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https://issues.apache.org/jira/browse/HBASE-23375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989556#comment-16989556
]
Baiqiang Zhao commented on HBASE-23375:
---------------------------------------
Yes, the patch is the same, but NPE happened at a different time. So the title
should be "Backport HBASE-22441 to branch-1" ? [~binlijin]
> NPE during opening a daughter region in cacheBlock
> ---------------------------------------------------
>
> Key: HBASE-23375
> URL: https://issues.apache.org/jira/browse/HBASE-23375
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.6.0, 1.4.11
> Reporter: Baiqiang Zhao
> Assignee: Baiqiang Zhao
> Priority: Major
>
> The RegionServer log is :
> {code:java}
> 2019-12-04 11:32:37,238 INFO [regionserver/localhost/0.0.0.0:16020-splits-0]
> regionserver.SplitRequest: Running rollback/cleanup of failed split of
> ONLINE:testTable,\x00999999999\x0014aa9,1575406565984.48f462e65b7961420737797c2ccf76c9.;
> Failed
> localhost,16020,1574999150042-daughterOpener=aad203e7b1aa26a26b50c84f70397456
> java.io.IOException: Failed
> localhost,16020,1574999150042-daughterOpener=aad203e7b1aa26a26b50c84f70397456
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.openDaughters(SplitTransactionImpl.java:504)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.stepsAfterPONR(SplitTransactionImpl.java:598)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.execute(SplitTransactionImpl.java:581)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.doSplitting(SplitRequest.java:82)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.run(SplitRequest.java:153)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.io.IOException: java.io.IOException:
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HRegion.initializeStores(HRegion.java:1041)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionInternals(HRegion.java:916)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:884)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7098)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.openDaughterRegion(SplitTransactionImpl.java:732)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl$DaughterOpener.run(SplitTransactionImpl.java:712)
> ... 1 more
> Caused by: java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.HStore.openStoreFiles(HStore.java:577)
> at
> org.apache.hadoop.hbase.regionserver.HStore.loadStoreFiles(HStore.java:532)
> at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:281)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:5469)
> at
> org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:1015)
> at
> org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:1012)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> ... 1 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.io.hfile.BlockCacheUtil.compareCacheBlock(BlockCacheUtil.java:185)
> at
> org.apache.hadoop.hbase.io.hfile.BlockCacheUtil.validateBlockAddition(BlockCacheUtil.java:204)
> at
> org.apache.hadoop.hbase.io.hfile.BlockCacheUtil.shouldReplaceExistingCacheBlock(BlockCacheUtil.java:233)
> at
> org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.cacheBlockWithWait(BucketCache.java:433)
> at
> org.apache.hadoop.hbase.io.hfile.bucket.BucketCache.cacheBlock(BucketCache.java:419)
> at
> org.apache.hadoop.hbase.io.hfile.CombinedBlockCache.cacheBlock(CombinedBlockCache.java:68)
> at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2.readBlock(HFileReaderV2.java:462)
> at
> org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.loadDataBlockWithScanInfo(HFileBlockIndex.java:269)
> at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:651)
> at
> org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:601)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader$1.seekTo(HalfStoreFileReader.java:190)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.getFirstKey(HalfStoreFileReader.java:365)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile.open(StoreFile.java:546)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile.createReader(StoreFile.java:563)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile.createReader(StoreFile.java:553)
> at
> org.apache.hadoop.hbase.regionserver.HStore.createStoreFileAndReader(HStore.java:707)
> at
> org.apache.hadoop.hbase.regionserver.HStore.access$000(HStore.java:122)
> at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:552)
> at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:549)
> ... 6 more
> 2019-12-04 11:32:37,288 WARN [regionserver/localhost/0.0.0.0:16020-splits-0]
> regionserver.SplitTransaction: Should use rollback(Server,
> RegionServerServices, User)
> 2019-12-04 11:32:37,294 FATAL [regionserver/localhost/0.0.0.0:16020-splits-0]
> regionserver.HRegionServer: ABORTING region server
> localhost,16020,1574999150042: Abort; we got an error after
> point-of-no-return{code}
>
>
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