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Date: Sat, 11 May 2013 04:37:17 +0000 (UTC)
From: "binlijin (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12644955.1367015631246.305044.1368247037795@arcas>
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References: <JIRA.12644955.1367015631246@arcas>
Subject: [jira] [Commented] (HBASE-8450) Update hbase-default.xml and
 general recommendations to better suit current hw, h2, experience, etc.
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    [ https://issues.apache.org/jira/browse/HBASE-8450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13655148#comment-13655148 ] 

binlijin commented on HBASE-8450:
---------------------------------

HLog
 - hbase.regionserver.hlog.blocksize and dfs.block.size = 128M or 256M
 - io.bytes.per.checksum = 4096

                
> Update hbase-default.xml and general recommendations to better suit current hw, h2, experience, etc.
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8450
>                 URL: https://issues.apache.org/jira/browse/HBASE-8450
>             Project: HBase
>          Issue Type: Task
>          Components: Usability
>            Reporter: stack
>            Priority: Critical
>             Fix For: 0.95.1
>
>         Attachments: 8450.txt
>
>
> This is a critical task we need to do before we release; review our defaults.
> On cursory review, there are configs in hbase-default.xml that no longer have matching code; there are some that should be changed because we know better now and others that should be amended because hardware and deploys are bigger than they used to be.
> We could also move stuff around so that the must-edit stuff is near the top (zk quorum config. is mid-way down the page) and beef up the descriptions -- especially since these descriptions shine through in the refguide.
> Lastly, I notice that our tgz does not "include" an hbase-default.xml other than the one bundled up in the jar.  Maybe we should make it more accessible.

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