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From "Trygve Sanne Hardersen (JIRA)" <j...@apache.org>
Subject [jira] Created: (GERONIMO-5668) Use fewer acceptor threads for Jetty
Date Thu, 28 Oct 2010 09:06:05 GMT
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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