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https://issues.apache.org/jira/browse/HADOOP-16711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16976966#comment-16976966
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Rajesh Balamohan commented on HADOOP-16711:
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ORC-570 is specific to lazy init on ORC side and after this fix was tried out.
For S3, it would be nice to combine #1, #2. As of now, genuine callers are also
impacted by verifyBuckets call.
This still does not cover the {{FileSystem::get()}} spinning up lots of FS
inits with simultaneous thread accessing at same time (e.g LLAP).
> With S3Guard + authmode, consider skipping "verifyBuckets" check in S3A fs
> init()
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-16711
> URL: https://issues.apache.org/jira/browse/HADOOP-16711
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Rajesh Balamohan
> Priority: Minor
> Labels: performance
> Attachments: HADOOP-16711.prelim.1.patch
>
>
> When authoritative mode is enabled with s3guard, it would be good to skip
> verifyBuckets call during S3A filesystem init(). This would save call to S3
> during init method.
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