Re: [Ganglia-general] Probleme scaling up Ganglia past 55 nodes

2014-03-18 Thread Filipe Bonjour
Dear Vladimir, We're not using rrdcached. I'll look into this tomorrow (we have a maintenance today). After 24 hours, rrdcached seems to have solved it. Thanks for you advice, and also to Mozammil for his. Filipe -- Filipe Bonjour In theory there is no difference between theory

[Ganglia-general] Probleme scaling up Ganglia past 55 nodes

2014-03-16 Thread Filipe Bonjour
Hello, I am fairly new to Ganglia, and have a problem with Ganglia 3.6.0 / Ganglia Web 3.5.10: In one of my clusters, after I add approximately 55 hosts, the graphs go blank. I think it's very similar to http://www.mail-archive.com/ganglia-general%40lists.sourceforge.net/msg07852.html, but that

Re: [Ganglia-general] Probleme scaling up Ganglia past 55 nodes

2014-03-16 Thread Vladimir Vuksan
What kind of storage are you using ? Are you using rrdcached? Vladimir On 03/16/2014 11:17 AM, Filipe Bonjour wrote: Hello, I am fairly new to Ganglia, and have a problem with Ganglia 3.6.0 /

Re: [Ganglia-general] Probleme scaling up Ganglia past 55 nodes

2014-03-16 Thread Filipe Bonjour
Dear Vladimir, What kind of storage are you using ? Are you using rrdcached? Vladimir We're using a parallel filesystem (GPFS). I agree that it's not very fast, and I was tempted to move the RRDs to faster disk or tmpfs. But if the problem was slow storage or network, wouldn't the other

Re: [Ganglia-general] Probleme scaling up Ganglia past 55 nodes

2014-03-16 Thread Mohd Mozammil khan
I had past experience with Ganglia setup having more than 100 nodes. Since the setup was in Amazon AWS, I was bond to use unicast mode to communicate between gmond and gmetad and I personally like unicast which somewhere or the other saves network bandwidth.  The way I had organized the setup,