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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (GEODE-3948) Improve CQ performance under flaky network conditions
Date Fri, 02 Mar 2018 01:11:00 GMT


ASF subversion and git services commented on GEODE-3948:

Commit 8ce536ec2daf94d7e086871ccf13dcb0cd2b915a in geode's branch refs/heads/develop from
[;h=8ce536e ]

GEODE-3948 Document subscription timeout multiplier

> Improve CQ performance under flaky network conditions
> -----------------------------------------------------
>                 Key: GEODE-3948
>                 URL:
>             Project: Geode
>          Issue Type: Improvement
>          Components: docs
>            Reporter: Galen O'Sullivan
>            Assignee: Dave Barnes
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.5.0
>          Time Spent: 3h
>  Remaining Estimate: 0h
> Client CQ connections occasionally stop receiving messages and become blocked indefinitely.

> This can be caused by a server that hangs or dies without sending a close message, or
by some firewalls. 
> The client already gets ping messages from the server, but currently ignores them. Let's
use those messages to detect a failed connection and close it.
> Probably the client should follow the same logic and send ping messages if it has sent
no acks for a while, so that the server can also detect and close a broken connection.
> The timeout could be specified as a number and time interval, the ping interval and the
number of missed pings after which to fail.

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