etcd3 Alarms and Status Messages

8GB Storage Limit

etcd has a default storage limit set by the developers to ensure reliable recovery in failover scenarios. If a node were to grow too large, it would spend too long recovering its data from disk, and then when syncing to the other nodes, place too much load on them. The limit of 8GB makes recovery fast, effective, and avoids this issue.

Should you hit this limit, etcd3 will switch into read-only mode. The Browser will display the following message:

10571057

Alarm message for exceeding the storage limit

Clearing an etcd Alarm

If you have an alarm from exceeding the storage limit, and you have cleared space, you can disarm the alarm from the Data Browser by clicking on the Disarm All Alarms button.

To clear the alarm from etcdctl:

$ etcdctl alarm disarm

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