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mzupan / nagios-plugin-mongodb

A Nagios plugin to check the status of MongoDB
BSD 2-Clause "Simplified" License
346 stars 274 forks source link

replset_state should check the state of all hosts #214

Open BastianVoigt opened 7 years ago

BastianVoigt commented 7 years ago

Recently we had a live fuckup where one of the MongoDB hosts (mongodb-1) changed its IP address and got kicked out of the replica set because it was hardwired there with its old IP address. MongoDB-1 became PRIMARY on its own, while mongodb-2 and -3 elected a new PRIMARY and continued operation normally.

rs.state() on mongodb-1 showed no problems. rs.state() on mongodb-2 showed mongodb-1 as unreachable / not healthy.

However, the icinga check "replset_state" was green on all three hosts although there was a big fuckup. So I think replset_state check should consider the state of all hosts in the cluster, not just the "mystate".

BastianVoigt commented 7 years ago

Created a pull request #215