Setting Graceful Failover

Graceful failover is initiated via the POST /controller/startGracefulFailover HTTP method and URI.

HTTP method and URI

Initiates graceful failover for a specific server node. The server node is specified with the otpNode=[node@hostname] parameter.

POST /controller/startGracefulFailover

The failover progress can be tracked just like rebalance. After the data is persisted to disk and replicas are up-to-date, the node is put into the failed over state.

Syntax

POST /controller/startGracefulFailover
    otpNode=[node@hostname]

Be sure to update any scripts that implement failover.

Example

Curl request example:

curl -u Administrator:password -d 'otpNode=ns_1@10.5.2.118' \
http://10.5.2.54:8091/controller/startGracefulFailover