Imran Rashid created SPARK-24936:
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Summary: Better error message when trying a shuffle fetch over 2 GB
Key: SPARK-24936
URL: https://issues.apache.org/jira/browse/SPARK-24936
Project: Spark
Issue Type: Sub-task
Components: Spark Core
Affects Versions: 2.4.0
Reporter: Imran Rashid
After SPARK-24297, spark will try to fetch shuffle blocks to disk if their over
2GB. However, this will fail with an external shuffle service running < spark
2.2, with an unhelpful error message like:
{noformat}
18/07/26 07:15:02 WARN scheduler.TaskSetManager: Lost task 1.0 in stage 1.3
(TID 15, xyz.com, executor 2): FetchFailed(BlockManagerId(1
, xyz.com, 7337, None), shuffleId=0, mapId=1, reduceId=1, message=
org.apache.spark.shuffle.FetchFailedException:
java.lang.UnsupportedOperationException
at
org.apache.spark.network.server.StreamManager.openStream(StreamManager.java:60)
at
org.apache.spark.network.server.TransportRequestHandler.processStreamRequest(TransportRequestHandler.java:136)
...
{noformat}
We can't do anything to make the shuffle succeed, in this situation, but we
should fail with a better error message.
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