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Bug 1469838

Summary: [RFE] Support in-service restart
Product: Red Hat Enterprise Linux 7 Reporter: Flavio Leitner <fleitner>
Component: openvswitchAssignee: Timothy Redaelli <tredaelli>
Status: CLOSED CURRENTRELEASE QA Contact: Rick Alongi <ralongi>
Severity: unspecified Docs Contact: Marc Muehlfeld <mmuehlfe>
Priority: medium    
Version: 7.3CC: atragler, echaudro, igkioka, pasik, qding, ralongi, sgolovat, sukulkar, tredaelli
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: openvswitch-2.8.0-4.el7fdb Doc Type: Enhancement
Doc Text:
Downtime is now shorter when restarting Open vSwitch Previously, if you restarted Open vSwitch (OVS), the traffic was interrupted for a long time and flows were lost. This update enhances OVS to reduce the downtime when you restart the *openvswitch* service. Additionally, the service now restores all flows. As a result, the networking traffic is minimally impacted by restarts.
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-02-16 17:27:50 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:
Bug Depends On:    
Bug Blocks: 1472866    

Description Flavio Leitner 2017-07-12 00:01:14 UTC
Description of problem:

This bugzilla is a request to support restarting openvswitch (with or without DPDK) with minimal disruption in the networking.

Version-Release number of selected component (if applicable):
2.7.1

How reproducible:
Always

Steps to Reproduce:
1. systemctl restart openvswitch

Actual results:
Traffic stops for long period of time and flows are lost

Expected results:
Flows are restored and the networking traffic is minimally impacted.

Comment 3 Timothy Redaelli 2017-08-03 14:31:12 UTC
RFC patch sent upstream: https://mail.openvswitch.org/pipermail/ovs-dev/2017-July/336440.html

Comment 14 Alan Pevec 2018-01-18 01:30:01 UTC
*** Bug 1525618 has been marked as a duplicate of this bug. ***

Comment 16 Flavio Leitner 2018-02-16 17:27:50 UTC
Closing resolved bugs.

Comment 17 Ioanna Gkioka 2018-03-19 09:26:49 UTC
The openvwitch component is delivered through the fast datapath channel, it is not documented in release notes.