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https://issues.apache.org/jira/browse/HBASE-10705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ted Yu updated HBASE-10705:
---------------------------
Attachment: 10705-v2.txt
> CompactionRequest#toString() may throw NullPointerException
> -----------------------------------------------------------
>
> Key: HBASE-10705
> URL: https://issues.apache.org/jira/browse/HBASE-10705
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.96.0
> Reporter: Ted Yu
> Assignee: Rekha Joshi
> Priority: Minor
> Fix For: 0.96.0
>
> Attachments: 10705-v2.txt, HBASE-10705.1.patch
>
>
> I found the following in
> hbase-server/target/surefire-reports/org.apache.hadoop.hbase.util.TestMergeTable-output.txt
> :
> {code}
> 2014-03-08 01:22:35,311 INFO [IPC Server handler 0 on 39151]
> blockmanagement.BlockManager(1009): BLOCK* addToInvalidates:
> blk_1073741852_1028 127.0.0.1:58684
> 2014-03-08 01:22:35,312 INFO
> [RS:0;kiyo:45971-shortCompactions-1394241753752] regionserver.HRegion(1393):
> compaction interrupted
> java.io.InterruptedIOException: Aborting compaction of store contents in
> region test,,1394241738901.edbcdf3be9dd27c52b1fca1b09a5a582. because it was
> interrupted.
> at
> org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor.compact(DefaultCompactor.java:81)
> at
> org.apache.hadoop.hbase.regionserver.DefaultStoreEngine$DefaultCompactionContext.compact(DefaultStoreEngine.java:109)
> at
> org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:1131)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.compact(HRegion.java:1390)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.run(CompactSplitThread.java:475)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:724)
> 2014-03-08 01:22:35,314 DEBUG [RS_CLOSE_REGION-kiyo:45971-0]
> regionserver.HRegion(1069): Updates disabled for region
> test,,1394241738901.edbcdf3be9dd27c52b1fca1b09a5a582.
> 2014-03-08 01:22:35,316 INFO
> [StoreCloserThread-test,,1394241738901.edbcdf3be9dd27c52b1fca1b09a5a582.-1]
> regionserver.HStore(793): Closed contents
> 2014-03-08 01:22:35,316 ERROR
> [RS:0;kiyo:45971-shortCompactions-1394241753752]
> regionserver.CompactSplitThread$CompactionRunner(496): Compaction failed
> Request = regionName=test,,1394241738901.edbcdf3be9dd27c52b1fca1b09a5a582.,
> storeName=contents, fileCount=7, fileSize=71.3 M (10.2 M, 10.2 M, 10.2 M,
> 10.2 M, 10.2 M), priority=3, time=8144240699213330
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest$2.apply(CompactionRequest.java:213)
> at
> org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest$2.apply(CompactionRequest.java:211)
> at com.google.common.collect.Iterators$9.transform(Iterators.java:845)
> at
> com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
> at com.google.common.base.Joiner.appendTo(Joiner.java:125)
> at com.google.common.base.Joiner.appendTo(Joiner.java:186)
> at com.google.common.base.Joiner.join(Joiner.java:243)
> at com.google.common.base.Joiner.join(Joiner.java:232)
> at
> org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest.toString(CompactionRequest.java:204)
> at java.lang.String.valueOf(String.java:2854)
> at java.lang.StringBuilder.append(StringBuilder.java:128)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.toString(CompactSplitThread.java:425)
> at java.lang.String.valueOf(String.java:2854)
> at java.lang.StringBuilder.append(StringBuilder.java:128)
> at
> org.apache.hadoop.hbase.regionserver.CompactSplitThread$CompactionRunner.run(CompactSplitThread.java:477)
> {code}
> The exception came from apply() method:
> {code}
> }), new Function<StoreFile, String>() {
> public String apply(StoreFile sf) {
> return StringUtils.humanReadableInt(sf.getReader().length());
> }
> }));
> {code}
> Looks like sf.getReader() might become null when
> StringUtils.humanReadableInt() is called
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