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From Jacek Laskowski <ja...@japila.pl>
Subject Re: How to enable core dump in spark
Date Thu, 16 Jun 2016 11:46:23 GMT
Hi,

Can you make sure that the ulimit settings are applied to the Spark
process? Is this Spark on YARN or Standalone?

Pozdrawiam,
Jacek Laskowski
----
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On Wed, Jun 1, 2016 at 7:55 PM, prateek arora
<prateek.arora2k6@gmail.com> wrote:
> Hi
>
> I am using cloudera to  setup spark 1.6.0  on ubuntu 14.04 .
>
> I set core dump limit to unlimited in all nodes .
>    Edit  /etc/security/limits.conf file and add  " * soft core unlimited "
> line.
>
> i rechecked  using :  $ ulimit -all
>
> core file size          (blocks, -c) unlimited
> data seg size           (kbytes, -d) unlimited
> scheduling priority             (-e) 0
> file size               (blocks, -f) unlimited
> pending signals                 (-i) 241204
> max locked memory       (kbytes, -l) 64
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 1024
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) 819200
> real-time priority              (-r) 0
> stack size              (kbytes, -s) 8192
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) 241204
> virtual memory          (kbytes, -v) unlimited
> file locks                      (-x) unlimited
>
> but when I am running my spark application with some third party native
> libraries . but it crashes some time and show error " Failed to write core
> dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c
> unlimited" before starting Java again " .
>
> Below are the log :
>
>  A fatal error has been detected by the Java Runtime Environment:
> #
> #  SIGSEGV (0xb) at pc=0x00007fd44b491fb9, pid=20458, tid=140549318547200
> #
> # JRE version: Java(TM) SE Runtime Environment (7.0_67-b01) (build
> 1.7.0_67-b01)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode
> linux-amd64 compressed oops)
> # Problematic frame:
> # V  [libjvm.so+0x650fb9]  jni_SetByteArrayRegion+0xa9
> #
> # Failed to write core dump. Core dumps have been disabled. To enable core
> dumping, try "ulimit -c unlimited" before starting Java again
> #
> # An error report file with more information is saved as:
> #
> /yarn/nm/usercache/master/appcache/application_1462930975871_0004/container_1462930975871_0004_01_000066/hs_err_pid20458.log
> #
> # If you would like to submit a bug report, please visit:
> #   http://bugreport.sun.com/bugreport/crash.jsp
> #
>
>
> so how can i enable core dump and save it some place ?
>
> Regards
> Prateek
>
>
>
> --
> View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/How-to-enable-core-dump-in-spark-tp27065.html
> Sent from the Apache Spark User List mailing list archive at Nabble.com.
>
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