Thanks Sean and Nirmallaya. @Jack, We are going with DSC right now and plan to use spark and later solr over the analytics DC. The use case is to have olap and oltp workloads separated and not intertwine them, whether it is achieved by creating a new DC or a new cluster altogether. From Nirmallaya's and Sean's answer I could understand that its easily achievable by creating a separate DC, app client will need to be made DC aware and it should not make a coordinator in dc3. And same goes for spark configuration, it should read from 3rd DC. Correct me if I'm wrong.
On Mar 4, 2016 7:55 PM, "Jack Krupansky" <jack.krupan...@gmail.com> wrote: > > DataStax Enterprise (DSE) should be fine for three or even four data centers in the same cluster. Or are you talking about some custom Solr implementation? > > -- Jack Krupansky > > On Fri, Mar 4, 2016 at 9:21 AM, <sean_r_dur...@homedepot.com> wrote: >> >> Sure. Just add a new DC. Alter your keyspaces with a new replication factor for that DC. Run repairs on the new DC to get the data streamed. Then make sure your clients only connect to the DC(s) that they need. >> >> >> >> Separation of workloads is one of the key powers of a Cassandra cluster. >> >> >> >> You may want to look at different configurations for the analytics cluster – smaller replication factor, more memory per node, more disk per node, perhaps less vnodes. Others may chime in with their experience. >> >> >> >> >> >> Sean Durity >> >> >> >> From: Bhuvan Rawal [mailto:bhu1ra...@gmail.com] >> Sent: Friday, March 04, 2016 3:27 AM >> To: user@cassandra.apache.org >> Subject: How to create an additional cluster in Cassandra exclusively for Analytics Purpose >> >> >> >> Hi, >> >> >> >> We would like to create an additional C* data center for batch processing using spark on CFS. We would like to limit this DC exclusively for Spark operations and would like to continue the Application Servers to continue fetching data from OLTP. >> >> >> >> Is there any way to configure the same? >> >> >> >> >> >> >> Regards, >> >> Bhuvan >> >> >> ________________________________ >> >> The information in this Internet Email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this Email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this Email are subject to the terms and conditions expressed in any applicable governing The Home Depot terms of business or client engagement letter. The Home Depot disclaims all responsibility and liability for the accuracy and content of this attachment and for any damages or losses arising from any inaccuracies, errors, viruses, e.g., worms, trojan horses, etc., or other items of a destructive nature, which may be contained in this attachment and shall not be liable for direct, indirect, consequential or special damages in connection with this e-mail message or its attachment. > >
