[
https://issues.apache.org/jira/browse/HBASE-13970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14601295#comment-14601295
]
Duo Zhang commented on HBASE-13970:
-----------------------------------
Oh, this should be a bug on all branches which contains HBASE-8329. I used to
assume that compactions can not be executed parallel on the same store, so the
compationName only contains regionName and storeName. I think we could add a
counter in the name to avoid conflict.
> NPE during compaction in trunk
> ------------------------------
>
> Key: HBASE-13970
> URL: https://issues.apache.org/jira/browse/HBASE-13970
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 2.0.0
>
>
> Updated the trunk.. Loaded the table with PE tool. Trigger a flush to ensure
> all data is flushed out to disk. When the first compaction is triggered we
> get an NPE and this is very easy to reproduce
> {code}
> 015-06-25 21:33:46,041 INFO [main-EventThread]
> procedure.ZKProcedureMemberRpcs: Received procedure start children changed
> event: /hbase/flush-table-proc/acquired
> 2015-06-25 21:33:46,051 INFO
> [rs(stobdtserver3,16040,1435248182301)-flush-proc-pool3-thread-1]
> regionserver.HRegion: Flushing 1/1 column families, memstore=76.91 MB
> 2015-06-25 21:33:46,159 ERROR
> [regionserver/stobdtserver3/10.224.54.70:16040-longCompactions-1435248183945]
> regionserver.CompactSplitThread: Compaction failed Request =
> regionName=TestTable,00000000000000000000283887,1435248198798.028fb0324cd6eb03d5022eb8c147b7c4.,
> storeName=info, fileCount=3, fileSize=343.4 M (114.5 M, 114.5 M, 114.5 M),
> priority=3, time=7536968291719985
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.compactions.PressureAwareCompactionThroughputController$ActiveCompaction.access$700(PressureAwareCompactionThroughputController.java:79)
> at
> org.apache.hadoop.hbase.regionserver.compactions.PressureAwareCompactionThroughputController.finish(PressureAwareCompactionThroughputController.java:238)
> at
> org.apache.hadoop.hbase.regionserver.compactions.Compactor.performCompaction(Compactor.java:306)
> at
> org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor.compact(DefaultCompactor.java:106)
> at
> org.apache.hadoop.hbase.regionserver.DefaultStoreEngine$DefaultCompactionContext.compact(DefaultStoreEngine.java:112)
> at
> org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:1202)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.compact(HRegion.java:1792)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.run(CompactSplitThread.java:524)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> 2015-06-25 21:33:46,745 INFO
> [rs(stobdtserver3,16040,1435248182301)-flush-proc-pool3-thread-1]
> regionserver.DefaultStoreFlusher: Flushed, sequenceid=1534, memsize=76.9 M,
> hasBloomFilter=true, into tmp file
> hdfs://stobdtserver3:9010/hbase/data/default/TestTable/028fb0324cd6eb03d5022eb8c147b7c4/.tmp/942ba0831a0047a08987439e34361a0c
> 2015-06-25 21:33:46,772 INFO
> [rs(stobdtserver3,16040,1435248182301)-flush-proc-pool3-thread-1]
> regionserver.HStore: Added
> hdfs://stobdtserver3:9010/hbase/data/default/TestTable/028fb0324cd6eb03d5022eb8c147b7c4/info/942ba0831a0047a08987439e34361a0c,
> entries=68116, sequenceid=1534, filesize=68.7 M
> 2015-06-25 21:33:46,773 INFO
> [rs(stobdtserver3,16040,1435248182301)-flush-proc-pool3-thread-1]
> regionserver.HRegion: Finished memstore flush of ~76.91 MB/80649344,
> currentsize=0 B/0 for region
> TestTable,00000000000000000000283887,1435248198798.028fb0324cd6eb03d5022eb8c147b7c4.
> in 723ms, sequenceid=1534, compaction requested=true
> 2015-06-25 21:33:46,780 INFO [main-EventThread]
> procedure.ZKProcedureMemberRpcs: Received created
> event:/hbase/flush-table-proc/reached/TestTable
> 2015-06-25 21:33:46,790 INFO [main-EventThread]
> procedure.ZKProcedureMemberRpcs: Received created
> event:/hbase/flush-table-proc/abort/TestTable
> 2015-06-25 21:33:46,791 INFO [main-EventThread]
> procedure.ZKProcedureMemberRpcs: Received procedure abort children changed
> event: /hbase/flush-table-proc/abort
> 2015-06-25 21:33:46,803 INFO [main-EventThread]
> procedure.ZKProcedureMemberRpcs: Received procedure start children changed
> event: /hbase/flush-table-proc/acquired
> 2015-06-25 21:33:46,818 INFO [main-EventThread]
> procedure.ZKProcedureMemberRpcs: Received procedure abort children changed
> event: /hbase/flush-table-proc/abort
> {code}
> Will check this on what is the reason behind it.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
