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 On Mon, Sep 28, 2015 at 10:15 AM, Jakob Ericsson <jakob.erics...@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 > ... > ... > ... > > >
