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 wrote: > Hi all, >

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 wrote: > Will do. I've picked up where Gary left off. It is good starting point, > with a good mapping between REST and get/set

Re: wiki updates

2011-10-06 Thread Nick Telford
wiki.apache.org/cassandra/Counters) we should probably replace those with the appropriate CQL wherever applicable. Regards, Nick Telford On 6 October 2011 12:29, aaron morton wrote: > With 1.0 almost here I was going to try and spruce up the wiki a bit to > make things a little more we

Re: Deletion Based On Timestamp

2011-09-29 Thread Nick Telford
list. If you have your heart 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 201

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 im

Re: Connection Pooling

2011-08-25 Thread Nick Telford
Connection pooling is a client concern, are you referring to a particular CQL driver or high-level client? If so, which one? On 25 August 2011 13:07, Vivek Mishra wrote: > Any plan for connection pooling? is it already in place? > > -Vivek >

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 wrote: > Hello, > Is it acceptable (in Cassandra terms) to get only 1 specific column? > I know that I

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 wrote: > Hello, > Is it acceptable (in Cassandra terms) to get only 1 specific column? > I know that I can g

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 not

Some thoughts on client abstraction and connection pooling

2011-04-01 Thread Nick Telford
to discussion among the various client devs to see 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
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 >

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

2011-03-31 Thread Nick Telford
some ideas I had while reading 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 wrote: > In response to the apparent mass confusion about nodetool repair that > became evidence in the threa

Re: PHP Cassandra CQL driver

2011-03-29 Thread Nick Telford
er than add to the noise on the dev list. Regards, Nick Telford On 29 March 2011 10:34, Courtney Robinson 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 wor

Heap usage: Some clarification

2011-02-04 Thread Nick Telford
int me in the right direction. [1]: 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
#x27;s an application architecture paper that describes the internal architecture used by Cassandra. Regards, Nick Telford On 24 January 2011 09:33, Zhijie Shen wrote: > Oh, GSoC 2011 has started! I'm also interested in it:-) > > There were a number of ideas proposed in the last year. I ca

Re: Time for 1.0

2011-01-13 Thread Nick Telford
t's just a mirror of the Riptano docs. In order to indicate that the release is ready for the general public we need to have the resources readily available to help them figure out what Cassandra is and how to use Cassandra properly. To summarise: +0.5 Regards, Nick Telford On 13 January

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 issue