You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/04/12 00:58:25 UTC

[jira] [Assigned] (SPARK-14542) PipeRDD should allow configurable buffer size for the stdin writer

     [ https://issues.apache.org/jira/browse/SPARK-14542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14542:
------------------------------------

    Assignee: Apache Spark

> PipeRDD should allow configurable buffer size for the stdin writer 
> -------------------------------------------------------------------
>
>                 Key: SPARK-14542
>                 URL: https://issues.apache.org/jira/browse/SPARK-14542
>             Project: Spark
>          Issue Type: Improvement
>    Affects Versions: 1.6.1
>            Reporter: Sital Kedia
>            Assignee: Apache Spark
>            Priority: Minor
>
> Currently PipedRDD internally uses PrintWriter to write data to the stdin of the piped process, which by default uses a BufferedWriter of buffer size 8k. In our experiment, we have seen that 8k buffer size is too small and the job spends significant amount of CPU time in system calls to copy the data. We should have a way to configure the buffer size for the writer. 



--
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