Bug 1662574

Summary: RHOS13-Multipath-switchover: Unable to re-attach volume or create volume from image after multipath switchover
Product: Red Hat OpenStack Reporter: bkopilov <bkopilov>
Component: openstack-cinderAssignee: Jon Bernard <jobernar>
Status: CLOSED NOTABUG QA Contact: Tzach Shefi <tshefi>
Severity: urgent Docs Contact: Kim Nylander <knylande>
Priority: high    
Version: 13.0 (Queens)CC: abishop, eharney, gcharot, jobernar, jvisser, pgrist, tshefi
Target Milestone: ---Keywords: Triaged, ZStream
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Last Closed: 2020-12-11 16:34:34 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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compute0 logs
none
controller0.tar.gz none

Description bkopilov 2018-12-30 09:31:48 UTC 
Description of problem:
RHOS13 , 3 controllers , 2 computes + netapp as storage backend.
Multipath enabled .

How to reproduce:
Create an instance
Creave a volume.
Attach the volume to the instance 
multipath -ll shows two path.

route the active path to l0 (black hole) and swichover occures , the path status changed to: failed faulty
and the other path comes to active.

detach existing volume - > works.
attach again - FAILS .




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Comment 1 bkopilov 2018-12-30 09:59:54 UTC 
Created attachment 1517441 [details]
compute0 logs
Comment 3 bkopilov 2019-01-06 09:25:53 UTC 
Hi , 
I tried another scenario :
On the controller side ,  route to l0 one of the active paths.

We have one of the path not usage , Tried to create a volume from image - Failed.
See attached logs - controller0.tar.gz


Benny
Comment 4 bkopilov 2019-01-06 09:26:23 UTC 
Created attachment 1518757 [details]
controller0.tar.gz