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From Jacek Laskowski <ja...@japila.pl>
Subject Re: How to enable core dump in spark
Date Sat, 18 Jun 2016 16:11:47 GMT
What about the user of NodeManagers?

Pozdrawiam,
Jacek Laskowski
----
https://medium.com/@jaceklaskowski/
Mastering Apache Spark http://bit.ly/mastering-apache-spark
Follow me at https://twitter.com/jaceklaskowski


On Thu, Jun 16, 2016 at 10:51 PM, prateek arora
<prateek.arora2k6@gmail.com> wrote:
> hi
>
> I am using spark with yarn .  how can i  make sure that the ulimit settings
> are applied to the Spark process ?
>
> 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
>
> Regards
> Prateek
>
>
> On Thu, Jun 16, 2016 at 4:46 AM, Jacek Laskowski <jacek@japila.pl> wrote:
>>
>> 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
>> ----
>> https://medium.com/@jaceklaskowski/
>> Mastering Apache Spark http://bit.ly/mastering-apache-spark
>> Follow me at https://twitter.com/jaceklaskowski
>>
>>
>> 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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>> >
>
>

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