apache-kafkajmxapache-kafka-mirrormaker

Mirror maker2 metric clarification

With regard to the following metrics for Mirror maker I had a couple questions:

  1. record-count(number of records replicated source -> target):

    • Is this always a growing count per topic partition showing number of messages copied from source to target?
    • How frequently are these emitted by mirror maker and can that be configured?

  2. replication-latency-ms(time it takes records to propagate source->target):

    • How frequently are these emitted by mirror maker and can that be configured?
Solution

  • always a growing count per topic partition

    Yes. Until the JVM restarts.

    How frequently are these emitted

    Per record.

    No, it cannot be configured. MirrorMaker is open-source, by the way, and you should be able to check this.