Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and grids.

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how to remove “&hide-hf=false” query string in ganglia

for some reason my ganglia instance adds "&hide-hf=false" into the url query string when I drill down into any cluster or host, and the page loads blank. removing it allows the page to load ...
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12 views

Ganglia and how it communicates

I'm a little confused about how Ganglia sends information around and have found conflicting information on the web. I would have thought that the gmond process would either send info to gmetad at a ...
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28 views

Ganglia - gmond + gmetad work, gweb does not

I have created an installation of Ganglia on a RHEL 6.5 EC2 instance. I have gmond, gmetad, and gweb all installed and configured on this host. I am only trying to monitor the localhost for now. I ...
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1answer
44 views

Setting up multiple grids in Ganglia

Has anyone set up multiple grids to show on a single UI with Ganglia? I know how to set up multiple clusters but would love to show Grids on one interface. Here's an example. ...
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1answer
14 views

Ganglia multicast with clustering

Let's say I have two hosts. One acts as the server where gmetad and a local gmond resides. It also has the web interface. I then have a client that only has gmond configure as follows. Anyways, ...
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123 views

How to install ganglia on vmware esxi 5.5 host? [closed]

I want to install ganglia monitoring tool on esxi host so that i can monitor vm's usage. Can anyone give me a installation guide/link which i can refer/follow to install it? PS: I am total newbie to ...
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1answer
69 views

Access Internal Website from Public Internet

I have the current setup: laptop -> gatekeeper -> master_server -> my_machine There are 3 SSH's that I need to do to get to my_machine and I found a solution to do it in one step by editing SSH's ...
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69 views

install ganglia from sources: a) error /etc/ini.d/functions does not exist ; b) use Nginx instead of apache as web server for it

I'm trying to install ganglia (v.3.6.0) from sources on an Ubuntu 12.04 LTS server and I have 2 questions: A) The configure/make/make-install phase works. But when trying to launch gmond or gmetad ...
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84 views

What is the use of gmond collection group in unicast Ganglia setup?

There is a Ganglia aggregator running: gmond gmetad And three Ganglia agents working in unicast mode, to publish data to the aggregator. From one of the Ganglia agents, I manually push new ...
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53 views

How to choose which graphs to show in the Main view of ganglia?

I am running Ganglia web frontend 3.5.12. The "Main" view looks like: unspecified Grid (4 sources) - Load last hour - Memory last hour - CPU last hour - Network last hour Cluster1 - Cluster1 load ...
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50 views

Ganglia: aggregate metrics from one host

copy of: http://stackoverflow.com/questions/20802925/ganglia-aggregate-metrics-from-one-host For example, 2 instances of 1 process produce some metric using gmetric. They launched on one host: ...
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193 views

How to make Statsd talk to Ganglia on EC2 (localhost)

As per topic, Im just trying to make this simple setup work. The services are running fine, but as far as I can tell statsd doesn't send anything over to ganglia. Ganglia is working fine I guess since ...
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23 views

regex in rrdtool_graph series

I have two values currently being reported to rrds in ganglia, and one for each user metadata volume in our system (800+ volumes, one value is called numObjsToDelete, another is called ...
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92 views

Ganglia - Default graphs not showing up

I am using Ganglia UI to monitor a bunch of distributed clusters. All the graphs are working except the default graphs (load, memory, cpu and network). Ganglia gmond is not storing those information ...
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1answer
25 views

What tool to retain and compare detailed previous ganglia data?

The loss of resolution in Ganglia makes it difficult for my product team to compare periods of load and test performance changes. We have bursty periods, separated by days or weeks. What tools are ...
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1answer
62 views

Ganglia Oracle plugin?

Can't seem to find a good Oracle plugin for Ganglia. I was hoping someone could point me in the right direction? I'm not hugely familiar with Oracle so I'm assuming it exposes the various metrics via ...
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57 views

Can I to stack up groups of metrics in one graph a'la Munin in Ganglia?

I'd like to stack up metrics in a single graph, i.e., to expose cpu usage (user,system,etc.) or memory usage (used,free,cache,etc.) in a composite graph per host. The graph should be generated ...
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1answer
63 views

gmetric data submitted doesn't follow dmax value

I have a custom script that is querying a metric port for an application that I'm running and submitting parsed values to ganglia via gmetric. The script runs every minute, so I submit the data to ...
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70 views

Graph data in ganglia that is only received periodically without zeroing out

I'm wondering how to fix graphing gaps in a custom metric for my companies application that we retreive every five minutes via cronjob. The cronjob collects the data and puts it into rrds and sends to ...
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1answer
647 views

How configure Ganglia in Unicast correctly?

I'm working with Ganglia, great tool by the way! I'm trying to make this topology, with some nodes running centOS 6.4, centOS 5.9. So for this I'm trying this configuration for GMetad (the rest is ...
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2answers
71 views

CentOS won't present login menu after a new service was defined

Yesterday I was trying to install Ganglia in my virtual machine. After I defined Ganglia as a service I reboot the machine, but after that CentOS won't present the log in menu anymore. I think it's ...
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1answer
83 views

ganglia stops after rebooting the collector server

I have 3 machines. One of them collects ganglia data for all 3 of them. When I reboot this "collector" server, both gmetad and ganglia-monitor are started from the /etc/rc3.d, and I can see in tcpdump ...
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71 views

gmond not logging data intermittently

We have made a same setup for 10 boxes via pupet. All boxes are using centos 5.6 except one running Centos 5.8. All boxes have the same gmond.conf. A snippet of conf udp_send_channel { ...
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1answer
191 views

Network devices bandwidth monitoring and graphing with open source components?

