Bug 2046274

Summary: [ovn-northd] Failure to reconcile duplicate SB Load Balancer entries.
Product: Red Hat Enterprise Linux Fast Datapath Reporter: Dumitru Ceara <dceara>
Component: ovn-2021Assignee: Dumitru Ceara <dceara>
Status: CLOSED ERRATA QA Contact: ying xu <yinxu>
Severity: urgent Docs Contact:
Priority: urgent    
Version: FDP 21.KCC: anusaxen, ctrautma, dceara, jiji, jishi, mmichels, mnunes, skanakal, trozet, vlours
Target Milestone: ---Keywords: CustomerScenariosInitiative
Target Release: FDP 22.B   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: ovn-2021-21.12.0-15.el8fdp Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 2045577 Environment:
Last Closed: 2022-03-30 16:28:33 UTC Type: ---
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: 2045577    

Comment 1 Dumitru Ceara 2022-01-26 14:08:55 UTC 
Simplified reproducer:

ovn-nbctl ls-add ls -- lb-add lb1 10.0.0.1:80 10.0.0.2:80 -- ls-lb-add ls lb1
ovn-nbctl --wait=sb sync

dps=$(ovn-sbctl --bare --columns datapaths list Load_Balancer)
nlb=$(ovn-nbctl --bare --columns _uuid list Load_Balancer)
AT_CHECK([ovn-sbctl create Load_Balancer name=lb1 datapaths="$dps" external_ids="lb_id=$nlb"], [0], [ignore])

check ovn-nbctl --wait=sb sync

# Check that there is exactly one SB:Load_Balancer row here.
Comment 2 Dumitru Ceara 2022-01-26 14:25:43 UTC 
Fix sent for review: http://patchwork.ozlabs.org/project/ovn/list/?series=282940&state=*
Comment 7 ying xu 2022-03-09 03:57:43 UTC 
reproduced on version:
# rpm -qa|grep ovn
ovn-2021-central-21.12.0-11.el8fdp.x86_64
ovn-2021-21.12.0-11.el8fdp.x86_64
ovn-2021-host-21.12.0-11.el8fdp.x86_64

# ovn-nbctl list load_balancer
_uuid               : 644e4c39-2e67-4aa5-9ce2-f3b1f4149199
external_ids        : {}
health_check        : []
ip_port_mappings    : {}
name                : lb0
options             : {}
protocol            : tcp
selection_fields    : []
vips                : {"192.168.1.100"="192.168.1.2"}
[root@dell-per740-53 acl]# ovn-sbctl list load_balancer
_uuid               : e2c20d6f-932b-4eb4-b263-0f8ae0cccbc6
datapaths           : [27f2d4e7-8429-40c3-9bca-d57ad57a509c]
external_ids        : {lb_id="644e4c39-2e67-4aa5-9ce2-f3b1f4149199"}
name                : lb0
options             : {hairpin_orig_tuple="true"}
protocol            : tcp
vips                : {"192.168.1.100"="192.168.1.2"}
[root@dell-per740-53 acl]# 
[root@dell-per740-53 acl]# dps=$(ovn-sbctl --bare --columns datapaths list Load_Balancer)
[root@dell-per740-53 acl]# nlb=$(ovn-nbctl --bare --columns _uuid list Load_Balancer)
[root@dell-per740-53 acl]# ovn-sbctl create Load_Balancer name=lb1 datapaths="$dps" external_ids="lb_id=$nlb"
b842f04b-3564-47b8-bd74-e7b0fe007e79
[root@dell-per740-53 acl]# ovn-sbctl list load_balancer                 --------------------here are two items.
_uuid               : b842f04b-3564-47b8-bd74-e7b0fe007e79
datapaths           : [27f2d4e7-8429-40c3-9bca-d57ad57a509c]
external_ids        : {lb_id="644e4c39-2e67-4aa5-9ce2-f3b1f4149199"}
name                : lb1
options             : {}
protocol            : []
vips                : {}

_uuid               : e2c20d6f-932b-4eb4-b263-0f8ae0cccbc6
datapaths           : [27f2d4e7-8429-40c3-9bca-d57ad57a509c]
external_ids        : {lb_id="644e4c39-2e67-4aa5-9ce2-f3b1f4149199"}
name                : lb0
options             : {hairpin_orig_tuple="true"}
protocol            : tcp
vips                : {"192.168.1.100"="192.168.1.2"}


verified on version:
# ovn-nbctl list load_balancer
_uuid               : 96c14f1c-7152-4470-9cbe-a1753afe6916
external_ids        : {}
health_check        : []
ip_port_mappings    : {}
name                : lb0
options             : {}
protocol            : tcp
selection_fields    : []
vips                : {"192.168.1.100"="192.168.1.2"}
[root@dell-per740-53 acl]# ovn-sbctl list load_balancer
_uuid               : c7f64b13-a56c-4af8-91b0-c7f850c94338
datapaths           : [63810bb0-6fe3-48cb-83e5-52fb08c793f6]
external_ids        : {lb_id="96c14f1c-7152-4470-9cbe-a1753afe6916"}
name                : lb0
options             : {hairpin_orig_tuple="true"}
protocol            : tcp
vips                : {"192.168.1.100"="192.168.1.2"}
[root@dell-per740-53 acl]# 
[root@dell-per740-53 acl]# dps=$(ovn-sbctl --bare --columns datapaths list Load_Balancer)
[root@dell-per740-53 acl]# nlb=$(ovn-nbctl --bare --columns _uuid list Load_Balancer)
[root@dell-per740-53 acl]# ovn-sbctl create Load_Balancer name=lb1 datapaths="$dps" external_ids="lb_id=$nlb"
3e05685a-6d73-4aec-81b6-0b58c6e4d0b2
[root@dell-per740-53 acl]# ovn-nbctl --wait=sb sync
[root@dell-per740-53 acl]# 
[root@dell-per740-53 acl]# ovn-sbctl list load_balancer               --------------------------------only 1 item now.
_uuid               : 3e05685a-6d73-4aec-81b6-0b58c6e4d0b2
datapaths           : [63810bb0-6fe3-48cb-83e5-52fb08c793f6]
external_ids        : {lb_id="96c14f1c-7152-4470-9cbe-a1753afe6916"}
name                : lb0
options             : {hairpin_orig_tuple="true"}
protocol            : tcp
vips                : {"192.168.1.100"="192.168.1.2"}
Comment 9 Andreas Karis 2022-03-25 09:24:50 UTC 
*** Bug 2059812 has been marked as a duplicate of this bug. ***
Comment 10 errata-xmlrpc 2022-03-30 16:28:33 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 (ovn bug fix and enhancement update), 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/RHBA-2022:1144