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From lars hofhansl <la...@apache.org>
Subject Re: How much time HBase will take if one Region Server down.
Date Wed, 19 Mar 2014 05:51:07 GMT
Many of the improvement were made in HDFS, so benefit 0.94 equally.
Not sure where you read 15-20 minutes for 0.94 in that article.

-- Lars



________________________________
 From: Demai Ni <nidmgg@gmail.com>
To: "user@hbase.apache.org" <user@hbase.apache.org> 
Sent: Tuesday, March 18, 2014 10:59 AM
Subject: Re: How much time HBase will take if one Region Server down.
 

a good article to start with:
http://hortonworks.com/blog/introduction-to-hbase-mean-time-to-recover-mttr/

I would say 15~20 min for 94 or earlier; it can be reduced to a couple min
with HBase 96+ and Hadoop .

Demai



On Tue, Mar 18, 2014 at 10:55 AM, Upendra Yadav <upendra1024@gmail.com>wrote:

> How much time HBase will take if one Region Server down and try to read
> Region that belong to this down Region Server.
>
> Means Is there service down for those all region that belongs to dead RS?
>
> How much time HMaster will take to assign those region to live RS? What is
> the dependencies that may increase region assignment in such situation.
>
> Thanks....
>
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