Bug 1844933 - [RHOSP16] Overcloud deployment is failing as overcloud node fail to get ip from dnsmasq during PXE boot
Summary: [RHOSP16] Overcloud deployment is failing as overcloud node fail to get ip fr...
Keywords:
Status: CLOSED DUPLICATE of bug 1847039
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: dnsmasq
Version: 16.0 (Train)
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
: ---
Assignee: Petr Menšík
QA Contact: Ofer Blaut
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-06-08 04:24 UTC by Khomesh Thakre
Modified: 2020-12-07 16:44 UTC (History)
5 users (show)

Fixed In Version:
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Last Closed: 2020-12-07 16:44:03 UTC
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Description Khomesh Thakre 2020-06-08 04:24:35 UTC 
Description of problem:
Dnsmasq is not providing IP during the pxe boot causing the overcloud deployment failure.

During the pxe boot, overcloud node request for the DHCP IP but dnsmasq didn't responds. 

Using tcpdump we verify that that the dhcp request reaches to ctlplane tap devices inside the namspace.

Version-Release number of selected component (if applicable):
Red Hat OpenStack Platform release 16.0.2 (Train)
Red Hat Enterprise Linux release 8.1 (Ootpa)



How reproducible:


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Additional info:
Comment 4 Brian Haley 2020-06-18 16:43:28 UTC 
Do you have the logs available, or can I login to the controller?  I'm curious what the contents of the dhcp lease directory are, as well as a trace of the dhcp-agent log.

This could also be related to https://bugzilla.redhat.com/show_bug.cgi?id=1847039 where the agent is having trouble reading the leases file and not releasing something it should.
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