Re: Ruby, CQL and client libraries

/cassandra-cql [2] - http://code.google.com/a/apache-extras.org/p/cassandra-ruby/ [3] - https://gist.github.com/1185026 [4] - https://gist.github.com/1363336 Robert Jackson

Re: Continuous export of data out of database

. [1] - http://www.datastax.com/dev/blog/deploying-cassandra-across-multiple-data-centers Robert Jackson - Original Message - | From: A J s5a...@gmail.com | To: user@cassandra.apache.org | Sent: Tuesday, November 15, 2011 11:20:33 AM | Subject: Continuous export of data out

Re: Continuous export of data out of database

(the read/write would fail). Unfortunately , I can't think of another solution with Cassandra itself. You could use some sort of client side queueing and keep the two clusters separated completely. This would probably add quite a bit of complexity to your app... Robert Jackson - Original

Re: Will writes with ALL consistency eventually propagate?

documented/explained or is | this a black box that I am slowly wading into? Take a look at: http://www.datastax.com/dev/blog/deploying-cassandra-across-multiple-data-centers Robert Jackson

Re: Second Cassandra users survey

. To take that even further if we could couple that ability with the current composite column functionality then we could get an efficient count of columns containing a particular prefix. Robert Jackson

Re: Is Cassandra suitable for this use case?

I believe this is conceptually similar to what Brisk is doing under CassandraFS (HDFS compliant file system on top of cassandra). Robert Jackson [1] - https://github.com/riptano/brisk - Original Message - From: Sasha Dolgy sdo...@gmail.com To: user@cassandra.apache.org Sent

Re: Is Cassandra suitable for this use case?

titled Introduction to Brisk that reviews some of the HDFS compatibility. [1] http://www.datastax.com/events/cassandrasf2011/presentations Robert Jackson - Original Message - From: Ruby Stevenson ruby...@gmail.com To: user@cassandra.apache.org Sent: Thursday, August 25, 2011 2:50

Re: get_range_slices( start=null, end=null ) ??

You should be able to specify the count parameter to your KeyRange and just use the last key returned as your start_key for the next page. Sent from my iPhone On Aug 4, 2011, at 5:00 PM, Yang tedd...@gmail.com wrote: our keyspace is really not that big, about 1million rows, each about

Re: range query vs slice range query

a single query you will be returned all the rows where the returned row key's md5 is between the md5 of the start row key and stop row key. Reference: http://wiki.apache.org/cassandra/FAQ - Why aren't range slices/sequential scans giving me the expected results? Robert Jackson

Re: How to make use of Cassandra raw row keys?

to get_range it will continue querying in batches (of 100 by default) until the requested number of rows are returned. Hope this sheds some light on the cassandra gem internals... Robert Jackson Sent from my iPhone On May 25, 2011, at 6:22 PM, aaron morton aa...@thelastpickle.com wrote: Hard

Re: Specifying exact nodes for Consistency Levels

datacenter as described in the Brisk white paper. References: http://www.datastax.com/docs/0.7/operations/datacenter http://www.datastax.com/wp-content/uploads/2011/03/WP-Brisk.pdf Robert Jackson - Original Message - From: A J s5a...@gmail.com To: user@cassandra.apache.org Sent