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ASF GitHub Bot commented on FLINK-6130: --------------------------------------- Github user tzulitai commented on a diff in the pull request: https://github.com/apache/flink/pull/3726#discussion_r111730519 --- 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 -- I would use a log message formatter here: `LOG.info("YARN Application Master finished and the result is {}", object);` > 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. -- This message was sent by Atlassian JIRA (v6.3.15#6346)