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YARN-1859. Fixed WebAppProxyServlet to correctly handle applications absent on the ResourceManager. Contributed by Zhijie Shen. 

svn merge --ignore-ancestry -c 1579866 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1579867 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Vinod Kumar Vavilapalli 2014-03-21 02:03:41 +00:00
parent 2f8d99f642
commit c7b39f75ba
3 changed files with 23 additions and 2 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -515,6 +515,9 @@ Release 2.4.0 - UNRELEASED
and thus avoid the failure of TestRMFailover#testRMWebAppRedirect. (Zhijie
Shen via vinodkv)
YARN-1859. Fixed WebAppProxyServlet to correctly handle applications absent
on the ResourceManager. (Zhijie Shen via vinodkv)
Release 2.3.1 - UNRELEASED
INCOMPATIBLE CHANGES

8
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/WebAppProxyServlet.java
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@ -50,6 +50,7 @@
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.util.Apps;
import org.apache.hadoop.yarn.util.StringHelper;
@ -274,7 +275,12 @@ protected void doGet(HttpServletRequest req, HttpServletResponse resp)
boolean checkUser = securityEnabled && (!userWasWarned || !userApproved);
ApplicationReport applicationReport = getApplicationReport(id);
ApplicationReport applicationReport = null;
try {
applicationReport = getApplicationReport(id);
} catch (ApplicationNotFoundException e) {
applicationReport = null;
}
if(applicationReport == null) {
LOG.warn(req.getRemoteUser()+" Attempting to access "+id+
" that was not found");

14
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/test/java/org/apache/hadoop/yarn/server/webproxy/TestWebAppProxyServlet.java
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@ -52,6 +52,7 @@
import org.apache.hadoop.yarn.api.records.YarnApplicationState;
import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationReportPBImpl;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
import org.apache.hadoop.yarn.webapp.util.WebAppUtils;
@ -149,11 +150,20 @@ public void testWebAppProxyServlet() throws Exception {
assertEquals(HttpURLConnection.HTTP_OK, proxyConn.getResponseCode());
assertTrue(isResponseCookiePresent(
proxyConn, "checked_application_0_0000", "true"));
// cannot found application
// cannot found application 1: null
appReportFetcher.answer = 1;
proxyConn = (HttpURLConnection) url.openConnection();
proxyConn.setRequestProperty("Cookie", "checked_application_0_0000=true");
proxyConn.connect();
assertEquals(HttpURLConnection.HTTP_NOT_FOUND,
proxyConn.getResponseCode());
assertFalse(isResponseCookiePresent(
proxyConn, "checked_application_0_0000", "true"));
// cannot found application 2: ApplicationNotFoundException
appReportFetcher.answer = 4;
proxyConn = (HttpURLConnection) url.openConnection();
proxyConn.setRequestProperty("Cookie", "checked_application_0_0000=true");
proxyConn.connect();
assertEquals(HttpURLConnection.HTTP_NOT_FOUND,
proxyConn.getResponseCode());
assertFalse(isResponseCookiePresent(
@ -340,6 +350,8 @@ public ApplicationReport getApplicationReport(ApplicationId appId)
ApplicationReport result = getDefaultApplicationReport(appId);
result.setYarnApplicationState(YarnApplicationState.KILLED);
return result;
} else if (answer == 4) {
throw new ApplicationNotFoundException("Application is not found");
}
return null;
}