"></a>
+<span class="sourceLineNo">805</span>        try {<a name="line.805"></a>
+<span class="sourceLineNo">806</span>          List&lt;Future&lt;Void&gt;&gt; taskFutures = new LinkedList&lt;Future&lt;Void&gt;&gt;();<a name="line.806"></a>
+<span class="sourceLineNo">807</span>          if (this.targets != null &amp;&amp; this.targets.length &gt; 0) {<a name="line.807"></a>
+<span class="sourceLineNo">808</span>            String[] tables = generateMonitorTables(this.targets);<a name="line.808"></a>
+<span class="sourceLineNo">809</span>            this.initialized = true;<a name="line.809"></a>
+<span class="sourceLineNo">810</span>            for (String table : tables) {<a name="line.810"></a>
+<span class="sourceLineNo">811</span>              taskFutures.addAll(Canary.sniff(admin, sink, table, executor, TaskType.READ));<a name="line.811"></a>
+<span class="sourceLineNo">812</span>            }<a name="line.812"></a>
+<span class="sourceLineNo">813</span>          } else {<a name="line.813"></a>
+<span class="sourceLineNo">814</span>            taskFutures.addAll(sniff(TaskType.READ));<a name="line.814"></a>
+<span class="sourceLineNo">815</span>          }<a name="line.815"></a>
+<span class="sourceLineNo">816</span><a name="line.816"></a>
+<span class="sourceLineNo">817</span>          if (writeSniffing) {<a name="line.817"></a>
+<span class="sourceLineNo">818</span>            if (EnvironmentEdgeManager.currentTime() - lastCheckTime &gt; checkPeriod) {<a name="line.818"></a>
+<span class="sourceLineNo">819</span>              try {<a name="line.819"></a>
+<span class="sourceLineNo">820</span>                checkWriteTableDistribution();<a name="line.820"></a>
+<span class="sourceLineNo">821</span>              } catch (IOException e) {<a name="line.821"></a>
+<span class="sourceLineNo">822</span>                LOG.error("Check canary table distribution failed!", e);<a name="line.822"></a>
+<span class="sourceLineNo">823</span>              }<a name="line.823"></a>
+<span class="sourceLineNo">824</span>              lastCheckTime = EnvironmentEdgeManager.currentTime();<a name="line.824"></a>
+<span class="sourceLineNo">825</span>            }<a name="line.825"></a>
+<span class="sourceLineNo">826</span>            // sniff canary table with write operation<a name="line.826"></a>
+<span class="sourceLineNo">827</span>            taskFutures.addAll(Canary.sniff(admin, sink,<a name="line.827"></a>
+<span class="sourceLineNo">828</span>              admin.getTableDescriptor(writeTableName), executor, TaskType.WRITE));<a name="line.828"></a>
+<span class="sourceLineNo">829</span>          }<a name="line.829"></a>
+<span class="sourceLineNo">830</span><a name="line.830"></a>
+<span class="sourceLineNo">831</span>          for (Future&lt;Void&gt; future : taskFutures) {<a name="line.831"></a>
+<span class="sourceLineNo">832</span>            try {<a name="line.832"></a>
+<span class="sourceLineNo">833</span>              future.get();<a name="line.833"></a>
+<span class="sourceLineNo">834</span>            } catch (ExecutionException e) {<a name="line.834"></a>
+<span class="sourceLineNo">835</span>              LOG.error("Sniff region failed!", e);<a name="line.835"></a>
+<span class="sourceLineNo">836</span>            }<a name="line.836"></a>
+<span class="sourceLineNo">837</span>          }<a name="line.837"></a>
+<span class="sourceLineNo">838</span>        } catch (Exception e) {<a name="line.838"></a>
+<span class="sourceLineNo">839</span>          LOG.error("Run regionMonitor failed", e);<a name="line.839"></a>
+<span class="sourceLineNo">840</span>          this.errorCode = ERROR_EXIT_CODE;<a name="line.840"></a>
+<span class="sourceLineNo">841</span>        }<a name="line.841"></a>
+<span class="sourceLineNo">842</span>      }<a name="line.842"></a>
+<span class="sourceLineNo">843</span>      this.done = true;<a name="line.843"></a>
