Re: Monitoring with Cacti

2010-09-12 Thread Ranjib Dey
I use nagios + nrpe + some custom scripts to monitor our cassandra/hadoop nodes. Given our long time comfortability with nagios, i didn't find any major gotchas .. regards ranjib On Mon, Sep 13, 2010 at 2:10 AM, Aaron Morton wrote: > This is my first encounter with cacti, and it's feels a lot lik

Automatic Indexing on Composite Keys & Unions

2010-09-12 Thread Peter Harrison
I'm looking at how to achieve a search on several separate fields. Before 0.7.0 this would mean separate indexes maintained by explicit mutations by the client. Recently automatic secondary indexes were added to 0.7.0. I have several indexes. My index row keys are composite keys. All the indexes ar

Re: Couple of cache related questions

2010-09-12 Thread kannan chandrasekaran
Thanks for the replies Jonathan...Couple more clarifications(in bold) From: Jonathan Ellis To: user@cassandra.apache.org Sent: Sun, September 12, 2010 1:47:09 PM Subject: Re: Couple of cache related questions On Sun, Sep 12, 2010 at 2:56 PM, kannan chandraseka

Re: Couple of cache related questions

2010-09-12 Thread Jonathan Ellis
On Sun, Sep 12, 2010 at 2:56 PM, kannan chandrasekaran wrote: > 1) What determines the amount of memory used per schema ignoring the general > overhead to get cassandra up and running?  Is it just the size of the caches > for the column Family + the memtable size ? and the bloom filter and index

Re: Monitoring with Cacti

2010-09-12 Thread Aaron Morton
This is my first encounter with cacti, and it's feels a lot like having a cactus violently inserted in me :) Hopefully this week I can get back to it with a clearer head, part of my annoyance was probably trying to rush it through on a Friday and it's somewhat taxing configuration. Over the weekend

Re: Monitoring with Cacti

2010-09-12 Thread Aaron Morton
Thanks but this is an internal only application. CheersAaronOn 13 Sep, 2010,at 04:39 AM, Dave Viner wrote:I haven't tried cacti, but I'm using CloudKick as an external service for monitoring Cassandra.  It's super easy to get setup.  Happy to share my setup if that'd help.It doesn't currently moni

Couple of cache related questions

2010-09-12 Thread kannan chandrasekaran
1) What determines the amount of memory used per schema ignoring the general overhead to get cassandra up and running? Is it just the size of the caches for the column Family + the memtable size ? 2) Is the size of the cache configured ( in terms of absolute numbers or percentages), an upper

Re: How to drop a keyspace in 0.6.5?

2010-09-12 Thread kannan chandrasekaran
Thank you for the clarification...very helpful Kannan From: Rob Coli To: user@cassandra.apache.org Sent: Fri, September 10, 2010 12:55:14 PM Subject: Re: How to drop a keyspace in 0.6.5? On 9/10/10 10:10 AM, kannan chandrasekaran wrote: > Thank you for the re

Re: Monitoring with Cacti

2010-09-12 Thread Dave Viner
I haven't tried cacti, but I'm using CloudKick as an external service for monitoring Cassandra. It's super easy to get setup. Happy to share my setup if that'd help. It doesn't currently monitor JMX information, but it does offer some basic checks like thread pool and column family stats - https