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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11904) Reuse iip in unprotectedRemoveXAttrs calls
Date Tue, 30 May 2017 23:24:04 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Chen updated HDFS-11904:
-----------------------------
    Description: 
In HDFS-10939, {{unprotectedSetXAttrs}} was optimized to use IIP instead of path string.
This jira is to do the same on {{unprotectedRemoveXAttrs}}.

No performance test specifically for this is done yet, but it's not hard to see if a usage
pattern of frequent removexattr could induce perf issues.

  was:
In HDFS-10939, {{unprotectedSetXAttrs}} was optimized to use IIP instead of path string.
This jira is to do the same on {{unprotectedRemoveXAttrs}}.

No performance test specifically for this is done, but since the optimization is trivial to
do I think we should do it to save future effort.


> Reuse iip in unprotectedRemoveXAttrs calls
> ------------------------------------------
>
>                 Key: HDFS-11904
>                 URL: https://issues.apache.org/jira/browse/HDFS-11904
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.7.0
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>         Attachments: HDFS-11904.01.patch
>
>
> In HDFS-10939, {{unprotectedSetXAttrs}} was optimized to use IIP instead of path string.
> This jira is to do the same on {{unprotectedRemoveXAttrs}}.
> No performance test specifically for this is done yet, but it's not hard to see if a
usage pattern of frequent removexattr could induce perf issues.



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