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From git-site-r...@apache.org
Subject [10/51] [partial] hbase-site git commit: Published site at .
Date Wed, 11 Oct 2017 15:13:15 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c0571676/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.RowLockImpl.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.RowLockImpl.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.RowLockImpl.html
index 41e0c24..eac35d3 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.RowLockImpl.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.RowLockImpl.html
@@ -110,8004 +110,8178 @@
 <span class="sourceLineNo">102</span>import org.apache.hadoop.hbase.UnknownScannerException;<a name="line.102"></a>
 <span class="sourceLineNo">103</span>import org.apache.hadoop.hbase.client.Append;<a name="line.103"></a>
 <span class="sourceLineNo">104</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.104"></a>
-<span class="sourceLineNo">105</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.105"></a>
-<span class="sourceLineNo">106</span>import org.apache.hadoop.hbase.client.Durability;<a name="line.106"></a>
-<span class="sourceLineNo">107</span>import org.apache.hadoop.hbase.client.Get;<a name="line.107"></a>
-<span class="sourceLineNo">108</span>import org.apache.hadoop.hbase.client.Increment;<a name="line.108"></a>
-<span class="sourceLineNo">109</span>import org.apache.hadoop.hbase.client.IsolationLevel;<a name="line.109"></a>
-<span class="sourceLineNo">110</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.110"></a>
-<span class="sourceLineNo">111</span>import org.apache.hadoop.hbase.client.PackagePrivateFieldAccessor;<a name="line.111"></a>
-<span class="sourceLineNo">112</span>import org.apache.hadoop.hbase.client.Put;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.113"></a>
-<span class="sourceLineNo">114</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.114"></a>
-<span class="sourceLineNo">115</span>import org.apache.hadoop.hbase.client.Result;<a name="line.115"></a>
-<span class="sourceLineNo">116</span>import org.apache.hadoop.hbase.client.RowMutations;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.117"></a>
-<span class="sourceLineNo">118</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.118"></a>
-<span class="sourceLineNo">119</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.119"></a>
-<span class="sourceLineNo">120</span>import org.apache.hadoop.hbase.conf.ConfigurationManager;<a name="line.120"></a>
-<span class="sourceLineNo">121</span>import org.apache.hadoop.hbase.conf.PropagatingConfigurationObserver;<a name="line.121"></a>
-<span class="sourceLineNo">122</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver.MutationType;<a name="line.122"></a>
-<span class="sourceLineNo">123</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionSnare;<a name="line.123"></a>
-<span class="sourceLineNo">124</span>import org.apache.hadoop.hbase.exceptions.FailedSanityCheckException;<a name="line.124"></a>
-<span class="sourceLineNo">125</span>import org.apache.hadoop.hbase.exceptions.RegionInRecoveryException;<a name="line.125"></a>
-<span class="sourceLineNo">126</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.126"></a>
-<span class="sourceLineNo">127</span>import org.apache.hadoop.hbase.exceptions.UnknownProtocolException;<a name="line.127"></a>
-<span class="sourceLineNo">128</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.128"></a>
-<span class="sourceLineNo">129</span>import org.apache.hadoop.hbase.filter.FilterWrapper;<a name="line.129"></a>
-<span class="sourceLineNo">130</span>import org.apache.hadoop.hbase.filter.IncompatibleFilterException;<a name="line.130"></a>
-<span class="sourceLineNo">131</span>import org.apache.hadoop.hbase.io.HFileLink;<a name="line.131"></a>
-<span class="sourceLineNo">132</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.132"></a>
-<span class="sourceLineNo">133</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.133"></a>
-<span class="sourceLineNo">134</span>import org.apache.hadoop.hbase.io.hfile.HFile;<a name="line.134"></a>
-<span class="sourceLineNo">135</span>import org.apache.hadoop.hbase.ipc.CallerDisconnectedException;<a name="line.135"></a>
-<span class="sourceLineNo">136</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils;<a name="line.136"></a>
-<span class="sourceLineNo">137</span>import org.apache.hadoop.hbase.ipc.RpcCall;<a name="line.137"></a>
-<span class="sourceLineNo">138</span>import org.apache.hadoop.hbase.ipc.RpcServer;<a name="line.138"></a>
-<span class="sourceLineNo">139</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.139"></a>
-<span class="sourceLineNo">140</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.140"></a>
-<span class="sourceLineNo">141</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl.WriteEntry;<a name="line.141"></a>
-<span class="sourceLineNo">142</span>import org.apache.hadoop.hbase.regionserver.ScannerContext.LimitScope;<a name="line.142"></a>
-<span class="sourceLineNo">143</span>import org.apache.hadoop.hbase.regionserver.ScannerContext.NextState;<a name="line.143"></a>
-<span class="sourceLineNo">144</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionContext;<a name="line.144"></a>
-<span class="sourceLineNo">145</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.145"></a>
-<span class="sourceLineNo">146</span>import org.apache.hadoop.hbase.regionserver.throttle.CompactionThroughputControllerFactory;<a name="line.146"></a>
-<span class="sourceLineNo">147</span>import org.apache.hadoop.hbase.regionserver.throttle.NoLimitThroughputController;<a name="line.147"></a>
-<span class="sourceLineNo">148</span>import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.149"></a>
-<span class="sourceLineNo">150</span>import org.apache.hadoop.hbase.security.User;<a name="line.150"></a>
-<span class="sourceLineNo">151</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.151"></a>
-<span class="sourceLineNo">152</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.152"></a>
-<span class="sourceLineNo">153</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.153"></a>
-<span class="sourceLineNo">154</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.154"></a>
-<span class="sourceLineNo">155</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.155"></a>
-<span class="sourceLineNo">156</span>import org.apache.hadoop.hbase.util.CollectionUtils;<a name="line.156"></a>
-<span class="sourceLineNo">157</span>import org.apache.hadoop.hbase.util.CompressionTest;<a name="line.157"></a>
-<span class="sourceLineNo">158</span>import org.apache.hadoop.hbase.util.EncryptionTest;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.160"></a>
-<span class="sourceLineNo">161</span>import org.apache.hadoop.hbase.util.HashedBytes;<a name="line.161"></a>
-<span class="sourceLineNo">162</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.162"></a>
-<span class="sourceLineNo">163</span>import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;<a name="line.163"></a>
-<span class="sourceLineNo">164</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.164"></a>
-<span class="sourceLineNo">165</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.165"></a>
-<span class="sourceLineNo">166</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.166"></a>
-<span class="sourceLineNo">167</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.167"></a>
-<span class="sourceLineNo">168</span>import org.apache.hadoop.hbase.wal.WALKey;<a name="line.168"></a>
