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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9374) Client requires write access to hbase.local.dir unnecessarily
Date Thu, 02 Jan 2014 18:33:55 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13860549#comment-13860549

Jimmy Xiang commented on HBASE-9374:

That's right. It works around the problem.  The issue is that we don't know if it is in the
server side or client side. Let me check if I can add some checking in the server side. 

> Client requires write access to hbase.local.dir unnecessarily
> -------------------------------------------------------------
>                 Key: HBASE-9374
>                 URL: https://issues.apache.org/jira/browse/HBASE-9374
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, Protobufs
>    Affects Versions: 0.95.2
>            Reporter: Nick Dimiduk
>            Assignee: Jimmy Xiang
>             Fix For: 0.98.0, 0.96.2, 0.99.0
>         Attachments: hbase-9374.patch
> Per this [thread|http://mail-archives.apache.org/mod_mbox/hbase-dev/201308.mbox/%3cCANZa=GuLO0jTLs1fF+5_NRDczO+M=SSqjeAGVEeiCY8injbP8w@mail.gmail.com%3e]
from the dev list.
> {quote}
> It appears that as of HBASE-1936, we now require that client applications have write
access to hbase.local.dir. This is because ProtobufUtil instantiates a DyanamicClassLoader
as part of static initialization. This classloader is used for instantiating Comparators,
Filters, and Exceptions.
> {quote}
> Client applications do not need to use DynamicClassLoader and so should not require this
write access.

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