On Tue, Aug 31, 2021 at 8:28 PM aginwala <[email protected]> wrote:
>
>
>
> On Tue, Aug 31, 2021 at 11:20 AM Frode Nordahl <[email protected]> 
> wrote:
>>
>> On Tue, Aug 31, 2021 at 8:01 PM aginwala <[email protected]> wrote:
>> >
>> > Hi:
>> >
>> > Thanks for this improvement. As per our recent tests with ovs 2.16 with 
>> > 5.4* linux, the problem is that ovs-vswitchd adds ovs-record-hostname as 
>> > required in the systemctl params.
>> > Because of that debian installation of ovs always complaints
>> >
>> > Setting up openvswitch-switch (2.16.0-1) ...
>> > insserv: warning: script 'iproutepolicy' missing LSB tags and overrides
>> > Failed to restart openvswitch-switch.service: Unit 
>> > ovs-record-hostname.service not found.
>> > invoke-rc.d: initscript openvswitch-switch, action "restart" failed.
>> > * openvswitch-switch.service - LSB: Open vSwitch switch
>> >      Loaded: loaded (/etc/init.d/openvswitch-switch; generated)
>> >      Active: inactive (dead) since Tue 2021-08-31 00:59:30 -07; 2h 24min 
>> > ago
>> >        Docs: man:systemd-sysv-generator(8)
>> >
>> > Main PID: 5960 (code=exited, status=0/SUCCESS)
>> >
>> > dpkg: error processing package openvswitch-switch (--install):
>> >  installed openvswitch-switch package post-installation script subprocess 
>> > returned error exit status 1
>> >
>> > Installation is ok as dpkg:error shows confusion
>> > dpkg -l | grep openv
>> >
>> > Can be also seen on restart if vswitchd fails as debain install
>> > systemctl restart openvswitch-switch.service
>> > Failed to restart openvswitch-switch.service: Unit 
>> > ovs-record-hostname.service not found.
>> >
>> > With ovs-ctl things works as expected.
>> > Temp fix if we want to skip ovs-host-record for now is.
>> >
>> > rm 
>> > /etc/systemd/system/openvswitch-switch.service.requires/ovs-record-hostname.service
>> > systemctl daemon-reload
>> >
>> >
>> > I saw upstream ubuntu does add ovs-record.service for debian packaging 
>> > https://urldefense.com/v3/__https://code.launchpad.net/*fnordahl/ubuntu/*source/openvswitch/*git/openvswitch/*merge/398174__;fisrKw!!IKRxdwAv5BmarQ!NOVNzYnNX0z7Is75RKTpkbzKWTqqhxvHQ8m4xEVtweIy9WE-BCw76yxVCx3SwlA$
>> >
>> >
>> > Seems it makes reasonable to port ovs-record-hostname for ovs debian 
>> > packaging too to avoid error for 2.16.0 and master ovs branch to avoid 
>> > systemctl issues.
>> >
>> > Please advice.
>>
>> Thank you for reaching out. The change made to the Open vSwitch
>> repository itself for the ovn-ctl script was of an optional nature and
>> is only opted into by those who want to use it. As you have found we
>> do make use of this in Ubuntu, here we provide real systemd service
>> files, including one for the separate recording of hostname, and do
>> not rely on the systemd-sysv compatibility layer.
>>
>> I am not sure how the package you are looking at here came into this
>> state, it is almost as if someone halfway enabled the feature? What is
>> the source for the package you are displaying here?
>>
> https://github.com/openvswitch/ovs/tree/v2.16.0 and building with debian 
> build on kernel 5.4-80
>
> So, on ubuntu itself ovs-record-hostname can be optional for openvswitch vs 
> being set as required on systemctl settings in 5.4* kernel.
> or
> add ovs-record-hostname.service in 
> https://github.com/openvswitch/ovs/tree/v2.16.0/debian so that debain 
> compilation will set that up.
> That's what I can read from the current code so far.

So I built debs from the currently tagged v2.16.0 sources and
installed them on a clean system without any prior installation of
Open vSwitch and I see no mention of a ovs-record-hostname.service and
I have no issues starting or restarting the
openvswitch-switch.service.  This service is also not mentioned in the
debian package recipe in the OVS repository.

Could the files you see in /etc/systemd be left over from a different
package installation? Or am I misunderstanding the problem?

-- 
Frode Nordahl

>>
>> --
>> Frode Nordahl
>>
>> >
>> >
>> >
>> > On Tue, Mar 2, 2021 at 2:42 AM Ilya Maximets <[email protected]> wrote:
>> >>
>> >> On 3/2/21 6:52 AM, Frode Nordahl wrote:
>> >> > On Mon, Mar 1, 2021 at 9:26 PM Ilya Maximets <[email protected]> wrote:
>> >> >>
>> >> >> On 2/25/21 4:28 PM, Frode Nordahl wrote:
>> >> >>> ovs-ctl determines the system FQDN or hostname and records it in
>> >> >>> the `external-ids:hostname` field of the `Open-vSwitch` table on
>> >> >>> system startup if it is not already set.
>> >> >>>
>> >> >>> This value may be consumed by downstream software and having it
>> >> >>> unset or set to a incorrect value could lead to erratic behavior
>> >> >>> of a system.
>> >> >>>
>> >> >>> When a system is configured to use an Open vSwitch controlled
>> >> >>> datapath as its only network connection, the current ordering of
>> >> >>> events would always record a unreliable hostname.
>> >> >>>
>> >> >>> To tackle this problem this patchs adds an optional argument that
>> >> >>> allows starting Open vSwitch without recording the hostname in
>> >> >>> the database as well as a new ctl command to record the hostname
>> >> >>> separately. This command can be called by the system startup
>> >> >>> scripts when the system is ready to collect and record this
>> >> >>> information.
>> >> >>>
>> >> >>> Reported-At: 
>> >> >>> https://urldefense.com/v3/__https://bugs.launchpad.net/bugs/1915829__;!!IKRxdwAv5BmarQ!NOVNzYnNX0z7Is75RKTpkbzKWTqqhxvHQ8m4xEVtweIy9WE-BCw76yxV8PBtinU$
>> >> >>> Signed-off-by: Frode Nordahl <[email protected]>
>> >> >>> ---
>> >> >>>  utilities/ovs-ctl.in | 41 +++++++++++++++++++++++++++--------------
>> >> >>>  1 file changed, 27 insertions(+), 14 deletions(-)
>> >> >>
>> >> >> Thanks!
>> >> >> I added a note to the NEWS file and applied to master.
>> >> >
>> >> > Excellent, thank you for review and merge!
>> >> >
>> >> >> We may consider backports down to 2.13 LTS.  Let me know
>> >> >> if it's needed.
>> >> >
>> >> > We will consume this at 2.13 and onwards, so a backport all the way to
>> >> > 2.13 LTS would really be helpful.
>> >> >
>> >>
>> >> Done.
>> >> _______________________________________________
>> >> dev mailing list
>> >> [email protected]
>> >> https://urldefense.com/v3/__https://mail.openvswitch.org/mailman/listinfo/ovs-dev__;!!IKRxdwAv5BmarQ!NOVNzYnNX0z7Is75RKTpkbzKWTqqhxvHQ8m4xEVtweIy9WE-BCw76yxVFbGw-DU$
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