36 lines
871 B
Bash
Executable File
36 lines
871 B
Bash
Executable File
#!/usr/bin/env bash -e
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#
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# Reports Linux OOM Killer activity
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#
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cd "$(dirname "$0")"
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# shellcheck source=scripts/oom-score-adj.sh
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source oom-score-adj.sh
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# shellcheck source=scripts/configure-metrics.sh
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source configure-metrics.sh
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[[ $(uname) = Linux ]] || exit 0
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syslog=/var/log/syslog
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[[ -r $syslog ]] || {
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echo Unable to read $syslog
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exit 1
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}
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# Adjust OOM score to reduce the chance that this script will be killed
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# during an Out of Memory event since the purpose of this script is to
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# report such events
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oom_score_adj "self" -500
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while read -r victim; do
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echo "Out of memory event detected, $victim killed"
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./metrics-write-datapoint.sh "oom-killer,victim=$victim,hostname=$HOSTNAME killed=1"
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done < <( \
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tail --follow=name --retry -n0 $syslog \
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| sed --unbuffered -n 's/^.* Out of memory: Kill process [1-9][0-9]* (\([^)]*\)) .*/\1/p' \
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)
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exit 1
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