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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2328) Make important configurations more obvious to new users
Date Wed, 07 Apr 2010 23:59:37 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack updated HBASE-2328:

    Fix Version/s:     (was: 0.20.4)

> Make important configurations more obvious to new users
> -------------------------------------------------------
>                 Key: HBASE-2328
>                 URL: https://issues.apache.org/jira/browse/HBASE-2328
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: Jean-Daniel Cryans
>             Fix For: 0.20.5, 0.21.0
> Over the last 2 weeks, I encountered many situations where people didn't set file descriptors
and xcievers higher and that was causing a ton of problems that are hard to debug if you're
not used to them. To improve that we should:
>  - Refuse to start HBase if ulimit -n returns some small number smaller than 2048, or
at least print out in big red blinking letters that the current configuration is bad and then
link to a simple troubleshooting entry on the wiki.
>  - Write a clearer Getting Started document where we don't give as much explanations
but add more stuff like "this is what your hbase-site.xml/hdfs-site/xml should look like now"
and give a complete file example. At this point we don't even give a number for xcievers and
we expect new users to come up with one.
> Any other low hanging fruit others can think of?

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