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From Vimal Jain <vkj...@gmail.com>
Subject Re: How many column families in one table ?
Date Mon, 01 Jul 2013 09:11:43 GMT
I scanned it during normal traffic hours.There was no I/O load on the
server.
I dont see any GC locks too.
Also i have given 1.5G to RS , 512M to each Master and Zookeeper.

One correction in the post above :
Actual time to scan whole table is even more , it takes 10 mins to scan 0.1
million rows ( so total of 2.5 hours to scan 1.6 million rows) .
The time i mentioned in previous post was for different type of
lookup.Please ignore that.


On Mon, Jul 1, 2013 at 2:24 PM, Viral Bajaria <viral.bajaria@gmail.com>wrote:

> When you did the scan, did you check what the bottleneck was ? Was it I/O ?
> Did you see any GC locks ? How much RAM are you giving to your RS ?
>
> -Viral
>
> On Mon, Jul 1, 2013 at 1:44 AM, Vimal Jain <vkjk89@gmail.com> wrote:
>
> > To completely scan the table for all 140 columns  , it takes around 30-40
> > minutes.
> >
>



-- 
Thanks and Regards,
Vimal Jain

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