ramkrishna.s.vasudevan created HBASE-13970:
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Summary: NPE during compaction in trunk
Key: HBASE-13970
URL: https://issues.apache.org/jira/browse/HBASE-13970
Project: HBase
Issue Type: Bug
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
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.
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