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https://issues.apache.org/jira/browse/PHOENIX-3001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sergey Soldatov updated PHOENIX-3001:
-------------------------------------
Attachment: PHOENIX-3001.patch
> Dropping local index and recreation it with following split may cause RS
> failure
> --------------------------------------------------------------------------------
>
> Key: PHOENIX-3001
> URL: https://issues.apache.org/jira/browse/PHOENIX-3001
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.8.0
> Reporter: Sergey Soldatov
> Assignee: Sergey Soldatov
> Priority: Critical
> Attachments: PHOENIX-3001.patch
>
>
> If local index was dropped and recreated during the next split RS crashes
> with the following exception :
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.isSatisfiedMidKeyCondition(LocalIndexStoreFileScanner.java:158)
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.seekOrReseekToProperKey(LocalIndexStoreFileScanner.java:236)
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.seekOrReseek(LocalIndexStoreFileScanner.java:217)
> at
> org.apache.hadoop.hbase.regionserver.LocalIndexStoreFileScanner.seek(LocalIndexStoreFileScanner.java:89)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.seekScanners(StoreScanner.java:363)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:281)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:243)
> at
> org.apache.hadoop.hbase.regionserver.IndexHalfStoreFileReaderGenerator.preCompactScannerOpen(IndexHalfStoreFileReaderGenerator.java:212)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$6.call(RegionCoprocessorHost.java:499)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionOperation.call(RegionCoprocessorHost.java:1638)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1712)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperationWithResult(RegionCoprocessorHost.java:1677)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.preCompactScannerOpen(RegionCoprocessorHost.java:494)
> at
> org.apache.hadoop.hbase.regionserver.compactions.Compactor.preCreateCoprocScanner(Compactor.java:349)
> at
> org.apache.hadoop.hbase.regionserver.compactions.Compactor.compact(Compactor.java:293)
> at
> org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor.compact(DefaultCompactor.java:68)
> at
> org.apache.hadoop.hbase.regionserver.DefaultStoreEngine$DefaultCompactionContext.compact(DefaultStoreEngine.java:126)
> at
> org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:1239)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.compact(HRegion.java:1904)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.doCompaction(CompactSplitThread.java:525)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.run(CompactSplitThread.java:562)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> The reason is that in the isSatisfiedMidKeyCondition we are looking for
> current index maintainers only, so for deleted rows we are unable to build
> rowkey
> FYI [~rajeshbabu].
> [[email protected]] It looks like a blocker for the release
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