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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: The count operation in hbase shell ran too slowly
Date Fri, 23 Apr 2010 20:54:03 GMT
The shell uses a scanner prefetching of 10 rows in the shell, maybe
you set it higher in your own code?

But 3000 secs does seem unusually high.

J-D

2010/4/23 WANG Shicai <Evan_65@yahoo.cn>:
> Hi,
>
> Count operation in shell over a 1,000,000 records table wasted 3000 seconds; while a
scan operation using java api cost only 32 seconds. Why?
>
> WANG Shicai ,
>
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