[ovs-build] Passed: ovsrobot/ovn#803 (series_186003 - 61cb775)

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Fri Jun 26 14:15:50 UTC 2020

Build Update for ovsrobot/ovn

Build: #803
Status: Passed

Duration: 17 mins and 24 secs
Commit: 61cb775 (series_186003)
Author: Dumitru Ceara
Message: Split SB Port_Group per datapath.

In order to avoid ovn-controller reinstalling all logical flows that
refer a port_group when some ports are added/removed from the port group
we now change the way ovn-northd populates the Southbound DB Port_Group

Instead of copying NB.Port_Group.name to SB.Port_Group.name we now
create one SB.Port_Group record for every datapath that has ports
referenced by the NB.Port_Group.ports field. In order to maintain the
SB.Port_Group.name uniqueness constraint, ovn-northd populates the field
with the value: <SB.Logical_Datapath.tunnel_key>_<NB.Port_Group.name>.

In specific scenarios we see significant improvements in time to
install/remove all logical flows to/from OVS. One such scenario, in the
BZ referenced below has:

$ ovn-nbctl acl-list pg
  from-lport  1001 (inport == @pg && ip) drop
    to-lport  1001 (outport == @pg && ip) drop

Then, incrementally, creates new logical ports on different logical
switches, binds them to OVS interfaces and adds them to the port_group.

Measuring the total time to perform the above steps 500 times (for 500
new ports attached to 100 switches, 5 per switch) on a test setup
we observe an improvement of 50% in time it takes to install all
openflow rules when port_groups are split in the SB database.

Suggested-by: Numan Siddique <numans at ovn.org>
Reported-by: Venkata Anil <anilvenkata at redhat.com>
Reported-at: https://bugzilla.redhat.com/1818128
Signed-off-by: Dumitru Ceara <dceara at redhat.com>
Signed-off-by: 0-day Robot <robot at bytheb.org>

View the changeset: https://github.com/ovsrobot/ovn/commit/61cb775b77dc

View the full build log and details: https://travis-ci.com/github/ovsrobot/ovn/builds/173164168?utm_medium=notification&utm_source=email


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