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Posted to issues@geode.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2019/04/02 23:19:00 UTC
[jira] [Commented] (GEODE-6585) tuning advice for
subscription-ack-interval has multiple problems
[ https://issues.apache.org/jira/browse/GEODE-6585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16808229#comment-16808229 ]
ASF subversion and git services commented on GEODE-6585:
--------------------------------------------------------
Commit 3e0ac36b6cbb0779629867de0b83fd893b6b432e in geode's branch refs/heads/develop from Bill Burcham
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=3e0ac36 ]
GEODE-6585: clarify subscription-ack-interval (#3388)
* GEODE-6585: clarify subscription-ack-interval
> tuning advice for subscription-ack-interval has multiple problems
> -----------------------------------------------------------------
>
> Key: GEODE-6585
> URL: https://issues.apache.org/jira/browse/GEODE-6585
> Project: Geode
> Issue Type: Bug
> Components: docs
> Reporter: Bill Burcham
> Assignee: Bill Burcham
> Priority: Major
> Time Spent: 40m
> Remaining Estimate: 0h
>
> On this page:
> [https://gemfire.docs.pivotal.io/97/geode/developing/events/limit_server_subscription_queue_size.html]
> the first paragraph under
> {code:java}
> subscription-ack-interval{code}
> has some inconsistencies:
> {quote}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.
> {quote}
> 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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