We can use ganglia to monitor metrics on servers, but it does not seem to be an option for network gear monitoring. To monitor bandwidth of a switch, we need to either poll the port through SNMP ...
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287 views

Ganglia web generating “error collecting ganglia data (:): fsockopen error”

Now, I'm trying to install a new ganglia-web interface to replace an older one. Google searching on the error got me a lot, but none of it helps. One large distinction I note is that Google usually ...
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83 views

How to bring up an hourly graph for a specified period (rather than only “Last Hour”) in Ganglia

Sorry if this is a silly question but I can't find a way to make Ganglia display an hourly graph of a specified time. How do I do this? The version of my Ganglia Web Frontend is 3.1.7
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535 views

Is Ganglia's RRD module a bottleneck?

I want to monitor a LOT of metrics on a lot of machines, and from Graphite website, I noticed that ganglia's RRD compoent probably impose scalability issue from the following FAQ explaining why ...
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1answer
411 views

How to set up alerts on Ganglia?

How can I set up Ganglia so that I get an email if a machine in the cluster is using, for example, greater than 95% of physical RAM?
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351 views

Graphite Integration breaks ganglia/gmetad?

I'm trying to forward metrics from gmetad to graphite/carbon. After configuring carbon_server and ganglia_prefix in gmetad.conf gmetad starts losing metrics. gmetad Version is 3.3.5, ...
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124 views

Suppress user input when installing ganglia on ubuntu

I'm writing a hadoop configuration script, but I'm running into trouble installing ganglia. The script needs to run all the way through without any human intervention. Unfortunately, but when it ...
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2answers
396 views

ganglia graphs like munin for cpu, etc?

I'm coming from munin and a CPU graph contains data for system, user, nice, etc ALL on one graph. I just installed ganglia and setup the basic monitoring. It appears that each type of cpu data is a ...
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1answer
274 views

Can ZenOSS integrate Ganglia smoothly?

I like Ganglia for its Gmetric function, and I like its multi-layer capability. But Ganglia does not have healthiness check, alerting and etc. for the server monitor functionality. So it would be ...
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157 views

having trouble setting up ganglia on three machines

I am running ubuntu 11.10 I have one machine with gmetad, gmond and ganglia-webinterface. When I browse the web interface this machine picks up the local gmond output. I then added another machine, ...
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332 views

Ganglia homepage defaults to Cluster Report rather than Grid Report

As title says, the ganglia page is defaulting to cluster report, which is quite ugly as it is attempting to mesh the 2 clusters together. Both ganglia/?c=kvmsrvGrid and ganglia/?c=unspecified work ...
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337 views

Ganglia network stats incorrect

I am using ubuntu 10.04LTS. The Ganglia on all of my nodes is not reporting the network usage correctly. There is a fairly large amount of fluctuation on the actual network, but on ganglia it seems ...
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315 views

Ganglia - no summary info from gmetric metrics

I setupped ganglia and configured gmetric to collect some metrics with node spoofing. Theese virtuals metrics are collected, I able to see separate graphs of metrics for each node. I created summary ...
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1answer
196 views

Installed ruby from source on debian, apt-get no longer works due to failed dependencies, how do I fix it?

I installed ruby from source, and everything ruby related seems to work just fine. I can't install anything that depends on ruby using apt because I don't want 2 versions of ruby installed. After I ...
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1answer
988 views

Redirecting syslog output for certain processes to a particular file

I must admit to being a complete syslog newbie. I haven't touched it until now, but I use its output on a daily basis, like most of us :) I currently have a problem with the gmetad daemon spamming my ...
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1answer
676 views

Alternative Ganglia interfaces?

I'm evaluating various metric collection systems and appreciate just about everything in Ganglia, except for the less than clean interface. Does anyone know of alternative Ganglia interfaces or ...
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3answers
1k views

Ganglia doesnt update graph

I started to notice my web interface hasn't updated the graph in hours. Each time I restart the gmond process on my clients, I see that the graphs does work. I come back an hour or so later and my ...
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2answers
2k views

Setting up Ganglia for multiple clusters

Say I have a bunch of clients with ONE master host that houses the gmetad and web interface. If I define one cluster (i.e. 'Cluster'), it works, but let's say I want a second set of cluster, how does ...
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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...) ...
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1answer
1k views

What does cpu_aidle mean in Ganglia reports?

The cpu_aidle graph mysteriously flat at roughly 12 percent on all machines reporting on a friend's cluster. Given how everything else CPU related is spiky, this seems unusual. Can anyone shed light ...
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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 ...
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1answer
700 views

How to install Ganglia on CentOS 5.4 64 bit?

In my case it's running on EC2 Compute Cluster HVM instance, so it should use TCP instead of UDP.
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3answers
2k views

Collectl Disk IO and Ganglia

I'm trying to push disk io statistics from collectl V3.3.5-4 (with the multicast and socket Perl modules installed) through to a Ganglia version 3.0.7 instance. Configured and followed the ...
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3answers
2k views

Using Ganglia on EC2

In Amazon EC2 I have a setup of proxies and 1 monitor (MON). I've installed gmond in the proxies and gmetad in MON. My data source for gmetad.conf in MON look like this: data_source "proxies" ...
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4answers
5k views

Ganglia without multicast

I'm running Ganglia 3.1.2 on a network where there is no multicast (nor can I turn it on). Does anyone have an elegant solution for getting ganglia to work correctly? I found this: ...