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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2050) log recovery fails when using two namenodes and viewfs://
Date Thu, 19 Dec 2013 02:14:08 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13852492#comment-13852492
] 

Josh Elser commented on ACCUMULO-2050:
--------------------------------------

Wow, that's rough -- but, giving some more feedback on the HDFS ticket would probably be good
too :P

I haven't looked at the viewfs stuff at all yet. It seems excessive to reimplement something
whose functionality already (appears) to be in HDFS. Is delaying viewfs for 1.6 and planning
for it in a 1.7 timeline reasonable? This might actually be mutually agreeable for a few other
reasons (things that didn't make the 1.6 cut).

> log recovery fails when using two namenodes and viewfs://
> ---------------------------------------------------------
>
>                 Key: ACCUMULO-2050
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2050
>             Project: Accumulo
>          Issue Type: Sub-task
>            Reporter: Keith Turner
>             Fix For: 1.6.0
>
>
> See parent ticket for env info.  Saw the following error in log recovery.
> {noformat}
> Failed to initiate log sort viewfs:/nn2/accumulo/wal/ip-10-1-3-25+9997/777b3e10-da00-47d2-819b-24464997d784
> 	java.lang.IllegalStateException: Don't know how to recover a lease for org.apache.accumulo.server.fs.VolumeManagerImpl
> 		at org.apache.accumulo.server.master.recovery.HadoopLogCloser.close(HadoopLogCloser.java:56)
> 		at org.apache.accumulo.master.recovery.RecoveryManager$LogSortTask.run(RecoveryManager.java:89)
> 		at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> 		at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> 		at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
> 		at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
> 		at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 		at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 		at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
> 		at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
> 		at java.lang.Thread.run(Thread.java:744)
> {noformat}



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