0
votes
1answer
58 views

Monitoring network output bandwidth of server for each IP address

I've got a network of static file serving servers. I use nginx to serve the files, and munin to monitor the network traffic. I want to know the output bandwidth of the server that goes to each IP ...
0
votes
1answer
124 views

How to access min/max/avg value in munin plugins?

I'm writing a munin plugin and display a GAUGE which displays a value which constantly increases. What I want to add to that plugin is a day/week/etc. average. I simply have to substract the day's ...
1
vote
1answer
134 views

Munin UNKNOWN spamming

By adding unknown_limit 50 to munin.conf I've been able to drastically decrease the number of emails I receive from hosts that generate an otherwise acceptable level of UNKNOWN values. The problem is ...
0
votes
1answer
63 views

Munin Limits on COUNTER and DERIVE Data

For Munin plugins of COUNTER and DERIVE type, what values should I use for ${name}.warning and ${name}.critical values?
0
votes
2answers
116 views

Munin's load plugin does not appear

I just did a fresh install of Munin 2.0.6-4 on a Debian 7.1 server from the debian repositories. The "load" plugin appears as loaded: # munin-node-configure | grep load load | ...
0
votes
1answer
471 views

I have setup munin how do I set up alerts for specific parameters

I have setup alerts in munin.conf contacts user1 user2 user3 user4 contact.user1.command mail -s "Munin notification" mailid1@mydomain.in contact.user2.command mail -s "Munin notification" ...
0
votes
1answer
92 views

munin aggregate graph problems

Munin is driving me crazy. I'm trying to get an aggregate graph working. Here is my conf file: [Mydomain;machine-1] address xxx.xxx.xxx.xxx use_node_name yes [Mydomain;machine-2] address ...
1
vote
1answer
377 views

Munin : aggregate network traffic

I have a default configuration of munin-node on 3 of my servers, and I would like to create a summary chart that displays total output bandwidth. Here is what I have done minin.conf : ...
9
votes
1answer
224 views

How to mark every deploy in munin?

Anyone knows if it's possible to mark every deploy with a red vertical line in munin graphs? It will be great to debug possible performance holes in the code. Thanks in advance!
0
votes
3answers
256 views

Passively monitor IO wait spike on process level

We use munin and monit to keep track of general stats about our vps, in last a couple of weeks, we have been running into issues where random IO wait spike is killing our server performance. Since ...
1
vote
1answer
207 views

Munin 2.0 vs 1.4

Munin came out with a new major release (2.0). It is, however, not easy to see what has changed. I've checked the main site, the FAQ and the Documentation, but nothing found. There's the Changelog, ...
1
vote
1answer
186 views

Should Munin sit in /var/www/munin or /var/cache/munin/www?

I've just installed Munin for the first time in around twelve months, and I've hit a familiar error. I remember from last year that there is an oddity where Munin wants to keep its html files in ...
1
vote
0answers
66 views

Cross-referencing charts (e.g. munin) with log files

Is there a charting package like Munin (or an addon for it) that will let me click on a graph period and then see all the logs on that box for that period? e.g. if I see a huge spike in disk I/O 12 ...
1
vote
1answer
122 views

Alerting system for Munin

I am very satisfied with munin as a monitoring tool (as I only have a simple 2-server setup) but its alerting system is very annoying as you can only configure it to send an e-mail upon every check ...
3
votes
1answer
345 views

Reduce munin logging level

Munin is quite verbose, and logs a bunch of things into munin-graph.log, munin-html.log, munin-limits.log and munin-update.log at each run of munin-cron. I already reduced munin-node logging level by ...
0
votes
2answers
487 views

configuring munin-node for nginx

I am deploying munin to monitor my production ubuntu aws ec2 instances which is running on nginx. Now I wanna deploy munin-node in the production system and deploy munin-master in the another aws ec2 ...
4
votes
1answer
467 views

Munin aggregate graphs are not working

I know this has been asked in several times on many forums before, but still I am struck with similar problem. Individual graphs are working fine however, aggregate graphs are not. I don't even get ...
2
votes
2answers
1k views

How can I configure Munin to give me a “total” view of all my cloud servers?

I have a dozen load balanced cloud servers all monitored by Munin. I can track each one individually just fine. But I'm wondering if I can somehow bundle them up to see just how much collective CPU ...
2
votes
3answers
10k views

How should I monitor memory usage/performance in SunOS/Solaris?

Last week we decided to add some SunOS (uname -a = SunOS bbs-sam-belair 5.10 Generic_127128-11 i86pc i386 i86pc) machines into our running munin instance. First off, the machines are pre-configured ...
1
vote
1answer
314 views

Monitor Nginx response time with munin

Well, nginx is configured to put $request_time in it's access logs. Now I need to monitor this parameter with munin. Is there any existing plugin to do this?
2
votes
1answer
106 views

Alert if munin-master contact node

I have installed munin on one of my servers, and munin-node on another server I wish to monitor. I would like an alert if for any reason the node can't be contacted by the master. Is it possible to ...
0
votes
2answers
311 views

Nagios (or a similar tool) with more variety in alert levels?

I'm looking at monitoring and alerting for some of our business metrics in a web app (pageviews, signups, etc). We already use Nagios and Munin for a wide variety of server monitoring and alerting ...
4
votes
0answers
272 views

Intermittent munin-cron error “There is nothing to do here, since there are no nodes with any plugins”

We've installed munin monitoring on one of our servers. Generally it seems to be working well but occasionally, 4 times in 2 months to be exact, munin-cron has generated the following error: ...
5
votes
1answer
2k views

Can someone explain the “use-cases” for the default munin graphs?

When installing munin, it activates a default set of plugins (at least on ubuntu). Alternatively, you can simply run munin-node-configure to figure out which plugins are supported on your system. Most ...
1
vote
2answers
586 views

How to monitor servers in different network using munin?

I would like to monitor some servers using munin, that are in a different network and are not reachable directly by telnet. I wonder what are the possibilities: Can I install a central node in the ...
4
votes
4answers
552 views

What metrics should I monitor on my Linux-server?

I've been tasked with setting up monitoring of 300 servers, doing different things. I've been looking at various tools, such as Nagios, Munin, and others - so I got a pretty good idea on how I can ...
2
votes
3answers
228 views

Pulling Server Stats for Remote Monitoring

I'd like to write my own server monitoring app. Ideally it could show stats like load, uptime, cpu activity, most active processes, memory usage by process, etc. What's the best way to grab that ...
0
votes
1answer
141 views

If a Munin plugin fails, nobody gets notified. Why is this so?

I've built a bunch of munin plugins that monitor various back-end services. If the metrics dip below thresholds set in munin.conf, we're notified by email. However, if one of these services goes down ...
1
vote
1answer
159 views

Why is my munin plugin being double executed (concurrently)?

I have a custom made munin plugin that currently is being executed twice every time $ ps fax 16844 ? Ss 0:00 /usr/sbin/munin-node 18206 ? S 0:00 \_ /usr/sbin/munin-node 18863 ...
1
vote
3answers
2k views

How to monitor HTTP response error codes from nginx using munin?

I'm beginning to use Munin to monitor an in-production Nginx server. One thing I'm particularly interested in graphing is the rate of errors--HTTP responses with codes in the 50x range. I'm wondering ...
0
votes
1answer
138 views

Add marks at specified times on a Munin graph

I want to mark some events on my Munin graphs to see how the graphs change at these points. It seems that in RRD terms they can be created by VRULE command, but I can't find a way to use it with ...
4
votes
1answer
253 views

Does jmxremote affect tomcat performance?

I'd like to enable jmxremote to monitor Apache Tomcat resources utilization with Munin, but I want to know if this will affect the servers performance, is so, how much will it be impacted.
6
votes
5answers
6k views

I need to replace munin with something more scalable

I have used munin on multiple servers for many years with great success, however with more than 100 munin-nodes and when there is load on the clients, the processing is timing out. I have made some ...
3
votes
2answers
2k views

Monitoring Nginx vhosts with Munin

I've set up Munin and so far, loving it. I got some basic Nginx monitoring set up and am able to monitor Nginx's status and RAM usage (with stub_status compiled into Nginx and activated in the ...
0
votes
1answer
144 views

Possible causes for large drop in measured firewall throughput

We run our application on ec2 and use Munin to monitor various metrics. We do a bi-weekly fresh deploy on new ec2 + rds instances. After our most recent fresh deploy, we noticed a 4x reduction in the ...
2
votes
2answers
467 views

Monitoring System for the cloud?

