Re: Consistency Levels

2014-10-08 Thread William Katsak
clear, even QUORUM write is eventual consistency - to all nodes beyond the immediate quorum. -- Jack Krupansky -Original Message- From: William Katsak Sent: Wednesday, October 8, 2014 12:27 PM To: user@cassandra.apache.org Subject: Consistency Levels Hello, I was wondering if anyone

Consistency Levels

2014-10-08 Thread William Katsak
Hello, I was wondering if anyone (Datastax?) has any usage data about consistency levels. For example, what consistency levels are real applications using in real production scenarios. Who is using eventual consistency (ONE-ONE) in production vs strong consistency (QUORUM-QUORUM, ONE-ALL). Ob

Re: high pending compactions

2014-06-08 Thread William Katsak
Have you verified that these aren't "stuck compactions"? e.g. even under no load, they don't go away? -Bill On 06/08/2014 12:32 PM, Jake Luciani wrote: 2&3 On Sunday, June 8, 2014, S C mailto:as...@outlook.com>> wrote: I am using Cassandra 1.1 (sorry bit old) and I am seeing high pe

Re: Provisioning/Configuration Question

2014-03-01 Thread William Katsak
2014 14:33, "William Katsak" mailto:wkat...@cs.rutgers.edu>> wrote: Hello, I am doing some academic work with Cassandra 1.1.6 (I am on an older version because of a bunch of implemented modifications that have been in the works for a while), and I am wondering if

Provisioning/Configuration Question

2014-03-01 Thread William Katsak
Hello, I am doing some academic work with Cassandra 1.1.6 (I am on an older version because of a bunch of implemented modifications that have been in the works for a while), and I am wondering if the list can help me resolve some questions I have. I am running a cluster of 27 nodes with the foll