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Posted to common-dev@hadoop.apache.org by "Jim Kellerman (JIRA)" <ji...@apache.org> on 2007/06/26 01:06:25 UTC

[jira] Resolved: (HADOOP-1399) Provide the ability to cache column data in memory

     [ https://issues.apache.org/jira/browse/HADOOP-1399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jim Kellerman resolved HADOOP-1399.
-----------------------------------

    Resolution: Duplicate

Duplicate of HADOOP-1398

> Provide the ability to cache column data in memory
> --------------------------------------------------
>
>                 Key: HADOOP-1399
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1399
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: contrib/hbase
>            Reporter: Jim Kellerman
>            Priority: Minor
>
> Bigtable allows column families to be served out of memory to reduce disk accesses.
> Issues with this are:
> - need region server row/value caching and block caching
> - maintaining read cache coherency while writes are on-going.

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