CLUSTER BUMPEPOCH
Syntax
CLUSTER BUMPEPOCH
- Available since:
- 3.0.0
- Time complexity:
- O(1)
- ACL categories:
-
@admin
,@slow
,@dangerous
,
Advances the cluster config epoch.
The CLUSTER BUMPEPOCH
command triggers an increment to the cluster's config epoch from the connected node. The epoch will be incremented if the node's config epoch is zero, or if it is less than the cluster's greatest epoch.
Note: config epoch management is performed internally by the cluster, and relies on obtaining a consensus of nodes. The CLUSTER BUMPEPOCH
attempts to increment the config epoch WITHOUT getting the consensus, so using it may violate the "last failover wins" rule. Use it with caution.
RESP2/RESP3 Reply
One of the following:
- Bulk string reply:
BUMPED
if the epoch was incremented. - Bulk string reply:
STILL
if the node already has the greatest configured epoch in the cluster.