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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2039) G1 GC issues
Date Fri, 19 Feb 2010 06:53:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835614#action_12835614
] 

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

I removed -XX:-ReduceInitialCardMarks from list of JVM args when running with G1 and got the
below pretty quickly.

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (nmethod.cpp:2013), pid=31341, tid=1093945664
#  Error: guarantee(cont_offset != 0,"unhandled implicit exception in compiled code")
#
# JRE version: 7.0-b83
# Java VM: Java HotSpot(TM) 64-Bit Server VM (17.0-b09 mixed mode linux-amd64 )
# An error report file with more information is saved as:
# /home/stack/0.20-head/hs_err_pid31341.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#

I reported it.

Adding back in the option, I seem to get the pretty-good stability again. 

i got the above option from this email: http://mail.openjdk.java.net/pipermail/hotspot-gc-use/2010-February/000512.html

> 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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