[jira] Commented: (HBASE-2039) G1 GC issues

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

    [ https://issues.apache.org/jira/browse/HBASE-2039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835597#action_12835597 ] 

stack commented on HBASE-2039:
------------------------------

6u18 running CMS crashes on me though adding  -XX:-ReduceInitialCardMarks  might help if I read a recent note up on the gc list properly.  Its the datanode that crashes on me.

1.7.0b83 is best I've run so far.  It ran the longest.  It OOME'd and then SIGSEGV'd dumping the heap.  I reported it.  Still not there it seems.

> G1 GC issues
> ------------
>
>                 Key: HBASE-2039
>                 URL: https://issues.apache.org/jira/browse/HBASE-2039
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>
> Lets keep an issue where we report on g1 issues.  Lets keep list of crashes we see.
> I filed an issue up on bug parade.  Lets see if it becomes actual bug.  Below I note version of vm and the type of crash (Internal Error (nmethod.cpp:1981), pid=32319..... Its a 'fatal error').  It happens for me after 5-10 minutes when a loading test.  Same thing each time.
> G1 in 1.6 seems plain broke; crashes on use of stuff in concurrent utils package.
> Date Created: Thu Dec 10 13:33:04 MST 2009
> ..
> Synopsis:    Running G1 GC, crashes with " Internal Error (nmethod.cpp:1981), pid=32319..."
> Description:
>  FULL PRODUCT VERSION :
> java version "1.7.0-ea"
> Java(TM) SE Runtime Environment (build 1.7.0-ea-b77)
> Java HotSpot(TM) 64-Bit Server VM (build 17.0-b05, mixed mode)
> FULL OS VERSION :
> Fedora Core release 6 (Zod)
> EXTRA RELEVANT SYSTEM CONFIGURATION :
> Here are the JVM args:
> -XX:+HeapDumpOnOutOfMemoryError -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC

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