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Bug 1713213

Summary: [downstream clone - 4.3.5] RHV-M requesting four GetDeviceListVDSCommand when editing storage domain
Product: Red Hat Enterprise Virtualization Manager Reporter: RHV bug bot <rhv-bugzilla-bot>
Component: ovirt-engineAssignee: shani <sleviim>
Status: CLOSED ERRATA QA Contact: Shir Fishbain <sfishbai>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 4.1.4CC: aefrat, emarcus, lsurette, rgolan, Rhev-m-bugs, sleviim, srevivo, tnisan
Target Milestone: ovirt-4.3.5Keywords: Performance, ZStream
Target Release: ---Flags: lsvaty: testing_plan_complete-
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
In this release, a new notification has been added when loading a large number of LUNs: "Loading... A large number of LUNs may slow down the operation."
 Story Points: ---
Clone Of: 1475774 Environment:
Last Closed: 2019-08-12 11:53:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Storage RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1475774    
Bug Blocks:    

Description RHV bug bot 2019-05-23 07:43:08 UTC 
+++ This bug is a downstream clone. The original bug is: +++
+++   bug 1475774 +++
======================================================================

Description of problem:

When we click on Manage domain , RHV-M is requesting 4 GetDeviceListVDSCommand with same arguments on the same host. The whole process can take around 1-2 minute in an environment with large number of LUNs.

For the customer, it was taking around 90 seconds in a host which is having 181 LUNs. Each GetDeviceListVDSCommand was taking around 15-20 seconds (Expected with large number of LUNs). The customer is using RHEV 3.6 and I can see 6  GetDeviceListVDSCommand however it's reduced to 4 in 4.1. 


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

RHV 4.1
rhevm-4.1.3.5-0.1.el7.noarch

How reproducible:

100%

Steps to Reproduce:

1. Click on manage storage domain and find the GetDeviceListVDSCommand executed in the engine log.

Actual results:

Editing storage domain can take some time to show up if the host is having large number of LUNs.

Expected results:

If all the calls are same, issue only 1 call while clicking edit storage domain.

Additional info:

(Originally by Nijin Ashok)
Comment 5 RHV bug bot 2019-05-23 07:43:17 UTC 
This bug has not been marked as blocker for oVirt 4.3.0.
Since we are releasing it tomorrow, January 29th, this bug has been re-targeted to 4.3.1.

(Originally by Sandro Bonazzola)
Comment 7 RHV bug bot 2019-05-23 07:43:20 UTC 
Shani, please add a message in the dialog that having a high number of LUNs will slow the operation down

(Originally by Tal Nisan)
Comment 13 Shir Fishbain 2019-07-07 14:11:48 UTC 
Verified 

GetDeviceListVDSCommand still appears 4 times in the engine log.
When clicking on manage domain, a message in the dialog appears: "Loading... A large number of LUNs may slow down the operation"

ovirt-engine-4.3.5.3-0.1.el7.noarch
vdsm-4.30.23-2.el7ev.x86_64
Comment 17 errata-xmlrpc 2019-08-12 11:53:28 UTC 
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/RHEA-2019:2431
Comment 18 Daniel Gur 2019-08-28 13:13:02 UTC 
sync2jira
Comment 19 Daniel Gur 2019-08-28 13:17:14 UTC 
sync2jira