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Are there any general guidelines to avoid these db lock timeout issues in
the third party neutron plugins??

Thanks,
Divya

On Tue, May 10, 2016 at 1:57 PM, Divya <divya.hc at gmail.com> wrote:

> Hi,
>    I am trying to run this rally test on stable/kilo
> https://github.com/openstack/rally/blob/master/samples/tasks/scenarios/neutron/create_and_delete_routers.json
>
> with concurrency 50 and iterations 2000.
>
> This test basically cretaes routers and subnets
> and then calls
> router-interface-add
> router-interface-delete
>
>
> And i am running this against 3rd party Nuage plugin.
>
> In the NuagePlugin:
>
> add_router_interface is something like this:
> ----------------------------
> super().add_router_interface
> try:
>   some calls to external rest server
>   super().delete_port
> except:
>
>
> remove_router_interface:
> -----------------------------------
> super().remove_router_interface
> some calls to external rest server
> super().create_port()
> some calls to external rest server
>
>
> If i comment delete_port in the add_router_interface, i am not hitting the
> db lockout issue.
> delete_port or any other operations are not within any transaction.
> So not sure, why this is leading to db lock timeouts in insert to
> routerport
>
> error trace
> http://paste.openstack.org/show/496626/
>
>
>
> Really appreciate any help on this.
>
> Thanks,
> Divya
>
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