On 05/10/2016 04:57 PM, Divya 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.
I'm not on the Neutron team, but in general, Openstack applications
should be employing retry logic internally which anticipates database
deadlocks like these and retries the operation. I'd report this stack
trace (especially if it is reproducible) as a bug to this plugin's
launchpad project.
Thanks,
Divya
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