incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Worst case #iops to read a row
Date Fri, 09 Apr 2010 16:28:31 GMT
Right.

On Fri, Apr 9, 2010 at 11:23 AM, Ryan King <ryan@twitter.com> wrote:
> On Fri, Apr 9, 2010 at 8:39 AM, Jonathan Ellis <jbellis@gmail.com> wrote:
>> worst case is 2 or 3, depending on row size:
>>
>> one seek to read the right row index block
>> one seek to read the row header (bloom filter + column index)
>> if it's a big row, one seek to read the column block (block size is
>> configurable, default is 256KB)
>
> This is all per-sstable that contains the row, right?
>
> -ryan
>

Mime
View raw message