Re: Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread Vladimir Yudovin
Hi Prasenjit, I would like to get the replication factors of the key-spaces using the strategies in the same way we get the replication factors for Simple and NetworkTopology. Actually LocalSarategy has no replication factor: SELECT * FROM system_schema.keyspaces WHERE keyspace_name IN ('syste

Re: Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread Prasenjit Sarkar
Thanks, Jemeriah. I'm aware of the change, we will use JIRAs to contribute back to the community. Prasenjit On Fri, Oct 7, 2016 at 2:31 PM, J. D. Jordan wrote: > The Python driver does support it, it is supported as a custom strategy. I > was the one to implement it in > > https://datastax-oss

Re: Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread J. D. Jordan
The Python driver does support it, it is supported as a custom strategy. I was the one to implement it in https://datastax-oss.atlassian.net/browse/PYTHON-191 It makes the class for it on the fly. Not sure what else you want it to do, but if you have a suggestion for an improvement to a specif

Question regd CDC in cassandra 3.7+

2016-10-07 Thread sridhar nemani
Hi, I am fairly new to Cassandra. I have a requirement to be able to read any changes to tables, as in inserts deletes or updates from a given timestamp onwards. I believe the new implementation of CDC should help me with this. However, with CDC enabled, I want to know if there is yet a way to r

Re: Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread Prasenjit Sarkar
Thanks Vlad and Jeremiah. There were questions about support, so let me address that in more detail. If I look at the latest Cassandra python driver, the support for LocalStrategy is very limited (code snippet shown below) and the support for EverywhereStrategy is non-existent. By limited I mean

Re: Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread Jeremiah D Jordan
What kind of support are you thinking of? All drivers should support them already, drivers shouldn’t care about replication strategy except when trying to do token aware routing. But since anyone can make a custom replication strategy, drivers that do token aware routing just need to handle fal

Re: Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread Vladimir Yudovin
Do you mean org.apache.cassandra.locator.LocalStrategy? If yes it's standard Cassandra strategy use for system and system_schema keyspaces. Best regards, Vladimir Yudovin, Winguzone - Hosted Cloud Cassandra on Azure and SoftLayer. Launch your cluster in minutes. On Fri, 07 Oct 2016 14:0

Proprietary Replication Strategies: Cassandra Driver Support

2016-10-07 Thread Prasenjit Sarkar
Hi everyone, To the best of my understanding that Datastax has proprietary replication strategies: Local and Everywhere which are not part of the open source Apache Cassandra project. Do we know of any plans in the open source Cassandra driver community to support these two replication strategies

Re: [VOTE] Release Apache Cassandra 2.1.16

2016-10-07 Thread Jason Brown
Ahh, sorry. I was +1'ing the proposed sha1 of 87034cd On Friday, October 7, 2016, Michael Shuler wrote: > On 10/07/2016 08:52 AM, Jason Brown wrote: > > +1 > > Jason, is this a vote for the proposed sha1: 87034cd release for 2.1.16, > or a comment to Romain? (gmail lacks some In-Reply-To/Refere

Re: [VOTE] Release Apache Cassandra 2.1.16

2016-10-07 Thread Michael Shuler
On 10/07/2016 08:52 AM, Jason Brown wrote: > +1 Jason, is this a vote for the proposed sha1: 87034cd release for 2.1.16, or a comment to Romain? (gmail lacks some In-Reply-To/References intelligence sometimes, so just clarifying) > On Thu, Oct 6, 2016 at 3:45 PM, Romain Hardouin > wrote: > >> I'

Re: [VOTE] Release Apache Cassandra 2.1.16

2016-10-07 Thread Jason Brown
+1 On Thu, Oct 6, 2016 at 3:45 PM, Romain Hardouin wrote: > Hi, > I use the "current 2.1.16" (commit cdd535fcac4ba79bb371e8373c6504d9e3978853) > on > production in 5 DCs (82 nodes) out of 7 and it works well!I've just had to > add a MBean to track changes of the NTR queue length on top of cdd53