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https://issues.apache.org/jira/browse/HBASE-700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack resolved HBASE-700.
-------------------------

       Resolution: Fixed
    Fix Version/s: 0.2.0

Resolved as part of HBASE-62.  Thanks for the patch Andrew.

> hbase.io.index.interval need be configuratable in column family 
> ----------------------------------------------------------------
>
>                 Key: HBASE-700
>                 URL: https://issues.apache.org/jira/browse/HBASE-700
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.1.2
>            Reporter: LN
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.2.0
>
>
> setting parameter hbase.io.index.interval to smaller can improve hbase 
> reading performance significantly, esp. in large value size column families. 
> however, small hbase.io.index.interval cause more memory usage, because all 
> index will read into memory when loading a mapfile.
> in my test env, i set hbase.io.index.interval to 1, after inserting about 3M 
> samll size records to a table(about 1.5G in hadoop file), the regionserver 
> throws OOME.  then i found total size of  map file index  is 350M.  however, 
> i can't adjust  hbase.io.index.interval to a larger one, like 32, because 
> other big cell size tables need it be 1.
> so, i think make hbase.io.index.interval a column family property should be 
> very important for performance tuning. 

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