Set RPC timeout in PluginReportStateAPI to report_interval

See more details on why this is need in the referenced
bug #1948676

Change-Id: I8a95e80ca74edc8f8f394cefc749c4065a8e0575
Closes-Bug: #1948676
(cherry picked from commit 7d552848c2)
(cherry picked from commit 551d36362a)
(cherry picked from commit 7f9a3f3293)

neutron/agent/rpc.py

@@ -82,14 +82,14 @@ class PluginReportStateAPI(object):
         target = oslo_messaging.Target(topic=topic, version='1.2',
                                        namespace=constants.RPC_NAMESPACE_STATE)
         self.client = lib_rpc.get_client(target)
+        self.timeout = cfg.CONF.AGENT.report_interval
 
     def has_alive_neutron_server(self, context, **kwargs):
         cctxt = self.client.prepare()
         return cctxt.call(context, 'has_alive_neutron_server', **kwargs)
 
     def report_state(self, context, agent_state, use_call=False):
-        cctxt = self.client.prepare(
-            timeout=lib_rpc.TRANSPORT.conf.rpc_response_timeout)
+        cctxt = self.client.prepare(timeout=self.timeout)
         # add unique identifier to a report
         # that can be logged on server side.
         # This create visible correspondence between events on

neutron/tests/unit/agent/test_rpc.py

@@ -75,6 +75,11 @@ class AgentRPCPluginApi(base.BaseTestCase):
 
 
 class AgentPluginReportState(base.BaseTestCase):
+    def test_plugin_report_state_timeout_report_interval(self):
+        cfg.CONF.set_override('report_interval', 15, 'AGENT')
+        reportStateAPI = rpc.PluginReportStateAPI('test')
+        self.assertEqual(reportStateAPI.timeout, 15)
+
     def test_plugin_report_state_use_call(self):
         topic = 'test'
         reportStateAPI = rpc.PluginReportStateAPI(topic)

releasenotes/notes/set-report_state-rpc-timeout-to-report_interval-1265a70b0728e08c.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    The agent reporting state to the server now uses a RPC timeout set to
+    the report_interval configuration option value. See `1948676 <https://bugs.launchpad.net/neutron/+bug/1948676>`_.