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From Jabbar Azam <aja...@gmail.com>
Subject Re: Compaction statistics information
Date Sun, 03 Mar 2013 19:28:07 GMT
Thanks Tyler
On 3 Mar 2013 18:55, "Tyler Hobbs" <tyler@datastax.com> wrote:

> It's a description of how many of the compacted SSTables the rows were
> spread across prior to compaction.  In your case, 15 rows were spread
> across two of the four sstables, 68757 rows were spread across three of the
> four sstables, and 6865 were spread across all four.
>
>
> On Fri, Mar 1, 2013 at 11:07 AM, Jabbar Azam <ajazam@gmail.com> wrote:
>
>> Hello,
>>
>> I'm seeing compaction statistics which look like the following
>>
>>  INFO 17:03:09,216 Compacted 4 sstables to
>> [/var/lib/cassandra/data/studata/datapoints/studata-datapoints-ib-629,].
>> 420,807,293 bytes to 415,287,150 (~98% of original) in 341,690ms =
>> 1.159088MB/s.  233,761 total rows, 75,637 unique.  Row merge counts were
>> {1:0, 2:15, 3:68757, 4:6865, }
>>
>> Does anybody know what "Row merge counts were {1:0, 2:15, 3:68757,
>> 4:6865, }" means?
>>
>> --
>> Thanks
>>
>>  A Jabbar Azam
>>
>
>
>
> --
> Tyler Hobbs
> DataStax <http://datastax.com/>
>

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