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From "Bryan Duxbury (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-406) Remove HTable and HConnection close methods
Date Tue, 05 Feb 2008 01:17:07 GMT
Remove HTable and HConnection close methods
-------------------------------------------

                 Key: HBASE-406
                 URL: https://issues.apache.org/jira/browse/HBASE-406
             Project: Hadoop HBase
          Issue Type: Improvement
          Components: client
            Reporter: Bryan Duxbury
            Priority: Minor


As a holdover from the old style of full-meta caching, HTable and HConnection have close methods
that are intended to release resources when you are done using a table. However, with the
new lazy cache, it no longer makes sense to manually manage your connection cache. Instead,
we should remove HTable.close and HConnection.close and allow the cache's resource usage to
be managed by other means. 

This will have the effect of making opening and "closing" HTables very cheap once they've
been opened at least once. This is actually sort of critical for applications like REST, which
use a lot of instances of HTable rather than caching a single HTable. Opening and closing
the table in the old style would be very expensive.

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