[jira] [Commented] (HDFS-10939) Reduce performance penalty of encryption zones

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-10939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15537029#comment-15537029 ] 

Hadoop QA commented on HDFS-10939:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m  0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red}  0m  5s{color} | {color:red} HDFS-10939 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-10939 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12831165/HDFS-10939.patch |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/16952/console |
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> Reduce performance penalty of encryption zones
> ----------------------------------------------
>
>                 Key: HDFS-10939
>                 URL: https://issues.apache.org/jira/browse/HDFS-10939
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>    Affects Versions: 2.7
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HDFS-10939.patch
>
>
> The encryption zone APIs should be optimized to extensively use IIPs to eliminate path resolutions.  The performance penalties incurred by common operations like creation of file statuses may be reduced by more extensive short-circuiting of EZ lookups when no EZs exist.  All file creates should not be subjected to the multi-stage locking performance penalty required only for EDEK generation.



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