Listing keys used in a memcached server
Posted on Octubre 14th, 2008 por gaizka
Maybe this is of no use to anybody, but it was useful to me while developing some caching code, so I hope it can be useful to someone else.
This is a script will list every key that’s being used in a memcached server.
I haven’t tried it in a production server, and you sholud be careful doing it. It looks that some of the commands are blocking and can affect the performance for the rest of the clients.
#!/bin/bash # Script to see which keys are stored in a memcached server # Warning: stats command is blocking, so be careful if you want to use this in production SERVER=localhost PORT=11211 stats=`echo -e "stats items \n quit" | nc $SERVER $PORT` keys=`echo "$stats" | egrep "STAT.*number" | cut -d ':' -f 2 | xargs echo` commands="" for key in $keys ; do commands="stats cachedump $key 100 \n $commands" done echo -e "$commands quit " | nc $SERVER $PORT | grep ITEM
Hope that helps anybody.
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