Re: New feature / educational project

2011-02-08 Thread m...@monit.dk
I noticed :) But the question was if such a feature could make it to the trunk - and as far as I see, there is enough interest around this. - Reply message - From: "Tristan Tarrant" Date: Wed, Feb 9, 2011 05:56 Subject: New feature / educational project To: With Java 6 there is no nee

Re: New feature / educational project

2011-02-08 Thread Tristan Tarrant
With Java 6 there is no need to add rhino as there already is the javax.script package Tristan On Feb 8, 2011 9:56 PM, "Morten Wegelbye Nissen" wrote: > Hello mighty developers of Cassandra, > > I have been thinking of creating a feature like stored procedures for > Cassandra. > Concept is actuall

Gossip messages at DEBUG

2011-02-08 Thread Aaron Morton
I've just put the latest 0.7 build on a node and it's logging gossip messages at DEBUG and making the logs really hard to use. Anyone object to moving these to TRACE level ? e.g.here's 6 in a second for a machine doing nothing. DEBUG [GossipStage:1] 2011-02-09 15:56:04,259 MessagingService.java (li

Re: New feature / educational project

2011-02-08 Thread B. Todd Burruss
i am interested in plugins/triggers. it seems like a good way to solve the problem of streaming data out of cassandra into, say a hadoop cluster or some other BI backend On 02/08/2011 02:25 PM, Jeremy Hanna wrote: I think the plugins/triggers/coprocessors is a great discussion to get going a

Re: New feature / educational project

2011-02-08 Thread Jeremy Hanna
I think the plugins/triggers/coprocessors is a great discussion to get going again if there is interest. It's been on the to-do list for a long time and just from what I've heard anecdotally, there is a lot of interest. On Feb 8, 2011, at 3:57 PM, David G. Boney wrote: > Hi All, > > I am als

Re: New feature / educational project

2011-02-08 Thread David G. Boney
Hi All, I am also interested a stored procedure feature. I spoke with Matthew Dennis at DataStax about a month ago about some of the issues involved with implementing a stored procedure feature. If anyone is in the Austin area and wants to get together for a cup of coffee to discuss this featur

Re: New feature / educational project

2011-02-08 Thread Miguel Verde
See whatever preceded https://issues.apache.org/jira/browse/CASSANDRA-380 and the current https://issues.apache.org/jira/browse/CASSANDRA-1016 for potentially similar ideas, as well as https://issues.apache.org/jira/browse/CASSANDRA-1215 and https://issues.apache.org/jira/browse/CASSANDRA-1311 for

New feature / educational project

2011-02-08 Thread Morten Wegelbye Nissen
Hello mighty developers of Cassandra, I have been thinking of creating a feature like stored procedures for Cassandra. Concept is actually pretty simple add one of the javascript compilers. ( Mozilla Rhino or one alike ). Save js source in a CF in the system keyspace. Add feature to thrift to

Re: Monitoring Cluster with JMX

2011-02-08 Thread Aaron Morton
Can't you get the length of the list on the monitoring side of things ?aaronOn 08 Feb, 2011,at 10:25 PM, Roland Gude wrote:Hello, we are trying to monitor our cassandra cluster with Nagios JMX checks. While there are JMX attributes which expose the list of reachable/unreachable hosts, it would be

Re: How do secondary indices work

2011-02-08 Thread Aaron Morton
Moving to the user group.On 08 Feb, 2011,at 11:39 PM, alta...@ceid.upatras.gr wrote:Hello, I'd like some information about how secondary indices work under the hood. 1) Is data stored in some external data structure, or is it stored in an actual Cassandra table, as columns within column families?

How do secondary indices work

2011-02-08 Thread altanis
Hello, I'd like some information about how secondary indices work under the hood. 1) Is data stored in some external data structure, or is it stored in an actual Cassandra table, as columns within column families? 2) Is data stored sorted or not? How is it partitioned? 3) How can I access index d

Monitoring Cluster with JMX

2011-02-08 Thread Roland Gude
Hello, we are trying to monitor our cassandra cluster with Nagios JMX checks. While there are JMX attributes which expose the list of reachable/unreachable hosts, it would be very helpful to have additional numeric attributes exposing the size of these lists. This could be used to set threshold