Re: Cassandra gotchas ...

> I know that Cassandra is a work in progress and there are many > limitations I can live with, but it would be nice to know what the > roadmap is for the next 12-24 months so we can get an idea of what major > directions Cassandra is going in so we can plan accordingly. Take a look at Jira - htt

Re: Cassandra gotchas ...

Hi all, After using Cassandra some time, I had some comments on Cassandra and hope they spark productive conversation on the list. They are meant only as constructive feedback as a user of Cassandra. While there are many things great about Cassandra, I still feel that the current implementation

Re: monitoring with Zabbix

Zapcat is a simple bridge between JMX and zabbix protocol, and it imho doesn't allow collect info from other system metrics (like ops, bps, cpu usage, and so on), only jmx, for this purposes we must start second zabbixagent, also i cant understand how integrate zapcat with cassandra 2011/1/9 Istvá

Re: monitoring with Zabbix

Hello Ruslan, I would encourage you to try Evident Clearstone ( http://www.evidentsoftware.com/download). It monitors Cassandra clusters out of the box. In addition, support for custom JMX mbeans and alerting are included. Ivan On Jan 8, 2011 4:22 PM, "ruslan usifov" wrote: Hello Does any bod

Re: monitoring with Zabbix

What about JMX? http://www.kjkoster.org/zapcat/Zapcat_JMX_Zabbix_Bridge.html Regards, Istvan On Sat, Jan 8, 2011 at 9:22 PM, ruslan usifov wrote: > Hello > > Does any bode monitor cassandra with zabbix(http://www.zabbix.com/), > plea

monitoring with Zabbix

Hello Does any bode monitor cassandra with zabbix(http://www.zabbix.com/), please if it possible share you solutions(monitored parameters(xml) and monitor scripts) Thanks

Re: Is this a good schema design to implement a social application..

On Fri, Jan 7, 2011 at 11:38 PM, Rajkumar Gupta wrote: > In the twissandra example, > http://www.riptano.com/docs/0.6/data_model/twissandra#adding-friends , > I find that they have split the materialized view of a user's homepage > (like his followers list, tweets from friends) into several > colu

Re: Question re: the use of multiple ColumnFamilies

Filed: https://issues.apache.org/jira/browse/CASSANDRA-1955 -- / Peter Schuller

Re: Question re: the use of multiple ColumnFamilies

[multiple active cf;s, often triggering flush at the same time] > Can anyone confirm whether or not this behaviour is expected, and > suggest anything that I could do about it? This is on 0.6.6, by the way. > Patched with time-to-live code, if that makes a difference. I looked at the code (trunk

Re: quick question about super columns

Thanks. got it! On Sat, Jan 8, 2011 at 9:44 PM, Tyler Hobbs wrote: > A couple of alternatives off the top of my head: > > 1) A row of supercolumns becomes a row of standard columns with compound > column names. > > 2) A row of N supercolumns becomes N rows of standard columns (with compound > key

Re: quick question about super columns

A couple of alternatives off the top of my head: 1) A row of supercolumns becomes a row of standard columns with compound column names. 2) A row of N supercolumns becomes N rows of standard columns (with compound keys if needed); a separate timeline or index replaces the super column names. Ther

Re: quick question about super columns

Thanks Tyler & Stu, Tyler, as the alternatives for large no of subcolumns in a supercolumn, what do you suggest ? Like splitting up a 'supercolumnFamily' into several 'columnfamilies' ?? What else ? On Sat, Jan 8, 2011 at 2:33 PM, Stu Hood wrote: > Raj: the super column indexing is a longstandi

Re: quick question about super columns

Raj: the super column indexing is a longstanding issue that we've been considering recently, and would like to fix. See https://issues.apache.org/jira/browse/CASSANDRA-674 On Fri, Jan 7, 2011 at 10:53 PM, Tyler Hobbs wrote: > Not that I'm aware of. There are several other decent alternatives to