cluster-bumpepoch.3valkey - Man Page

CLUSTER BUMPEPOCH

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.

One of the following:

• valkey-protocol(7) Bulk string reply: BUMPED if the epoch was incremented.
• valkey-protocol(7) Bulk string reply: STILL if the node already has the greatest configured epoch in the cluster.

O(1)

@admin @dangerous @slow

• Available since: 3.0.0

asking(3valkey), cluster(3valkey), cluster-addslots(3valkey), cluster-addslotsrange(3valkey), cluster-count-failure-reports(3valkey), cluster-countkeysinslot(3valkey), cluster-delslots(3valkey), cluster-delslotsrange(3valkey), cluster-failover(3valkey), cluster-flushslots(3valkey), cluster-forget(3valkey), cluster-getkeysinslot(3valkey), cluster-help(3valkey), cluster-info(3valkey), cluster-keyslot(3valkey), cluster-links(3valkey), cluster-meet(3valkey), cluster-myid(3valkey), cluster-myshardid(3valkey), cluster-nodes(3valkey), cluster-replicas(3valkey), cluster-replicate(3valkey), cluster-reset(3valkey), cluster-saveconfig(3valkey), cluster-set-config-epoch(3valkey), cluster-setslot(3valkey), cluster-shards(3valkey), cluster-slots(3valkey), readonly(3valkey), readwrite(3valkey)