You can enable email alerts to be raised when a significant error occurs on your Couchbase Server cluster. The email alert system works by sending email directly to a configured SMTP server. Each alert email is send to the list of configured email recipients.
The available settings are:
Enable email alerts
If checked, email alerts will be raised on the specific error enabled within the Available Alerts section of the configuration.
The hostname for the SMTP server that will be used to send the email.
The TCP/IP port to be used to communicate with the SMTP server. The default is the standard SMTP port 25.
For email servers that require a username and password to send email, the username for authentication.
For email servers that require a username and password to send email, the password for authentication.
The email address from which the email will be identified as being sent from. This email address should be one that is valid as a sender address for the SMTP server that you specify.
A list of the recipients of each alert message. You can specify more than one recipient by separating each address by a space, comma or semicolon.
You can enable individual alert messages that can be sent by using the series of checkboxes. The supported alerts are:
Node was auto-failovered
The sending node has been auto-failovered.
Maximum number of auto-failovered nodes was reached
The auto-failover system will stop auto-failover when the maximum number of spare nodes available has been reached.
Node wasn't auto-failovered as other nodes are down at the same time
Auto-failover does not take place if there are no spare nodes within the current cluster.
Node wasn't auto-failovered as the cluster was too small (less than 3 nodes)
You cannot support auto-failover with less than 3 nodes.
For more information on Auto-Failover, see Section 5.1.2, “Using Automatic Failover”.