> in a relational database), it's relatively straightforward to allow
> disabling the SlabAllocator.” Emphasis on “almost certainly a Bad Idea.”
>
> See:
> https://issues.apache.org/jira/browse/CASSANDRA-5935
> “Allow disabling slab allocation”
>
> -- Jack Krupansky
>
&g
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
ate : 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 would come up with (cql) tables with up to 100
>>> > columns; would that be a problem?
>>> >
>>> > Thank You,
>>> > Tommaso
>>> >
>>>
>>
>>
>
--
Sourabh Agrawal
Bangalore
+91 9945657973
What are the ideal values for coreConnectionsForRemote and
maxConnectionsForRemote in CQL Java Driver ( by Datastax).
--
Sourabh Agrawal
Bangalore
+91 9945657973
; On Mon, Mar 31, 2014 at 9:13 PM, Apoorva Gaurav <
>> apoorva.gau...@myntra.com> wrote:
>>
>>> Thanks Robert, Is there a workaround, as in our test setups we keep
>>> dropping and recreating tables.
>>>
>>
>> Use unique keyspace (or tabl
for this specific issue but tried it once
> earlier and found the performance slower than 1.x; isn't so?
>
>
> On Sat, Mar 29, 2014 at 3:30 PM, Sourabh Agrawal
> wrote:
>
>> Hi Apoorva,
>>
>> Do you always query on studentID only or do you need to que
ect * from marks_table where
>>> studentID = ?
>>>
>>> 3. model as (studentID int, subjectID int, marks int, PRIMARY
>>> KEY(studentID, subjectID) and query as select * from marks_table where
>>> studentID = ? and subjectID in (?, ?, ??) number of subjectIDs in
>>> query being ~1K.
>>>
>>> What can be the bottlenecks. Is it better if we model as (studentID int,
>>> subjct_marks_json text) and query by studentID.
>>>
>>> --
>>> Thanks & Regards,
>>> Apoorva
>>>
>>
>>
>
>
> --
> Thanks & Regards,
> Apoorva
>
--
Sourabh Agrawal
Bangalore
+91 9945657973
gt; On Wed, Feb 19, 2014 at 8:47 AM, Sourabh Agrawal
> wrote:
>
>> Below is CPU usage from top. I don't see any steal. Idle time is pretty
>> low.
>>
>> Cpu(s): 83.3%us, 14.5%sy, 0.0%ni, 0.5%id, 0.0%wa, 0.0%hi, 1.7%si,
>> 0.0%st
>>
>> An
you may want to
> consider paying for dedicated instances.
>
>
> On Wed, Feb 19, 2014 at 2:30 AM, Sourabh Agrawal
> wrote:
>
>> Hi,
>>
>> I am running cassandra 2.0.3 cluster on 4 AWS nodes. memory arguments are
>> the following for each node :
>> -Xms8G -
like CMS GC is running every 1-2 seconds.
Any pointers on how to debug this?
--
Sourabh Agrawal
Bangalore
+91 9945657973
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