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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-13845) Driver OOM after few days when running streaming
Date Sun, 13 Mar 2016 09:46:34 GMT

    [ https://issues.apache.org/jira/browse/SPARK-13845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15192259#comment-15192259
] 

Sean Owen commented on SPARK-13845:
-----------------------------------

[~jeanlyn] You didn't write a description, and the title does not reflect the cause you identified.
Please update it, and read https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark

> Driver OOM after few days when running streaming
> ------------------------------------------------
>
>                 Key: SPARK-13845
>                 URL: https://issues.apache.org/jira/browse/SPARK-13845
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.5.2, 1.6.1
>            Reporter: jeanlyn
>
> We have a streaming job using *FlumePollInputStream* always driver OOM after few days,
here is some driver heap dump before OOM
> {noformat}
>  num     #instances         #bytes  class name
> ----------------------------------------------
>    1:      13845916      553836640  org.apache.spark.storage.BlockStatus
>    2:      14020324      336487776  org.apache.spark.storage.StreamBlockId
>    3:      13883881      333213144  scala.collection.mutable.DefaultEntry
>    4:          8907       89043952  [Lscala.collection.mutable.HashEntry;
>    5:         62360       65107352  [B
>    6:        163368       24453904  [Ljava.lang.Object;
>    7:        293651       20342664  [C
> ...
> {noformat}
> *BlockStatus* and *StreamBlockId* keep on growing, and the driver OOM in the end.



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