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Posted to common-dev@hadoop.apache.org by "stack (JIRA)" <ji...@apache.org> on 2008/01/17 05:56:35 UTC

[jira] Updated: (HADOOP-2623) [hbase] Add a cache of 'hot' cells

     [ https://issues.apache.org/jira/browse/HADOOP-2623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HADOOP-2623:
--------------------------

    Attachment: cache.patch

Very basic LRU cell cache.  Caches configurable count of latest version.  No accounting of cache size.  Not for production use.

One thing learned is that cell caching is awkward; cells generally don't specify their timestamp yet cell keys, HStoreKey, have an explicit timestamp.

> [hbase] Add a cache of 'hot' cells
> ----------------------------------
>
>                 Key: HADOOP-2623
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2623
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>            Reporter: stack
>            Priority: Minor
>         Attachments: cache.patch
>
>


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