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https://issues.apache.org/jira/browse/HDFS-14109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16711766#comment-16711766
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Erik Krogen commented on HDFS-14109:
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I think as with most recent additions to the audit log, it should be protected
by a config which defaults to off. In particular, in an environment using only
a single namespace, we definitely don't want this information, and an
installation may already have some way of adding this information back at a
later time without the NameNode having to write it out on every single audit
entry.
> Improve hdfs auditlog format and support federation friendly
> ------------------------------------------------------------
>
> Key: HDFS-14109
> URL: https://issues.apache.org/jira/browse/HDFS-14109
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: He Xiaoqiao
> Assignee: He Xiaoqiao
> Priority: Major
> Attachments: HDFS-14109.patch
>
>
> The following auditlog format does not well meet requirement for federation
> arch currently. Since some case we need to aggregate all namespace audit log,
> if there are some common path request(e.g. /tmp, /user/ etc. some path may
> not appear in mountTable, but the path is very real), we will have no idea to
> split them that which namespace it request to. So I propose add column
> {{nsid}} to support federation more friendly.
> {quote}2018-11-27 13:20:30,028 INFO FSNamesystem.audit: allowed=true
> ugi=hdfs/[email protected] (auth:KERBEROS) ip=/10.1.1.2 cmd=getfileinfo
> src=/path dst=null perm=null proto=rpc clientName=null
> {quote}
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