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From Prakash Kadel <prakash.ka...@gmail.com>
Subject Re: coprocessor enabled put very slow, help please~~~
Date Mon, 18 Feb 2013 09:01:29 GMT
its a local read. i just check the last param of PostCheckAndPut indicating if the Put succeeded.
Incase if the put success, i insert a row in another table

Sincerely,
Prakash Kadel

On Feb 18, 2013, at 2:52 PM, Wei Tan <wtan@us.ibm.com> wrote:

> Is your CheckAndPut involving a local or remote READ? Due to the nature of 
> LSM, read is much slower compared to a write...
> 
> 
> Best Regards,
> Wei
> 
> 
> 
> 
> From:   Prakash Kadel <prakash.kadel@gmail.com>
> To:     "user@hbase.apache.org" <user@hbase.apache.org>, 
> Date:   02/17/2013 07:49 PM
> Subject:        coprocessor enabled put very slow, help please~~~
> 
> 
> 
> hi,
>   i am trying to insert few million documents to hbase with mapreduce. To 
> enable quick search of docs i want to have some indexes, so i tried to use 
> the coprocessors, but they are slowing down my inserts. Arent the 
> coprocessors not supposed to increase the latency? 
> my settings:
>    3 region servers
>   60 maps
> each map inserts to doc table.(checkAndPut)
> regionobserver coprocessor does a postCheckAndPut and inserts some rows to 
> a index table.
> 
> 
> Sincerely,
> Prakash
> 

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