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https://issues.apache.org/jira/browse/HBASE-1189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erik Holstad updated HBASE-1189:
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Affects Version/s: 0.20.0
Status: Patch Available (was: Open)
Updated the HbaseMapWritable to not use a static constructor but instead
implement a static interface.
> 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
> Affects Versions: 0.20.0
> Reporter: Erik Holstad
> Assignee: Erik Holstad
> Priority: Minor
> Attachments: HBASE-1189-v1.patch, HbaseMapWritable.java,
> StaticLoader.java
>
>
> For the CellCache the need for a HbaseMapWritable that has a different kind
> of map used internally
> 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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