-<span class="sourceLineNo">169</span>import org.apache.hadoop.hbase.wal.WALSplitter;<a name="line.169"></a>
-<span class="sourceLineNo">170</span>import org.apache.hadoop.hbase.wal.WALSplitter.MutationReplay;<a name="line.170"></a>
-<span class="sourceLineNo">171</span>import org.apache.hadoop.io.MultipleIOException;<a name="line.171"></a>
-<span class="sourceLineNo">172</span>import org.apache.hadoop.util.StringUtils;<a name="line.172"></a>
-<span class="sourceLineNo">173</span>import org.apache.htrace.Trace;<a name="line.173"></a>
-<span class="sourceLineNo">174</span>import org.apache.htrace.TraceScope;<a name="line.174"></a>
-<span class="sourceLineNo">175</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.175"></a>
-<span class="sourceLineNo">176</span><a name="line.176"></a>
-<span class="sourceLineNo">177</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.177"></a>
-<span class="sourceLineNo">178</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Preconditions;<a name="line.178"></a>
-<span class="sourceLineNo">179</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;<a name="line.179"></a>
-<span class="sourceLineNo">180</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Maps;<a name="line.180"></a>
-<span class="sourceLineNo">181</span>import org.apache.hadoop.hbase.shaded.com.google.common.io.Closeables;<a name="line.181"></a>
-<span class="sourceLineNo">182</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.TextFormat;<a name="line.182"></a>
-<span class="sourceLineNo">183</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.UnsafeByteOperations;<a name="line.183"></a>
-<span class="sourceLineNo">184</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.184"></a>
-<span class="sourceLineNo">185</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse.CompactionState;<a name="line.185"></a>
-<span class="sourceLineNo">186</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;<a name="line.186"></a>
-<span class="sourceLineNo">187</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceCall;<a name="line.187"></a>
-<span class="sourceLineNo">188</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionLoad;<a name="line.188"></a>
-<span class="sourceLineNo">189</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.StoreSequenceId;<a name="line.189"></a>
-<span class="sourceLineNo">190</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.190"></a>
-<span class="sourceLineNo">191</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos;<a name="line.191"></a>
-<span class="sourceLineNo">192</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor;<a name="line.192"></a>
-<span class="sourceLineNo">193</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor;<a name="line.193"></a>
-<span class="sourceLineNo">194</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor.FlushAction;<a name="line.194"></a>
-<span class="sourceLineNo">195</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor.StoreFlushDescriptor;<a name="line.195"></a>
-<span class="sourceLineNo">196</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor;<a name="line.196"></a>
-<span class="sourceLineNo">197</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor.EventType;<a name="line.197"></a>
-<span class="sourceLineNo">198</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.StoreDescriptor;<a name="line.198"></a>
-<span class="sourceLineNo">199</span><a name="line.199"></a>
-<span class="sourceLineNo">200</span>@SuppressWarnings("deprecation")<a name="line.200"></a>
-<span class="sourceLineNo">201</span>@InterfaceAudience.Private<a name="line.201"></a>
-<span class="sourceLineNo">202</span>public class HRegion implements HeapSize, PropagatingConfigurationObserver, Region {<a name="line.202"></a>
-<span class="sourceLineNo">203</span>  private static final Log LOG = LogFactory.getLog(HRegion.class);<a name="line.203"></a>
-<span class="sourceLineNo">204</span><a name="line.204"></a>
-<span class="sourceLineNo">205</span>  public static final String LOAD_CFS_ON_DEMAND_CONFIG_KEY =<a name="line.205"></a>
-<span class="sourceLineNo">206</span>    "hbase.hregion.scan.loadColumnFamiliesOnDemand";<a name="line.206"></a>
-<span class="sourceLineNo">207</span><a name="line.207"></a>
-<span class="sourceLineNo">208</span>  public static final String HBASE_MAX_CELL_SIZE_KEY = "hbase.server.keyvalue.maxsize";<a name="line.208"></a>
-<span class="sourceLineNo">209</span>  public static final int DEFAULT_MAX_CELL_SIZE = 10485760;<a name="line.209"></a>
-<span class="sourceLineNo">210</span><a name="line.210"></a>
-<span class="sourceLineNo">211</span>  /**<a name="line.211"></a>
-<span class="sourceLineNo">212</span>   * This is the global default value for durability. All tables/mutations not<a name="line.212"></a>
-<span class="sourceLineNo">213</span>   * defining a durability or using USE_DEFAULT will default to this value.<a name="line.213"></a>
-<span class="sourceLineNo">214</span>   */<a name="line.214"></a>
-<span class="sourceLineNo">215</span>  private static final Durability DEFAULT_DURABILITY = Durability.SYNC_WAL;<a name="line.215"></a>
-<span class="sourceLineNo">216</span><a name="line.216"></a>
-<span class="sourceLineNo">217</span>  final AtomicBoolean closed = new AtomicBoolean(false);<a name="line.217"></a>
-<span class="sourceLineNo">218</span><a name="line.218"></a>
-<span class="sourceLineNo">219</span>  /* Closing can take some time; use the closing flag if there is stuff we don't<a name="line.219"></a>
-<span class="sourceLineNo">220</span>   * want to do while in closing state; e.g. like offer this region up to the<a name="line.220"></a>
-<span class="sourceLineNo">221</span>   * master as a region to close if the carrying regionserver is overloaded.<a name="line.221"></a>
-<span class="sourceLineNo">222</span>   * Once set, it is never cleared.<a name="line.222"></a>
-<span class="sourceLineNo">223</span>   */<a name="line.223"></a>
-<span class="sourceLineNo">224</span>  final AtomicBoolean closing = new AtomicBoolean(false);<a name="line.224"></a>
-<span class="sourceLineNo">225</span><a name="line.225"></a>
-<span class="sourceLineNo">226</span>  /**<a name="line.226"></a>
-<span class="sourceLineNo">227</span>   * The max sequence id of flushed data on this region. There is no edit in memory that is<a name="line.227"></a>
-<span class="sourceLineNo">228</span>   * less that this sequence id.<a name="line.228"></a>
-<span class="sourceLineNo">229</span>   */<a name="line.229"></a>
-<span class="sourceLineNo">230</span>  private volatile long maxFlushedSeqId = HConstants.NO_SEQNUM;<a name="line.230"></a>
-<span class="sourceLineNo">231</span><a name="line.231"></a>
-<span class="sourceLineNo">232</span>  /**<a name="line.232"></a>
-<span class="sourceLineNo">233</span>   * Record the sequence id of last flush operation. Can be in advance of<a name="line.233"></a>
-<span class="sourceLineNo">234</span>   * {@link #maxFlushedSeqId} when flushing a single column family. In this case,<a name="line.234"></a>
-<span class="sourceLineNo">235</span>   * {@link #maxFlushedSeqId} will be older than the oldest edit in memory.<a name="line.235"></a>
-<span class="sourceLineNo">236</span>   */<a name="line.236"></a>
-<span class="sourceLineNo">237</span>  private volatile long lastFlushOpSeqId = HConstants.NO_SEQNUM;<a name="line.237"></a>
-<span class="sourceLineNo">238</span><a name="line.238"></a>
-<span class="sourceLineNo">239</span>  /**<a name="line.239"></a>
-<span class="sourceLineNo">240</span>   * The sequence id of the last replayed open region event from the primary region. This is used<a name="line.240"></a>
