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Posted to issues@hbase.apache.org by "Enis Soztutar (JIRA)" <ji...@apache.org> on 2014/03/28 04:33:15 UTC
[jira] [Commented] (HBASE-10859) HStore.openStoreFiles() should
pass the StoreFileInfo object to createStoreFileAndReader()
[ https://issues.apache.org/jira/browse/HBASE-10859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13950326#comment-13950326 ]
Enis Soztutar commented on HBASE-10859:
---------------------------------------
This turned out to be a bit more involved than the description. It seems that the way we open the store files of the primary from secondaries (HBASE-10352) does not use the HFileLink. I thought it was using it automatically, but does not look like it is the case. The secondary region reads was still working even when the primary does compaction (TestRegionReplicas.testRefreshStoreFiles() for example) because we open the file handle in hdfs, and even if the file is moved we would be able to read it because blocks are open.
However, it seems that we should force using the HFileLink for opening the store files from secondaries using the FileLink.FileLinkInputStream, which gives us the guarantees for reading hfile from data or archive location.
> HStore.openStoreFiles() should pass the StoreFileInfo object to createStoreFileAndReader()
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-10859
> URL: https://issues.apache.org/jira/browse/HBASE-10859
> Project: HBase
> Issue Type: Sub-task
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: hbase-10070
>
>
> We sometimes see the following stack trace on test logs (TestReplicasClient), but this is not test-specific:
> {code}
> 2014-03-26 21:44:18,662 ERROR [RS_OPEN_REGION-c64-s12:35852-2] handler.OpenRegionHandler(481): Failed open of region=TestReplicasClient,,1395895445056_0001.5f8b8db27e36d2dde781193d92a05730., starting to roll back the global memstore size.
> java.io.IOException: java.io.IOException: java.io.FileNotFoundException: File does not exist: hdfs://localhost:56276/user/jenkins/hbase/data/default/TestReplicasClient/856934fb87781c9030975706b66137a5/info/589000f197b048e0897e1d81dd7e3a90
> at org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionStores(HRegion.java:739)
> at org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionInternals(HRegion.java:646)
> at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:617)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4447)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4417)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4389)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4345)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4296)
> at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:465)
> at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:139)
> at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:128)
> 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:722)
> Caused by: java.io.IOException: java.io.FileNotFoundException: File does not exist: hdfs://localhost:56276/user/jenkins/hbase/data/default/TestReplicasClient/856934fb87781c9030975706b66137a5/info/589000f197b048e0897e1d81dd7e3a90
> at org.apache.hadoop.hbase.regionserver.HStore.openStoreFiles(HStore.java:531)
> at org.apache.hadoop.hbase.regionserver.HStore.loadStoreFiles(HStore.java:486)
> at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:254)
> at org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:3357)
> at org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:710)
> at org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:707)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> ... 3 more
> Caused by: java.io.FileNotFoundException: File does not exist: hdfs://localhost:56276/user/jenkins/hbase/data/default/TestReplicasClient/856934fb87781c9030975706b66137a5/info/589000f197b048e0897e1d81dd7e3a90
> at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1128)
> at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1120)
> at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1120)
> at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:397)
> at org.apache.hadoop.hbase.regionserver.StoreFileInfo.<init>(StoreFileInfo.java:95)
> at org.apache.hadoop.hbase.regionserver.HStore.createStoreFileAndReader(HStore.java:600)
> at org.apache.hadoop.hbase.regionserver.HStore.access$000(HStore.java:121)
> at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:506)
> at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:503)
> ... 8 more
> {code}
> The region fails to open for the region replica, because at this time, the primary region is performing a compaction. The file is moved to the archive directory in between listing of store files and opening those store files from the secondary.
> The secondary region should able to deal with this through usage of StoreFileInfo and HFile, but since we are reconstructing the StoreFileInfo object twice between HStore.openStoreFiles() and createStoreFileAndReader() we are getting this exception.
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