On Thu, Feb 23, 2012 at 11:06 AM, Matt Massie <m...@massie.us> wrote: > Each unique metric (keyed on metric name) requires memory space in gmond. > > A good test is to peek at the number of metrics in gmond over time, e.g. > > $ telnet localhost 8649 | grep METRIC | wc -l > > If the number of metrics over time increases, so will the memory use. > > Ganglia will release the metric and memory when the age of the metric is > greater than DMAX. A DMAX value of zero will cause ganglia to hold the > metric indefinitely. In order to make sure that ganglia is releasing old > metrics, set the DMAX value to something like 5 minutes (300 secs). >
aside from metrics originating from gmetric, where does one set dmax? i can't find any reference on how to set it and my understanding of gmond.conf is that host_dmax != dmax. > For example, lets assume you are doing per process monitoring and the metric > name looks like > > "cpu_user.%d" % (pid,) > > Over time, you'll have lots of metrics (cpu_user.343493, cpu_user.343022, > cpu_user.232323) that start accumulating and taking up memory space. > > -Matt > > > > On Thu, Feb 23, 2012 at 10:01 AM, <svd.gang...@mylife.com> wrote: >> >> i observed this in the past as well. running valgrind for days did not >> yeild any clue. i had a hunch that remote spoofed metrics were involved, >> as the leak seemed to get better when i had coincidentally disabled the >> sending of some of those spoof metrics. but, we never found anything >> conclusive. there was also some odd race such that sometimes after >> restart the leak was much faster, but after restarting a few times the >> leak slowed (but was always still fast enough to be a burden). >> >> -scott >> >> >> From: Aidan Wong <aidanw...@attinteractive.com> >> >> To: "Ave-Lallemant, Nathan P" <nathan.p.ave-lallem...@efleets.com>; >> >> ganglia-general <ganglia-general@lists.sourceforge.net> >> >> Sent: Thursday, February 23, 2012 8:34 AM >> >> Subject: Re: [Ganglia-general] Ganglia gmond memory leak? >> >> >> >> >> >> I've restarted the gmond process and memory usage drops until gmond >> >> hogs memory over time. ?Any Ganglia contributors who may want to chime in >> >> on >> >> this memory leak issue? ?I'm on Ganglia 3.2.0. ?Are there any improvements >> >> on version 3.3.1 addressing this issue? >> >> >> >> >> >> Thanks >> >> >> ------------------------------------------------------------------------------ >> Virtualization & Cloud Management Using Capacity Planning >> Cloud computing makes use of virtualization - but cloud computing >> also focuses on allowing computing to be delivered as a service. >> http://www.accelacomm.com/jaw/sfnl/114/51521223/ >> _______________________________________________ >> Ganglia-general mailing list >> Ganglia-general@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Ganglia-general mailing list > Ganglia-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ganglia-general > ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
