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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/23 14:47:50 UTC
[22/51] [partial] hbase-site git commit: Published site at
6a5b4f2a5c188f8eef4f2250b8b7db7dd1e750e4.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1ff05a18/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.PrepareFlushResult.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.PrepareFlushResult.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.PrepareFlushResult.html
index db8431b..a8cb7c4 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.PrepareFlushResult.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/HRegion.PrepareFlushResult.html
@@ -885,7766 +885,7797 @@
<span class="sourceLineNo">877</span> * @return What the next sequence (edit) id should be.<a name="line.877"></a>
<span class="sourceLineNo">878</span> * @throws IOException e<a name="line.878"></a>
<span class="sourceLineNo">879</span> */<a name="line.879"></a>
-<span class="sourceLineNo">880</span> private long initialize(final CancelableProgressable reporter) throws IOException {<a name="line.880"></a>
-<span class="sourceLineNo">881</span><a name="line.881"></a>
-<span class="sourceLineNo">882</span> //Refuse to open the region if there is no column family in the table<a name="line.882"></a>
-<span class="sourceLineNo">883</span> if (htableDescriptor.getColumnFamilyCount() == 0) {<a name="line.883"></a>
-<span class="sourceLineNo">884</span> throw new DoNotRetryIOException("Table " + htableDescriptor.getTableName().getNameAsString()+<a name="line.884"></a>
-<span class="sourceLineNo">885</span> " should have at least one column family.");<a name="line.885"></a>
-<span class="sourceLineNo">886</span> }<a name="line.886"></a>
-<span class="sourceLineNo">887</span><a name="line.887"></a>
-<span class="sourceLineNo">888</span> MonitoredTask status = TaskMonitor.get().createStatus("Initializing region " + this);<a name="line.888"></a>
-<span class="sourceLineNo">889</span> long nextSeqId = -1;<a name="line.889"></a>
-<span class="sourceLineNo">890</span> try {<a name="line.890"></a>
-<span class="sourceLineNo">891</span> nextSeqId = initializeRegionInternals(reporter, status);<a name="line.891"></a>
-<span class="sourceLineNo">892</span> return nextSeqId;<a name="line.892"></a>
-<span class="sourceLineNo">893</span> } finally {<a name="line.893"></a>
-<span class="sourceLineNo">894</span> // nextSeqid will be -1 if the initialization fails.<a name="line.894"></a>
-<span class="sourceLineNo">895</span> // At least it will be 0 otherwise.<a name="line.895"></a>
-<span class="sourceLineNo">896</span> if (nextSeqId == -1) {<a name="line.896"></a>
-<span class="sourceLineNo">897</span> status.abort("Exception during region " + getRegionInfo().getRegionNameAsString() +<a name="line.897"></a>
-<span class="sourceLineNo">898</span> " initialization.");<a name="line.898"></a>
-<span class="sourceLineNo">899</span> }<a name="line.899"></a>
-<span class="sourceLineNo">900</span> }<a name="line.900"></a>
-<span class="sourceLineNo">901</span> }<a name="line.901"></a>
-<span class="sourceLineNo">902</span><a name="line.902"></a>
-<span class="sourceLineNo">903</span> private long initializeRegionInternals(final CancelableProgressable reporter,<a name="line.903"></a>
-<span class="sourceLineNo">904</span> final MonitoredTask status) throws IOException {<a name="line.904"></a>
-<span class="sourceLineNo">905</span> if (coprocessorHost != null) {<a name="line.905"></a>
-<span class="sourceLineNo">906</span> status.setStatus("Running coprocessor pre-open hook");<a name="line.906"></a>
-<span class="sourceLineNo">907</span> coprocessorHost.preOpen();<a name="line.907"></a>
-<span class="sourceLineNo">908</span> }<a name="line.908"></a>
-<span class="sourceLineNo">909</span><a name="line.909"></a>
-<span class="sourceLineNo">910</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.910"></a>
-<span class="sourceLineNo">911</span> // Only the primary replica should write .regioninfo<a name="line.911"></a>
-<span class="sourceLineNo">912</span> if (this.getRegionInfo().getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.912"></a>
