Re: How is Cassandra being used?

2011-11-16 Thread Ryan King
On Wed, Nov 16, 2011 at 10:02 AM, Jonathan Ellis jbel...@gmail.com wrote: Sounds like the consensus is that if this is a good idea at all, it needs to be opt-in.  Like I said earlier, I can live with that. In addition, if you want to get data from large companies that manage their own

Re: Cassandra Pig with network topology and data centers.

2011-07-29 Thread Ryan King
It'd be great if we had different settings for inter- and intra-DC read repair. -ryan On Fri, Jul 29, 2011 at 5:06 PM, Jake Luciani jak...@gmail.com wrote: Yes it's read repair you can lower the read repair chance to tune this. On Jul 29, 2011, at 6:31 PM, Aaron Griffith

Re: set rpc_timeout_in_ms via jmx?

2011-07-18 Thread Ryan King
On Sat, Jul 16, 2011 at 12:30 PM, Jeremy Hanna jeremy.hanna1...@gmail.com wrote: I don't see a way in DatabaseDescriptor to set the rpc_timeout_in_ms via jmx. It doesn't seem possible right now. Is there any reason why that couldn't be set via jmx?  It seems like a rolling restart to update

Re: Cassandra 1.0

2011-06-16 Thread Ryan King
I think maybe 4 months was too short? Do we optimistically want to try that again or plan on taking a bit more time? Either way I'm happy to have a plan. :) -ryan On Thu, Jun 16, 2011 at 9:11 AM, Jonathan Ellis jbel...@gmail.com wrote: +1 On Thu, Jun 16, 2011 at 7:36 AM, Sylvain Lebresne

dapper-style tracing in cassandra

2011-06-14 Thread Ryan King
I'll open a ticket on this soon, but I'd like to start a discussion first. We're working on a distributed tracing system, whose design is somewhat inspired by the Google Dapper paper [1]. We have instrumented a bunch of our internal services through our custom networking stack [2]. In a

Re: dapper-style tracing in cassandra

2011-06-14 Thread Ryan King
On Tue, Jun 14, 2011 at 2:02 PM, Jonathan Ellis jbel...@gmail.com wrote: Sounds a lot like https://issues.apache.org/jira/browse/CASSANDRA-1123. The main change you'd want is to allow passing an external trace ID. Yeah, that patch seems like a good start. In addition to passing an external

Re: Updating cassandra RubyGem for 0.8 CQL

2011-04-28 Thread Ryan King
This is awesome. I'll work to get it merged. -ryan On Wed, Apr 27, 2011 at 8:36 PM, Robert Jackson robe...@promedicalinc.com wrote: I have just finished these updates. The following changes/new features have been made: * Update Rakefile to install 0.6.13, 0.7.4, 0.8.0-beta1 to

Re: Maintenance releases

2011-02-11 Thread Ryan King
On Fri, Feb 11, 2011 at 8:35 AM, Gary Dusbabek gdusba...@gmail.com wrote: I've been uncomfortable with the amount of features I perceive are going into our maintenance releases for a while now.  I thought it would stop after we committed ourselves to having a more predictable major release

Re: Does Ruby library returns the RowKey?

2011-02-10 Thread Ryan King
On Thu, Feb 10, 2011 at 2:17 AM, Joshua Partogi joshua.j...@gmail.com wrote: Hi, Does the Ruby library currently returns the RowKey during a row get? From what I am seeing it seems like it is only returning an OrderedHash of the columns. Would it be possible to return the RowKey, or it

Re: Monitoring Cluster with JMX

2011-02-09 Thread Ryan King
If you're using 0.7, I'd skip jmx and use the mx4j http interface then write scripts that convert the data to the format you need. -ryan On Wed, Feb 9, 2011 at 2:47 AM, Roland Gude roland.g...@yoochoose.com wrote: Unfortunately not, as the nagios JMX check expects a numeric return value and

