When creating a new CF, defaults are now in fact compression enabled.
On Sat, Mar 17, 2012 at 5:50 AM, R. Verlangen <ro...@us2.nl> wrote:
> Check your log for messages about rebuilding indices: that might grow your
> dataset some.
>
> One thing is for sure: the data import removed all the crap that lasted in
> the 0.8.1 cluster (duplicates, thombstones etc). The decrease is fairly
> dramatic but not unlogical at all.
>
>
> 2012/3/16 Jeremiah Jordan <jeremiah.jor...@morningstar.com>
>
>> I would guess more aggressive compaction settings, did you update rows
>> or insert some twice?
>> If you run major compaction a couple times on the 0.8.1 cluster does the
>> data size get smaller?
>>
>> You can use the "describe" command to check if compression got turned on.
>>
>> -Jeremiah
>>
>> ------------------------------
>> *From:* Ravikumar Govindarajan [ravikumar.govindara...@gmail.com]
>> *Sent:* Thursday, March 15, 2012 4:41 AM
>> *To:* user@cassandra.apache.org
>> *Subject:* 0.8.1 Vs 1.0.7
>>
>> Hi,
>>
>> I ran some data import tests for cassandra 0.8.1 and 1.0.7. The results
>> were a little bit surprising
>>
>> 0.8.1, SimpleStrategy, Rep_Factor=3,QUORUM Writes, RP, SimpleSnitch
>>
>> XXX.XXX.XXX.A datacenter1 rack1 Up Normal 140.61 GB
>> 12.50%
>> XXX.XXX.XXX.B datacenter1 rack1 Up Normal 139.92 GB
>> 12.50%
>> XXX.XXX.XXX.C datacenter1 rack1 Up Normal 138.81 GB
>> 12.50%
>> XXX.XXX.XXX.D datacenter1 rack1 Up Normal 139.78 GB
>> 12.50%
>> XXX.XXX.XXX.E datacenter1 rack1 Up Normal 137.44 GB
>> 12.50%
>> XXX.XXX.XXX.F datacenter1 rack1 Up Normal 138.48 GB
>> 12.50%
>> XXX.XXX.XXX.G datacenter1 rack1 Up Normal 140.52 GB
>> 12.50%
>> XXX.XXX.XXX.H datacenter1 rack1 Up Normal 145.24 GB
>> 12.50%
>>
>> 1.0.7, NTS, Rep_Factor{DC1:3, DC2:2}, LOCAL_QUORUM writes, RP [DC2 m/c
>> yet to join ring],
>> PropertyFileSnitch
>>
>> XXX.XXX.XXX.A DC1 RAC1 Up Normal 48.72 GB 12.50%
>> XXX.XXX.XXX.B DC1 RAC1 Up Normal 51.23 GB 12.50%
>>
>> XXX.XXX.XXX.C DC1 RAC1 Up Normal 52.4 GB 12.50%
>>
>> XXX.XXX.XXX.D DC1 RAC1 Up Normal 49.64 GB 12.50%
>>
>> XXX.XXX.XXX.E DC1 RAC1 Up Normal 48.5 GB 12.50%
>>
>> XXX.XXX.XXX.F DC1 RAC1 Up Normal 53.38 GB 12.50%
>>
>> XXX.XXX.XXX.G DC1 RAC1 Up Normal 51.11 GB 12.50%
>>
>> XXX.XXX.XXX.H DC1 RAC1 Up Normal 53.36 GB 12.50%
>>
>> There seems to be 3X savings in size for the same dataset running
>> 1.0.7. I have not enabled compression for any of the CFs. Will it be
>> enabled by default when creating a new CF in 1.0.7? cassandra.yaml is also
>> mostly identical.
>>
>> Thanks and Regards,
>> Ravi
>>
>
>
