Re: Run Mixed Workload using two instances on one node

2015-03-17 Thread Anuj Wadehra
...@yahoo.co.in] Sent: Tuesday, March 17, 2015 1:36 AM To: Ali Akhtar; user@cassandra.apache.org Subject: Re: Run Mixed Workload using two instances on one node   I understand that 2 instances on one node looks a weird solution. But can have dedicated reporting nodes for big customers

RE: Run Mixed Workload using two instances on one node

2015-03-17 Thread SEAN_R_DURITY
, Big Data Team From: Anuj Wadehra [mailto:anujw_2...@yahoo.co.in] Sent: Tuesday, March 17, 2015 1:29 PM To: user@cassandra.apache.org Subject: Re: Run Mixed Workload using two instances on one node Thanks Sean. Are you using 2 Cassandra instances on single node in PRODUCTION environment? Yes. We

RE: Run Mixed Workload using two instances on one node

2015-03-17 Thread SEAN_R_DURITY
, if needed, to keep writes and data size minimized there. Sean Durity – Cassandra Admin, Big Data Team From: Anuj Wadehra [mailto:anujw_2...@yahoo.co.in] Sent: Tuesday, March 17, 2015 1:36 AM To: Ali Akhtar; user@cassandra.apache.org Subject: Re: Run Mixed Workload using two instances on one

Run Mixed Workload using two instances on one node

2015-03-16 Thread Anuj Wadehra
Hi, We are trying to Decouple our Reporting DB from OLTP. Need urgent help on the feasibility of proposed solution for PRODUCTION. Use Case: Currently, our OLTP and Reporting application and DB are same. Some CF are used for both OLTP and Reporting while others are solely used for

Re: Run Mixed Workload using two instances on one node

2015-03-16 Thread Ali Akhtar
I don't think its recommended to have two instances on the same node. Have you considered using something like elasticsearch for the reports? Its designed for that sort of thing. On Mar 17, 2015 8:07 AM, Anuj Wadehra anujw_2...@yahoo.co.in wrote: Hi, We are trying to Decouple our Reporting

Re: Run Mixed Workload using two instances on one node

2015-03-16 Thread Anuj Wadehra
I understand that 2 instances on one node looks a weird solution. But can have dedicated reporting nodes for big customers but not for small customers. My questions would be:1. What is the technical reasoning? What problems you foresee  if we use 2 C* instances on one node in production? We