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Bug 1602404 - [Netvirt] Sporadic failures Random ping failure in snat conntrack mode
[Netvirt] Sporadic failures Random ping failure in snat conntrack mode
Status: CLOSED ERRATA
Product: Red Hat OpenStack
Classification: Red Hat
Component: opendaylight (Show other bugs)
13.0 (Queens)
Unspecified Unspecified
high Severity high
: z2
: 13.0 (Queens)
Assigned To: Aswin Suryanarayanan
Noam Manos
Netvirt
: Triaged, ZStream
Depends On:
Blocks:
  Show dependency tree / graph
 
Reported: 2018-07-18 06:03 EDT by Aswin Suryanarayanan
Modified: 2018-10-18 03:25 EDT (History)
8 users (show)

See Also:
Fixed In Version: opendaylight-8.3.0-2.el7ost
Doc Type: Bug Fix
Doc Text:
Some flows were missing from the SNAT table and the flow programming generated an error due to a missing group. As a result, SNAT traffic from compute, where the flow is missing, failed and affected most of the traffic. As a result, the flow programming now waits for the group to be added. The group is always present and SNAT works.
Story Points: ---
Clone Of:
Environment:
N/A
Last Closed: 2018-08-29 12:20:16 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
OpenDaylight Bug NETVIRT-1352 None None None 2018-07-18 06:04 EDT
OpenDaylight gerrit 74016 None None None 2018-07-19 11:15 EDT
Red Hat Product Errata RHSA-2018:2598 None None None 2018-08-29 12:21 EDT

  None (edit)
Description Aswin Suryanarayanan 2018-07-18 06:03:23 EDT 
Description of problem: The table 26 entry in a non-napt switch is missing since the flow is programmed before the group.


Version-Release number of selected component (if applicable):


How reproducible: This is a random bug and happens when we try creating routers multiple times.


Steps to Reproduce:
1.
2.
3.

Actual results:Ping from all vms to external n/w should work


Expected results: Ping fails for vms in compute where the flow is missing 



Additional info: [1] fails due to the same reason.

[1]https://jenkins.opendaylight.org/releng/job/netvirt-csit-1node-openstack-queens-upstream-stateful-snat-conntrack-fluorine/128/
Comment 11 Joanne O'Flynn 2018-08-14 05:45:43 EDT 
This bug is marked for inclusion in the errata but does not currently contain draft documentation text. To ensure the timely release of this advisory please provide draft documentation text for this bug as soon as possible.

If you do not think this bug requires errata documentation, set the requires_doc_text flag to "-".


To add draft documentation text:

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Comment 14 errata-xmlrpc 2018-08-29 12:20:16 EDT 
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://access.redhat.com/errata/RHSA-2018:2598
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