Re: Cassandra 1.0 release date.

2011-10-13 Thread Nick Telford
The release vote is currently running, so, any time now. I believe the original target release date was October 8th; but that fell on a weekend and it's been delayed by a couple of regressions. Regards, Nick Telford On 13 October 2011 14:24, Iroiso iro...@live.com wrote: Hi all, Can anyone

Re: REST API?

2011-10-11 Thread Nick Telford
There are no plans to move to Maven for 2 reasons: 1) a majority of committers favour Ant; 2) if it aint broke, don't fix it. On 11 October 2011 03:33, Brian O'Neill b...@alumni.brown.edu wrote: Will do. I've picked up where Gary left off. It is good starting point, with a good mapping

Re: Deletion Based On Timestamp

2011-09-29 Thread Nick Telford
set on deleting columns by timestamp, your best bet is to build a Hadoop MapReduce job to do it for you. This will obviously be quite a heavy-handed approach, so it's something you should not be running very frequently. Regards, Nick Telford On 28 September 2011 15:21, Samarth Gahire samarth.gah

Re: Proposal: Moving CQL drivers

2011-09-09 Thread Nick Telford
It may be prudent to have someone to accept responsibility for each of the official drivers in Extras. This way we could have a single ticket (perhaps with sub-tickets for each driver) to ensure drivers are brought up to date for each release. This would be less about polluting the C* JIRA with

Re: Getting 1 specific column

2011-07-28 Thread Nick Telford
Yes, that's fine. This is a question for the users@ list. The dev@ list is for development of Cassandra itself. Regards, Nick Telford On 28 July 2011 10:56, Eldad Yamin elda...@gmail.com wrote: Hello, Is it acceptable (in Cassandra terms) to get only 1 specific column? I know that I can

Re: Getting 1 specific column

2011-07-28 Thread Nick Telford
Yes that's fine. Also, this is a question for the users list. The dev list is for development of Cassandra itself. Regards, Nick Telford On 28 July 2011 10:56, Eldad Yamin elda...@gmail.com wrote: Hello, Is it acceptable (in Cassandra terms) to get only 1 specific column? I know that I can

Re: internal ntp

2011-06-17 Thread Nick Telford
The timestamp of a column is an arbitrary version number, the value of which is determined by the client that created the column. It's merely convention (and convenience) that clients use the current timestamp. Since the timestamp is a client-concern, and in non-trivial topologies Cassandra may

Some thoughts on client abstraction and connection pooling

2011-04-01 Thread Nick Telford
what you think. Would such an abstraction be useful? Is this something worth pursuing? -- Nick Telford

Re: Cassandra documentation (and in this case the datastax anti-entropy docs)

2011-03-31 Thread Nick Telford
Peter's post, feel free to tear them apart if you disagree. Just do it nicely. Regards, Nick Telford On 31 March 2011 17:58, Peter Schuller peter.schul...@infidyne.com wrote: In response to the apparent mass confusion about nodetool repair that became evidence in the thread: http://www.mail

Re: Cassandra documentation (and in this case the datastax anti-entropy docs)

2011-03-31 Thread Nick Telford
...@rackspace.com wrote: On Thu, 2011-03-31 at 18:57 +0100, Nick Telford wrote: I don't think the Wiki is the right place for community maintained user docs; it doesn't have the necessary structure. The wiki is great at what wikis are great at, lowering the barrier to contribution

Re: PHP Cassandra CQL driver

2011-03-29 Thread Nick Telford
list. Regards, Nick Telford On 29 March 2011 10:34, Courtney Robinson sa...@live.co.uk wrote: Okay, Dave Gardner, Nick Telford and myself met at the London Cassandra meetup. We were keen on getting a PHP CQL driver done and decided to use github while working on it. This mail is mainly

Heap usage: Some clarification

2011-02-04 Thread Nick Telford
]: http://www.ibm.com/developerworks/java/library/j-nativememory-linux/ Cheers, Nick Telford

Re: Need help for starting on Cassendra

2011-01-24 Thread Nick Telford
architecture paper that describes the internal architecture used by Cassandra. Regards, Nick Telford On 24 January 2011 09:33, Zhijie Shen zjshe...@gmail.com wrote: Oh, GSoC 2011 has started! I'm also interested in it:-) There were a number of ideas proposed in the last year. I can see some of them

Re: Order preserving partitioning strategy

2010-08-24 Thread Nick Telford
The trade-off is in choosing which property you need: order preservation or even load distribution. The only reason a hybrid partitioner doesn't exist is that no one has been able to create one. If you can create a partitioner that allows ordering whilst ensuring an even load distribution, by all

Re: Locking in cassandra

2010-08-16 Thread Nick Telford
Hi Maifi, This is the expected behaviour for updating a value - the newest value always wins in the event of a conflict (e.g. after two partitions converge). Your use case is that of incrementing counters, which is not something that is easily solved in Cassandra at the moment. There are issues