-<span class="sourceLineNo">913</span> status.setStatus("Writing region info on filesystem");<a name="line.913"></a>
-<span class="sourceLineNo">914</span> fs.checkRegionInfoOnFilesystem();<a name="line.914"></a>
-<span class="sourceLineNo">915</span> }<a name="line.915"></a>
-<span class="sourceLineNo">916</span><a name="line.916"></a>
-<span class="sourceLineNo">917</span> // Initialize all the HStores<a name="line.917"></a>
-<span class="sourceLineNo">918</span> status.setStatus("Initializing all the Stores");<a name="line.918"></a>
-<span class="sourceLineNo">919</span> long maxSeqId = initializeStores(reporter, status);<a name="line.919"></a>
-<span class="sourceLineNo">920</span> this.mvcc.advanceTo(maxSeqId);<a name="line.920"></a>
-<span class="sourceLineNo">921</span> if (ServerRegionReplicaUtil.shouldReplayRecoveredEdits(this)) {<a name="line.921"></a>
-<span class="sourceLineNo">922</span> Collection<HStore> stores = this.stores.values();<a name="line.922"></a>
-<span class="sourceLineNo">923</span> try {<a name="line.923"></a>
-<span class="sourceLineNo">924</span> // update the stores that we are replaying<a name="line.924"></a>
-<span class="sourceLineNo">925</span> LOG.debug("replaying wal for " + this.getRegionInfo().getEncodedName());<a name="line.925"></a>
-<span class="sourceLineNo">926</span> stores.forEach(HStore::startReplayingFromWAL);<a name="line.926"></a>
-<span class="sourceLineNo">927</span> // Recover any edits if available.<a name="line.927"></a>
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-<span class="sourceLineNo">929</span> replayRecoveredEditsIfAny(this.fs.getRegionDir(), maxSeqIdInStores, reporter, status));<a name="line.929"></a>
-<span class="sourceLineNo">930</span> // Make sure mvcc is up to max.<a name="line.930"></a>
-<span class="sourceLineNo">931</span> this.mvcc.advanceTo(maxSeqId);<a name="line.931"></a>
-<span class="sourceLineNo">932</span> } finally {<a name="line.932"></a>
-<span class="sourceLineNo">933</span> LOG.debug("stopping wal replay for " + this.getRegionInfo().getEncodedName());<a name="line.933"></a>
-<span class="sourceLineNo">934</span> // update the stores that we are done replaying<a name="line.934"></a>
-<span class="sourceLineNo">935</span> stores.forEach(HStore::stopReplayingFromWAL);<a name="line.935"></a>
-<span class="sourceLineNo">936</span> }<a name="line.936"></a>
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-<span class="sourceLineNo">939</span><a name="line.939"></a>
-<span class="sourceLineNo">940</span> this.writestate.setReadOnly(ServerRegionReplicaUtil.isReadOnly(this));<a name="line.940"></a>
-<span class="sourceLineNo">941</span> this.writestate.flushRequested = false;<a name="line.941"></a>
-<span class="sourceLineNo">942</span> this.writestate.compacting.set(0);<a name="line.942"></a>
-<span class="sourceLineNo">943</span><a name="line.943"></a>
-<span class="sourceLineNo">944</span> if (this.writestate.writesEnabled) {<a name="line.944"></a>
-<span class="sourceLineNo">945</span> LOG.debug("Cleaning up temporary data for " + this.getRegionInfo().getEncodedName());<a name="line.945"></a>
-<span class="sourceLineNo">946</span> // Remove temporary data left over from old regions<a name="line.946"></a>
-<span class="sourceLineNo">947</span> status.setStatus("Cleaning up temporary data from old regions");<a name="line.947"></a>
-<span class="sourceLineNo">948</span> fs.cleanupTempDir();<a name="line.948"></a>
-<span class="sourceLineNo">949</span> }<a name="line.949"></a>
-<span class="sourceLineNo">950</span><a name="line.950"></a>
-<span class="sourceLineNo">951</span> if (this.writestate.writesEnabled) {<a name="line.951"></a>
-<span class="sourceLineNo">952</span> status.setStatus("Cleaning up detritus from prior splits");<a name="line.952"></a>
-<span class="sourceLineNo">953</span> // Get rid of any splits or merges that were lost in-progress. Clean out<a name="line.953"></a>
-<span class="sourceLineNo">954</span> // these directories here on open. We may be opening a region that was<a name="line.954"></a>
