[jira] [Commented] (FLINK-1141) Selfjoin fails after DataSet exceeds certain size

["Aljoscha Krettek (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-1141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226402#comment-14226402 ] 

Aljoscha Krettek commented on FLINK-1141:
-----------------------------------------

Is this still an issue? Or can we close this?


> Selfjoin fails after DataSet exceeds certain size
> -------------------------------------------------
>
>                 Key: FLINK-1141
>                 URL: https://issues.apache.org/jira/browse/FLINK-1141
>             Project: Flink
>          Issue Type: Bug
>          Components: Distributed Runtime, Local Runtime
>    Affects Versions: 0.6.1-incubating, 0.7.0-incubating
>         Environment: LocalExecutionEnvironment (dop=4)
>            Reporter: Robert Waury
>            Priority: Minor
>         Attachments: LargeSelfJoin.java, execution_plan.json
>
>
> en.As soon as a DataSet exceeds a certain size (1000000 tuples in my example) a Selfjoin with a FlatJoinFunction no longer works. After around a second the Join, DataSource and DataSink threads are all in Wait and don't perform any work (no output files are created) and the job never finishes.
> If I cut the input size in half it works fine.
> My current workaround is to create the DataSet twice and join the two identical DataSets.



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