Thursday, 23 October 2014

Core file administration


This is the defaults:
     global core file pattern:
     global core file content: default
     init core file pattern: core
     init core file content: default
     global core dumps: disabled
     per-process core dumps: enabled
     global setid core dumps: disabled
     per-process setid core dumps: disabled
     global core dump logging: disabled

This is what I like to set it to:
     global core file pattern: /var/cores/core_%n_%f_%u_%g_%t_%p
     global core file content: default
     init core file pattern: core
     init core file content: default
     global core dumps: enabled
     per-process core dumps: disabled
     global setid core dumps: enabled
     per-process setid core dumps: disabled
     global core dump logging: enabled
Reasoning:
1. I don't like my core files all over the place
2. Easier to find and clean up.
3. I only enable per-process core file dump when a user needs it (on a zone)

VALUE HOW TO SET IT
global core file pattern Specifies name and location of the global core files (A leading "/" specifes an absolute path) coreadm -g /var/cores/core_%n_%f_%u_%g_%t_%p
global core file content Defines content of global files
init core file pattern Specifies name and location of the global per-process files (No leading "/" makes it relative to working directory) coreadm -p core
init core file content Defines content of per-process files
global core dumps Enable/disables global core-dumps coreadm -e global
per-process core dumps Enable/disables per-process core-dumps coreadm -d process
global setid core dumps Enable/disables global setid core-dumps coreadm -e global-setid
per-process setid core dumps Enable/disables per-process setid core-dumps coreadm -d proc-setid
global core dump logging Enable/disables logging to syslog coreadm -e log

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