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https://issues.apache.org/jira/browse/HADOOP-10806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14056656#comment-14056656
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Colin Patrick McCabe commented on HADOOP-10806:
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This patch adds some code for parsing {{fs.permissions.umask-mode}} and sending
permission bits in the {{hdfsCreateDirectory}} rpc to the NameNode. This fixes
a bug whereby {{hdfsCreateDirectory}} would fail with this message:
{code}
org.apache.hadoop.native.HadoopCore.IOException: conn_process_response: error
com.google.protobuf.UninitializedMessageException: Message missing required
fields: masked.perm
at
com.google.protobuf.AbstractMessage$Builder.newUninitializedMessageException(AbstractMessage.java:770)
{code}
Clearly we'll also need this for the file write path, when we're creating new
files.
We don't handle "fancy" {{fs.permissions.umask-mode}} values like "rw-r--r--"
etc. yet. It's not too difficult to do that, but it's better to do it in a
follow-on JIRA to avoid complicating this one. For now, we just deal with
numeric umasks.
> ndfs: need to implement umask, pass permission bits to hdfsCreateDirectory
> --------------------------------------------------------------------------
>
> Key: HADOOP-10806
> URL: https://issues.apache.org/jira/browse/HADOOP-10806
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: native
> Affects Versions: HADOOP-10388
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HADOOP-10806-pnative.001.patch
>
>
> We need to pass in permission bits to {{hdfsCreateDirectory}}. Also, we need
> to read {{fs.permissions.umask-mode}} so that we know what to mask off of the
> permission bits (umask is always implemented client-side)
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