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https://issues.apache.org/jira/browse/FLINK-6130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15970975#comment-15970975
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ASF GitHub Bot commented on FLINK-6130:
---------------------------------------
Github user zhangminglei commented on a diff in the pull request:
https://github.com/apache/flink/pull/3726#discussion_r111731104
--- Diff:
flink-yarn/src/main/java/org/apache/flink/yarn/YarnFlinkApplicationMasterRunner.java
---
@@ -158,14 +160,16 @@ protected int runApplicationMaster(Configuration
config) {
jobManagerRunner.start();
LOG.debug("Job Manager Runner started");
+ // wait for resource manager to finish and
return a value for later to get
+ future = (Future<?>)
resourceManager.getTerminationFuture();
+
// ---- (5) start the web monitor
// TODO: add web monitor
}
+ Object object = future.value().get();
- // wait for resource manager to finish
- resourceManager.getTerminationFuture().get();
// everything started, we can wait until all is done or
the process is killed
- LOG.info("YARN Application Master finished");
+ LOG.info("YARN Application Master finished and the
result is " + object.toString());
--- End diff --
Thanks for review. I will update the code. Very appreciate it.
> Consider calling resourceManager#getTerminationFuture() with lock held
> ----------------------------------------------------------------------
>
> Key: FLINK-6130
> URL: https://issues.apache.org/jira/browse/FLINK-6130
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: mingleizhang
> Priority: Minor
>
> In YarnFlinkApplicationMasterRunner#runApplicationMaster() :
> {code}
> synchronized (lock) {
> LOG.info("Starting High Availability Services");
> ...
> }
> // wait for resource manager to finish
> resourceManager.getTerminationFuture().get();
> {code}
> resourceManager#getTerminationFuture() is called without holding lock.
> We should store the value returned from
> resourceManager#getTerminationFuture() inside the synchronized block.
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