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From "Trygve Sanne Hardersen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (GERONIMO-5668) Use fewer acceptor threads for Jetty
Date Mon, 01 Nov 2010 10:15:29 GMT

    [ https://issues.apache.org/jira/browse/GERONIMO-5668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12926906#action_12926906
] 

Trygve Sanne Hardersen commented on GERONIMO-5668:
--------------------------------------------------

I have looked a bit more at this and have filed a bug for Jetty, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=329180.
This is based on Shawn's work, many thanks.

I'll watch the Jetty bug and let you know if it gets fixed at the Jetty side so that Geronimo
can be updated to use a newer Jetty version. I have a patch ready for running Geronimo against
Jetty trunk.

> Use fewer acceptor threads for Jetty
> ------------------------------------
>
>                 Key: GERONIMO-5668
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-5668
>             Project: Geronimo
>          Issue Type: Improvement
>      Security Level: public(Regular issues) 
>          Components: Jetty
>    Affects Versions: 2.2.1
>         Environment: Only tested on OS X 1.6 with Java 1.6
>            Reporter: Trygve Sanne Hardersen
>         Attachments: geronimo-2.2-1027647-jetty-acceptors.patch
>
>
> Geronimo applies the maxThreads parameter as the number of acceptor threads in Jetty,
with a default value of 50. With newer versions (7.2.0) of Jetty this gives the following
warning during startup:
> # Acceptors should be <=2*availableProcessors
> Server shutdowns are also very slow, it takes about 1 second to stop each acceptor thread.
> The attached patch sets the number of acceptor threads to 2 per connector (HTTP, HTTPS
and AJP), and exposes this and the acceptor queue size (50) as a parameter in config-substitutions.properties.

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