YARN-3269. Yarn.nodemanager.remote-app-log-dir could not be configured to fully qualified path. Contributed by Xuan Gong

(cherry picked from commit d81109e588493cef31e68508a3d671203bd23e12)

(cherry picked from commit f40f17489cacb22eccc4c9fad66a03abebf9426b)

hadoop-yarn-project/CHANGES.txt

@@ -67,6 +67,9 @@ Release 2.7.4 - UNRELEASED
     YARN-4355. NPE while processing localizer heartbeat. Contributed by
     Varun Saxena & Jonathan Hung
 
+    YARN-3269. Yarn.nodemanager.remote-app-log-dir could not be configured to
+    fully qualified path. (Xuan Gong via junping_du)
+
 Release 2.7.3 - 2016-08-25
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/AggregatedLogFormat.java

@@ -379,7 +379,7 @@ public class AggregatedLogFormat {
             userUgi.doAs(new PrivilegedExceptionAction<FSDataOutputStream>() {
               @Override
               public FSDataOutputStream run() throws Exception {
-                fc = FileContext.getFileContext(conf);
+                fc = FileContext.getFileContext(remoteAppLogFile.toUri(), conf);
                 fc.setUMask(APP_LOG_FILE_UMASK);
                 return fc.create(
                     remoteAppLogFile,
@@ -471,7 +471,8 @@ public class AggregatedLogFormat {
 
     public LogReader(Configuration conf, Path remoteAppLogFile)
         throws IOException {
-      FileContext fileContext = FileContext.getFileContext(conf);
+      FileContext fileContext =
+          FileContext.getFileContext(remoteAppLogFile.toUri(), conf);
       this.fsDataIStream = fileContext.open(remoteAppLogFile);
       reader =
           new TFile.Reader(this.fsDataIStream, fileContext.getFileStatus(

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/AppLogAggregatorImpl.java

@@ -304,7 +304,7 @@ public class AppLogAggregatorImpl implements AppLogAggregator {
         userUgi.doAs(new PrivilegedExceptionAction<Object>() {
           @Override
           public Object run() throws Exception {
-            FileSystem remoteFS = FileSystem.get(conf);
+            FileSystem remoteFS = remoteNodeLogFileForApp.getFileSystem(conf);
             if (remoteFS.exists(remoteNodeTmpLogFileForApp)) {
               if (rename) {
                 remoteFS.rename(remoteNodeTmpLogFileForApp, renamedPath);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/LogAggregationService.java

@@ -176,7 +176,7 @@ public class LogAggregationService extends AbstractService implements
   }
 
   protected FileSystem getFileSystem(Configuration conf) throws IOException {
-    return FileSystem.get(conf);
+    return this.remoteRootLogDir.getFileSystem(conf);
   }
 
   void verifyAndCreateRemoteLogDir(Configuration conf) {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java

@@ -1392,8 +1392,10 @@ public class TestLogAggregationService extends BaseContainerManagerTest {
     logAggregationContextWithInterval.setRolledLogsIncludePattern(".*");
     logAggregationContextWithInterval.setRolledLogsExcludePattern("std_final");
     this.conf.set(YarnConfiguration.NM_LOG_DIRS, localLogDir.getAbsolutePath());
+    //configure YarnConfiguration.NM_REMOTE_APP_LOG_DIR to
+    //have fully qualified path
     this.conf.set(YarnConfiguration.NM_REMOTE_APP_LOG_DIR,
-      this.remoteRootLogDir.getAbsolutePath());
+      "file://" + this.remoteRootLogDir.getAbsolutePath());
     this.conf.setLong(
       YarnConfiguration.NM_LOG_AGGREGATION_ROLL_MONITORING_INTERVAL_SECONDS,
       3600);