[jira] [Created] (TEZ-1543) Shuffle Errors on heavy load

["Rajesh Balamohan (JIRA)" <ji...@apache.org>]

Rajesh Balamohan created TEZ-1543:
-------------------------------------

             Summary: Shuffle Errors on heavy load
                 Key: TEZ-1543
                 URL: https://issues.apache.org/jira/browse/TEZ-1543
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Rajesh Balamohan


org.apache.tez.runtime.library.common.shuffle.impl.Shuffle: ShuffleRunner failed with error
org.apache.tez.runtime.library.common.shuffle.impl.Shuffle$ShuffleError: error in shuffle in fetcher [initialmap] #13
        at org.apache.tez.runtime.library.common.shuffle.impl.Shuffle$RunShuffleCallable.call(Shuffle.java:336)
        at org.apache.tez.runtime.library.common.shuffle.impl.Shuffle$RunShuffleCallable.call(Shuffle.java:318)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
        at org.apache.hadoop.io.WritableUtils.readVLong(WritableUtils.java:308)
        at org.apache.hadoop.io.WritableUtils.readVInt(WritableUtils.java:329)
        at org.apache.hadoop.io.WritableUtils.readStringSafely(WritableUtils.java:475)
        at org.apache.tez.runtime.library.common.shuffle.impl.ShuffleHeader.readFields(ShuffleHeader.java:82)
        at org.apache.tez.runtime.library.common.shuffle.impl.Fetcher.copyMapOutput(Fetcher.java:350)
        at org.apache.tez.runtime.library.common.shuffle.impl.Fetcher.copyFromHost(Fetcher.java:294)
        at org.apache.tez.runtime.library.common.shuffle.impl.Fetcher.run(Fetcher.java:160)



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