Re: Cassandra Data Stax java driver Snappy Compression library

2015-08-02 Thread Janne Jalkanen
No, this just tells that your client (S3 using Datastax driver) cannot communicate to the Cassandra cluster using a compressed protocol, since the necessary libraries are missing on the client side. Servers will still compress the data they receive when they write it to disk. In other words

Scientific Paper of Gossip Protocol

2015-08-02 Thread Thouraya TH
Hi all, Please, is there Scientific Paper of Gossip Protocol (algorithm) used by cassandra i need a paper published in a conference or in a journal. ? Thank you so much for help. Kind Regards.

Re: Scientific Paper of Gossip Protocol

2015-08-02 Thread Bharatendra Boddu
Cassandra is based on Scuttle-butt protocol. Reference: Robbert van Renesse, Dan Mihai Dumitriu, Valient Gough, and Chris Thomas. Efficient reconciliation and flow control for anti-entropy protocols. In Proceedings of the 2nd Large Scale Distributed Systems and Middleware Workshop (LADIS '08) -

Re: Cassandra Data Stax java driver Snappy Compression library

2015-08-02 Thread Sachin Nikam
Thanks Janne... To clarify, Service S3 should not run in to any issues and I may choose to not fix the issue? Regards Sachin On Sat, Aug 1, 2015 at 11:50 PM, Janne Jalkanen janne.jalka...@ecyrd.com wrote: No, this just tells that your client (S3 using Datastax driver) cannot communicate to the

GossipingPropertyFileSnitch vs Ec2Snitch

2015-08-02 Thread John Wong
Hi Based on * http://docs.datastax.com/en/cassandra/2.0/cassandra/architecture/architectureSnitchEC2_t.html * http://docs.datastax.com/en/cassandra/2.0/cassandra/architecture/architectureSnitchGossipPF_c.html What other benefits can Ec2Snitch provide in a single-region, multi-az AWS deployment

linearizable consistency / Paxos ?

2015-08-02 Thread Yang
this link http://www.datastax.com/dev/blog/lightweight-transactions-in-cassandra-2-0 talks about linearizable consistency and lightweight transactions. but I am still not completely following it , just based on the article itself. the standard replication protocol in Cassandra does establish a