With Nagios, the leading open source infrastructure monitoring application, you can monitor your whole enterprise by using a distributed monitoring scheme in which local slave instances of Nagios perform monitoring tasks and report the results back to a single master. You manage all configuration, notification, and reporting from the master, while the slaves do all the work.
I have replication setup as follows
Master A ----> Slave B ------> Slave C
\-------> Slave D
\------> Slave E - H
I use this setup because I need a local copy at the office server (that is slave C). I don't want to put extra strain on Master A because it's already receiving all of the inserts and extra load from the slaves connections.
What would be good software for monitoring multiple small and disparate networks?
My company sells a product that requires deployment of a number of Linux servers on a customer's network (typically three servers but may be more). We currently have such deployments in 25+ networks and this number is growing.
If you need to monitor very large networks, you need powerful software. OpenNMS offers serious monitoring capabilities in a truly open source package.
I am searching a tool for monitoring my web apps, which are deployed accross several machines in the same VPN. However, besides the monitoring service, I would like to control my services (start|stop|restart) from a central place, preferentially web ui. I found Monit , and its great. But, the distributed version (M/Monit) is not free. there is some open source tool with these capabilities?
I'm new to this area when it comes to monitoring services and hardware devices. Is there anything specific I need to know?
1) Are some hardware devices more compatible then others?
I was setting the MySQL Replication for master -> slave/master -> slave
and Replication for master -> slave its works fine but when
i have enable this option in my.cnf
log-slave-updates=1
for updating the master bin log my replications is starting be slower and the time
Seconds_Behind_Master
is growing.
Monitoring Drupal With Opsview
In this howto post we'll show you how to use the nagios monitoring plugin to monitor your Drupal CMS installation using Opsview's application monitoring software. With this module you'll be able use Opsview tell you if your Drupal website is running as expected.
I am trying to setup a Pseudo Distributed Hadoop Cluster on my machine.
Env Details :
Host OS: Windows
Guest OS: Ubuntu
Vm's Created one master and one slave.