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https://issues.apache.org/jira/browse/HIVE-3127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400112#comment-13400112
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Kanna Karanam commented on HIVE-3127:
-------------------------------------
@Edward - Thanks for helping me understand the hive better. I couldn’t figure
out the caller of for BlockMergeTask::main anywhere in the code. Thanks.
> Don’t pass–hconf values as command line arguments to child JVM to avoid
> command line exceeding char limit on windows
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-3127
> URL: https://issues.apache.org/jira/browse/HIVE-3127
> Project: Hive
> Issue Type: Bug
> Components: Configuration, Windows
> Affects Versions: 0.9.0, 0.10.0, 0.9.1
> Reporter: Kanna Karanam
> Assignee: Kanna Karanam
> Labels: Windows
> Fix For: 0.10.0
>
> Attachments: HIVE-3127.1.patch.txt, HIVE-3127.2.patch.txt,
> HIVE-3127.3.patch.txt
>
>
> The maximum length of the DOS command string is 8191 characters (in Windows
> latest versions http://support.microsoft.com/kb/830473). This limit will be
> exceeded easily when it appends individual –hconf values to the command
> string. To work around this problem, Write all changed hconf values to a temp
> file and pass the temp file path to the child jvm to read and initialize the
> -hconf parameters from file.
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