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From "Aidan Skinner (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Updated: (QPID-1119) [Java] Timeout on consumer creation with large queues
Date Tue, 09 Sep 2008 16:15:44 GMT

     [ https://issues.apache.org/jira/browse/QPID-1119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Aidan Skinner updated QPID-1119:

    Status: Open  (was: Ready To Review)

Now there is a test, but it's been disabled. 

> [Java] Timeout on consumer creation with large queues
> -----------------------------------------------------
>                 Key: QPID-1119
>                 URL: https://issues.apache.org/jira/browse/QPID-1119
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Client
>    Affects Versions: M2.1
>            Reporter: Marnie McCormack
>            Assignee: Aidan Skinner
>             Fix For: M4
> We've seen consumer timeout ("Error registering consumer: org.apache.qpid.AMQTimeoutException:
Server did not respond in a timely fashion"). This was seen with volume testing, and 45,000
messages in the queue the consumer was attempting to connect to.
> The issue there is that for every subscription request it needs to go over the whole
queue, to work out which messages should go to which subscriber. The broker runs with number
of threads == number of cores, so if you have lots of consumers they will queue up behind
one another to get processed. One solution is to stagger the consumer starts on the appication
side, but we can also expose the connection timeout for configuration so that applications
can use this.
> Thus need to create a configurable timeout for sync responses. Rob Godfrey can advise
if further info required.

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