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Error when starting warden "/proc/sys/kernel/core_pattern: Permission denied"

Question asked by sa125 on Jul 14, 2012
Latest reply on Jul 15, 2012 by yufeldman
I'm setting up an ubuntu test cluster with M3 and [following this walk through][1].

However, I'm getting the following error when trying to start the warden service:

    root@Hadoop01:~# /etc/init.d/mapr-warden status
    net.core.somaxconn = 20000
    /opt/mapr/logs/warden.pid exists with pid 4677 but no WARDEN.
    root@Hadoop01:~# pgrep warden
    root@Hadoop01:~# /etc/init.d/mapr-warden start
    net.core.somaxconn = 20000
    /etc/init.d/mapr-warden: line 143: /proc/sys/kernel/core_pattern: Permission denied
    Starting WARDEN, logging to /opt/mapr/logs/warden.log
    For diagnostics look at /opt/mapr/logs/ for createsystemvolumes.log, warden.log and configured services log files
    root@Hadoop01:~# vim /proc/sys/kernel/core_pattern +143
    root@Hadoop01:~# ll /proc/sys/kernel/core_pattern
    -rw-r--r-- 1 root root 0 Jul 15 16:05 /proc/sys/kernel/core_pattern

I checked the `warden.log` file and discovered that I'm lacking memory and therefore some services couldn't be started. Nonetheless, this is a permission issue. Any idea what's up?

  [1]: http://mapr.com/doc/display/MapR/M3%20-%20Ubuntu

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