-<span class="sourceLineNo">241</span>   * to skip entries before this due to the possibility of replay edits coming out of order from<a name="line.241"></a>
-<span class="sourceLineNo">242</span>   * replication.<a name="line.242"></a>
-<span class="sourceLineNo">243</span>   */<a name="line.243"></a>
-<span class="sourceLineNo">244</span>  protected volatile long lastReplayedOpenRegionSeqId = -1L;<a name="line.244"></a>
-<span class="sourceLineNo">245</span>  protected volatile long lastReplayedCompactionSeqId = -1L;<a name="line.245"></a>
-<span class="sourceLineNo">246</span><a name="line.246"></a>
-<span class="sourceLineNo">247</span>  //////////////////////////////////////////////////////////////////////////////<a name="line.247"></a>
-<span class="sourceLineNo">248</span>  // Members<a name="line.248"></a>
-<span class="sourceLineNo">249</span>  //////////////////////////////////////////////////////////////////////////////<a name="line.249"></a>
-<span class="sourceLineNo">250</span><a name="line.250"></a>
-<span class="sourceLineNo">251</span>  // map from a locked row to the context for that lock including:<a name="line.251"></a>
-<span class="sourceLineNo">252</span>  // - CountDownLatch for threads waiting on that row<a name="line.252"></a>
-<span class="sourceLineNo">253</span>  // - the thread that owns the lock (allow reentrancy)<a name="line.253"></a>
-<span class="sourceLineNo">254</span>  // - reference count of (reentrant) locks held by the thread<a name="line.254"></a>
-<span class="sourceLineNo">255</span>  // - the row itself<a name="line.255"></a>
-<span class="sourceLineNo">256</span>  private final ConcurrentHashMap&lt;HashedBytes, RowLockContext&gt; lockedRows =<a name="line.256"></a>
-<span class="sourceLineNo">257</span>      new ConcurrentHashMap&lt;&gt;();<a name="line.257"></a>
-<span class="sourceLineNo">258</span><a name="line.258"></a>
-<span class="sourceLineNo">259</span>  protected final Map&lt;byte[], HStore&gt; stores =<a name="line.259"></a>
-<span class="sourceLineNo">260</span>      new ConcurrentSkipListMap&lt;&gt;(Bytes.BYTES_RAWCOMPARATOR);<a name="line.260"></a>
-<span class="sourceLineNo">261</span><a name="line.261"></a>
-<span class="sourceLineNo">262</span>  // TODO: account for each registered handler in HeapSize computation<a name="line.262"></a>
-<span class="sourceLineNo">263</span>  private Map&lt;String, com.google.protobuf.Service&gt; coprocessorServiceHandlers = Maps.newHashMap();<a name="line.263"></a>
-<span class="sourceLineNo">264</span><a name="line.264"></a>
-<span class="sourceLineNo">265</span>  private final AtomicLong memstoreDataSize = new AtomicLong(0);// Track data size in all memstores<a name="line.265"></a>
-<span class="sourceLineNo">266</span>  private final RegionServicesForStores regionServicesForStores = new RegionServicesForStores(this);<a name="line.266"></a>
-<span class="sourceLineNo">267</span><a name="line.267"></a>
-<span class="sourceLineNo">268</span>  // Debug possible data loss due to WAL off<a name="line.268"></a>
-<span class="sourceLineNo">269</span>  final LongAdder numMutationsWithoutWAL = new LongAdder();<a name="line.269"></a>
-<span class="sourceLineNo">270</span>  final LongAdder dataInMemoryWithoutWAL = new LongAdder();<a name="line.270"></a>
-<span class="sourceLineNo">271</span><a name="line.271"></a>
-<span class="sourceLineNo">272</span>  // Debug why CAS operations are taking a while.<a name="line.272"></a>
-<span class="sourceLineNo">273</span>  final LongAdder checkAndMutateChecksPassed = new LongAdder();<a name="line.273"></a>
-<span class="sourceLineNo">274</span>  final LongAdder checkAndMutateChecksFailed = new LongAdder();<a name="line.274"></a>
-<span class="sourceLineNo">275</span><a name="line.275"></a>
-<span class="sourceLineNo">276</span>  // Number of requests<a name="line.276"></a>
-<span class="sourceLineNo">277</span>  final LongAdder readRequestsCount = new LongAdder();<a name="line.277"></a>
-<span class="sourceLineNo">278</span>  final LongAdder filteredReadRequestsCount = new LongAdder();<a name="line.278"></a>
-<span class="sourceLineNo">279</span>  final LongAdder writeRequestsCount = new LongAdder();<a name="line.279"></a>
+<span class="sourceLineNo">105</span>import org.apache.hadoop.hbase.client.CompactionState;<a name="line.105"></a>
+<span class="sourceLineNo">106</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.106"></a>
+<span class="sourceLineNo">107</span>import org.apache.hadoop.hbase.client.Durability;<a name="line.107"></a>
+<span class="sourceLineNo">108</span>import org.apache.hadoop.hbase.client.Get;<a name="line.108"></a>
+<span class="sourceLineNo">109</span>import org.apache.hadoop.hbase.client.Increment;<a name="line.109"></a>
+<span class="sourceLineNo">110</span>import org.apache.hadoop.hbase.client.IsolationLevel;<a name="line.110"></a>
+<span class="sourceLineNo">111</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.111"></a>
+<span class="sourceLineNo">112</span>import org.apache.hadoop.hbase.client.PackagePrivateFieldAccessor;<a name="line.112"></a>
+<span class="sourceLineNo">113</span>import org.apache.hadoop.hbase.client.Put;<a name="line.113"></a>
+<span class="sourceLineNo">114</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.114"></a>
+<span class="sourceLineNo">115</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.115"></a>
+<span class="sourceLineNo">116</span>import org.apache.hadoop.hbase.client.Result;<a name="line.116"></a>
+<span class="sourceLineNo">117</span>import org.apache.hadoop.hbase.client.RowMutations;<a name="line.117"></a>
+<span class="sourceLineNo">118</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.118"></a>
+<span class="sourceLineNo">119</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.119"></a>
+<span class="sourceLineNo">120</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.120"></a>
+<span class="sourceLineNo">121</span>import org.apache.hadoop.hbase.conf.ConfigurationManager;<a name="line.121"></a>
+<span class="sourceLineNo">122</span>import org.apache.hadoop.hbase.conf.PropagatingConfigurationObserver;<a name="line.122"></a>
+<span class="sourceLineNo">123</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver.MutationType;<a name="line.123"></a>
+<span class="sourceLineNo">124</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionSnare;<a name="line.124"></a>
+<span class="sourceLineNo">125</span>import org.apache.hadoop.hbase.exceptions.FailedSanityCheckException;<a name="line.125"></a>
+<span class="sourceLineNo">126</span>import org.apache.hadoop.hbase.exceptions.RegionInRecoveryException;<a name="line.126"></a>
+<span class="sourceLineNo">127</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>import org.apache.hadoop.hbase.exceptions.UnknownProtocolException;<a name="line.128"></a>
+<span class="sourceLineNo">129</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.129"></a>
+<span class="sourceLineNo">130</span>import org.apache.hadoop.hbase.filter.FilterWrapper;<a name="line.130"></a>
+<span class="sourceLineNo">131</span>import org.apache.hadoop.hbase.filter.IncompatibleFilterException;<a name="line.131"></a>
+<span class="sourceLineNo">132</span>import org.apache.hadoop.hbase.io.HFileLink;<a name="line.132"></a>
+<span class="sourceLineNo">133</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.133"></a>
+<span class="sourceLineNo">134</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.134"></a>
+<span class="sourceLineNo">135</span>import org.apache.hadoop.hbase.io.hfile.HFile;<a name="line.135"></a>