I need a monitoring system, much like ganglia / nagios that is build for the cloud. I need it to support : Adding / removing nodes dynamically. (Node shuts down, dose not imply node failure...) ...
2
votes
2answers
1k views

Munin - Load old/historic data from a database to prepopulate the graphs?

I have a Munin setup that monitors some data from our database about the number of sales. My munin plugin extracts this data from the database with a query. I could run this query for any time in the ...
0
votes
2answers
682 views

Munin - 'by week/month/year' to use the total, rather than the average values?

I have some custom munin graphs that measure an aspect of our sales in our webapp. So I measure "Number of sales so far today". The graph goes up and then reset to 0 at midnight. This is what I want. ...
1
vote
2answers
1k views

Munin Graphs - Have one graph/plugin only update once per hour?

I am writing a custom munin plugin/graph and it's slightly computationally expensive. It's also unlikely to change much in a few minutes. Is it possible to have this one graph/plugin only update once ...
8
votes
6answers
12k views

Nagios graphing solutions vs Munin/Cacti/Ganglia

I've got a nagios server setup for monitoring ~ 30 Windows servers. I want to add some trending charts. I've read that nagios graphing plugins are simple and many people use seperate, standalone ...
0
votes
1answer
583 views

MySQL per user monitoring

Is there a tool for monitoring per user MySQL usage? Like number of queries for example. I have been looking on Munin which I currently use, but did not find anything. A similar tool is the per user ...
2
votes
1answer
995 views

Munin's fw_conntrack reports strange number of sockets in TIME_WAIT

Ubuntu Server 10.04.1 x86 Munin 1.4.4 Here is what Munin tells me about connections through firewall on my server: Here is what netstat -n has to say about this: $ netstat -an|awk '/tcp/ ...
0
votes
2answers
644 views

Munin on localhost (telnet only displays period)

I set up munin to run as root for testing, my relevant config is as so: munin.conf: [localhost] address 127.0.0.1 use_node_name yes I tried fqnd.mysite.com (but it couldn't connect), ...
0
votes
2answers
809 views

Munin, monitoring & emailed alerts

I've got several servers serving some websites. I've got Munin set up so I can track things like memory consumption, disk usage, etc. What I'd like to have now would be a way to get emails if ...
1
vote
1answer
1k views

Munin - apache_watch_ plugin, does not show any data in the graphs that shows activity for per vhosts

I am using Munin for monitoring my server. I installed the apache_watch_ plugin so that i could see apache related activity. The graphs for apache_accesses, apache_processes and apache_volume work ...
0
votes
2answers
741 views

Stripping a spike from rrdtool when removespike.pl doesn't find any

I know when rrdtool graphs (using rrdtool 1.4) network traffic and the host is restarted a spike is a pretty normal thing to see. In the past I've just run that removespike.pl script that is hosted ...
3
votes
3answers
1k views

Puppet, Nagios, Munin on cPanel based hosts

I've been managing 20-30~ cPanel based hosts over the past year with Puppet, Nagios and Munin for general monitoring / trending however a lot of the methods I've had to use to deploy / manage things ...
3
votes
6answers
2k views

Are there any tools for monitoring individual Apache virtual hosts in real-time?

I'm looking for a way to monitor and record Apache traffic, separated by virtual host. I am currently using Munin to capture this and other data for the entire server however I can't seem to find a ...
0
votes
1answer
2k views

Having munin server monitoring problem: Graphs not being generated

When I run munin-cron (munin-cron --debug), I get the following error: 2010/05/10 13:39:01 [WARNING] Call to accept timed out. Remaining workers: archstl.org;archstl.archstl.org 2010/05/10 13:39:01 ...
3
votes
1answer
3k views

How to change Munin's graph colors?

I started to use Munin for monitoring, but I want to change colors of the graph, which are drawn by it's 'loggrep' plugin. Is there any way to specify colors in the config file?