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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/12/13 14:43:58 UTC

[jira] [Assigned] (SPARK-18842) De-duplicate paths in classpaths in processes for local-cluster mode to work around the length limitation on Windows

     [ https://issues.apache.org/jira/browse/SPARK-18842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-18842:
------------------------------------

    Assignee: Apache Spark

> De-duplicate paths in classpaths in processes for local-cluster mode to work around the length limitation on Windows
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-18842
>                 URL: https://issues.apache.org/jira/browse/SPARK-18842
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core, Tests
>            Reporter: Hyukjin Kwon
>            Assignee: Apache Spark
>            Priority: Minor
>
> Currently, some tests are being failed and hanging on Windows due to this problem. For the reason in SPARK-18718, some tests using {{local-cluster}} mode were disabled on Windows due to the length limitation by paths given to classpaths.
> The limitation seems roughly 32K (see https://blogs.msdn.microsoft.com/oldnewthing/20031210-00/?p=41553/ and https://support.thoughtworks.com/hc/en-us/articles/213248526-Getting-around-maximum-command-line-length-is-32767-characters-on-Windows) but executors were being launched with the command such as https://gist.github.com/HyukjinKwon/5bc81061c250d4af5a180869b59d42ea in (only) tests.
> This length is roughly 40K due to the class paths. However, it seems there are duplicates more than half. So, if we de-duplicate this paths, it is reduced to roughly 20K.
> Maybe, we should consider as some more paths are added in the future but it seems better than disabling all the tests for now with minimised changes.



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