+<span class="sourceLineNo">136</span>import org.apache.hadoop.hbase.ipc.CallerDisconnectedException;<a name="line.136"></a>
+<span class="sourceLineNo">137</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils;<a name="line.137"></a>
+<span class="sourceLineNo">138</span>import org.apache.hadoop.hbase.ipc.RpcCall;<a name="line.138"></a>
+<span class="sourceLineNo">139</span>import org.apache.hadoop.hbase.ipc.RpcServer;<a name="line.139"></a>
+<span class="sourceLineNo">140</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.140"></a>
+<span class="sourceLineNo">141</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.141"></a>
+<span class="sourceLineNo">142</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl.WriteEntry;<a name="line.142"></a>
+<span class="sourceLineNo">143</span>import org.apache.hadoop.hbase.regionserver.ScannerContext.LimitScope;<a name="line.143"></a>
+<span class="sourceLineNo">144</span>import org.apache.hadoop.hbase.regionserver.ScannerContext.NextState;<a name="line.144"></a>
+<span class="sourceLineNo">145</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionContext;<a name="line.145"></a>
+<span class="sourceLineNo">146</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.146"></a>
+<span class="sourceLineNo">147</span>import org.apache.hadoop.hbase.regionserver.throttle.CompactionThroughputControllerFactory;<a name="line.147"></a>
+<span class="sourceLineNo">148</span>import org.apache.hadoop.hbase.regionserver.throttle.NoLimitThroughputController;<a name="line.148"></a>
+<span class="sourceLineNo">149</span>import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.150"></a>
+<span class="sourceLineNo">151</span>import org.apache.hadoop.hbase.security.User;<a name="line.151"></a>
+<span class="sourceLineNo">152</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.152"></a>
+<span class="sourceLineNo">153</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.153"></a>
+<span class="sourceLineNo">154</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.154"></a>
+<span class="sourceLineNo">155</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.155"></a>
+<span class="sourceLineNo">156</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.156"></a>
+<span class="sourceLineNo">157</span>import org.apache.hadoop.hbase.util.CollectionUtils;<a name="line.157"></a>
+<span class="sourceLineNo">158</span>import org.apache.hadoop.hbase.util.CompressionTest;<a name="line.158"></a>
+<span class="sourceLineNo">159</span>import org.apache.hadoop.hbase.util.EncryptionTest;<a name="line.159"></a>
+<span class="sourceLineNo">160</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.160"></a>
+<span class="sourceLineNo">161</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.161"></a>
+<span class="sourceLineNo">162</span>import org.apache.hadoop.hbase.util.HashedBytes;<a name="line.162"></a>
+<span class="sourceLineNo">163</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil;<a name="line.164"></a>
+<span class="sourceLineNo">165</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.165"></a>
+<span class="sourceLineNo">166</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.166"></a>
+<span class="sourceLineNo">167</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.167"></a>
+<span class="sourceLineNo">168</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.168"></a>
+<span class="sourceLineNo">169</span>import org.apache.hadoop.hbase.wal.WALKey;<a name="line.169"></a>
+<span class="sourceLineNo">170</span>import org.apache.hadoop.hbase.wal.WALSplitter;<a name="line.170"></a>
+<span class="sourceLineNo">171</span>import org.apache.hadoop.hbase.wal.WALSplitter.MutationReplay;<a name="line.171"></a>
+<span class="sourceLineNo">172</span>import org.apache.hadoop.io.MultipleIOException;<a name="line.172"></a>
+<span class="sourceLineNo">173</span>import org.apache.hadoop.util.StringUtils;<a name="line.173"></a>
+<span class="sourceLineNo">174</span>import org.apache.htrace.Trace;<a name="line.174"></a>
+<span class="sourceLineNo">175</span>import org.apache.htrace.TraceScope;<a name="line.175"></a>
+<span class="sourceLineNo">176</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.176"></a>
+<span class="sourceLineNo">177</span><a name="line.177"></a>
+<span class="sourceLineNo">178</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.178"></a>
+<span class="sourceLineNo">179</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Preconditions;<a name="line.179"></a>
+<span class="sourceLineNo">180</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;<a name="line.180"></a>
+<span class="sourceLineNo">181</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Maps;<a name="line.181"></a>
+<span class="sourceLineNo">182</span>import org.apache.hadoop.hbase.shaded.com.google.common.io.Closeables;<a name="line.182"></a>
+<span class="sourceLineNo">183</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.Service;<a name="line.183"></a>
+<span class="sourceLineNo">184</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.TextFormat;<a name="line.184"></a>
+<span class="sourceLineNo">185</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.UnsafeByteOperations;<a name="line.185"></a>
+<span class="sourceLineNo">186</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.186"></a>
+<span class="sourceLineNo">187</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;<a name="line.187"></a>
+<span class="sourceLineNo">188</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceCall;<a name="line.188"></a>
+<span class="sourceLineNo">189</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionLoad;<a name="line.189"></a>
+<span class="sourceLineNo">190</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.StoreSequenceId;<a name="line.190"></a>
+<span class="sourceLineNo">191</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.191"></a>
+<span class="sourceLineNo">192</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos;<a name="line.192"></a>
+<span class="sourceLineNo">193</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor;<a name="line.193"></a>
+<span class="sourceLineNo">194</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor;<a name="line.194"></a>
+<span class="sourceLineNo">195</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor.FlushAction;<a name="line.195"></a>
+<span class="sourceLineNo">196</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor.StoreFlushDescriptor;<a name="line.196"></a>
+<span class="sourceLineNo">197</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor;<a name="line.197"></a>
+<span class="sourceLineNo">198</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor.EventType;<a name="line.198"></a>
+<span class="sourceLineNo">199</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.StoreDescriptor;<a name="line.199"></a>
+<span class="sourceLineNo">200</span><a name="line.200"></a>
+<span class="sourceLineNo">201</span>/**<a name="line.201"></a>
+<span class="sourceLineNo">202</span> * Regions store data for a certain region of a table.  It stores all columns<a name="line.202"></a>
+<span class="sourceLineNo">203</span> * for each row. A given table consists of one or more Regions.<a name="line.203"></a>
+<span class="sourceLineNo">204</span> *<a name="line.204"></a>
+<span class="sourceLineNo">205</span> * &lt;p&gt;An Region is defined by its table and its key extent.<a name="line.205"></a>
+<span class="sourceLineNo">206</span> *<a name="line.206"></a>
+<span class="sourceLineNo">207</span> * &lt;p&gt;Locking at the Region level serves only one purpose: preventing the<a name="line.207"></a>
