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From "Erik Holstad (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HBASE-1189) Changing the map type used internally for HbaseMapWritable.
Date Sat, 07 Feb 2009 02:44:59 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Erik Holstad reassigned HBASE-1189:

    Assignee: Erik Holstad

> Changing the map type used internally  for HbaseMapWritable. 
> -------------------------------------------------------------
>                 Key: HBASE-1189
>                 URL: https://issues.apache.org/jira/browse/HBASE-1189
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: io
>            Reporter: Erik Holstad
>            Assignee: Erik Holstad
>            Priority: Minor
> For the CellCache the need for a HbaseMapWritable that has a different kind of map used
> has showed up. The problem is that the instantiation of the map is done static so you
have no control 
> over it and if extending HMW you get both the memory usage for the parent as well as
the child.
> After trying out different ideas on how to solve this, it seems like the easiest way
would be to have a setMapType
> method and just set it to null in the code. If the old code would be kept you would need
to instantiate 2
> different maps. The problem with setting it to null is that all the old code needs to
be changed to fit the new model,
> and also be used in the future.

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