If you deal with some kind of database, you should know by now that Redis is TEH AWESOME.
As part of the provided tools, the redis-cli binary is an invaluable tool to connect to a Redis database, via a TCP port or a UNIX socket (my preferred way).
Once connected to a Redis server via redis-cli you can send the MONITOR command. The clients then stops listening to regular inputs and starts to log every command received by the server, with a timestamp (seconds and microseconds).
Here is an output sample :
1353711173.069255 "MONITOR" 1353711204.631496 "SET" "users:1:login" "alfred" 1353711224.119123 "SET" "users:2:login" "tom" 1353711281.926336 "SADD" "users" "1" "2" 1353711297.878012 "SMEMBERS" "users"
The problem is that there doesn’t seem to be a built-in way to filter or save the command logs.
Redis being a good UNIX citizen acts like any other command regarding to input, outputs and pipes.
Let’s assume that the server is reachable on the default TCP port,
- To simply print a command log
echo "MONITOR" | redis-cli- To print a filtered command log (only « add to Sets »)
echo "MONITOR" | redis-cli | grep -i 'SADD'- To save a command log to a file
echo "MONITOR" | redis-cli > redis.log- To save a filtered command log to a file
echo "MONITOR" | redis-cli | grep -i 'SADD' > redis.log
NB : Redis is case insensitive for the commands it accepts.