+<span class="sourceLineNo">844</span>    }<a name="line.844"></a>
+<span class="sourceLineNo">845</span><a name="line.845"></a>
+<span class="sourceLineNo">846</span>    private String[] generateMonitorTables(String[] monitorTargets) throws IOException {<a name="line.846"></a>
+<span class="sourceLineNo">847</span>      String[] returnTables = null;<a name="line.847"></a>
+<span class="sourceLineNo">848</span><a name="line.848"></a>
+<span class="sourceLineNo">849</span>      if (this.useRegExp) {<a name="line.849"></a>
+<span class="sourceLineNo">850</span>        Pattern pattern = null;<a name="line.850"></a>
+<span class="sourceLineNo">851</span>        HTableDescriptor[] tds = null;<a name="line.851"></a>
+<span class="sourceLineNo">852</span>        Set&lt;String&gt; tmpTables = new TreeSet&lt;String&gt;();<a name="line.852"></a>
+<span class="sourceLineNo">853</span>        try {<a name="line.853"></a>
+<span class="sourceLineNo">854</span>          if (LOG.isDebugEnabled()) {<a name="line.854"></a>
+<span class="sourceLineNo">855</span>            LOG.debug(String.format("reading list of tables"));<a name="line.855"></a>
+<span class="sourceLineNo">856</span>          }<a name="line.856"></a>
+<span class="sourceLineNo">857</span>          tds = this.admin.listTables(pattern);<a name="line.857"></a>
+<span class="sourceLineNo">858</span>          if (tds == null) {<a name="line.858"></a>
+<span class="sourceLineNo">859</span>            tds = new HTableDescriptor[0];<a name="line.859"></a>
+<span class="sourceLineNo">860</span>          }<a name="line.860"></a>
+<span class="sourceLineNo">861</span>          for (String monitorTarget : monitorTargets) {<a name="line.861"></a>
+<span class="sourceLineNo">862</span>            pattern = Pattern.compile(monitorTarget);<a name="line.862"></a>
+<span class="sourceLineNo">863</span>            for (HTableDescriptor td : tds) {<a name="line.863"></a>
+<span class="sourceLineNo">864</span>              if (pattern.matcher(td.getNameAsString()).matches()) {<a name="line.864"></a>
+<span class="sourceLineNo">865</span>                tmpTables.add(td.getNameAsString());<a name="line.865"></a>
+<span class="sourceLineNo">866</span>              }<a name="line.866"></a>
+<span class="sourceLineNo">867</span>            }<a name="line.867"></a>
+<span class="sourceLineNo">868</span>          }<a name="line.868"></a>
+<span class="sourceLineNo">869</span>        } catch (IOException e) {<a name="line.869"></a>
+<span class="sourceLineNo">870</span>          LOG.error("Communicate with admin failed", e);<a name="line.870"></a>
+<span class="sourceLineNo">871</span>          throw e;<a name="line.871"></a>
+<span class="sourceLineNo">872</span>        }<a name="line.872"></a>
+<span class="sourceLineNo">873</span><a name="line.873"></a>
+<span class="sourceLineNo">874</span>        if (tmpTables.size() &gt; 0) {<a name="line.874"></a>
+<span class="sourceLineNo">875</span>          returnTables = tmpTables.toArray(new String[tmpTables.size()]);<a name="line.875"></a>
+<span class="sourceLineNo">876</span>        } else {<a name="line.876"></a>
+<span class="sourceLineNo">877</span>          String msg = "No HTable found, tablePattern:" + Arrays.toString(monitorTargets);<a name="line.877"></a>
+<span class="sourceLineNo">878</span>          LOG.error(msg);<a name="line.878"></a>
+<span class="sourceLineNo">879</span>          this.errorCode = INIT_ERROR_EXIT_CODE;<a name="line.879"></a>
+<span class="sourceLineNo">880</span>          throw new TableNotFoundException(msg);<a name="line.880"></a>
+<span class="sourceLineNo">881</span>        }<a name="line.881"></a>
+<span class="sourceLineNo">882</span>      } else {<a name="line.882"></a>
+<span class="sourceLineNo">883</span>       

<TRUNCATED>

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