如何配置Hudson linux从属服务器以生成核心文件？

Question

I've seeing occasional segmentation faults in glibc on several different Fedora Core 9 Hudson Slaves. I've attempted to configure each slave to generate core files and place them in /corefiles, but have had no luck.

Here is what I've done on each linux slave:

1) Create a corefile storage location
sudo install -m 1777 -d /corefiles

2) Directed the corefiles to the storage location by adding the following to /etc/sysctl.conf
kernel.core_pattern = /corefiles/core.%e-PID:%p-%t-signal_%s-%h

3) Enabled unlimited corefiles for all users by adding the following to /etc/profile
ulimit -c unlimited

Is there some additional Linux magic required or do I need to do something to the Hudson slave or JVM?

Thanks for the help

Answer 1

Did you reboot or run "sysctl -p" (as root) after editing /etc/sysctl.conf ?

Also, if i remember correctly, ulimit values are per user and calling ulimit wont survive a boot. You should add this to /etc/security/limits.conf:

*  soft  core  unlimited

Or call ulimit in the script that starts hudson if you don't wont everyone to produce coredumps.

Answer 2

I figured this out :-).

The issue is Hudson invokes the bash shell as a non-interactive shell, which will bypass the ulimit setting in /etc/profile . The solution is to add the BASH_ENV environmental variable tothe Hudson slaves and set the value to a file with ulimit -c unlimited set.