Any daemon?

[kartheek muthyala <ka...@gmail.com>]

Hi all,
I am interested in knowing, if there is any background daemon in hadoop
which runs for regular periods checking if all the data copies(blocks as
listed in block map) do exist and are not corrupted?. Can you please point
me to that piece of code in hadoop?
Thanks,
Kartheek.

Re: Any daemon?

[Uma Maheswara Rao G 72686 <ma...@huawei.com>]

 You can look at BlockPoolSliceScanner#scan method. This is in trunk code.

 You can find this logic in DataBlockScanner#run in earlier versions.
 
Regards,
Uma
----- Original Message -----
From: kartheek muthyala <ka...@gmail.com>
Date: Monday, November 7, 2011 7:31 pm
Subject: Any daemon?
To: common-user@hadoop.apache.org

> Hi all,
> I am interested in knowing, if there is any background daemon in 
> hadoopwhich runs for regular periods checking if all the data 
> copies(blocks as
> listed in block map) do exist and are not corrupted?. Can you 
> please point
> me to that piece of code in hadoop?
> Thanks,
> Kartheek.
>