Bug 34020 – Increasing CPU usage over time

Bug 34020 - Increasing CPU usage over time


Summary:	Increasing CPU usage over time

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Virtualization - UVMM
Version:	UCS 3.1
Hardware:	Other Linux

Importance:	P3 normal (vote)
Target Milestone:	UCS 3.1-1-errata
Assigned To:	Erik Damrose
QA Contact:	Philipp Hahn

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2014-01-30 16:02 CET by Erik Damrose
Modified:	2014-02-06 12:46 CET (History)
CC List:	4 users (show)

See Also:
What kind of report is it?:	---
What type of bug is this?:	---
Who will be affected by this bug?:	---
How will those affected feel about the bug?:	---
User Pain:
Enterprise Customer affected?:
School Customer affected?:
ISV affected?:
Waiting Support:
Flags outvoted (downgraded) after PO Review:
Ticket number:
Bug group (optional):	Large environments, UCS Performance, Usability
Max CVSS v3 score:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Erik Damrose

2014-01-30 16:02:24 CET

The fix will also be released as an errata for UCS 3.1

+++ This bug was initially created as a clone of Bug #33458 +++

univention-virtual-machine-manager-daemon's CPU usage is increasing over time. In a customer's environment with 95 Xen Hosts and ~240 virtual machines the UVMM (running as virtual machine, 2GB Ram, 2 vCPU's) is unusable slow after 2 days (even over the weekend, without heavy frontend usage).

Comment 1 Erik Damrose

2014-01-31 11:49:00 CET

Backported for ucs 3.1-1:

r47555 univention-virtual-machine-manager-daemon 2.0.36-12.485.201401311127
r47556 update copyright
r47558 2014-01-31-univention-virtual-machine-manager-daemon.yaml

Comment 2 Philipp Hahn

2014-01-31 20:03:22 CET

OK: r47555,r47556,r47558
OK: aptitude install '?source-package(univention-virtual-machine-manager)?installed'
OK: announce_errata -V 2014-01-31-univention-virtual-machine-manager-daemon.yaml

OK: uvmm add qemu+tls://*.knut.univention.de/system # rejected → no new connections
OK: uvmm add qemu+tls://$(hostname -f)/systen # 3 new FDs
OK: uvmm remove qemu+tls://$(hostname -f)/systen # 3 FDs closed

OK: lsof -p `pgrep -f /usr/sbin/univention-virtual-machine-manager-daemon`
OK: less /var/log/univention/virtual-machine-manager-daemon.log

OK: 2.0.36-12.485.201401311127

Comment 3 Moritz Muehlenhoff

2014-02-06 12:46:52 CET

http://errata.univention.de/ucs/3.1/210.html