Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
MapReduce >> mail # user >> issues with decrease the default.block.size


Copy link to this message
-
Re: issues with decrease the default.block.size
Hi harsh

Yep.

Regards
发自我的 iPhone

在 2013-5-10,13:27,Harsh J <[EMAIL PROTECTED]> 写道:

> Are you looking to decrease it to get more parallel map tasks out of
> the small files? Are you currently CPU bound on processing these small
> files?
>
> On Thu, May 9, 2013 at 9:12 PM, YouPeng Yang <[EMAIL PROTECTED]> wrote:
>> hi ALL
>>
>>     I am going to setup a new hadoop  environment, .Because  of  there  are
>> lots of small  files, I would  like to change  the  default.block.size to
>> 16MB
>> other than adopting the ways to merge  the files into large  enough (e.g
>> using  sequencefiles).
>>    I want to ask are  there  any bad influences or issues?
>>
>> Regards
>
>
>
> --
> Harsh J
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB