YARN-9529. Log correct cpu controller path on error while initializing CGroups. (Contributed by Jonathan Hung)

haibchen · haibchen · commit 597fa47ad125 · 2019-05-06T11:56:22.000-07:00
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/CgroupsLCEResourcesHandler.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/CgroupsLCEResourcesHandler.java
@@ -476,7 +476,7 @@ private void initializeControllerPaths() throws IOException {
         controllerPaths.put(CONTROLLER_CPU, controllerPath);
       } else {
         throw new IOException("Not able to enforce cpu weights; cannot write "
-            + "to cgroup at: " + controllerPath);
+            + "to cgroup at: " + f.getPath());
       }
     } else {
       throw new IOException("Not able to enforce cpu weights; cannot find "

Original file line number	Diff line number	Diff line change
`@@ -476,7 +476,7 @@ private void initializeControllerPaths() throws IOException {`
`476`	`476`	`controllerPaths.put(CONTROLLER_CPU, controllerPath);`
`477`	`477`	`} else {`
`478`	`478`	`throw new IOException("Not able to enforce cpu weights; cannot write "`
`479`		`- + "to cgroup at: " + controllerPath);`
	`479`	`+ + "to cgroup at: " + f.getPath());`
`480`	`480`	`}`
`481`	`481`	`} else {`
`482`	`482`	`throw new IOException("Not able to enforce cpu weights; cannot find "`