[jira] [Resolved] (HIVE-10298) LLAP: Cache cleaner throws Negative sleep exception

["Sergey Shelukhin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-10298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Shelukhin resolved HIVE-10298.
-------------------------------------
       Resolution: Fixed
    Fix Version/s: llap

fixed in branch

> LLAP: Cache cleaner throws Negative sleep exception
> ---------------------------------------------------
>
>                 Key: HIVE-10298
>                 URL: https://issues.apache.org/jira/browse/HIVE-10298
>             Project: Hive
>          Issue Type: Sub-task
>    Affects Versions: llap
>            Reporter: Gopal V
>            Assignee: Sergey Shelukhin
>            Priority: Minor
>             Fix For: llap
>
>
> {code}
> 2015-04-10 00:33:57,791 [org.apache.hadoop.util.JvmPauseMonitor$Monitor@5cee5251()] WARN org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 10838ms
> GC pool 'PS MarkSweep' had collection(s): count=74 time=75850ms
> ...
> 2015-04-10 00:34:33,265 [IPC Server handler 3 on 15001()] WARN org.apache.hadoop.ipc.Server: IPC Server handler 3 on 15001, call org.apache.hadoop.hive.llap.daemon.LlapDaemonProtocolBlockingPB.submitWork from 172.19.128.59:47617 Call#2788 Retry#0: output error
> 2015-04-10 00:34:34,454 [Llap low level cache cleanup thread()] ERROR org.apache.hadoop.hive.llap.io.api.impl.LlapIoImpl: Cleanup has failed; the thread will now exit
> java.lang.IllegalArgumentException: timeout value is negative
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.apache.hadoop.hive.llap.cache.LowLevelCacheImpl$CleanupThread.doOneCleanupRound(LowLevelCacheImpl.java:426)
> 	at org.apache.hadoop.hive.llap.cache.LowLevelCacheImpl$CleanupThread.run(LowLevelCacheImpl.java:387)
> {code}
> This seems to be due to a rather long GC pause 
> {code}
>  // Duration is an estimate; if the size of the map changes, it can be very different.
>       long endTime = System.nanoTime() + approxCleanupIntervalSec * 1000000000L;
> ...
> while (subIter.hasNext()) {
>           Thread.sleep((leftToCheck <= 0)
>               ? 1 : (endTime - System.nanoTime()) / (1000000L * leftToCheck));
>           if (subIter.next().getValue().isInvalid()) {
> {code}
> We spent more than 5 minutes in a GC pause causing this error.



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