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From Till Rohrmann <trohrm...@apache.org>
Subject Re: JVM core dump running Flink streaming
Date Mon, 28 Sep 2015 09:19:22 GMT
Hi Jakob,

you can control the used garbage collector by specifying the env.java.opts
configuration parameter in your flink-conf.yaml. Here you can basically
specify all the JVM options which will be given to the JVMs. Thus, in your
case you could try the following settings: env.java.opts:
-XX:+UseConcMarkSweepGC.

Cheers,
Till
‚Äč

On Mon, Sep 28, 2015 at 10:15 AM, Jakob Ericsson <jakob.ericsson@gmail.com>
wrote:

> Hi,
>
> I'm testing Flink streaming but seems to have some problems with jvm core
> dumps.
> I haven't really looked at the heap dump yet.
> It seems to be related to the G1 GC.
>
> If I want to go back to CMS-GC, do you have any preferred settings?
>
>
>
>
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  SIGSEGV (0xb) at pc=0x00007fa281df900d, pid=36541, tid=140335655700224
> #
> # JRE version: Java(TM) SE Runtime Environment (8.0_45-b14) (build
> 1.8.0_45-b14)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.45-b02 mixed mode
> linux-amd64 compressed oops)
> # Problematic frame:
> # V  [libjvm.so+0x5b900d]
>  G1ParScanThreadState::copy_to_survivor_space(oopDesc*)+0x3d
> #
> # Failed to write core dump. Core dumps have been disabled. To enable core
> dumping, try "ulimit -c unlimited" before starting Java again
> #
> # If you would like to submit a bug report, please visit:
> #   http://bugreport.java.com/bugreport/crash.jsp
> #
>
> ---------------  T H R E A D  ---------------
>
> Current thread (0x00007fa26c00f800):  GCTaskThread [stack:
> 0x00007fa270d84000,0x00007fa270e85000] [id=36559]
>
> siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr:
> 0x0000000000000008
>
> Registers:
> RAX=0x00007fa2827b03b0, RBX=0x00007fa2827b03a0, RCX=0x0000000000000003,
> RDX=0x0000000000000001
> RSP=0x00007fa270e83490, RBP=0x00007fa270e83520, RSI=0x00000000dc6e5530,
> RDI=0x0000000000000000
> R8 =0x00000000dc6e5530, R9 =0x00007fa282929ba7, R10=0x00000000c49742a8,
> R11=0x00007fa2822b2e20
> R12=0x000000008c579484, R13=0x00000000dc6e5530, R14=0x00007fa270e83780,
> R15=0x00007fa270e83aa0
> RIP=0x00007fa281df900d, EFLAGS=0x0000000000010246,
> CSGSFS=0x0000000000000033, ERR=0x0000000000000004
>   TRAPNO=0x000000000000000e
>
> Top of Stack: (sp=0x00007fa270e83490)
> 0x00007fa270e83490:   00007fa270e834f0 00000000c49742c0
> 0x00007fa270e834a0:   00007fa270e83780 000000008210a22f
> 0x00007fa270e834b0:   000000000000000b 00007fa26c333110
> 0x00007fa270e834c0:   0000000700000001 0000000000000001
> 0x00007fa270e834d0:   000000000257e760 000000000257e760
> 0x00007fa270e834e0:   00007fa270e83790 00007fa23c37da70
> 0x00007fa270e834f0:   00007fa270e83520 00007fa2827b03a0
> 0x00007fa270e83500:   000000008c579484 00007fa26c0f7e20
> 0x00007fa270e83510:   00007fa270e83780 00007fa270e83aa0
> ...
> ...
> ...
>
>
>

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