Bug 1159227
| Summary: | lxc domain startup is slow | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Ján Tomko <jtomko> |
| Component: | libvirt | Assignee: | Ján Tomko <jtomko> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.1 | CC: | dyuan, rbalakri, shyu, xuzhang, yanyang |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-1.2.8-6.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-03-05 07:46:41 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Now pushed upstream:
commit 7ead1a5d91a93b5614deeef7b0227bffcea9740d
Author: Ján Tomko <jtomko>
CommitDate: 2014-11-04 13:40:45 +0100
Do not probe for power mgmt capabilities in lxc emulator
It fails after 30 seconds with this error:
error : virDBusCall:1429 : error from service: CanSuspend:
Did not receive a reply. Possible causes include: the remote
application did not send a reply, the message bus security
policy blocked the reply, the reply timeout expired, or the
network connection was broken.
Only probe for the power mgmt capabilities when driver is non-NULL.
This speeds up domain startup by 30 seconds.
https://bugzilla.redhat.com/show_bug.cgi?id=1159227
git describe: v1.2.10-16-g7ead1a5
Verify it with libvirt-1.2.8-6.el7.x86_64
# cat lxc.xml
<domain type='lxc'>
<name>lxc-test</name>
<memory unit='KiB'>1048576</memory>
<currentMemory unit='KiB'>1048576</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64'>exe</type>
<init>/bin/sh</init>
</os>
<clock offset='utc'>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='hpet' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/libexec/libvirt_lxc</emulator>
<interface type='network'>
<mac address='52:54:00:8f:13:eb'/>
<source network='default'/>
</interface>
<console type='pty'/>
</devices>
</domain>
# virsh -c lxc:/// define lxc.xml
Domain lxc-test defined from lxc.xml
# time virsh -c lxc:/// start lxc-test
Domain lxc-test started
real 0m0.413s
user 0m0.015s
sys 0m0.006s
As lxc startup is not slow again, mark it as verified
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2015-0323.html |
Description of problem: lxc domain startup is slow Version-Release number of selected component (if applicable): libvirt-1.2.8-5.el7.x86_64 How reproducible: 1000 ‰ Steps to Reproduce: 1. Have an LXC domain: <domain type='lxc'> <name>test</name> <memory unit='KiB'>1048576</memory> <os> <type arch='x86_64'>exe</type> <init>/bin/sh</init> </os> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <console/> </devices> </domain> 2. virsh -c lxc:/// start test --console Actual results: Shell prompt appears after 30 seconds. Expected results: Shell prompt appears immediately.