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https://issues.apache.org/jira/browse/YARN-6054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi Prakash updated YARN-6054:
-------------------------------
Attachment: YARN-6054.02.patch
Thanks Li Lu! I agree with you. A repair operation definitely changes the
LevelDb files. In this patch I am creating a backup of the corrupted database.
I am consciously neglecting to do cleanup of old backups because I don't expect
this to occur too often. If we want automatic cleanup of old backups I propose
we punt that to another JIRA.
> TimelineServer fails to start when some LevelDb state files are missing.
> ------------------------------------------------------------------------
>
> Key: YARN-6054
> URL: https://issues.apache.org/jira/browse/YARN-6054
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.0.0-alpha2
> Reporter: Ravi Prakash
> Assignee: Ravi Prakash
> Attachments: YARN-6054.01.patch, YARN-6054.02.patch
>
>
> We encountered an issue recently where the TimelineServer failed to start
> because some state files went missing.
> {code}
> 2016-11-21 20:46:43,134 INFO org.apache.hadoop.service.AbstractService:
> Service
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer
> failed in state INITED
> ; cause: org.apache.hadoop.service.ServiceStateException:
> org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 9
> missing files; e.g.: <levelDbStorePath>/timelines
> erver/leveldb-timeline-store.ldb/127897.sst
> org.apache.hadoop.service.ServiceStateException:
> org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 9
> missing files; e.g.: <levelDbStorePath>/timelineserver/lev
> eldb-timeline-store.ldb/127897.sst
> 2016-11-21 20:46:43,135 FATAL
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer:
> Error starting ApplicationHistoryServer
> org.apache.hadoop.service.ServiceStateException:
> org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 9
> missing files; e.g.:
> <levelDbStorePath>/timelineserver/leveldb-timeline-store.ldb/127897.sst
> at
> org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:59)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:172)
> at
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
> at
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer.serviceInit(ApplicationHistoryServer.java:104)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
> at
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer.launchAppHistoryServer(ApplicationHistoryServer.java:172)
> at
> org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer.main(ApplicationHistoryServer.java:182)
> Caused by: org.fusesource.leveldbjni.internal.NativeDB$DBException:
> Corruption: 9 missing files; e.g.:
> <levelDbStorePath>/timelineserver/leveldb-timeline-store.ldb/127897.sst
> at
> org.fusesource.leveldbjni.internal.NativeDB.checkStatus(NativeDB.java:200)
> at org.fusesource.leveldbjni.internal.NativeDB.open(NativeDB.java:218)
> at org.fusesource.leveldbjni.JniDBFactory.open(JniDBFactory.java:168)
> at
> org.apache.hadoop.yarn.server.timeline.LeveldbTimelineStore.serviceInit(LeveldbTimelineStore.java:229)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
> ... 5 more
> 2016-11-21 20:46:43,136 INFO org.apache.hadoop.util.ExitUtil: Exiting with
> status -1
> {code}
> Ideally we shouldn't have any missing state files. However I'd posit that the
> TimelineServer should have graceful degradation instead of failing to start
> at all.
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