+<span class="sourceLineNo">208</span> * region from being closed (and consequently split) while other operations<a name="line.208"></a>
+<span class="sourceLineNo">209</span> * are ongoing. Each row level operation obtains both a row lock and a region<a name="line.209"></a>
+<span class="sourceLineNo">210</span> * read lock for the duration of the operation. While a scanner is being<a name="line.210"></a>
+<span class="sourceLineNo">211</span> * constructed, getScanner holds a read lock. If the scanner is successfully<a name="line.211"></a>
+<span class="sourceLineNo">212</span> * constructed, it holds a read lock until it is closed. A close takes out a<a name="line.212"></a>
+<span class="sourceLineNo">213</span> * write lock and consequently will block for ongoing operations and will block<a name="line.213"></a>
+<span class="sourceLineNo">214</span> * new operations from starting while the close is in progress.<a name="line.214"></a>
+<span class="sourceLineNo">215</span> */<a name="line.215"></a>
+<span class="sourceLineNo">216</span>@SuppressWarnings("deprecation")<a name="line.216"></a>
+<span class="sourceLineNo">217</span>@InterfaceAudience.Private<a name="line.217"></a>
+<span class="sourceLineNo">218</span>public class HRegion implements HeapSize, PropagatingConfigurationObserver, Region {<a name="line.218"></a>
+<span class="sourceLineNo">219</span>  private static final Log LOG = LogFactory.getLog(HRegion.class);<a name="line.219"></a>
+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span>  public static final String LOAD_CFS_ON_DEMAND_CONFIG_KEY =<a name="line.221"></a>
+<span class="sourceLineNo">222</span>    "hbase.hregion.scan.loadColumnFamiliesOnDemand";<a name="line.222"></a>
+<span class="sourceLineNo">223</span><a name="line.223"></a>
+<span class="sourceLineNo">224</span>  public static final String HBASE_MAX_CELL_SIZE_KEY = "hbase.server.keyvalue.maxsize";<a name="line.224"></a>
+<span class="sourceLineNo">225</span>  public static final int DEFAULT_MAX_CELL_SIZE = 10485760;<a name="line.225"></a>
+<span class="sourceLineNo">226</span><a name="line.226"></a>
+<span class="sourceLineNo">227</span>  /**<a name="line.227"></a>
+<span class="sourceLineNo">228</span>   * This is the global default value for durability. All tables/mutations not<a name="line.228"></a>
+<span class="sourceLineNo">229</span>   * defining a durability or using USE_DEFAULT will default to this value.<a name="line.229"></a>
+<span class="sourceLineNo">230</span>   */<a name="line.230"></a>
+<span class="sourceLineNo">231</span>  private static final Durability DEFAULT_DURABILITY = Durability.SYNC_WAL;<a name="line.231"></a>
+<span class="sourceLineNo">232</span><a name="line.232"></a>
+<span class="sourceLineNo">233</span>  final AtomicBoolean closed = new AtomicBoolean(false);<a name="line.233"></a>
+<span class="sourceLineNo">234</span><a name="line.234"></a>
+<span class="sourceLineNo">235</span>  /* Closing can take some time; use the closing flag if there is stuff we don't<a name="line.235"></a>
+<span class="sourceLineNo">236</span>   * want to do while in closing state; e.g. like offer this region up to the<a name="line.236"></a>
+<span class="sourceLineNo">237</span>   * master as a region to close if the carrying regionserver is overloaded.<a name="line.237"></a>
+<span class="sourceLineNo">238</span>   * Once set, it is never cleared.<a name="line.238"></a>
+<span class="sourceLineNo">239</span>   */<a name="line.239"></a>
+<span class="sourceLineNo">240</span>  final AtomicBoolean closing = new AtomicBoolean(false);<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
+<span class="sourceLineNo">242</span>  /**<a name="line.242"></a>
+<span class="sourceLineNo">243</span>   * The max sequence id of flushed data on this region. There is no edit in memory that is<a name="line.243"></a>
+<span class="sourceLineNo">244</span>   * less that this sequence id.<a name="line.244"></a>
+<span class="sourceLineNo">245</span>   */<a name="line.245"></a>
+<span class="sourceLineNo">246</span>  private volatile long maxFlushedSeqId = HConstants.NO_SEQNUM;<a name="line.246"></a>
+<span class="sourceLineNo">247</span><a name="line.247"></a>
+<span class="sourceLineNo">248</span>  /**<a name="line.248"></a>
+<span class="sourceLineNo">249</span>   * Record the sequence id of last flush operation. Can be in advance of<a name="line.249"></a>
+<span class="sourceLineNo">250</span>   * {@link #maxFlushedSeqId} when flushing a single column family. In this case,<a name="line.250"></a>
+<span class="sourceLineNo">251</span>   * {@link #maxFlushedSeqId} will be older than the oldest edit in memory.<a name="line.251"></a>
+<span class="sourceLineNo">252</span>   */<a name="line.252"></a>
+<span class="sourceLineNo">253</span>  private volatile long lastFlushOpSeqId = HConstants.NO_SEQNUM;<a name="line.253"></a>
+<span class="sourceLineNo">254</span><a name="line.254"></a>
+<span class="sourceLineNo">255</span>  /**<a name="line.255"></a>
+<span class="sourceLineNo">256</span>   * The sequence id of the last replayed open region event from the primary region. This is used<a name="line.256"></a>
+<span class="sourceLineNo">257</span>   * to skip entries before this due to the possibility of replay edits coming out of order from<a name="line.257"></a>
+<span class="sourceLineNo">258</span>   * replication.<a name="line.258"></a>
+<span class="sourceLineNo">259</span>   */<a name="line.259"></a>
+<span class="sourceLineNo">260</span>  protected volatile long lastReplayedOpenRegionSeqId = -1L;<a name="line.260"></a>
+<span class="sourceLineNo">261</span>  protected volatile long lastReplayedCompactionSeqId = -1L;<a name="line.261"></a>
+<span class="sourceLineNo">262</span><a name="line.262"></a>
+<span class="sourceLineNo">263</span>  //////////////////////////////////////////////////////////////////////////////<a name="line.263"></a>
+<span class="sourceLineNo">264</span>  // Members<a name="line.264"></a>
+<span class="sourceLineNo">265</span>  //////////////////////////////////////////////////////////////////////////////<a name="line.265"></a>
+<span class="sourceLineNo">266</span><a name="line.266"></a>
+<span class="sourceLineNo">267</span>  // map from a locked row to the context for that lock including:<a name="line.267"></a>
+<span class="sourceLineNo">268</span>  // - CountDownLatch for threads waiting on that row<a name="line.268"></a>
+<span class="sourceLineNo">269</span>  // - the thread that owns the lock (allow reentrancy)<a name="line.269"></a>
+<span class="sourceLineNo">270</span>  // - reference count of (reentrant) locks held by the thread<a name="line.270"></a>
+<span class="sourceLineNo">271</span>  // - the row itself<a name="line.271"></a>
+<span class="sourceLineNo">272</span>  private final ConcurrentHashMap&lt;HashedBytes, RowLockContext&gt; lockedRows =<a name="line.272"></a>
+<span class="sourceLineNo">273</span>      new ConcurrentHashMap&lt;&gt;();<a name="line.273"></a>
+<span class="sourceLineNo">274</span><a name="line.274"></a>
+<span class="sourceLineNo">275</span>  protected final Map&lt;byte[], HStore&gt; stores =<a name="line.275"></a>
+<span class="sourceLineNo">276</span>      new ConcurrentSkipListMap&lt;&gt;(Bytes.BYTES_RAWCOMPARATOR);<a name="line.276"></a>
+<span class="sourceLineNo">277</span><a name="line.277"></a>
+<span class="sourceLineNo">278</span>  // TODO: account for each registered handler in HeapSize computation<a name="line.278"></a>
+<span class="sourceLineNo">279</span>  private Map&lt;String, com.google.protobuf.Service&gt; coprocessorServiceHandlers = Maps.newHashMap();<a name="line.279"></a>
