I've seen vdsmd leak memory (RSS increasing) for a while, and never
gotten anywhere with diagnosing it.  I upgraded a small setup (2 hosts
with hosted engine and iSCSI SAN) last week to 4.3.7 plus latest CentOS
7.7 updates, and I am still seeing this.

Currently, there are only 3 active VMs, plus the engine, all running on
one of the two node (which is also the SPM), and vdsmd on that node is
up to 450M RSS (6 days after upgrading), which is up almost 100M in the
last 24 hours.  On the other node, vdsmd RSS has not changed in the last
24 hours (83M).  I have a script watching the RSS on the growing node,
and it's a pretty steady increase:

   07:59:59.735  452080  +28
   08:00:03.361  452104  +24
   08:00:04.852  452112  +8
   08:00:21.088  452116  +4
   08:00:25.456  452120  +4
   08:00:25.753  452124  +4
   08:00:34.219  452132  +8
   08:00:35.866  452136  +4
   08:00:44.360  452140  +4
   08:00:51.213  452144  +4
   08:00:57.046  452152  +8
   08:00:59.855  452160  +8
   08:01:01.461  452164  +4
   08:01:04.615  452168  +4
   08:01:10.544  452172  +4
   08:01:11.003  452180  +8
   08:01:13.826  452184  +4
   08:01:14.737  452188  +4
   08:01:15.002  452192  +4
   08:01:21.350  452196  +4
   08:01:29.870  452200  +4
   08:01:34.995  452208  +8

This is a problem I have in multiple oVirt setups - don't know if it is
just something about how I installed or what, but I'd really like to
work on getting this figured out and fixed.

-- 
Chris Adams <c...@cmadams.net>
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