On Wed, 31 Oct 2018, Anthony D'Atri wrote: > > Generally speaking, I'm not too concerned about the monitor's memory > > consumption under normal operation - we do bound the number of maps we > > keep, although sizes can be a problem. What you suggest would certainly > > help with this, and make it so that we get a ballpark value depending on > > cluster size. > > FWIW, we’re running 12.2.2 and have seen the lead mon’s memory usage > balloon (eg. to 80+GB) when another mon reboots or restarts. Whether > memory consumption is the cause or a symptom I’m not sure, but often > when this happens the affected mon becomes sluggish for a short time and > slow requests pile up. When the heap is examined, it’s all in the > freelist. What distro+version, and what version of tcmalloc? Thanks! sage