-<span class="sourceLineNo">955</span> // being split but we crashed in the middle of it all.<a name="line.955"></a>
-<span class="sourceLineNo">956</span> LOG.debug("Cleaning up detritus for " + this.getRegionInfo().getEncodedName());<a name="line.956"></a>
-<span class="sourceLineNo">957</span> fs.cleanupAnySplitDetritus();<a name="line.957"></a>
-<span class="sourceLineNo">958</span> fs.cleanupMergesDir();<a name="line.958"></a>
-<span class="sourceLineNo">959</span> }<a name="line.959"></a>
+<span class="sourceLineNo">880</span> @VisibleForTesting<a name="line.880"></a>
+<span class="sourceLineNo">881</span> long initialize(final CancelableProgressable reporter) throws IOException {<a name="line.881"></a>
+<span class="sourceLineNo">882</span><a name="line.882"></a>
+<span class="sourceLineNo">883</span> //Refuse to open the region if there is no column family in the table<a name="line.883"></a>
+<span class="sourceLineNo">884</span> if (htableDescriptor.getColumnFamilyCount() == 0) {<a name="line.884"></a>
+<span class="sourceLineNo">885</span> throw new DoNotRetryIOException("Table " + htableDescriptor.getTableName().getNameAsString()+<a name="line.885"></a>
+<span class="sourceLineNo">886</span> " should have at least one column family.");<a name="line.886"></a>
+<span class="sourceLineNo">887</span> }<a name="line.887"></a>
+<span class="sourceLineNo">888</span><a name="line.888"></a>
+<span class="sourceLineNo">889</span> MonitoredTask status = TaskMonitor.get().createStatus("Initializing region " + this);<a name="line.889"></a>
+<span class="sourceLineNo">890</span> long nextSeqId = -1;<a name="line.890"></a>
+<span class="sourceLineNo">891</span> try {<a name="line.891"></a>
+<span class="sourceLineNo">892</span> nextSeqId = initializeRegionInternals(reporter, status);<a name="line.892"></a>
+<span class="sourceLineNo">893</span> return nextSeqId;<a name="line.893"></a>
+<span class="sourceLineNo">894</span> } catch (IOException e) {<a name="line.894"></a>
+<span class="sourceLineNo">895</span> LOG.warn("Failed initialize of region= {}, starting to roll back memstore",<a name="line.895"></a>
+<span class="sourceLineNo">896</span> getRegionInfo().getRegionNameAsString(), e);<a name="line.896"></a>
+<span class="sourceLineNo">897</span> // global memstore size will be decreased when dropping memstore<a name="line.897"></a>
+<span class="sourceLineNo">898</span> try {<a name="line.898"></a>
+<span class="sourceLineNo">899</span> //drop the memory used by memstore if open region fails<a name="line.899"></a>
+<span class="sourceLineNo">900</span> dropMemStoreContents();<a name="line.900"></a>
+<span class="sourceLineNo">901</span> } catch (IOException ioE) {<a name="line.901"></a>
+<span class="sourceLineNo">902</span> if (conf.getBoolean(MemStoreLAB.USEMSLAB_KEY, MemStoreLAB.USEMSLAB_DEFAULT)) {<a name="line.902"></a>
+<span class="sourceLineNo">903</span> LOG.warn("Failed drop memstore of region= {}, "<a name="line.903"></a>
+<span class="sourceLineNo">904</span> + "some chunks may not released forever since MSLAB is enabled",<a name="line.904"></a>
+<span class="sourceLineNo">905</span> getRegionInfo().getRegionNameAsString());<a name="line.905"></a>
+<span class="sourceLineNo">906</span> }<a name="line.906"></a>
+<span class="sourceLineNo">907</span><a name="line.907"></a>
+<span class="sourceLineNo">908</span> }<a name="line.908"></a>
+<span class="sourceLineNo">909</span> throw e;<a name="line.909"></a>
+<span class="sourceLineNo">910</span> } finally {<a name="line.910"></a>
+<span class="sourceLineNo">911</span> // nextSeqid will be -1 if the initialization fails.<a name="line.911"></a>
+<span class="sourceLineNo">912</span> // At least it will be 0 otherwise.<a name="line.912"></a>
+<span class="sourceLineNo">913</span> if (nextSeqId == -1) {<a name="line.913"></a>
+<span class="sourceLineNo">914</span> status.abort("Exception during region " + getRegionInfo().getRegionNameAsString() +<a name="line.914"></a>
+<span class="sourceLineNo">915</span> " initialization.");<a name="line.915"></a>
+<span class="sourceLineNo">916</span> }<a name="line.916"></a>
