74 lines
1.9 KiB
Bash
Executable file
74 lines
1.9 KiB
Bash
Executable file
#!/bin/sh -e
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# Script to save core files, to be run from post_crash_dump_hook
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# Written by Markus Armbruster, 2008-2012
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# This script is in the public domain.
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# Use: edit configuration variables below to taste, then set
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# post_crash_dump_hook = /wherever/savecore
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# in econfig. Make sure to run the server with core dumps enabled
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# (ulimit -c unlimited).
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# Rules when running as post_crash_dump_hook:
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# Data directory is working directory.
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# stdin, stdout, stderr are redirected to /dev/null, except in debug
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# mode
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# Configuration
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# How your system names core files
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#
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# This is a pattern rather than a name, because modern kernels can put
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# fancy stuff in the name we can't always predict. Modern user space
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# can squirrel away core dumps in fancy places; you may need to switch
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# that off for this insufficiently fancy script to work.
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core_pattern=core.*
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#core_pattern=emp_server.core
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#core_pattern=core
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# Where to save core dumps
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#
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# If you leave cores in the data directory, backup scripts may pick
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# them up, which is probably not what you want.
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core_dir=../core-dumps
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# Minimum free disk space for saving core dumps, in KiB
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space_low=102400
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# Whom to send mail (leave empty to not send any)
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privlog=
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# Program to send mail
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mailx=mailx
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# End of configuration
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saved=
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core_name=
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alert_deity ()
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{
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local msg
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if [ "$saved" ]
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then msg="Core dump $saved_core saved."
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elif [ "$core_name" ]
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then msg="Could not save core dump $core_name."
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else msg="Could not find core dump to save."
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fi
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echo "$msg" | $mailx -s "emp_server dumped core in $PWD" "$privlog"
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}
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test -n "$privlog" && trap 'alert_deity' EXIT
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core_name=`ls -td $core_pattern 2>/dev/null | head -n 1`
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test -n "$core_name"
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test -r "$core_name"
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tstamp=`/bin/date +%Y-%m-%d-%H:%M`
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saved_core=$core_dir/core-$tstamp
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mkdir -p $core_dir
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if [ `df -kP $core_dir | awk 'NR!=1 { print $4 }'` -lt "$space_low" ]
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then rm -f "$core_name"; exit
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fi
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mv -f "$core_name" $saved_core
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saved=y
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