Support check of total keys per database in check_redis?

[mindbat]

I'm monitoring a redis server with 5 different db's. They've each got different ranges for the number of keys that would be considered normal for that db.

I'd like to be able to monitor the number of keys in each db separately. It looks like redis returns this data via INFO, and it's captured in the plugin while calculating the total_keys amount.

Any chance the plugin could be altered to support checking the number of keys used in a single database?

[willixix]

could you explain more and post output from the plugin (with -A so all returned data can be seen) pointing which exact data you want to set threshold on?

[willixix]

I'm going through open questions/issues again. Single keys are indeed captured like this:
db15_keys=73043995 db15_expires=64177 db0_keys=26

You can set threshold specifically on db0_keys for above for example. And if you want threshold for all databases you can use regex pattern matching, so this would be something like:
--option=PATTERN:db*_keys,WARN:..,CRIT:...

[mindbat]

thanks, willixix, i'll give that a shot!