WebAppContext should also be stopped and cleared
------------------------------------------------
Key: MAPREDUCE-3128
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3128
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.24.0
Reporter: Devaraj K
Assignee: Devaraj K
1. If listener stop method throws any exception then the webserver stop method
will not be called
{code}
public void stop() throws Exception {
listener.close();
webServer.stop();
}
{code}
2. also, WebAppContext stores all the context attributes, which does not get
cleared if only webServer is stopped.
so following calls are necessary to ensure clean and complete stop.
{code}
webAppContext.clearAttributes();
webAppContext.stop();
{code}
3. Also the WebAppContext display name can be the name passed to HttpServer
instance.
{code}
webAppContext.setDisplayName(name);
{code}
instead of
{code}
webAppContext.setDisplayName("WepAppsContext");
{code}
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