hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-15316) Add the ability to cache ROOT_INDEX on reads only
Date Tue, 23 Feb 2016 21:42:18 GMT
Elliott Clark created HBASE-15316:
-------------------------------------

             Summary: Add the ability to cache ROOT_INDEX on reads only
                 Key: HBASE-15316
                 URL: https://issues.apache.org/jira/browse/HBASE-15316
             Project: HBase
          Issue Type: Bug
            Reporter: Elliott Clark


For larger data sets it's sometimes not needed to fit the entire index in memory ( there can
be cold spots in the data, too much data in index, etc). However it's almost always needed
to cache the root index. It's always the hottest blocks of the entire region.

We should allow the root index block to be cached in memory on write. We should also do that
by default.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message