rabbitmq-queue-metrics.rb: Fix drain_time = 0 check

[andsens]

In

sensu-community-plugins/plugins/rabbitmq/rabbitmq-queue-metrics.rb

Line 95 in f807971

drain_time = 0 if drain_time.nan? # 0 rate with 0 messages is 0 time to drain

drain_time is set to 0 in case we divide by 0 in the previous line. Only nan? is used rather that infinite?, division by 0 yields Infinity which is a "number" so nan? is false. Using unless finite? fixes this.

[analytically]

Hi, please check if https://github.com/sensu-plugins/sensu-plugins-rabbitmq also has the same issue. This repository is deprecated.

[andsens]

Whoa. I gotta stop hitting the /tree/ URLs directly. Didn't even see the depreciation notice. Thank you!

[andsens]

FYI: The plugin in the new repo looks to be fine: https://github.com/sensu-plugins/sensu-plugins-rabbitmq/blob/b97d856d501a60ab4416af2d621a422feb7bee7d/bin/check-rabbitmq-queue-drain-time.rb#L101-L108