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From Krishna Rao <kris...@blinkbox.com>
Subject Re: HBase checksum vs HDFS checksum
Date Tue, 29 Apr 2014 08:28:11 GMT
Hi Ted,

I had read those, but I'm confused about how this will affect non-HBase HDFS data. With HDFS
checksumming off won't it affect data integrity?


On 24 April 2014 15:54, Ted Yu <yuzhihong@gmail.com<mailto:yuzhihong@gmail.com>>
Please take a look at the following:


On Thu, Apr 24, 2014 at 5:55 AM, Krishna Rao <krishnanjrao@gmail.com<mailto:krishnanjrao@gmail.com>>

> Hi all,
> I understand that there is a significant improvement gain when turning on
> short circuit reads, and additionally by setting HBase to do checksums
> rather than HDFS.
> However, I'm a little confused by this, do I need to turn of checksum
> within HDFS for the entire file system? We don't just use HBase on our
> cluster, so this would seem to be a bad idea right?
>  Cheers,
> Krishna

Krishna Rao
Senior Development Engineer Lead
t: +44 20 7117 0809
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