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Date: Tue, 18 Oct 2011 04:12:10 +0000 (UTC)
From: "Harsh J (Updated) (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HBASE-4510) Check and workaround usage of
 internal HDFS APIs in HBase
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     [ https://issues.apache.org/jira/browse/HBASE-4510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harsh J updated HBASE-4510:
---------------------------

    Priority: Major  (was: Blocker)
     Summary: Check and workaround usage of internal HDFS APIs in HBase  (was: HDFS-1620 related changes downstream (For compiling with HDFS 0.23+))

Unfortunately my vacation's made me go way off-sync surrounding this issue.

Todd has fixed build for 0.23 via HDFS-2412 already, and that patch would be available for 0.23 at least (graceful deprecation being the plan).

We're proposing adding a public 'check' of SafeMode status in HDFS upstream, via HDFS-2413, which HBASE and other projects can then rely on.

Changes made to ticket:
- Changed title to reflect new goal.
- Changed the severity down from blocker as it isn't anymore, after HDFS-2412 went in.
                
> Check and workaround usage of internal HDFS APIs in HBase
> ---------------------------------------------------------
>
>                 Key: HBASE-4510
>                 URL: https://issues.apache.org/jira/browse/HBASE-4510
>             Project: HBase
>          Issue Type: Task
>    Affects Versions: 0.94.0
>            Reporter: Harsh J
>            Assignee: Harsh J
>
> HBase isn't seemingly compiling anymore on 0.23 after the HDFS-1620 naming refactorings were carried out.
> Two solutions:
> * We use new classnames. This breaks HBase's backward compatibility with older Hadoop releases (is that a concern with future releases?)
> * HBase gets its own sets of constants as the upstream one is not marked for public usage. This needs a little more maintenance on HBases' side.

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