05:57:48 -0500 *Lata Kannan
mailto:lata.kan...@oracle.com>>*
wrote
Hi
I just wanted to check if there is any known limit to the
number of
keyspaces one can create in a Cassandra cluster?
Alternatively is there
regards, Vladimir Yudovin,
Winguzone - Cloud Cassandra Hosting
On Sun, 05 Mar 2017 05:57:48 -0500 Lata Kannan
<lata.kan...@oracle.com> wrote
Hi
I just wanted to check if there is any known limit to the number of
keyspaces one can create in a Cassandra cluster? Altern
//winguzone.com?from=list> - Cloud Cassandra Hosting*
>
>
> On Sun, 05 Mar 2017 05:57:48 -0500 *Lata Kannan
> >* wrote
>
> Hi
>
> I just wanted to check if there is any known limit to the number of
> keyspaces one can create in a Cassandra cluster? Alterna
I just wanted to check if there is any known limit to the number of
keyspaces one can create in a Cassandra cluster? Alternatively is there
a max on the number of tables that can be created in a cluster?
--
Thanks
--lata
No seriously.
Am 05.03.2017 2:54 nachm. schrieb "Rakesh Kumar" :
> > I ask back: what's your intention
>
> May be documenting the limitations of Cassandra to show Oracle is better
> :-)
>
> Am 05.03.2017 11:58 schrieb "Lata Kannan" lata.kan...@oracle.com>>:
>
> I ask back: what's your intention
May be documenting the limitations of Cassandra to show Oracle is better :-)
Am 05.03.2017 11:58 schrieb "Lata Kannan"
mailto:lata.kan...@oracle.com>>:
^
I ask back: what's your intention
Am 05.03.2017 11:58 schrieb "Lata Kannan" :
> Hi
>
> I just wanted to check if there is any known limit to the number of
> keyspaces one can create in a Cassandra cluster? Alternatively is there a
> max on the number of tables th
Hi
I just wanted to check if there is any known limit to the number of
keyspaces one can create in a Cassandra cluster? Alternatively is there
a max on the number of tables that can be created in a cluster?
--
Thanks
--lata
t; *From:* Sourabh Agrawal
> *Sent:* Thursday, July 10, 2014 11:22 PM
> *To:* user@cassandra.apache.org
> *Subject:* Practical limit to number of keyspaces?
>
> Hi,
>
> We are using 2.0.x in production env. Each node has 8G heap. Is there a
> practical limit to how ma
bject: Practical limit to number of keyspaces?
Hi,
We are using 2.0.x in production env. Each node has 8G heap. Is there a
practical limit to how many keyspaces I can have? Please note that many
keyspaces remain mostly dormant while others have very high level of activity.
--
Sourabh Ag
Hi,
We are using 2.0.x in production env. Each node has 8G heap. Is there a
practical limit to how many keyspaces I can have? Please note that many
keyspaces remain mostly dormant while others have very high level of
activity.
--
Sourabh Agrawal
Bangalore
+91 9945657973
Thankyou for making these issues clear. Currently, in my datamodel, I have
the current second( seconds-from-epoch) as the row key and micro second
with the client number as the column key.
Hence, all the packets received during a particular second
on all the clients are stored in t
> Each client is writing to a separate keyspace simultaneously. Hence, is there
> a lot of switching of keyspaces?
>
>
I would think not. If the client app is using one keyspace per connection there
should be no reason for the driver to change keyspaces.
> But, I observed that when using a
Hello,
Thanks for the reply. Currently, each client is writing about 470 packets
per second where each packet is 1500 bytes. I have four clients writing
simultaneously to the cluster. Each client is writing to a separate
keyspace simultaneously. Hence, is there a lot of switching of keyspaces?
> On the homepage of libQtCassandra, its mentioned that switching between
> keyspaces is costly when storing into Cassandra thereby affecting the write
> throughput. Is this necessarily true for other libraries like pycassa and
> hector as well?
>
>
When using the thrift connection the keyspac
Hello,
I have an application that writes network packets to a Cassandra cluster
from a number of client nodes. It uses the libQtCassandra library to access
Cassandra. On the homepage of libQtCassandra, its mentioned that switching
between keyspaces is costly when storing into Cassandra thereby affe
t;>> keyspaces (one for each company).
