Zhijie Shen created YARN-1859:
---------------------------------
Summary: WebAppProxyServlet will throw
ApplicationNotFoundException if the app is no longer cached in RM
Key: YARN-1859
URL: https://issues.apache.org/jira/browse/YARN-1859
Project: Hadoop YARN
Issue Type: Bug
Reporter: Zhijie Shen
Assignee: Zhijie Shen
WebAppProxyServlet checks null to determine whether the application is not
found or not.
{code}
ApplicationReport applicationReport = getApplicationReport(id);
if(applicationReport == null) {
LOG.warn(req.getRemoteUser()+" Attempting to access "+id+
" that was not found");
{code}
However, WebAppProxyServlet calls AppReportFetcher, which consequently calls
ClientRMService. When application is not found, ClientRMService throws
ApplicationNotFoundException. Therefore, in WebAppProxyServlet, the following
logic to create the tracking url for a non-cached app will no longer be in use.
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