[jira] [Created] (SPARK-17286) The fetched data of Shuffle read stored in the ManagedBuffer, so its underlying data stored in off-memory or file?

["song fengfei (JIRA)" <ji...@apache.org>]

song fengfei created SPARK-17286:
------------------------------------

             Summary: The fetched data of Shuffle read  stored in the ManagedBuffer, so its underlying data stored in off-memory or file?
                 Key: SPARK-17286
                 URL: https://issues.apache.org/jira/browse/SPARK-17286
             Project: Spark
          Issue Type: Question
          Components: Block Manager, Input/Output, Shuffle
            Reporter: song fengfei


The fetched data of Shuffle read  stored in the ManagedBuffer, so its underlying data stored in off-memory or file? if stored in off-memory, Whether it is also managed by spark memorymanager ?  and if a map output is too big, placed it directly in the memory isn't very easily lead to oom? I did not understand this piece, hoping to get the answer here,thanks!



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org