+<span class="sourceLineNo">917</span> }<a name="line.917"></a>
+<span class="sourceLineNo">918</span> }<a name="line.918"></a>
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+<span class="sourceLineNo">921</span> final MonitoredTask status) throws IOException {<a name="line.921"></a>
+<span class="sourceLineNo">922</span> if (coprocessorHost != null) {<a name="line.922"></a>
+<span class="sourceLineNo">923</span> status.setStatus("Running coprocessor pre-open hook");<a name="line.923"></a>
+<span class="sourceLineNo">924</span> coprocessorHost.preOpen();<a name="line.924"></a>
+<span class="sourceLineNo">925</span> }<a name="line.925"></a>
+<span class="sourceLineNo">926</span><a name="line.926"></a>
+<span class="sourceLineNo">927</span> // Write HRI to a file in case we need to recover hbase:meta<a name="line.927"></a>
+<span class="sourceLineNo">928</span> // Only the primary replica should write .regioninfo<a name="line.928"></a>
+<span class="sourceLineNo">929</span> if (this.getRegionInfo().getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.929"></a>
+<span class="sourceLineNo">930</span> status.setStatus("Writing region info on filesystem");<a name="line.930"></a>
+<span class="sourceLineNo">931</span> fs.checkRegionInfoOnFilesystem();<a name="line.931"></a>
+<span class="sourceLineNo">932</span> }<a name="line.932"></a>
+<span class="sourceLineNo">933</span><a name="line.933"></a>
+<span class="sourceLineNo">934</span> // Initialize all the HStores<a name="line.934"></a>
+<span class="sourceLineNo">935</span> status.setStatus("Initializing all the Stores");<a name="line.935"></a>
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+<span class="sourceLineNo">937</span> this.mvcc.advanceTo(maxSeqId);<a name="line.937"></a>
+<span class="sourceLineNo">938</span> if (ServerRegionReplicaUtil.shouldReplayRecoveredEdits(this)) {<a name="line.938"></a>
+<span class="sourceLineNo">939</span> Collection<HStore> stores = this.stores.values();<a name="line.939"></a>
+<span class="sourceLineNo">940</span> try {<a name="line.940"></a>
+<span class="sourceLineNo">941</span> // update the stores that we are replaying<a name="line.941"></a>
+<span class="sourceLineNo">942</span> LOG.debug("replaying wal for " + this.getRegionInfo().getEncodedName());<a name="line.942"></a>
+<span class="sourceLineNo">943</span> stores.forEach(HStore::startReplayingFromWAL);<a name="line.943"></a>
+<span class="sourceLineNo">944</span> // Recover any edits if available.<a name="line.944"></a>
+<span class="sourceLineNo">945</span> maxSeqId = Math.max(maxSeqId,<a name="line.945"></a>
+<span class="sourceLineNo">946</span> replayRecoveredEditsIfAny(this.fs.getRegionDir(), maxSeqIdInStores, reporter, status));<a name="line.946"></a>
+<span class="sourceLineNo">947</span> // Make sure mvcc is up to max.<a name="line.947"></a>
+<span class="sourceLineNo">948</span> this.mvcc.advanceTo(maxSeqId);<a name="line.948"></a>
+<span class="sourceLineNo">949</span> } finally {<a name="line.949"></a>
+<span class="sourceLineNo">950</span> LOG.debug("stopping wal replay for " + this.getRegionInfo().getEncodedName());<a name="line.950"></a>
+<span class="sourceLineNo">951</span> // update the stores that we are done replaying<a name="line.951"></a>
+<span class="sourceLineNo">952</span> stores.forEach(HStore::stopReplayingFromWAL);<a name="line.952"></a>
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+<span class="sourceLineNo">954</span> }<a name="line.954"></a>
+<span class="sourceLineNo">955</span> this.lastReplayedOpenRegionSeqId = maxSeqId;<a name="line.955"></a>
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+<span class="sourceLineNo">957</span> this.writestate.setReadOnly(ServerRegionReplicaUtil.isReadOnly(this));<a name="line.957"></a>
+<span class="sourceLineNo">958</span> this.writestate.flushRequested = false;<a name="line.958"></a>
+<span class="sourceLineNo">959</span> this.writestate.compacting.set(0);<a name="line.959"></a>
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-<span class="sourceLineNo">961</span> // Initialize split policy<a name="line.961"></a>
