Monitoring replication latency for cluster replication

Learn how to monitor the replication latency of a Kafka cluster replication in Streams Messaging Manager (SMM). You can monitor average, maximum, and minimum replication latency of a cluster replication. You can also monitor the replication latency of a cluster replication graphically.

Replication latency is defined as the amount of time taken for a message to get replicated from the source cluster to the destination cluster. Replication latency is measured in milliseconds.

In the image, you can see the average replication latency for the CDFCluster to CDFClusterDR replication is 16.0 milliseconds. You can fetch the maximum or minimum replication latency for the replication by clicking the MAX or MIN button located above the cluster replication.

You can monitor the replication latency of a cluster replication graphically. SMM displays the Replication Latency graphs for each cluster in the cluster details. The following image shows the graph for replication latency for CDFCluster to CDFClusterDR replication: