Re: Proprietary Replication Strategies: Cassandra Driver Support

FYI there is an everywhere strategy waiting to be accepted: https://issues.apache.org/jira/browse/CASSANDRA-12629 On Sat, 8 Oct 2016 at 10:56 Vladimir Yudovin wrote: Well, it can be useful in some scenarios - e.g. temporary tables on nearest or the same node. Best

Re: Proprietary Replication Strategies: Cassandra Driver Support

Well, it can be useful in some scenarios - e.g. temporary tables on nearest or the same node. Best regards, Vladimir Yudovin, Winguzone - Hosted Cloud Cassandra on Azure and SoftLayer. Launch your cluster in minutes. On Sat, 08 Oct 2016 13:44:00 -0400 Jeff Jirsajji...@gmail.com wrote

Re: Proprietary Replication Strategies: Cassandra Driver Support

I'm sure that's what he meant, I just disagree that it sounds useful -- Jeff Jirsa > On Oct 8, 2016, at 10:33 AM, Vladimir Yudovin wrote: > > As far as I understand Edward meant to have option determinate actual storage > node on client side, by driver, disregarding

Re: Re: Proprietary Replication Strategies: Cassandra Driver Support

As far as I understand Edward meant to have option determinate actual storage node on client side, by driver, disregarding key hash/tokens mechanism. Best regards, Vladimir Yudovin, Winguzone - Hosted Cloud Cassandra on Azure and SoftLayer. Launch your cluster in minutes. On Sat, 08

Re: Proprietary Replication Strategies: Cassandra Driver Support

That sounds awful, especially since you could just use SimpleStrategy with RF=1 and then bootstrap / decom would handle resharding for you as expected. -- Jeff Jirsa > On Oct 8, 2016, at 10:09 AM, Edward Capriolo wrote: > > I have contemplated using LocalStrategy as a

Re: Proprietary Replication Strategies: Cassandra Driver Support

I have contemplated using LocalStrategy as a "do it yourself client side sharding system". On Sat, Oct 8, 2016 at 12:37 AM, Vladimir Yudovin wrote: > Hi Prasenjit, > I would like to get the replication factors of the key-spaces using the > strategies in the same way we get

Re: Proprietary Replication Strategies: Cassandra Driver Support

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

Re: Proprietary Replication Strategies: Cassandra Driver Support

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

Re: Proprietary Replication Strategies: Cassandra Driver Support

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

Re: Proprietary Replication Strategies: Cassandra Driver Support

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

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

Re: Proprietary Replication Strategies: Cassandra Driver Support

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