gt;>
>> IOW, this is considered an anti-pattern, but...
>>
>> -- Jack Krupansky
>>
>> *From:* tommaso barbugli
>> *Sent:* Wednesday, July 2, 2014 2:16 PM
>> *To:* user@cassandra.apache.org
>> *Subject:* Re: keyspace with hundreds of columnfamilies
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 wrote:
1. What does your data look like – 100 small integers or short strings and
dates, or... 100 massive blobs?
it will
st scared that i will get into some bad
situation problem when 1k CFs will grow to 5 or 10k
>
> -- Jack Krupansky
>
> *From:* tommaso barbugli
>
> *Sent:* Saturday, July 12, 2014 7:58 AM
> *To:* user@cassandra.apache.org
>
> *Subject:* Re: keyspace with hundreds
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
e columns (e.g. time series).
>>>> So 100 columns is OK.
>>>>
>>>> Best,
>>>> Romain
>>>>
>>>>
>>>>
>>>> tommaso barbugli >>> > a écrit sur
>>>> 03/07/2014 21:55:18 :
>>>>
So 100 columns is OK.
>>>
>>> Best,
>>> Romain
>>>
>>>
>>>
>>> tommaso barbugli a écrit sur 03/07/2014 21:55:18 :
>>>
>>> > De : tommaso barbugli
>>> > A : user@cassandra.apache.org,
>>> > D
gt; De : tommaso barbugli
>> > 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 i
main
>
>
>
> tommaso barbugli a écrit sur 03/07/2014 21:55:18 :
>
> > De : tommaso barbugli
> > A : user@cassandra.apache.org,
> > Date : 03/07/2014 21:55
> > Objet : Re: keyspace with hundreds of columnfamilies
> >
> > thank you for the repl
Cassandra can handle many more columns (e.g. time series).
So 100 columns is OK.
Best,
Romain
tommaso barbugli a écrit sur 03/07/2014 21:55:18 :
> De : tommaso barbugli
> A : user@cassandra.apache.org,
> Date : 03/07/2014 21:55
> Objet : Re: keyspace with hundreds of co
sky
>
> *From:* tommaso barbugli
> *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 memor
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
that a substantial portion of the column families created will n
ot intended to be tweaked so it might not be a good idea to
> change it.
>
> Best,
> Romain
>
> tommaso barbugli a écrit sur 02/07/2014 17:40:18 :
>
> > De : tommaso barbugli
> > A : user@cassandra.apache.org,
> > Date : 02/07/2014 17:40
> > Objet
écrit sur 02/07/2014 17:40:18 :
> De : tommaso barbugli
> 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 some
t; > 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 fami
:41 :
> De : tommaso barbugli
> 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
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 talk
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 wrote:
>
> Hi,
> Are there any known issues, shortcomings about organising data in hundr
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
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