>>>
>>> One thing we are noticing is that nodetool repair across all of the
>>> keyspaces seems to increase linearly based on the number of keyspaces. For
>>> example, if we have a 6 node ec2 (m1.large) cluste
On Mon, Nov 25, 2013 at 12:28 PM, John Pyeatt wrote:
> Are you using Vnodes? We are and they are set to 256
> What version of cassandra are you running. We are running 1.2.9
>
Vnode performance vis a vis repair is this JIRA issue :
https://issues.apache.org/jira/browse/CASSANDRA-5220
Unfortunat
gt; One thing we are noticing is that nodetool repair across all of the
>> keyspaces seems to increase linearly based on the number of keyspaces. For
>> example, if we have a 6 node ec2 (m1.large) cluster across 3 Availability
>> Zones and create 20 keyspaces a nodetool repair -pr on one
rease linearly based on the number of keyspaces. For
> example, if we have a 6 node ec2 (m1.large) cluster across 3 Availability
> Zones and create 20 keyspaces a nodetool repair -pr on one node takes 3
> hours even with no data in any of the keyspaces. If I bump that up to 40
> keyspac
We have an application that has been designed to use potentially 100s of
keyspaces (one for each company).
One thing we are noticing is that nodetool repair across all of the
keyspaces seems to increase linearly based on the number of keyspaces. For
example, if we have a 6 node ec2 (m1.large
On Tue, May 22, 2012 at 4:56 AM, samal wrote:
> Not ideally, now cass has global memtable tuning. Each cf correspond to
> memory in ram. Year wise cf means it will be in read only state for next
> year, memtable will still consume ram.
An empty memtable seems unlikely to consume a meaningful am
27;t update previous years.
>>>
>>> cheers
>>>
>>>
>>>>
>>>> Cheers
>>>>
>>>> -
>>>> Aaron Morton
>>>> Freelance Developer
>>>> @aaronmorton
gt;>
>>> -
>>> Aaron Morton
>>> Freelance Developer
>>> @aaronmorton
>>> http://www.thelastpickle.com
>>>
>>> On 22/05/2012, at 6:58 PM, R. Verlangen wrote:
>>>
>>>> Yes, it does. However the
>> On 22/05/2012, at 6:58 PM, R. Verlangen wrote:
>>>
>>> Yes, it does. However there's no real answer what's the limit: it
>>> depends on your hardware and cluster configuration.
>>>
>>> You might even want to search the archives of this
nmorton
>> http://www.thelastpickle.com
>>
>> On 22/05/2012, at 6:58 PM, R. Verlangen wrote:
>>
>>> Yes, it does. However there's no real answer what's the limit: it depends
>>> on your hardware and cluster configuration.
&
nds on
>> your hardware and cluster configuration.
>>
>> You might even want to search the archives of this mailinglist, I remember
>> this has been asked before.
>>
>> Cheers!
>>
>> 2012/5/21 Luís Ferreira
>> Hi,
>>
>>
t;> On 22/05/2012, at 6:58 PM, R. Verlangen wrote:
>>
>> Yes, it does. However there's no real answer what's the limit: it depends
>> on your hardware and cluster configuration.
>>
>> You might even want to search the archives of this mailinglist, I
en wrote:
>
> Yes, it does. However there's no real answer what's the limit: it depends
> on your hardware and cluster configuration.
>
> You might even want to search the archives of this mailinglist, I remember
> this has been asked before.
>
> Cheers!
>
&
, I remember
> this has been asked before.
>
> Cheers!
>
> 2012/5/21 Luís Ferreira
>
>> Hi,
>>
>> Does the number of keyspaces affect the overall cassandra performance?
>>
>>
>> Cumprimentos,
>> Luís Ferreira
>>
>>
>>
>>
>
>
> --
> With kind regards,
>
> Robin Verlangen
> www.robinverlangen.nl
>
>
>
--
With kind regards,
Robin Verlangen
www.robinverlangen.nl
on
> your hardware and cluster configuration.
>
> You might even want to search the archives of this mailinglist, I remember
> this has been asked before.
>
> Cheers!
>
> 2012/5/21 Luís Ferreira
> Hi,
>
> Does the number of keyspaces affect the overall cass
Yes, it does. However there's no real answer what's the limit: it depends
on your hardware and cluster configuration.
You might even want to search the archives of this mailinglist, I remember
this has been asked before.
Cheers!
2012/5/21 Luís Ferreira
> Hi,
>
> Does the
Hi,
Does the number of keyspaces affect the overall cassandra performance?
Cumprimentos,
Luís Ferreira
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