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From Piotr Kołaczkowski (JIRA) <j...@apache.org>
Subject [jira] [Created] (SPARK-6187) Report full executor exceptions to the driver
Date Thu, 05 Mar 2015 16:12:38 GMT
Piotr Kołaczkowski created SPARK-6187:
-----------------------------------------

             Summary: Report full executor exceptions to the driver
                 Key: SPARK-6187
                 URL: https://issues.apache.org/jira/browse/SPARK-6187
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 1.2.1
            Reporter: Piotr Kołaczkowski


If the task fails for some reason, the driver seems to report only the top-level exception,
without the cause(s). While it is possible to recover the full stacktrace from executor's
logs, it is quite annoying and would be better to just report the full stacktrace, with all
the causes to the driver application.

Example stacktrace I just got:
{noformat}
   org.apache.spark.SparkException: Job aborted due to stage failure: Task 5 in stage 0.0
failed 1 times, most recent failure: Lost task 5.0 in stage 0.0 (TID 5, localhost): java.lang.NoClassDefFoundError:
Could not initialize class org.apache.cassandra.db.Keyspace
    	at com.datastax.bdp.spark.writer.BulkTableWriter.writeSSTables(BulkTableWriter.scala:194)
    	at com.datastax.bdp.spark.writer.BulkTableWriter.write(BulkTableWriter.scala:223)
    	at com.datastax.bdp.spark.writer.BulkTableWriter$BulkSaveRDDFunctions$$anonfun$bulkSaveToCassandra$1.apply(BulkTableWriter.scala:280)
    	at com.datastax.bdp.spark.writer.BulkTableWriter$BulkSaveRDDFunctions$$anonfun$bulkSaveToCassandra$1.apply(BulkTableWriter.scala:280)
    	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:61)
    	at org.apache.spark.scheduler.Task.run(Task.scala:56)
    	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:200)
    	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:745)
{noformat}

As you see, this is not very informative.



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