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HBase, mail # user - Increment operations in hbase


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Re: Increment operations in hbase
Ted Yu 2013-01-12, 18:59
Can you tell us which version of HBase you are using ?

Thanks

On Sat, Jan 12, 2013 at 10:57 AM, Asaf Mesika <[EMAIL PROTECTED]> wrote:

> Most time is spent reading from Store file and not on network transfer time
> of Increment objects.
>
> Sent from my iPhone
>
> On 12 בינו 2013, at 17:40, Anoop John <[EMAIL PROTECTED]> wrote:
>
> Hi
>     Can you check with using API  HTable#batch()?  Here you can batch a
> number of increments for many rows in just one RPC call. Might help you to
> reduce the net time taken.  Good luck.
>
> -Anoop-
>
> On Sat, Jan 12, 2013 at 4:07 PM, kiran <[EMAIL PROTECTED]>
> wrote:
>
> Hi,
>
>
> My usecase is I need to increment 1 million rows with in 15 mins. I tried
>
> two approaches but none of the yielded results.
>
>
> I have used HTable.increment, but is not getting completed in the specified
>
> time. I tried multi-threading also but it is very costly. I have also
>
> implemented get and put as other alternative, but that approach is also not
>
> getting completed in 15 mins.
>
>
> Can I use any low level implementation like using "Store or HRegionServer"
>
> to increment 1 million rows. I know the table splits, and region servers
>
> serving them, and rows which fall into table splits. I suspect the major
>
> concern as network I/O rather than processing with the above two
>
> approaches.
>
>
> --
>
> Thank you
>
> Kiran Sarvabhotla
>
>
> -----Even a correct decision is wrong when it is taken late
>