 <span class="sourceLineNo">280</span><a name="line.280"></a>
-<span class="sourceLineNo">281</span>  // Number of requests blocked by memstore size.<a name="line.281"></a>
-<span class="sourceLineNo">282</span>  private final LongAdder blockedRequestsCount = new LongAdder();<a name="line.282"></a>
+<span class="sourceLineNo">281</span>  private final AtomicLong memstoreDataSize = new AtomicLong(0);// Track data size in all memstores<a name="line.281"></a>
+<span class="sourceLineNo">282</span>  private final RegionServicesForStores regionServicesForStores = new RegionServicesForStores(this);<a name="line.282"></a>
 <span class="sourceLineNo">283</span><a name="line.283"></a>
-<span class="sourceLineNo">284</span>  // Compaction LongAdders<a name="line.284"></a>
-<span class="sourceLineNo">285</span>  final LongAdder compactionsFinished = new LongAdder();<a name="line.285"></a>
-<span class="sourceLineNo">286</span>  final LongAdder compactionsFailed = new LongAdder();<a name="line.286"></a>
-<span class="sourceLineNo">287</span>  final LongAdder compactionNumFilesCompacted = new LongAdder();<a name="line.287"></a>
-<span class="sourceLineNo">288</span>  final LongAdder compactionNumBytesCompacted = new LongAdder();<a name="line.288"></a>
-<span class="sourceLineNo">289</span>  final LongAdder compactionsQueued = new LongAdder();<a name="line.289"></a>
-<span class="sourceLineNo">290</span>  final LongAdder flushesQueued = new LongAdder();<a name="line.290"></a>
+<span class="sourceLineNo">284</span>  // Debug possible data loss due to WAL off<a name="line.284"></a>
+<span class="sourceLineNo">285</span>  final LongAdder numMutationsWithoutWAL = new LongAdder();<a name="line.285"></a>
+<span class="sourceLineNo">286</span>  final LongAdder dataInMemoryWithoutWAL = new LongAdder();<a name="line.286"></a>
+<span class="sourceLineNo">287</span><a name="line.287"></a>
+<span class="sourceLineNo">288</span>  // Debug why CAS operations are taking a while.<a name="line.288"></a>
+<span class="sourceLineNo">289</span>  final LongAdder checkAndMutateChecksPassed = new LongAdder();<a name="line.289"></a>
+<span class="sourceLineNo">290</span>  final LongAdder checkAndMutateChecksFailed = new LongAdder();<a name="line.290"></a>
 <span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span>  private final WAL wal;<a name="line.292"></a>
-<span class="sourceLineNo">293</span>  private final HRegionFileSystem fs;<a name="line.293"></a>
-<span class="sourceLineNo">294</span>  protected final Configuration conf;<a name="line.294"></a>
-<span class="sourceLineNo">295</span>  private final Configuration baseConf;<a name="line.295"></a>
-<span class="sourceLineNo">296</span>  private final int rowLockWaitDuration;<a name="line.296"></a>
-<span class="sourceLineNo">297</span>  static final int DEFAULT_ROWLOCK_WAIT_DURATION = 30000;<a name="line.297"></a>
-<span class="sourceLineNo">298</span><a name="line.298"></a>
-<span class="sourceLineNo">299</span>  // The internal wait duration to acquire a lock before read/update<a name="line.299"></a>
-<span class="sourceLineNo">300</span>  // from the region. It is not per row. The purpose of this wait time<a name="line.300"></a>
-<span class="sourceLineNo">301</span>  // is to avoid waiting a long time while the region is busy, so that<a name="line.301"></a>
-<span class="sourceLineNo">302</span>  // we can release the IPC handler soon enough to improve the<a name="line.302"></a>
-<span class="sourceLineNo">303</span>  // availability of the region server. It can be adjusted by<a name="line.303"></a>
-<span class="sourceLineNo">304</span>  // tuning configuration "hbase.busy.wait.duration".<a name="line.304"></a>
-<span class="sourceLineNo">305</span>  final long busyWaitDuration;<a name="line.305"></a>
-<span class="sourceLineNo">306</span>  static final long DEFAULT_BUSY_WAIT_DURATION = HConstants.DEFAULT_HBASE_RPC_TIMEOUT;<a name="line.306"></a>
+<span class="sourceLineNo">292</span>  // Number of requests<a name="line.292"></a>
+<span class="sourceLineNo">293</span>  final LongAdder readRequestsCount = new LongAdder();<a name="line.293"></a>
+<span class="sourceLineNo">294</span>  final LongAdder filteredReadRequestsCount = new LongAdder();<a name="line.294"></a>
+<span class="sourceLineNo">295</span>  final LongAdder writeRequestsCount = new LongAdder();<a name="line.295"></a>
+<span class="sourceLineNo">296</span><a name="line.296"></a>
+<span class="sourceLineNo">297</span>  // Number of requests blocked by memstore size.<a name="line.297"></a>
+<span class="sourceLineNo">298</span>  private final LongAdder blockedRequestsCount = new LongAdder();<a name="line.298"></a>
+<span class="sourceLineNo">299</span><a name="line.299"></a>
+<span class="sourceLineNo">300</span>  // Compaction LongAdders<a name="line.300"></a>
+<span class="sourceLineNo">301</span>  final LongAdder compactionsFinished = new LongAdder();<a name="line.301"></a>
+<span class="sourceLineNo">302</span>  final LongAdder compactionsFailed = new LongAdder();<a name="line.302"></a>
+<span class="sourceLineNo">303</span>  final LongAdder compactionNumFilesCompacted = new LongAdder();<a name="line.303"></a>
+<span class="sourceLineNo">304</span>  final LongAdder compactionNumBytesCompacted = new LongAdder();<a name="line.304"></a>
+<span class="sourceLineNo">305</span>  final LongAdder compactionsQueued = new LongAdder();<a name="line.305"></a>
+<span class="sourceLineNo">306</span>  final LongAdder flushesQueued = new LongAdder();<a name="line.306"></a>
 <span class="sourceLineNo">307</span><a name="line.307"></a>
-<span class="sourceLineNo">308</span>  // If updating multiple rows in one call, wait longer,<a name="line.308"></a>
-<span class="sourceLineNo">309</span>  // i.e. waiting for busyWaitDuration * # of rows. However,<a name="line.309"></a>
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-<span class="sourceLineNo">434</span>   * be specified if the flush was successful, and the failure message should only be specified<a name="line.434"></a>
-<span class="sourceLineNo">435</span>   * if it didn't flush.<a name="line.435"></a>
-<span class="sourceLineNo">436</span>   */<a name="line.436"></a>
-<span class="sourceLineNo">437</span>  public static class FlushResultImpl implements FlushResult {<a name="line.437"></a>
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-<span class="sourceLineNo">441</span>    final boolean wroteFlushWalMarker;<a name="line.441"></a>
+<span class="sourceLineNo">431</span>    boolean isReadOnly() {<a name="line.431"></a>
+<span class="sourceLineNo">432</span>      return this.readOnly;<a name="line.432"></a>
+<span class="sourceLineNo">433</span>    }<a name="line.433"></a>
+<span class="sourceLineNo">434</span><a name="line.434"></a>
+<span class="sourceLineNo">435</span>    boolean isFlushRequested() {<a name="line.435"></a>
+<span class="sourceLineNo">436</span>      return this.flushRequested;<a name="line.436"></a>
+<span class="sourceLineNo">437</span>    }<a name="line.437"></a>
+<span class="sourceLineNo">438</span><a name="line.438"></a>
+<span class="sourceLineNo">439</span>    void setReadsEnabled(boolean readsEnabled) {<a name="line.439"></a>
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+<span class="sourceLineNo">441</span>    }<a name="line.441"></a>
 <span class="sourceLineNo">442</span><a name="line.442"></a>
-<span class="sourceLineNo">443</span>    /**<a name="line.443"></a>
-<span class="sourceLineNo">444</span>     * Convenience constructor to use when the flush is successful, the failure message is set to<a name="line.444"></a>
