Redis

Redis : Delete Keys by checking/matching expiry time remaining.

Redis

Sometimes we need to remove specific group of keys which are created earlier or have a specific expiry time remaining. You can simply delete Redis Key-value pairs by checking their expiry time remaining and running this simple script on your console:

redis-cli -h <hostname> keys  “*” | while read LINE ; do TTL=`redis-cli -h <hostname> ttl $LINE`; if [ $TTL -ge  <expiry-time-need-to-check> ]; then echo “del $LINE”; RES=`redis-cli -h <hostname>  del $LINE`; fi; done;

Example:

# redis-cli -h 127.0.0.1 keys  “*” | while read LINE ; do TTL=`redis-cli -h 127.0.0.1 ttl $LINE`; if [ $TTL -ge  40000 ]; then echo “del $LINE”; RES=`redis-cli -h 127.0.0.1 del $LINE`; fi; done;

You can also modify/use this script to delete PERSIST Keys(Non-Expiring Keys), which never get removed automatically.

# redis-cli -h 127.0.0.1 keys  “*” | while read LINE ; do TTL=`redis-cli -h 127.0.0.1 ttl $LINE`; if [ $TTL -eq  -1 ]; then echo “del $LINE”; RES=`redis-cli -h 127.0.0.1 del $LINE`; fi; done;

Thanks

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