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From "Ken Weiner (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1762) Remove concept of ZooKeeper from HConnection interface
Date Wed, 12 Aug 2009 18:15:14 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ken Weiner updated HBASE-1762:
------------------------------

    Status: Patch Available  (was: Open)

If there is support for this patch, it would be nice to get it in before the 0.20.0 release
since it is pretty harmless and represents a change to a client interface.

> Remove concept of ZooKeeper from HConnection interface
> ------------------------------------------------------
>
>                 Key: HBASE-1762
>                 URL: https://issues.apache.org/jira/browse/HBASE-1762
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 0.20.0
>            Reporter: Ken Weiner
>         Attachments: HBASE-1762.patch
>
>
> The concept of ZooKeeper is really an implementation detail and should not be exposed
in the {{HConnection}} interface.   Therefore, I suggest removing the {{HConnection.getZooKeeperWrapper()}}
method from the interface. 
> I couldn't find any uses of this method within the HBase code base except for in one
of the unit tests: {{org.apache.hadoop.hbase.TestZooKeeper}}.  This unit test should be changed
to instantiate the implementation of {{HConnection}} directly, allowing it to use the {{getZooKeeperWrapper()}}
method.  This requires making {{org.apache.hadoop.hbase.client.HConnectionManager.TableServers}}
public.  (I actually think TableServers should be moved out into an outer class, but in the
spirit of small patches, I'll refrain from suggesting that in this issue).
> I'll attach a patch for:
> # The removal of {{HConnection.getZooKeeperWrapper()}}
> # Change of {{TableServers}} class from private to public
> # Direct instantiation of {{TableServers}} within {{TestZooKeeper}}.

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