-<span class="sourceLineNo">445</span>     * null.<a name="line.445"></a>
-<span class="sourceLineNo">446</span>     * @param result Expecting FLUSHED_NO_COMPACTION_NEEDED or FLUSHED_COMPACTION_NEEDED.<a name="line.446"></a>
-<span class="sourceLineNo">447</span>     * @param flushSequenceId Generated sequence id that comes right after the edits in the<a name="line.447"></a>
-<span class="sourceLineNo">448</span>     *                        memstores.<a name="line.448"></a>
-<span class="sourceLineNo">449</span>     */<a name="line.449"></a>
-<span class="sourceLineNo">450</span>    FlushResultImpl(Result result, long flushSequenceId) {<a name="line.450"></a>
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-<span class="sourceLineNo">453</span>          .FLUSHED_COMPACTION_NEEDED;<a name="line.453"></a>
-<span class="sourceLineNo">454</span>    }<a name="line.454"></a>
-<span class="sourceLineNo">455</span><a name="line.455"></a>
-<span class="sourceLineNo">456</span>    /**<a name="line.456"></a>
-<span class="sourceLineNo">457</span>     * Convenience constructor to use when we cannot flush.<a name="line.457"></a>
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-<span class="sourceLineNo">459</span>     * @param failureReason Reason why we couldn't flush.<a name="line.459"></a>
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-<span class="sourceLineNo">461</span>    FlushResultImpl(Result result, String failureReason, boolean wroteFlushMarker) {<a name="line.461"></a>
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-<span class="sourceLineNo">464</span>    }<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>     * Constructor with all the parameters.<a name="line.467"></a>
-<span class="sourceLineNo">468</span>     * @param result Any of the Result.<a name="line.468"></a>
-<span class="sourceLineNo">469</span>     * @param flushSequenceId Generated sequence id if the memstores were flushed else -1.<a name="line.469"></a>
-<span class="sourceLineNo">470</span>     * @param failureReason Reason why we couldn't flush, or null.<a name="line.470"></a>
-<span class="sourceLineNo">471</span>     */<a name="line.471"></a>
-<span class="sourceLineNo">472</span>    FlushResultImpl(Result result, long flushSequenceId, String failureReason,<a name="line.472"></a>
-<span class="sourceLineNo">473</span>      boolean wroteFlushMarker) {<a name="line.473"></a>
-<span class="sourceLineNo">474</span>      this.result = result;<a name="line.474"></a>
-<span class="sourceLineNo">475</span>      this.flushSequenceId = flushSequenceId;<a name="line.475"></a>
-<span class="sourceLineNo">476</span>      this.failureReason = failureReason;<a name="line.476"></a>
-<span class="sourceLineNo">477</span>      this.wroteFlushWalMarker = wroteFlushMarker;<a name="line.477"></a>
-<span class="sourceLineNo">478</span>    }<a name="line.478"></a>
-<span class="sourceLineNo">479</span><a name="line.479"></a>
-<span class="sourceLineNo">480</span>    /**<a name="line.480"></a>
-<span class="sourceLineNo">481</span>     * Convenience method, the equivalent of checking if result is<a name="line.481"></a>
-<span class="sourceLineNo">482</span>     * FLUSHED_NO_COMPACTION_NEEDED or FLUSHED_NO_COMPACTION_NEEDED.<a name="line.482"></a>
-<span class="sourceLineNo">483</span>     * @return true if the memstores were flushed, else false.<a name="line.483"></a>
-<span class="sourceLineNo">484</span>     */<a name="line.484"></a>
-<span class="sourceLineNo">485</span>    @Override<a name="line.485"></a>
-<span class="sourceLineNo">486</span>    public boolean isFlushSucceeded() {<a name="line.486"></a>
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-<span class="sourceLineNo">488</span>          .FLUSHED_COMPACTION_NEEDED;<a name="line.488"></a>
-<span class="sourceLineNo">489</span>    }<a name="line.489"></a>
-<span class="sourceLineNo">490</span><a name="line.490"></a>
-<span class="sourceLineNo">491</span>    /**<a name="line.491"></a>
-<span class="sourceLineNo">492</span>     * Convenience method, the equivalent of checking if result is FLUSHED_COMPACTION_NEEDED.<a name="line.492"></a>
-<span class="sourceLineNo">493</span>     * @return True if the flush requested a compaction, else false (doesn't even mean it flushed).<a name="line.493"></a>
-<span class="sourceLineNo">494</span>     */<a name="line.494"></a>
-<span class="sourceLineNo">495</span>    @Override<a name="line.495"></a>
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-<span class="sourceLineNo">497</span>      return result == Result.FLUSHED_COMPACTION_NEEDED;<a name="line.497"></a>
-<span class="sourceLineNo">498</span>    }<a name="line.498"></a>
-<span class="sourceLineNo">499</span><a name="line.499"></a>
-<span class="sourceLineNo">500</span>    @Override<a name="line.500"></a>
-<span class="sourceLineNo">501</span>    public String toString() {<a name="line.501"></a>
-<span class="sourceLineNo">502</span>      return new StringBuilder()<a name="line.502"></a>
-<span class="sourceLineNo">503</span>        .append("flush result:").append(result).append(", ")<a name="line.503"></a>
-<span class="sourceLineNo">504</span>        .append("failureReason:").append(failureReason).append(",")<a name="line.504"></a>
-<span class="sourceLineNo">505</span>        .append("flush seq id").append(flushSequenceId).toString();<a name="line.505"></a>
-<span class="sourceLineNo">506</span>    }<a name="line.506"></a>
-<span class="sourceLineNo">507</span><a name="line.507"></a>
-<span class="sourceLineNo">508</span>    @Override<a name="line.508"></a>
-<span class="sourceLineNo">509</span>    public Result getResult() {<a name="line.509"></a>
-<span class="sourceLineNo">510</span>      return result;<a name="line.510"></a>
-<span class="sourceLineNo">511</span>    }<a name="line.511"></a>
-<span class="sourceLineNo">512</span>  }<a name="line.512"></a>
-<span class="sourceLineNo">513</span><a name="line.513"></a>
-<span class="sourceLineNo">514</span>  /** A result object from prepare flush cache stage */<a name="line.514"></a>
-<span class="sourceLineNo">515</span>  @VisibleForTesting<a name="line.515"></a>
-<span class="sourceLineNo">516</span>  static class PrepareFlushResult {<a name="line.516"></a>
-<span class="sourceLineNo">517</span>    final FlushResultImpl result; // indicating a failure result from prepare<a name="line.517"></a>
-<span class="sourceLineNo">518</span>    final TreeMap&lt;byte[], StoreFlushContext&gt; storeFlushCtxs;<a name="line.518"></a>
-<span class="sourceLineNo">519</span>    final TreeMap&lt;byte[], List&lt;Path&gt;&gt; committedFiles;<a name="line.519"></a>
-<span class="sourceLineNo">520</span>    final TreeMap&lt;byte[], MemStoreSize&gt; storeFlushableSize;<a name="line.520"></a>
-<span class="sourceLineNo">521</span>    final long startTime;<a name="line.521"></a>
-<span class="sourceLineNo">522</span>    final long flushOpSeqId;<a name="line.522"></a>
-<span class="sourceLineNo">523</span>    final long flushedSeqId;<a name="line.523"></a>
-<span class="sourceLineNo">524</span>    final MemStoreSize totalFlushableSize;<a name="line.524"></a>
-<span class="sourceLineNo">525</span><a name="line.525"></a>
-<span class="sourceLineNo">526</span>    /** Constructs an early exit case */<a name="line.526"></a>
-<span class="sourceLineNo">527</span>    PrepareFlushResult(FlushResultImpl result, long flushSeqId) {<a name="line.527"></a>
-<span class="sourceLineNo">528</span>      this(result, null, null, null, Math.max(0, flushSeqId), 0, 0, new MemStoreSize());<a name="line.528"></a>
