Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase >> mail # user >> Region Server always Crash When M/R


Copy link to this message
-
Re: Region Server always Crash When M/R
My Region server configuration as below:
Should I set Java Heap Size to more ?  The region server have 4 G memory total.
在 2013年11月8日,上午11:37,Ted Yu <[EMAIL PROTECTED]> 写道:

> The attachment didn't go through.
>
> Can you pastebin the logs ?
>
> What was GC like before the crash ?
>
> How much heap did you give your region servers ?
>
> Cheers
>
>
> On Thu, Nov 7, 2013 at 7:28 PM, GuoWei <[EMAIL PROTECTED]> wrote:
> Dear,
>
> Recently when I use CDH 4.0 to do M/R job. I always let Region Server Crashed. Attached are region server logs.
>
> And In my M/R program , I set job reduceTaskNum to 4. Because I have two data nodes each configured 2 reduce slots.
>
> Please help me find why ?
>
>
> Thanks a lot.
>
>
>
> BR
> Brad
>