Bug 1376077

Summary:	pick-up fix for Nexus threads prematurely terminating sessions
Product:	Red Hat OpenStack	Reporter:	caboucha
Component:	openstack-neutron	Assignee:	Assaf Muller <amuller>
Status:	CLOSED NOTABUG	QA Contact:	Toni Freger <tfreger>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	8.0 (Liberty)	CC:	amuller, chrisw, nyechiel, srevivo, tfreger
Target Milestone:	---
Target Release:	10.0 (Newton)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	Cause: During port scaling, ML2 Plugin Nexus MD Driver threads closing connections before other thread complete. Consequence: Nexus limit of 8 connections exceeded. Fix: Added locks to threads to prevent thread from interfering with other threads operations.	Story Points:	---
Clone Of:	1376063	Environment:
Last Closed:	2016-09-14 15:28:51 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:	1376063, 1376080, 1376081
Bug Blocks:	1376069, 1376073, 1376076, 1376086

Description caboucha 2016-09-14 15:26:50 UTC

+++ This bug was initially created as a clone of Bug #1376063 +++

Description of problem:
Please incorporate the Nexus MD ML2 Plugin Solution for OSP8:
https://review.openstack.org/#/c/358817/

There exists a neutron process with both a Nexus replay thread and a config thread. These threads share the same ssh session. When they are talking to Nexus at the same time, I saw one thread closing the nexus ssh session before the other thread was complete resulting in unexpected errors.

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

How reproducible:
Very much so with scale and replay configured

Steps to Reproduce:
1. Scale Ml2 Port traffic
2. Replay configured in ml2_conf_cisco.ini file (switch_heartbeat_time = 30)
3.

Actual results:


Expected results:


Additional info:

--- Additional comment from  on 2016-09-14 11:23:11 EDT ---

The following is the correct patchset for OSP9 as 349748 was abandoned.
https://review.openstack.org/350770