[Ganglia-general] GMond Server + EC2 using UDP Buffer Overflow

Hi Ganglia Experts, I need help with GMond server specifically. I'm into this issue where my GMond Server is loosing UDP packets, which all of my GMond clients and custom apps are sending. My Infra: Infra : AWS EC2 Machine Type: M1x.large No. Of Machines in the cluster: 500 # of Custom metrics

Re: [Ganglia-general] GMond Server + EC2 using UDP Buffer Overflow

What version of gmond are you running? 3.5.0+ have the ability to set higher UDP Buffer sizes. On 27. travnja 2014. 14:27:21 EDT, Manish Malhotra manish.hadoop.w...@gmail.com wrote: Hi Ganglia Experts, I need help with GMond server specifically. I'm into this issue where my GMond Server is

Re: [Ganglia-general] GMond Server + EC2 using UDP Buffer Overflow

Thanks Vladimir for the quick reply !! Its 3.4.x , but I'm wondering this problem is more the system / machine level instead of GMond server level. As I see the Recieved Buffer Errors at the system level, so even before reaching the GMond server process OS is having issue in reading those UDP

Re: [Ganglia-general] GMond Server + EC2 using UDP Buffer Overflow

IIRC by default gmond will set buffer size to 128kB which is insufficient if you are collecting lots of metrics. These two commits change the behavior so that you can set UDP receive buffer to higher as long as eg. net.core.rmem_max is set