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From "Mikhail Bautin (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4422) Move block cache parameters and references into single CacheConf class
Date Mon, 03 Oct 2011 18:37:36 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119479#comment-13119479
] 

Mikhail Bautin commented on HBASE-4422:
---------------------------------------

For some reason the most recent version of the patch does not apply for me (one hunk gets
rejected in StoreFile.java). The way I am trying to apply the patch is

curl https://reviews.apache.org/r/2089/diff/4/raw/ | patch -p0

and I get http://pastebin.com/8aZ5r9Pf. My current revision is 1176613.

                
> Move block cache parameters and references into single CacheConf class
> ----------------------------------------------------------------------
>
>                 Key: HBASE-4422
>                 URL: https://issues.apache.org/jira/browse/HBASE-4422
>             Project: HBase
>          Issue Type: Improvement
>          Components: io
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>             Fix For: 0.92.0
>
>
> From StoreFile down to HFile, we currently use a boolean argument for each of the various
block cache configuration parameters that exist.  The number of parameters is going to continue
to increase as we look at compressed cache, delta encoding, and more specific L1/L2 configuration.
 Every new config currently requires changing many constructors because it introduces a new
boolean.
> We should move everything into a single class so that modifications are much less disruptive.

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