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Date: Fri, 30 Sep 2016 20:23:20 +0000 (UTC)
From: "Daryn Sharp (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.13008956.1475263530000.711700.1475267000508@Atlassian.JIRA>
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References: <JIRA.13008956.1475263530000@Atlassian.JIRA> <JIRA.13008956.1475263530200@arcas>
Subject: [jira] [Updated] (HDFS-10939) Reduce performance penalty of
 encryption zones
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archived-at: Fri, 30 Sep 2016 20:23:27 -0000


     [ https://issues.apache.org/jira/browse/HDFS-10939?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daryn Sharp updated HDFS-10939:
-------------------------------
    Status: Patch Available  (was: Open)

> 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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