Created
March 15, 2015 15:50
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eraseredis.sh - small script to erase redis without making it unresponsive and causing failover
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#!/bin/bash | |
CNT=10 | |
SLEEP=10 | |
function show_help { | |
echo "Usage: $0 -a auth_token -h host [-c count_per_iteration] [-s sleep_after_iteration]" | |
} | |
while getopts "h:c:s:a:?" opt; do | |
case "$opt" in | |
\?) | |
show_help | |
exit 0 | |
;; | |
h) HOST=$OPTARG | |
;; | |
c) CNT=$OPTARG | |
;; | |
s) SLEEP=$OPTARG | |
;; | |
a) AUTH=$OPTARG | |
;; | |
esac | |
done | |
if [ "zzz$HOST" == "zzz" ] || [ "zzz$AUTH" == "zzz" ] | |
then | |
show_help | |
exit 1 | |
fi | |
echo "Erasing host $HOST, $CNT keys per iteration with $SLEEP second pauses" | |
REDIS_CMD="redis-cli -h $HOST -a $AUTH" | |
remaining=`$REDIS_CMD DBSIZE` | |
#prev_remaining=$remaining | |
while [[ "$remaining" != "$prev_remaining" ]]; do | |
echo "keys remaining... $remaining" | |
$REDIS_CMD scan 0 count $CNT | tail -n +2 | xargs -n 100 -d "\n" $REDIS_CMD DEL > /dev/null | |
prev_remaining=$remaining | |
remaining=`$REDIS_CMD DBSIZE` | |
if [[ "$remaining" != "$prev_remaining" ]]; then echo "...";sleep $SLEEP; fi | |
done | |
echo "finished. keys remaining: $remaining" |
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