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https://issues.apache.org/jira/browse/HDFS-17478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838426#comment-17838426
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ASF GitHub Bot commented on HDFS-17478:
---------------------------------------
mneethiraj opened a new pull request, #6749:
URL: https://github.com/apache/hadoop/pull/6749
### Description of PR
Updated FsPermissionChecker to initialize accessControlEnforcer with
INodeAttributeProvider.getExternalAccessControlEnforcer() and use this instance
to authorize accesses, instead of calling
INodeAttributeProvider.getExternalAccessControlEnforcer() for every
authorization.
### How was this patch tested?
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
> FSPermissionChecker to avoid obtaining a new AccessControlEnforcer instance
> before each authz call
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-17478
> URL: https://issues.apache.org/jira/browse/HDFS-17478
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namanode
> Reporter: Madhan Neethiraj
> Assignee: Madhan Neethiraj
> Priority: Major
> Attachments: HDFS-17478.patch
>
>
> An instance of AccessControlEnforcer is obtained from the registered
> INodeAttributeProvider before every call made to authorizer. This can be
> avoided by initializing the AccessControlEnforcer instance during
> construction of FsPermissionChecker and using it in every subsequent call to
> the authorizer. This will eliminate the unnecessary overhead in highly
> performance sensitive authz code path.
>
> CC: [~abhay], [~arp], [~swagle]
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