-<span class="sourceLineNo">962</span> this.splitPolicy = RegionSplitPolicy.create(this, conf);<a name="line.962"></a>
-<span class="sourceLineNo">963</span><a name="line.963"></a>
-<span class="sourceLineNo">964</span> // Initialize flush policy<a name="line.964"></a>
-<span class="sourceLineNo">965</span> this.flushPolicy = FlushPolicyFactory.create(this, conf);<a name="line.965"></a>
-<span class="sourceLineNo">966</span><a name="line.966"></a>
-<span class="sourceLineNo">967</span> long lastFlushTime = EnvironmentEdgeManager.currentTime();<a name="line.967"></a>
-<span class="sourceLineNo">968</span> for (HStore store: stores.values()) {<a name="line.968"></a>
-<span class="sourceLineNo">969</span> this.lastStoreFlushTimeMap.put(store, lastFlushTime);<a name="line.969"></a>
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-<span class="sourceLineNo">973</span> // (particularly if no recovered edits, seqid will be -1).<a name="line.973"></a>
-<span class="sourceLineNo">974</span> long maxSeqIdFromFile =<a name="line.974"></a>
-<span class="sourceLineNo">975</span> WALSplitter.getMaxRegionSequenceId(fs.getFileSystem(), fs.getRegionDir());<a name="line.975"></a>
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-<span class="sourceLineNo">977</span> // The openSeqNum will always be increase even for read only region, as we rely on it to<a name="line.977"></a>
-<span class="sourceLineNo">978</span> // determine whether a region has been successfully reopend, so here we always need to update<a name="line.978"></a>
-<span class="sourceLineNo">979</span> // the max sequence id file.<a name="line.979"></a>
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-<span class="sourceLineNo">981</span> LOG.debug("writing seq id for {}", this.getRegionInfo().getEncodedName());<a name="line.981"></a>
-<span class="sourceLineNo">982</span> WALSplitter.writeRegionSequenceIdFile(fs.getFileSystem(), fs.getRegionDir(), nextSeqId - 1);<a name="line.982"></a>
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-<span class="sourceLineNo">984</span><a name="line.984"></a>
-<span class="sourceLineNo">985</span> LOG.info("Opened {}; next sequenceid={}", this.getRegionInfo().getShortNameToLog(), nextSeqId);<a name="line.985"></a>
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-<span class="sourceLineNo">987</span> // A region can be reopened if failed a split; reset flags<a name="line.987"></a>
-<span class="sourceLineNo">988</span> this.closing.set(false);<a name="line.988"></a>
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-<span class="sourceLineNo">992</span> LOG.debug("Running coprocessor post-open hooks for " + this.getRegionInfo().getEncodedName());<a name="line.992"></a>
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-<span class="sourceLineNo">994</span> coprocessorHost.postOpen();<a name="line.994"></a>
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-<span class="sourceLineNo">999</span> }<a name="line.999"></a>
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-<span class="sourceLineNo">1001</span> /**<a name="line.1001"></a>
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-<span class="sourceLineNo">1003</span> * @param reporter<a name="line.1003"></a>
-<span class="sourceLineNo">1004</span> * @param status<a name="line.1004"></a>
-<span class="sourceLineNo">1005</span> * @return Highest sequenceId found out in a Store.<a name="line.1005"></a>
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-<span class="sourceLineNo">1010</span> // Load in all the HStores.<a name="line.1010"></a>
-<span class="sourceLineNo">1011</span> long maxSeqId = -1;<a name="line.1011"></a>
-<span class="sourceLineNo">1012</span> // initialized to -1 so that we pick up MemstoreTS from column families<a name="line.1012"></a>
-<span class="sourceLineNo">1013</span> long maxMemstoreTS = -1;<a name="line.1013"></a>
-<span class="sourceLineNo">1014</span><a name="line.1014"></a>
-<span class="sourceLineNo">1015</span> if (htableDescriptor.getColumnFamilyCount() != 0) {<a name="line.1015"></a>
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