hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-3287) Add option to cache blocks on hfile write and evict blocks on hfile close
Date Tue, 30 Nov 2010 20:38:13 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jonathan Gray updated HBASE-3287:

    Attachment: HBASE-3287-FINAL-trunk.patch

Final patch against trunk.  Change from last review is EvictOnClose is now on by default.
 CacheOnWrite is stil off by default.

> Add option to cache blocks on hfile write and evict blocks on hfile close
> -------------------------------------------------------------------------
>                 Key: HBASE-3287
>                 URL: https://issues.apache.org/jira/browse/HBASE-3287
>             Project: HBase
>          Issue Type: Improvement
>          Components: io, regionserver
>    Affects Versions: 0.90.0
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>             Fix For: 0.92.0
>         Attachments: HBASE-3287-FINAL-trunk.patch
> This issue is about adding configuration options to add/remove from the block cache when
creating/closing files.  For use cases with lots of flushing and compacting, this might be
desirable to prevent cache misses and maximize the effective utilization of total block cache
> The first option, {{hbase.rs.cacheblocksonwrite}}, will make it so we pre-cache blocks
as we are writing out new files.
> The second option, {{hbase.rs.evictblocksonclose}}, will make it so we evict blocks when
files are closed.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message