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Posted to issues@spark.apache.org by "Imran Rashid (JIRA)" <ji...@apache.org> on 2018/05/16 18:23:00 UTC

[jira] [Created] (SPARK-24296) Support replicating blocks larger than 2 GB

Imran Rashid created SPARK-24296:
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             Summary: Support replicating blocks larger than 2 GB
                 Key: SPARK-24296
                 URL: https://issues.apache.org/jira/browse/SPARK-24296
             Project: Spark
          Issue Type: Sub-task
          Components: Block Manager, Spark Core
    Affects Versions: 2.3.0
            Reporter: Imran Rashid


Replicating blocks send the entire block data in one frame.  This results in a failure on the receiving end for blocks larger than 2GB.

We should change block replication to send the block data as a stream when the block is large (building on the network changes in SPARK-6237).  This can use the conf spark.maxRemoteBlockSizeFetchToMem to decided when to replicate as a stream, the same as we do for fetching shuffle blocks and fetching remote RDD blocks.



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