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From "Hiranya Jayathilaka (JIRA)" <>
Subject [jira] [Resolved] (SYNAPSE-846) Few parts of the code that prevents normal Synapse termination when running as a web application
Date Mon, 15 Jul 2013 21:04:48 GMT


Hiranya Jayathilaka resolved SYNAPSE-846.

    Resolution: Fixed

This should be fixed now. Thanks Lukas for the contribution.
> Few parts of the code that prevents normal Synapse termination when running as a web
> ------------------------------------------------------------------------------------------------
>                 Key: SYNAPSE-846
>                 URL:
>             Project: Synapse
>          Issue Type: Bug
>    Affects Versions: 2.1
>         Environment: Synapse is acting as a web application inside web container (Tomcat),
not tested as stand alone (but may be affected also).
>            Reporter: Lukas Valenta
>            Assignee: Hiranya Jayathilaka
>            Priority: Minor
> When using synapse as a web application, I noticed that it is unable to stop (stop web
application) sucessfully. It leaves many threads running, which prevents web application and
Tomcat itself from shutdown. I tracked those threads and found parts of code which "creates
them but do not stop them". I created my own patch for those code parts and now application
stops correctly. I would be pleased if those changes appears in some future version so I will
have no need to hold "my own set of patches synapse and axis 2 classes". Changes to source
codes of Synapse 2.1:
> - org.apache.synapse.core.axis2.SynapseStartUpServlet:80 (after serverManager.stop();):
>   serverManager.shutdown();    // this must be called also
> - org.apache.synapse.transport.nhttp.HttpCoreNIOListener in method stop(), just before
the end of try-catch block:
>             mbeanSupport.unregister();
>             metrics.destroy();
> - org.apache.synapse.endpoints.AbstractEndpoint in method destroy() before "this.initialized
= false":
>         if (metricsMBean != null) {
>             metricsMBean.destroy();
>             metricsMBean = null;
>         }
> - org.apache.axis2.transport.jms.ServiceTaskManager (I know this belongs to Axis2, but
it is the same problem):
>   - in the method stop() after the initial logging:
>         if (workerPool != null) {
>             try {
>                 workerPool.shutdown(1000);
>             } catch (InterruptedException e) {
>                 log.error("Stopping WorkerPool failed", e);
>             }
>         }
>   - in the method stop() after "sharedConnection.stop();":
>                 sharedConnection.close();
> Thank you

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