Do not log an error when deleting a linuxbridge does not exist

When you're racing to teardown and relying on RPC, it should not be
considered an error that a bridge does not exist when you're trying to
delete it anyway. This is better served as debug level information.

For context, this shows up over 1000 times in successful
gate-tempest-dsvm-neutron-linuxbridge job runs in a week so it's
probably safe to say it's not contributing to test failures.

Closes-Bug: #1501779

Change-Id: I8e9b27e010d033291497f4e660a97bbae92e75b1
(cherry picked from commit a9dc48f5a4616a505824c3e8520c3dce7436f1b1)

diff --git a/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py b/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py
index 5c09498402973d9b7f37d2e54325d7855a2e9d69..028acc290127d765b596c3bb3e5d208b8fc25200 100644 (file)
--- a/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py
+++ b/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py
@@ -530,7 +530,7 @@ class LinuxBridgeManager(object):
             LOG.debug("Done deleting bridge %s", bridge_name)
 
         else:
-            LOG.error(_LE("Cannot delete bridge %s, does not exist"),
+            LOG.debug("Cannot delete bridge %s; it does not exist",
                       bridge_name)
 
     def remove_empty_bridges(self):