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The following commit(s) were added to refs/heads/trunk by this push:
new 2044967 YARN-9246 NPE when executing a command yarn node -status or
-states without additional arguments. Contributed by Masahiro Tanaka
2044967 is described below
commit 2044967e7581f00c3f6378860426a69078faf694
Author: Suma Shivaprasad <[email protected]>
AuthorDate: Tue Feb 5 09:39:38 2019 -0800
YARN-9246 NPE when executing a command yarn node -status or -states without
additional arguments. Contributed by Masahiro Tanaka
---
.../src/main/java/org/apache/hadoop/yarn/client/cli/YarnCLI.java | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/YarnCLI.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/YarnCLI.java
index 0747b63..c1e02d5 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/YarnCLI.java
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/YarnCLI.java
@@ -72,6 +72,10 @@ public abstract class YarnCLI extends Configured implements
Tool {
}
public void stop() {
- this.client.stop();
+ // this.client may be null when it is called before
+ // invoking `createAndStartYarnClient`
+ if (this.client != null) {
+ this.client.stop();
+ }
}
}
\ No newline at end of file
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