Few parts of the code that prevents normal Synapse termination when running as
a web application
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Key: SYNAPSE-846
URL: https://issues.apache.org/jira/browse/SYNAPSE-846
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
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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