Re: Proposal: fixed release schedule

2011-01-20 Thread Ryan King
On Thu, Jan 20, 2011 at 8:39 AM, Eric Evans eev...@rackspace.com wrote: On Wed, 2011-01-19 at 10:29 -0600, Jonathan Ellis wrote: On Tue, Jan 18, 2011 at 12:36 PM, Eric Evans eev...@rackspace.com wrote: The discussion seems to be petering out and I wonder if that means folks are still trying

Re: Time for 1.0

2011-01-14 Thread Ryan King
On Thu, Jan 13, 2011 at 7:32 PM, Jonathan Ellis jbel...@gmail.com wrote: ... In other words, at some point you have so many production users that it's silly to pretend it's ready for 1.0.  I'd say we've passed that point. Did you mean to say silly to pretend it's *not* ready for 1.0?

Re: Time for 1.0

2011-01-13 Thread Ryan King
I'm a -1 on naming the next release 1.0 because I don't think it has the quality that 1.0 implies, but to be honest I don't really care that much. The version numbers don't really effect those that of use that are running production clusters. Calling it 1.0 won't make it any more stable or faster.

Proposal: fixed release schedule

2011-01-13 Thread Ryan King
I think many believe that shipping 0.7 took longer than it should. Rather than going into why that happened, I'd like to propose a better way to move forward that will hopefully allow us to ship on a more predictable schedule. This proposal is heavily influenced by the google chrome release

Re: Proposal: fixed release schedule

2011-01-13 Thread Ryan King
implemented #1072 twice for 0.6 and 0.7) 4, back porting features is risky and causes bugs, esp with the limited QA available -ryan On Thu, Jan 13, 2011 at 2:32 PM, Ryan King r...@twitter.com wrote: I think many believe that shipping 0.7 took longer than it should. Rather than going into why

Re: Proposal: fixed release schedule

2011-01-13 Thread Ryan King
On Thu, Jan 13, 2011 at 4:04 PM, Jonathan Ellis jbel...@gmail.com wrote: On Thu, Jan 13, 2011 at 2:32 PM, Ryan King r...@twitter.com wrote: # Fixed schedule We should set a fixed schedule and stick to it. Anything features not ready at branch time won't make it and will be disabled

Re: [VOTE] 7.0

2011-01-06 Thread Ryan King
+1 non-binding -ryan On Thu, Jan 6, 2011 at 10:24 AM, Jonathan Ellis jbel...@gmail.com wrote: +1 for reals On Jan 6, 2011 11:14 AM, Eric Evans eev...@rackspace.com wrote: RC 4 seems to be holding up OK, shall we? I propose the following for release as 0.7.0 (aka For Reals Yo). SVN:

Re: Coordinated testing for 0.7

2010-12-01 Thread Ryan King
I'd be happy to host a hackathon at Twitter HQ in SF for this. Anyone interested in that? -ryan On Wed, Dec 1, 2010 at 7:18 PM, Jeremy Hanna jeremy.hanna1...@gmail.com wrote: Perhaps the time could be better spent trying to beef up the integration tests and looking for ways to root out

Distributed Counters Use Cases

2010-10-06 Thread Ryan King
In the spirit of making sure we have clear communication about our work, I'd like to outline the use cases Twitter has for distributed counters. I expect that many of you using Cassandra currently or in the future will have similar use cases. The first use case is pretty simple: high scale

Re: [DISCUSSION] High-volume counters in Cassandra

2010-09-28 Thread Ryan King
Sorry, been catching up on this. From Twitter's perspective, 1546 is probably insufficient because it doesn't allow one to do time-series data without supercolumns (which might work ok, but require a good deal of work). Additionally, one of our deployed systems already does supercolumns of

Re: Locking in cassandra

2010-08-16 Thread Ryan King
On Mon, Aug 16, 2010 at 6:07 AM, Maifi Khan maifi.k...@gmail.com wrote: Hi How is the locking implemented in cassandra? Say, I have 10 nodes and I want to write to 6 nodes which is (n+1)/2. Not to be too pedantic, but you're misunderstanding how to use cassandra. When we talk about 'n' we mean