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  1. Geode
  2. GEODE-6585

tuning advice for subscription-ack-interval has multiple problems

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.10.0
    • Component/s: docs
    • Labels:
      None

      Description

      On this page:

      https://gemfire.docs.pivotal.io/97/geode/developing/events/limit_server_subscription_queue_size.html

      the first paragraph under

      subscription-ack-interval

      has some inconsistencies:

      Optional: Increase the frequency of queue synchronization. This only applies to configurations where server redundancy is used for high availability. Increase the client’s pool configuration, subscription-ack-interval. The client periodically sends a batch acknowledgment of messages to the server, rather than acknowledging each message individually. A lower setting speeds message delivery and generally reduces traffic between the server and client. A higher setting helps contain server queue size.

      Third sentence: “Increase…subscription-ack-interval“—this seems backward to me. It certainly disagrees with the first sentence since the interval is inversely proportional to the frequency.

      Fifth sentence: “…and generally reduces traffic…“—is that true? I doubt it.

      Last sentence: “A higher setting helps contain server queue size.“—again backward.

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              • Assignee:
                burcham Bill Burcham
                Reporter:
                burcham Bill Burcham
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