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YARN-4763. RMApps Page crashes with NPE. (Bibin A Chundatt via rohithsharmaks) 

(cherry picked from commit 19ee185907)
This commit is contained in:
Rohith Sharma K S 2016-03-05 12:38:15 +05:30 committed by Jason Lowe
parent d22a6a8b82
commit 34023ca418
1 changed files with 6 additions and 3 deletions
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9
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMAppsBlock.java
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@ -31,6 +31,7 @@ import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.api.records.YarnApplicationState;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
import org.apache.hadoop.yarn.server.webapp.AppsBlock;
import org.apache.hadoop.yarn.server.webapp.dao.AppInfo;
import org.apache.hadoop.yarn.util.ConverterUtils;
@ -95,9 +96,11 @@ public class RMAppsBlock extends AppsBlock {
}
String blacklistedNodesCount = "N/A";
Set<String> nodes = rm.getRMContext().getRMApps()
.get(appAttemptId.getApplicationId()).getAppAttempts()
.get(appAttemptId).getBlacklistedNodes();
RMAppAttempt appAttempt =
rm.getRMContext().getRMApps().get(appAttemptId.getApplicationId())
.getAppAttempts().get(appAttemptId);
Set<String> nodes =
null == appAttempt ? null : appAttempt.getBlacklistedNodes();
if (nodes != null) {
blacklistedNodesCount = String.valueOf(nodes.size());
}