-<span class="sourceLineNo">529</span>    }<a name="line.529"></a>
-<span class="sourceLineNo">530</span><a name="line.530"></a>
-<span class="sourceLineNo">531</span>    /** Constructs a successful prepare flush result */<a name="line.531"></a>
-<span class="sourceLineNo">532</span>    PrepareFlushResult(<a name="line.532"></a>
-<span class="sourceLineNo">533</span>      TreeMap&lt;byte[], StoreFlushContext&gt; storeFlushCtxs,<a name="line.533"></a>
-<span class="sourceLineNo">534</span>      TreeMap&lt;byte[], List&lt;Path&gt;&gt; committedFiles,<a name="line.534"></a>
-<span class="sourceLineNo">535</span>      TreeMap&lt;byte[], MemStoreSize&gt; storeFlushableSize, long startTime, long flushSeqId,<a name="line.535"></a>
-<span class="sourceLineNo">536</span>      long flushedSeqId, MemStoreSize totalFlushableSize) {<a name="line.536"></a>
-<span class="sourceLineNo">537</span>      this(null, storeFlushCtxs, committedFiles, storeFlushableSize, startTime,<a name="line.537"></a>
-<span class="sourceLineNo">538</span>        flushSeqId, flushedSeqId, totalFlushableSize);<a name="line.538"></a>
-<span class="sourceLineNo">539</span>    }<a name="line.539"></a>
-<span class="sourceLineNo">540</span><a name="line.540"></a>
-<span class="sourceLineNo">541</span>    private PrepareFlushResult(<a name="line.541"></a>
-<span class="sourceLineNo">542</span>        FlushResultImpl result,<a name="line.542"></a>
-<span class="sourceLineNo">543</span>      TreeMap&lt;byte[], StoreFlushContext&gt; storeFlushCtxs,<a name="line.543"></a>
-<span class="sourceLineNo">544</span>      TreeMap&lt;byte[], List&lt;Path&gt;&gt; committedFiles,<a name="line.544"></a>
-<span class="sourceLineNo">545</span>      TreeMap&lt;byte[], MemStoreSize&gt; storeFlushableSize, long startTime, long flushSeqId,<a name="line.545"></a>
-<span class="sourceLineNo">546</span>      long flushedSeqId, MemStoreSize totalFlushableSize) {<a name="line.546"></a>
-<span class="sourceLineNo">547</span>      this.result = result;<a name="line.547"></a>
-<span class="sourceLineNo">548</span>      this.storeFlushCtxs = storeFlushCtxs;<a name="line.548"></a>
-<span class="sourceLineNo">549</span>      this.committedFiles = committedFiles;<a name="line.549"></a>
-<span class="sourceLineNo">550</span>      this.storeFlushableSize = storeFlushableSize;<a name="line.550"></a>
-<span class="sourceLineNo">551</span>      this.startTime = startTime;<a name="line.551"></a>
-<span class="sourceLineNo">552</span>      this.flushOpSeqId = flushSeqId;<a name="line.552"></a>
-<span class="sourceLineNo">553</span>      this.flushedSeqId = flushedSeqId;<a name="line.553"></a>
-<span class="sourceLineNo">554</span>      this.totalFlushableSize = totalFlushableSize;<a name="line.554"></a>
+<span class="sourceLineNo">443</span>    static final long HEAP_SIZE = ClassSize.align(<a name="line.443"></a>
+<span class="sourceLineNo">444</span>        ClassSize.OBJECT + 5 * Bytes.SIZEOF_BOOLEAN);<a name="line.444"></a>
+<span class="sourceLineNo">445</span>  }<a name="line.445"></a>
+<span class="sourceLineNo">446</span><a name="line.446"></a>
+<span class="sourceLineNo">447</span>  /**<a name="line.447"></a>
+<span class="sourceLineNo">448</span>   * Objects from this class are created when flushing to describe all the different states that<a name="line.448"></a>
+<span class="sourceLineNo">449</span>   * that method ends up in. The Result enum describes those states. The sequence id should only<a name="line.449"></a>
+<span class="sourceLineNo">450</span>   * be specified if the flush was successful, and the failure message should only be specified<a name="line.450"></a>
+<span class="sourceLineNo">451</span>   * if it didn't flush.<a name="line.451"></a>
+<span class="sourceLineNo">452</span>   */<a name="line.452"></a>
+<span class="sourceLineNo">453</span>  public static class FlushResultImpl implements FlushResult {<a name="line.453"></a>
+<span class="sourceLineNo">454</span>    final Result result;<a name="line.454"></a>
+<span class="sourceLineNo">455</span>    final String failureReason;<a name="line.455"></a>
+<span class="sourceLineNo">456</span>    final long flushSequenceId;<a name="line.456"></a>
+<span class="sourceLineNo">457</span>    final boolean wroteFlushWalMarker;<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>     * Convenience constructor to use when the flush is successful, the failure message is set to<a name="line.460"></a>
+<span class="sourceLineNo">461</span>     * null.<a name="line.461"></a>
+<span class="sourceLineNo">462</span>     * @param result Expecting FLUSHED_NO_COMPACTION_NEEDED or FLUSHED_COMPACTION_NEEDED.<a name="line.462"></a>
+<span class="sourceLineNo">463</span>     * @param flushSequenceId Generated sequence id that comes right after the edits in the<a name="line.463"></a>
+<span class="sourceLineNo">464</span>     *                        memstores.<a name="line.464"></a>
+<span class="sourceLineNo">465</span>     */<a name="line.465"></a>
+<span class="sourceLineNo">466</span>    FlushResultImpl(Result result, long flushSequenceId) {<a name="line.466"></a>
+<span class="sourceLineNo">467</span>      this(result, flushSequenceId, null, false);<a name="line.467"></a>
+<span class="sourceLineNo">468</span>      assert result == Result.FLUSHED_NO_COMPACTION_NEEDED || result == Result<a name="line.468"></a>
+<span class="sourceLineNo">469</span>          .FLUSHED_COMPACTION_NEEDED;<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>     * Convenience constructor to use when we cannot flush.<a name="line.473"></a>
+<span class="sourceLineNo">474</span>     * @param result Expecting CANNOT_FLUSH_MEMSTORE_EMPTY or CANNOT_FLUSH.<a name="line.474"></a>
+<span class="sourceLineNo">475</span>     * @param failureReason Reason why we couldn't flush.<a name="line.475"></a>
+<span class="sourceLineNo">476</span>     */<a name="line.476"></a>
+<span class="sourceLineNo">477</span>    FlushResultImpl(Result result, String failureReason, boolean wroteFlushMarker) {<a name="line.477"></a>
+<span class="sourceLineNo">478</span>      this(result, -1, failureReason, wroteFlushMarker);<a name="line.478"></a>
+<span class="sourceLineNo">479</span>      assert result == Result.CANNOT_FLUSH_MEMSTORE_EMPTY || result == Result.CANNOT_FLUSH;<a name="line.479"></a>
+<span class="sourceLineNo">480</span>    }<a name="line.480"></a>
+<span class="sourceLineNo">481</span><a name="line.481"></a>
+<span class="sourceLineNo">482</span>    /**<a name="line.482"></a>
+<span class="sourceLineNo">483</span>     * Constructor with all the parameters.<a name="line.483"></a>
+<span class="sourceLineNo">484</span>     * @param result Any of the Result.<a name="line.484"></a>
+<span class="sourceLineNo">485</span>     * @param flushSequenceId Generated sequence id if the memstores were flushed else -1.<a name="line.485"></a>
+<span class="sourceLineNo">486</span>     * @param failureReason Reason why we couldn't flush, or null.<a name="line.486"></a>
+<span class="sourceLineNo">487</span>     */<a name="line.487"></a>
+<span class="sourceLineNo">488</span>    FlushResultImpl(Result result, long flushSequenceId, String failureReason,<a name="line.488"></a>
+<span class="sourceLineNo">489</span>      boolean wroteFlushMarker) {<a name="line.489"></a>
+<span class="sourceLineNo">490</span>      this.result = result;<a name="line.490"></a>
+<span class="sourceLineNo">491</span>      this.flushSequenceId = flushSequenceId;<a name="line.491"></a>
+<span class="sourceLineNo">492</

<TRUNCATED>

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