[jira] [Created] (SPARK-9439) ExternalShuffleService should be robust to NodeManager restarts in yarn

["Imran Rashid (JIRA)" <ji...@apache.org>]

Imran Rashid created SPARK-9439:
-----------------------------------

             Summary: ExternalShuffleService should be robust to NodeManager restarts in yarn
                 Key: SPARK-9439
                 URL: https://issues.apache.org/jira/browse/SPARK-9439
             Project: Spark
          Issue Type: Bug
          Components: Shuffle
    Affects Versions: 1.4.1
            Reporter: Imran Rashid
            Priority: Critical


Yarn applications should be robust to NodeManager restarts in general.   However, if you run with the external shuffle service enabled, after a NM restart, you will observe failures like:

{noformat}
2015-07-22 18:30:18,212 ERROR org.apache.spark.network.server.TransportRequestHandler: Error while invoking RpcHandler#receive() on RPC id 5405054848584757735
java.lang.RuntimeException: Executor is not registered (appId=application_1437612356649_0008, execId=73)
        at org.apache.spark.network.shuffle.ExternalShuffleBlockManager.getBlockData(ExternalShuffleBlockManager.java:105)
...
{noformat}

This is because when the NM restarts (and restarts the ExternalShuffleService), it doesn't call {{ExternalShuffleBlockResolver#registerExecutor}}



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