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kill process for memory leak

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Last updated at 2020-08-03Posted at 2020-08-03

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rails batch

get process info that maybe leaked memory

pinfo=`ps aux --sort -rss| grep [r]uby | head -1 | tr -s ' ' | cut -d ' ' -f2,6`
echo $pinfo

compare and graceful kill

pid=`echo -n $pinfo | cut -d ' ' -f 1`
mem=`echo -n $pinfo | cut -d ' ' -f 2`

threshold=20000
if [ "$mem" -ge "$threshold" ];then 
    echo "Memory leaked!"; 
    kill -s USR1 $pid; 
fi

purge-memory-leak-process.sh

#!/bin/bash

# 200MiB
threshold=209715200

pinfo=`ps aux --sort -rss| grep [r]uby | head -1 | tr -s ' ' | cut -d ' ' -f2,6`
if test -z "$pinfo";then 
    echo "not found";
    exit; 
fi

pid=`echo -n $pinfo | cut -d ' ' -f 1`
mem=`echo -n $pinfo | cut -d ' ' -f 2`

if [ "$mem" -ge "$threshold" ];then 
    echo "[$pid]: Memory leaked!"; 
    kill -s USR1 $pid; 
fi

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