Re: Commit log + Data directory on same partition (software raid)

2012-08-11 Thread Tom Duffield
Having the both the commit log and data directory on the same volume is generally not recommended. You would actually see a performance decrease unless you can have most your reads be cache hits. On Friday, August 10, 2012, Thibaut Britz wrote: > Hi, > > Has anyone of you made some experience wit

Forward compatibility for CQL3 composite columns

2012-06-12 Thread Tom Duffield (Mailing Lists)
Is there documentation on a way to create a pre-CQL3 composite column CF with indexing that will be compatible with the built-in composite column capabilities in CQL3? -- Tom Duffield Sent with Sparrow (http://www.sparrowmailapp.com/?sig)

Re: Cassandra 1.0.6 multi data center read question

2012-05-18 Thread Tom Duffield (Mailing Lists)
PROD system. Unless you manage your Cassandra ring closely, other CONSISTENCY settings could result in data being read from DR. Hope this helps! Tom -- Tom Duffield (Mailing Lists) Sent with Sparrow (http://www.sparrowmailapp.com/?sig) On Friday, May 18, 2012 at 12:51 AM, Roshan wrote

Re: How do I add a custom comparator class to a cassandra cluster ?

2012-05-14 Thread Tom Duffield (Mailing Lists)
Kirk is correct. -- Tom Duffield (Mailing Lists) Sent with Sparrow (http://www.sparrowmailapp.com/?sig) On Monday, May 14, 2012 at 1:41 PM, Kirk True wrote: > Disclaimer: I've never tried, but I'd imagine you can drop a JAR > containing the class(es) into the lib directo

Using CNAMEs for broadcast_address

2012-05-01 Thread Tom Duffield
Hey, There is a push to use Akamai IPA to accelerate traffic between our Cassandra nodes. Ignoring all other complexities this introduces, is it possible to use CNAMEs for broadcast addresses? I'm also assuming this restricts us to using only the PropertyFileSnitch (since we are not strictly in the

Cassandra Network Protocols

2012-04-16 Thread Tom Duffield (Mailing Lists)
When you submit a write request with a constancy of EACH_QUORUM, what network protocol does Cassandra use to write the data to the other DCs? Similarly, what network protocol does Cassandra use when writing data as part of replication? -- Tom Duffield (Mailing Lists) Sent with Sparrow