Re: Cassandra users survey

2009-11-21 Thread Chris Were
Hi Jonathan, Firstly, thanks for all your help on this list. Without lots of your solutions / tips etc I probably wouldn't be using Cassandra. I've built a real-time search engine based around all the links that appear on twitter (http://www.mozzler.com/). Cassandra is my data store for all the

Re: Timeout Exception

2009-11-16 Thread Chris Were
:53 PM, Chris Were chris.w...@gmail.com wrote: On Tue, Nov 10, 2009 at 11:50 AM, Jonathan Ellis jbel...@gmail.com wrote: On Tue, Nov 10, 2009 at 1:49 PM, Chris Were chris.w...@gmail.com wrote: Maybe... but it's not just multigets, it also happens when retreiving one row

Re: Timeout Exception

2009-11-14 Thread Chris Were
not a fix, but at least something... On Mon, Nov 9, 2009 at 11:25 PM, Chris Were chris.w...@gmail.com wrote: I'm getting a Timeout Exception every now and again (currently every couple of minutes or so). Using revision 833288. Quorum set to ONE. My cassandra instance has been running for two

Re: backing up data from cassandra

2009-11-14 Thread Chris Were
Better late than never... ticket created. On Thu, Oct 29, 2009 at 4:33 AM, Jonathan Ellis jbel...@gmail.com wrote: programatically, yes, but nodeprobe doesn't expose that yet. Feel free to create a ticket. On Thu, Oct 29, 2009 at 4:20 AM, Chris Were chris.w...@gmail.com wrote

Re: [VOTE] Website

2009-11-11 Thread Chris Were
+1 Awesome On Wed, Nov 11, 2009 at 2:14 PM, Mark Vigeant mark.vige...@riskmetrics.comwrote: I agree, that’s awesome. +1

Re: Timeout Exception

2009-11-10 Thread Chris Were
On Tue, Nov 10, 2009 at 11:34 AM, Jonathan Ellis jbel...@gmail.com wrote: On Tue, Nov 10, 2009 at 1:23 PM, Chris Were chris.w...@gmail.com wrote: It seems odd that the error sometimes says received 1 response, but it still times out, as I only have one node. if it gets a response between

Re: Timeout Exception

2009-11-10 Thread Chris Were
, something is broken is it consistent as to which keys this happens on? try turning on debug logging and seeing where the latency is coming from. On Tue, Nov 10, 2009 at 1:53 PM, Chris Were chris.w...@gmail.com wrote: On Tue, Nov 10, 2009 at 11:50 AM, Jonathan Ellis jbel...@gmail.com

Timeout Exception

2009-11-09 Thread Chris Were
I'm getting a Timeout Exception every now and again (currently every couple of minutes or so). Using revision 833288. Quorum set to ONE. My cassandra instance has been running for two days and the data directory is around 16GB. I'm not sure what the problem is, but let me know of any tests I can

Re: backing up data from cassandra

2009-10-29 Thread Chris Were
Is it possible to only backup selected column families? On Wed, Oct 7, 2009 at 8:15 AM, Jonathan Ellis jbel...@gmail.com wrote: I don't really see nodeprobe snapshot and mv snapshotdir/* livedir as all that much harder, but maybe that's just me. for a cluster, just add dsh. -Jonathan On

Re: HBase vs. Cassandra: new article!

2009-10-29 Thread Chris Were
Any chance of posting the factual errors publicly? Even in an abbreviated form on the wiki under common misconceptions or similar would be useful. Such a list would potentially be useful to new cassandra users and also debunk myths that come about as a result of articles like this, or even

Re: Cassandra Fatal Exceptions

2009-10-05 Thread Chris Were
into a regression. that's the risk you run on trunk. :) Could you open a ticket for this on https://issues.apache.org/jira/browse/CASSANDRA ? -Jonathan On Mon, Oct 5, 2009 at 5:32 PM, Chris Were chris.w...@gmail.com wrote: Hi, I updated from trunk two days ago, but ever since I've been

Re: Configuring multiple nodes

2009-09-19 Thread Chris Were
Assuming you can ping, do you see anything different with iptables turned off? *sigh* I should have tried turning iptables off -- I can now see both nodes. Thanks :) That being said, I'm no expert in iptables rules. This is what I added for cassandra, what rules do others use? -A