barbugli tbarbu...@gmail.com
*Sent:* Wednesday, July 2, 2014 2:16 PM
*To:* user@cassandra.apache.org
*Subject:* Re: keyspace with hundreds of columnfamilies
Hi,
thank you for you replies on this; regarding the arena memory is this a
fixed memory allocation or is some sort of in memory caching
PM
To: user@cassandra.apache.org
Subject: Re: keyspace with hundreds of columnfamilies
hi Jack
thank you for your clear answer!
On Saturday, 12 July 2014, Jack Krupansky j...@basetechnology.com wrote:
1. What does your data look like – 100 small integers or short strings and
dates, or... 100
@cassandra.apache.org
javascript:_e(%7B%7D,'cvml','user@cassandra.apache.org');,
Date : 03/07/2014 21:55
Objet : Re: keyspace with hundreds of columnfamilies
thank you for the replies; I am rethinking the schema design, one
possible solution is to implode one dimension and get N times
7:58 AM
To: user@cassandra.apache.org
Subject: Re: keyspace with hundreds of columnfamilies
hi,
how is a table with hundreds columns is going to perform?
i am moving from 1k column families each with 10 columns to 100 CFs each with
100 columns.
thank you
tommaso
On Friday, 11 July 2014
(%7B%7D,'cvml','user@cassandra.apache.org');,
Date : 03/07/2014 21:55
Objet : Re: keyspace with hundreds of columnfamilies
thank you for the replies; I am rethinking the schema design, one
possible solution is to implode one dimension and get N times less
CFs.
With this approach I
sur 03/07/2014 21:55:18 :
De : tommaso barbugli tbarbu...@gmail.com
A : user@cassandra.apache.org,
Date : 03/07/2014 21:55
Objet : Re: keyspace with hundreds of columnfamilies
thank you for the replies; I am rethinking the schema design, one
possible solution is to implode one
Objet : Re: keyspace with hundreds of columnfamilies
thank you for the replies; I am rethinking the schema design, one
possible solution is to implode one dimension and get N times less
CFs.
With this approach I would come up with (cql) tables with up to 100
columns; would
,
Romain
tommaso barbugli tbarbu...@gmail.com a écrit sur 03/07/2014 21:55:18 :
De : tommaso barbugli tbarbu...@gmail.com
A : user@cassandra.apache.org,
Date : 03/07/2014 21:55
Objet : Re: keyspace with hundreds of columnfamilies
thank you for the replies; I am rethinking the schema
...@gmail.com
*Sent:* Wednesday, July 2, 2014 2:16 PM
*To:* user@cassandra.apache.org
*Subject:* Re: keyspace with hundreds of columnfamilies
Hi,
thank you for you replies on this; regarding the arena memory is this a
fixed memory allocation or is some sort of in memory caching? I ask because
I think
Hi,
Are there any known issues, shortcomings about organising data in hundreds
of column families?
At this present I am running with 300 column families but I expect that to
get to a couple of thousands.
Is this something discouraged / unsupported (I am using Cassandra 2.0).
Thanks
Tommaso
Hello
There is overhead for memory with each col family. This type of
configuration could cause heap issues. What is driving the
requirement for so many Cfs?
On Jul 2, 2014, at 4:14 AM, tommaso barbugli tbarbu...@gmail.com wrote:
Hi,
Are there any known issues, shortcomings about
Hi,
I am building a sort of db as a service (more, one db table as a service)
and I want every user to have their own storage as much isolated as
possible (and give them some freedom in terms of schema customisation and
the ability to build 2i indexes).
You know what kind of memory cost we are
02/07/2014 10:13:41 :
De : tommaso barbugli tbarbu...@gmail.com
A : user@cassandra.apache.org,
Date : 02/07/2014 10:14
Objet : keyspace with hundreds of columnfamilies
Hi,
Are there any known issues, shortcomings about organising data in
hundreds of column families?
At this present I
...@gmail.com a écrit sur 02/07/2014 17:40:18 :
De : tommaso barbugli tbarbu...@gmail.com
A : user@cassandra.apache.org,
Date : 02/07/2014 17:40
Objet : Re: keyspace with hundreds of columnfamilies
1MB per column family sounds pretty bad to me; is this something I
can tweak/workaround
...@gmail.com
A : user@cassandra.apache.org,
Date : 02/07/2014 10:14
Objet : keyspace with hundreds of columnfamilies
Hi,
Are there any known issues, shortcomings about organising data in
hundreds of column families?
At this present I am running with 300 column families but I expect
@cassandra.apache.org
Subject: Re: keyspace with hundreds of columnfamilies
Hi,
thank you for you replies on this; regarding the arena memory is this a fixed
memory allocation or is some sort of in memory caching? I ask because I think
that a substantial portion of the column families created
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