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  1. Nuxeo Platform
  2. NXP-24512

Extend the stream.sh to track consumer latencies

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 9.10-HF03, 10.1
    • Component/s: Streams

      Description

      The idea is to have a command to track periodically the latencies of consumers.
      This latencies information can be replicated in a different datacenter and used to position the consumers in case of failover.

      The latencies information are send into a Log, (for instance it can be named _consumer_latencies)

      The latency is expressed

      • with a key composed of:
        • the consumer group
        • log name
        • partition
      • and a value composed of:
        • the date where the latency has been measured
        • the timestamp of the last processed record
        • eventually the key of the last processed record

      This way another command can use this log to restore the consumer positions at a given time.

      The rational for the composed key is to use the Kafka log compaction feature so the _consumer_latencies log can stay compact over time and the command to restore the position can quickly get the latest latency.

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