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https://issues.apache.org/jira/browse/HIVE-20338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594313#comment-16594313
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Sergey Shelukhin commented on HIVE-20338:
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Heh, so it basically becomes an "is HDFS" config. +1
> LLAP: Force synthetic file-id for filesystems which have HDFS protocol impls
> with POSIX mutation semantics
> ----------------------------------------------------------------------------------------------------------
>
> Key: HIVE-20338
> URL: https://issues.apache.org/jira/browse/HIVE-20338
> Project: Hive
> Issue Type: Bug
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
> Attachments: HIVE-20338.1.patch, HIVE-20338.WIP.patch,
> HIVE-20338.patch
>
>
> HDFS client protocol is not a guarantee of the immutability of files - the
> synthetic file-id includes the mtime of the file as well, which is a
> fail-safe for filesystems which implement the client wire protocol without
> offering the same storage side restrictions on immutability (i.e allow NFS
> read-write-modify on the backend).
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