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https://issues.apache.org/jira/browse/PHOENIX-4094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
chenglei updated PHOENIX-4094:
------------------------------
Summary: ParallelWriterIndexCommitter incorrectly applies local updates to
index tables for 4.x-HBase-0.98 (was: ParallelWriterIndexCommitter incorrectly
applys local updates to index tables for 4.x-HBase-0.98)
> ParallelWriterIndexCommitter incorrectly applies local updates to index
> tables for 4.x-HBase-0.98
> -------------------------------------------------------------------------------------------------
>
> Key: PHOENIX-4094
> URL: https://issues.apache.org/jira/browse/PHOENIX-4094
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.11.0
> Reporter: chenglei
> Assignee: chenglei
> Fix For: 4.12.0
>
> Attachments: PHOENIX-4094_4.x-HBase-0.98_v1.patch,
> PHOENIX-4094_v1.patch
>
>
> I used phoenix-4.x-HBase-0.98 in my hbase cluster.When I restarted my hbase
> cluster a certain time, I noticed some RegionServers have plenty of
> {{WrongRegionException}} as following:
> {code:java}
> 2017-08-01 11:53:10,669 WARN
> [rsync.slave005.bizhbasetest.sjs.ted,60020,1501511894174-index-writer--pool2-t786]
> regionserver.HRegion: Failed getting lock in batch put,
> row=\x10\x00\x00\x00913f0eed-6710-4de9-8bac-077a106bb9ae_0
> org.apache.hadoop.hbase.regionserver.WrongRegionException: Requested row out
> of range for row lock on HRegion
> BIZARCH_NS_PRODUCT.BIZTRACER_SPAN,90ffd783-b0a3-4f8a-81ef-0a7535fea197_0,1490066612493.463220cd8fad7254481595911e62d74d.,
> startKey='90ffd783-b0a3-4f8a-81ef-0a7535fea197_0',
> getEndKey()='917fc343-3331-47fa-907c-df83a6f302f7_0',
> row='\x10\x00\x00\x00913f0eed-6710-4de9-8bac-077a106bb9ae_0'
> at
> org.apache.hadoop.hbase.regionserver.HRegion.checkRow(HRegion.java:3539)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.getRowLock(HRegion.java:3557)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:2394)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2261)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2213)
> at
> org.apache.phoenix.util.IndexUtil.writeLocalUpdates(IndexUtil.java:671)
> at
> org.apache.phoenix.hbase.index.write.ParallelWriterIndexCommitter$1.call(ParallelWriterIndexCommitter.java:157)
> at
> org.apache.phoenix.hbase.index.write.ParallelWriterIndexCommitter$1.call(ParallelWriterIndexCommitter.java:134)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> The problem is caused by the ParallelWriterIndexCommitter.write method, in
> following line 151, if {{allowLocalUpdates}} is true, it would wiite index
> mutations to current data table region unconditionlly，which is obviously
> inappropriate:
> {code:java}
> 150 try {
> 151 if (allowLocalUpdates && env != null) {
> 152 try {
> 153 throwFailureIfDone();
> 154
> IndexUtil.writeLocalUpdates(env.getRegion(), mutations, true);
> 155 return null;
> 156 } catch (IOException ignord) {
> 157 // when it's failed we fall back to the
> standard & slow way
> 158 if (LOG.isDebugEnabled()) {
> 159 LOG.debug("indexRegion.batchMutate
> failed and fall back to HTable.batch(). Got error="
> 160 + ignord);
> 161 }
> 162 }
> 163 }
> {code}
> If a data table has a global index table , and when we replay the WALs to
> index table in Indexer.postOpen method in following
> line 691, which the {{allowLocalUpdates}} parameter is true, the {{updates}}
> parameter for the global index table would incorrectly be written to the
> current data table region:
> {code:java}
> 688 // do the usual writer stuff, killing the server again, if we
> can't manage to make the index
> 689 // writes succeed again
> 690 try {
> 691 writer.writeAndKillYourselfOnFailure(updates, true);
> 692 } catch (IOException e) {
> 693 LOG.error("During WAL replay of outstanding index updates,
> "
> 694 + "Exception is thrown instead of killing server
> during index writing", e);
> 695 }
> 696 } finally {
> {code}
> However, ParallelWriterIndexCommitter.write method in the master and other
> 4.x branches is correct, just as following line 150 and line 151 :
> {code:java}
> 147 try {
> 148 if (allowLocalUpdates
> 149 && env != null
> 150 && tableReference.getTableName().equals(
> 151
> env.getRegion().getTableDesc().getNameAsString())) {
> 152 try {
> 153 throwFailureIfDone();
> 154
> IndexUtil.writeLocalUpdates(env.getRegion(), mutations, true);
> 155 return null;
> 156 } catch (IOException ignord) {
> 157 // when it's failed we fall back to the
> standard & slow way
> 158 if (LOG.isDebugEnabled()) {
> 159 LOG.debug("indexRegion.batchMutate
> failed and fall back to HTable.batch(). Got error="
> 160 + ignord);
> 161 }
> 162 }
> 163 }
> {code}
> This inconsistency of branches is introduced by PHOENIX-1734 and
> PHOENIX-3018, because lack of unit tests or IT tests for
> Indexer.preWALRestore /postOpen, the inconsistency is not detected.
> BTW，the TrackingParallelWriterIndexCommitter is right for master and all the
> 4.x branches.
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