Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 1509614

Summary: [downstream clone - 4.1.8] "No such drive" error on live merge of one disk causes merge of other disk to fail on engine.
Product: Red Hat Enterprise Virtualization Manager Reporter: rhev-integ
Component: vdsmAssignee: Ala Hino <ahino>
Status: CLOSED ERRATA QA Contact: Kevin Alon Goldblatt <kgoldbla>
Severity: high Docs Contact:
Priority: unspecified    
Version: 4.1.4CC: ahino, amureini, bazulay, bcholler, bgraveno, bzlotnik, kshukla, lsurette, lveyde, michal.skrivanek, ratamir, rbalakri, Rhev-m-bugs, srevivo, tnisan, ycui, ykaul
Target Milestone: ovirt-4.1.8Keywords: ZStream
Target Release: ---Flags: lsvaty: testing_plan_complete-
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: vdsm v4.19.40 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1488542 Environment:
Last Closed: 2017-12-12 09:24:07 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: 1488542    
Bug Blocks:    

Description rhev-integ 2017-11-05 07:38:44 UTC 
+++ This bug is a downstream clone. The original bug is: +++
+++   bug 1488542 +++
======================================================================

Description of problem:

During live snapshot deletion on vm holding 5 disks. We see that the merge is sucessfull for 4 disks and 1 fails on engine side but completes on host side.
According to vdsm.log it appears that when a Live Merge for one disk was being performed, a No such drive error was reported while checking the block job after the pivot had completed. The volume that caused this was the volume that was just pivoted from, i.e. the original active volume. However this merge completed sucessfully but caused other disk merge operation to fail on engine side but complete on host side.  The images are marged illegal on rhevm database and lv's remain unremoved on Host.

Issue seems similar to the bug https://bugzilla.redhat.com/show_bug.cgi?id=1447437.  Opening this new bug to check further if this new bug or regression. 


Version-Release number of selected component (if applicable):
rhevm-4.1.4.2-0.1.el7.noarch
libvirt-daemon-2.0.0-10.el7_3.9.x86_64
vdsm-4.19.20-1.el7ev.x86_64

How reproducible:
No

Steps to Reproduce:
1.
2.
3.

Actual results:
"No such drive" LookupErrors occurred while checking a block job after the pivot had completed, causing the engine to "fail" merges for two other disk


Expected results:
Merge should complete without any errors.

(Originally by Koutuk Shukla)
Comment 18 Kevin Alon Goldblatt 2017-12-04 18:23:19 UTC 
Verified with the following code:
----------------------------------------
ovirt-engine-4.1.8.2-0.1.el7.noarch
vdsm-4.19.41-1.el7ev.x86_64

Verified with the following scenario:
----------------------------------------
1. Created a vm with at least 10 disks
2. Start the vm and write to all disks
3. Create snapshot
4. Delete snapshot >>>>> successful delete , no Drive not found errors


Moving to VERIFIED
Comment 21 errata-xmlrpc 2017-12-12 09:24:07 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-2017:3428
Comment 22 Daniel Gur 2019-08-28 13:15:08 UTC 
sync2jira
Comment 23 Daniel Gur 2019-08-28 13:20:11 UTC 
sync2jira