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https://issues.apache.org/jira/browse/HIVE-8584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183882#comment-14183882
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Lefty Leverenz commented on HIVE-8584:
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[~xiaobingo], if you want me to do the documentation then I'll need a clearer
description of what should be documented. "ZLIB mode is not portable" doesn't
seem adequate, but the other snippets of information in these comments leave me
slightly confused.
For starters, which platforms _does_ ZLIB work on? (Even before that, I'd like
a complete list of platforms that Hive runs on for the Getting Started wikidoc
-- see HIVE-7444.)
> Setting hive.exec.orc.default.compress to ZLIB will lead to orc file size
> delta byte(s) shorter on Windows than Linux
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-8584
> URL: https://issues.apache.org/jira/browse/HIVE-8584
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.14.0
> Environment: Windows
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Priority: Minor
> Attachments: HIVE-8584.1.patch, orc-win-none-1.dump,
> orc-win-none-2.dump, orc-win-snappy-1.dump, orc-win-snappy-2.dump,
> orc-win-zlib-1.dump, orc-win-zlib-2.dump, orc_analyze.q
>
>
> repo steps:
> 1. run query orc_analyze.q
> 2. hive --orcfiledump <target_orc_file_generated>
> run 1 and 2 on PST timezone on Linux, and one more time on other timezone
> e.g. CST on Windows.
> Compare two target orc file dumping. Windows orc file is 1 byte shorter than
> Linux one.
> That's the case even if running 1 and 2 on Windows for different timezones,
> however, no problem on Linux.
> The issue only exists by using ZLIB mode, eventually OS native compression
> lib is used.
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