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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-14512) Cache UGI groups
Date Sat, 16 Jan 2016 02:48:39 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-14512:
-----------------------------------
    Attachment: HBASE-14512-addendum-0.98.patch

Addendum adds a null check for 'connection' when constructing a RpcServer#Call. Patch based
on 0.98 but the change is the same everywhere.

> Cache UGI groups
> ----------------
>
>                 Key: HBASE-14512
>                 URL: https://issues.apache.org/jira/browse/HBASE-14512
>             Project: HBase
>          Issue Type: Bug
>          Components: Performance, security
>    Affects Versions: 1.2.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 2.0.0, 1.2.0, 1.3.0, 0.98.17
>
>         Attachments: HBASE-14512-addendum-0.98.patch, HBASE-14512-v1.patch, HBASE-14512-v2.patch,
HBASE-14512-v3.patch, HBASE-14512-v4.patch, HBASE-14512.patch
>
>
> Right now every call gets a new User object.
> We should keep the same user for the life of a connection. We should also cache the group
names. However we can't cache the groups for forever as that would mean groups don't get refreshed
every 5 mins.



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