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From Hairong Kuang <hair...@yahoo-inc.com>
Subject Re: Problem: Some blocks remain under replicated
Date Mon, 30 Mar 2009 22:00:04 GMT
Which version of HADOOP are you running? Your cluster might have hit
HADOOP-5465.

Hairong


On 3/29/09 10:24 PM, "ilayaraja" <ilayaraja@rediff.co.in> wrote:

> Hello !
> 
> I am trying to increase the replication factor of a directory in our hadoop
> dfs from 1 to 2.
> I observe that some of the blocks (12 out of 400) always remain under
> replicated, throwing the following message when I do an 'fsck' :
> 
>                     Under replicated blk_9084408236031628003. Target Replicas
> is 2 but found 1 replica(s).
> 
> I thought it could be a problem with a specific data node in the cluster,
> however I observe that the under replicated blocks belong to different data
> nodes .
> 
> Please give me your thoughts.
> 
> Thanks.
> Ilay
> 
> 
> 
> 


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