Univention Bugzilla – Bug 49574
[4.4] Live Migration Causes Memory Thrashing on Target Host
Last modified: 2019-05-29 16:47:54 CEST
+++ This bug was initially created as a clone of Bug #49548 +++ CU migrated a running VM with a huge amount of RAM (100G) to a target host with apparently enough free physical RAM available. But the target host system went unusable due to memory thrashing and all VMs there suddenly used a lot of swap memory. All VMs where very slow as their memory had been moved to swapfile. A "top" command still showed a good amount of free memory available on the target host, but still all VMs where running at least partially from swap.
[4.4-0] bc30eeeaaf Bug #49574: univention-virtual-machine-manager-node 7.0.1-2A~4.4.0.201905281723 Bug #49574: numad 0.5+20150602-5 Bug #49574: libvirt 3.0.0-4+deb9u3A~4.3.0.201905250642 doc/errata/staging/libvirt.yaml | 2 +- doc/errata/staging/numad.yaml | 2 +- doc/errata/staging/univention-virtual-machine-manager-node.yaml | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
[4.4-0] 95e44a4904 Bug #49548 uvmm: Restart libvirtd on package upgrade .../univention-virtual-machine-manager-node/debian/changelog | 6 ++++++ .../univention-virtual-machine-manager-node-kvm.postinst | 11 +++++++++++ 2 files changed, 17 insertions(+) Package: univention-virtual-machine-manager-node Version: 7.0.1-3A~4.4.0.201905291307 Branch: ucs_4.4-0 Scope: errata4.4-0 [4.4-0] 5c890d7196 Bug #49574: univention-virtual-machine-manager-node 7.0.1-3A~4.4.0.201905291307 doc/errata/staging/univention-virtual-machine-manager-node.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
OK: libvirt service extension, configurable with UCR libvirt/numa/policy/memory. OK: optional numad support for libvirt OK: tests with default and interleave option OK: yamls
<http://errata.software-univention.de/ucs/4.4/135.html> <http://errata.software-univention.de/ucs/4.4/136.html> <http://errata.software-univention.de/ucs/4.4/137.html>