[Bug 1752838] Re: [SRU] neutron-ovs-cleanup runs earlier than ovsdb-server when there are many port

[Seyeong Kim]

** Summary changed:

- [SRU] sometimes neutron-ovs-cleanup runs earlier than ovsdb-server
+ [SRU] neutron-ovs-cleanup runs earlier than ovsdb-server when there are many port

** Tags added: sts sts-sru-needed

** Description changed:

  [Impact]
  
  neutron-ovs-cleanup service runs earlier than ovsdb-server sometimes.
  
  then, neutron-ovs-cleanup service's status remains failed
  with below error msg
  
  "ProcessExecutionError: Exit code: 1; Stdin: ; Stdout: ; Stderr: ovs-
  vsctl: unix:/var/run/openvswitch/db.sock: database connection failed (No
  such file or directory)"
  
  that is fine for booting.
  
  but.
  
  If someday upgrade pkgs related to neutron, it runs neutron-ovs-cleanup
  again because it is not in active status.
  
  eventually, neutron-ovs-cleanup deletes all ports on running compute
  nodes.
  
  related logs here https://paste.ubuntu.com/p/QkkwP2vPDv/
  
  [Test Case]
- TBD
+ 
+ 1. deploy openstack env
+ 2. run below scripts to add many ports
+ #!/bin/bash
+ 
+ for i in {0..1000}
+ do
+   juju ssh nova-compute/0 "sudo ip link add dummy$i type dummy;sudo ip link set name t-test$i dev dummy$i;sudo ovs-vsctl add-port br-int t-test$i";
+ done
+ 
+ 3. systemctl list-units --failed
+ - check if there is failed neutron-ovs-cleanup service
  
  [Regression]
  Changes dependency on debian/neutron-openvswitch-agent.neutron-ovs-cleanup.service.in
  need to reboot if this patch is affected. If this symptom is not affected your env. no need to reboot.
- 
- [Others]
- Because there is no reproducer, please consider this dependency changes if it is proper.

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https://bugs.launchpad.net/bugs/1752838

Title:
  [SRU] neutron-ovs-cleanup runs earlier than ovsdb-server when there
  are many port

Status in neutron package in Ubuntu:
  New

Bug description:
  [Impact]

  neutron-ovs-cleanup service runs earlier than ovsdb-server sometimes.

  then, neutron-ovs-cleanup service's status remains failed
  with below error msg

  "ProcessExecutionError: Exit code: 1; Stdin: ; Stdout: ; Stderr: ovs-
  vsctl: unix:/var/run/openvswitch/db.sock: database connection failed
  (No such file or directory)"

  that is fine for booting.

  but.

  If someday upgrade pkgs related to neutron, it runs neutron-ovs-
  cleanup again because it is not in active status.

  eventually, neutron-ovs-cleanup deletes all ports on running compute
  nodes.

  related logs here https://paste.ubuntu.com/p/QkkwP2vPDv/

  [Test Case]

  1. deploy openstack env
  2. run below scripts to add many ports
  #!/bin/bash

  for i in {0..1000}
  do
    juju ssh nova-compute/0 "sudo ip link add dummy$i type dummy;sudo ip link set name t-test$i dev dummy$i;sudo ovs-vsctl add-port br-int t-test$i";
  done

  3. systemctl list-units --failed
  - check if there is failed neutron-ovs-cleanup service

  [Regression]
  Changes dependency on debian/neutron-openvswitch-agent.neutron-ovs-cleanup.service.in
  need to reboot if this patch is affected. If this symptom is not affected your env. no need to reboot.

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