[Ganglia-general] per-metric RRA configuration

Currently, gmetad.conf allows you to set the RRA configuration for new RRD files it creates. You define a bunch of RRAs for the time ranges and resolutions you want, and every new metric created will have those RRAs. You can define high resolution RRAs that last a long time, if you want to be abl

[Ganglia-general] gmetric fails when disk is unwriteable?

One of our servers encountered an I/O error that put its root filesystem into read only mode. Both /var and /tmp are on that filesystem, so all logging stopped and most everything stopped. However, gmond kept on running, and reporting metrics. Great! This is yet another way in which Ganglia wins