xds_server_integration_test is flaky

[easwars]

--- FAIL: Test (10.06s)
    --- FAIL: Test/ServerSideXDS (10.06s)
        xds_server_integration_test.go:144: Started xDS management server at 127.0.0.1:36083
        xds_server_integration_test.go:130: Create bootstrap file at /tmp/xds-server-test869123353/bootstrap with contents
            
            		{
            			"node": {
            				"id": "ENVOY_NODE_ID",
            				"metadata": {
            				    "TRAFFICDIRECTOR_GRPC_HOSTNAME": "trafficdirector"
            			    }
            			},
            			"xds_servers" : [{
            				"server_uri": "127.0.0.1:36083",
            				"channel_creds": [
            					{ "type": "insecure" }
            				]
            			}]
            		}
        tlogger.go:99: server.go:145 [xds] [xds-server 0xc0000ba640] Created xds.GRPCServer  (t=+1.157433ms)
        tlogger.go:99: server.go:185 [xds] [xds-server 0xc0000ba640] Serve() called with options: {Network:tcp Address:localhost:9999}  (t=+1.381139ms)
        tlogger.go:99: bootstrap.go:136 [xds] [xds-bootstrap] Got bootstrap file location "/tmp/xds-server-test869123353/bootstrap"  (t=+1.438441ms)
        tlogger.go:99: bootstrap.go:252 [xds] [xds-bootstrap] Bootstrap config for creating xds-client: &{BalancerName:127.0.0.1:36083 Creds:0xc000120420 TransportAPI:0 NodeProto:id:"ENVOY_NODE_ID" metadata:{fields:{key:"TRAFFICDIRECTOR_GRPC_HOSTNAME" value:{string_value:"trafficdirector"}}} build_version:"gRPC Go 1.34.0-dev" user_agent_name:"gRPC Go" user_agent_version:"1.34.0-dev" client_features:"envoy.lb.does_not_support_overprovisioning" CertProviderConfigs:map[]}  (t=+2.282064ms)
        tlogger.go:99: clientconn.go:238 [core] parsed scheme: ""  (t=+2.362367ms)
        tlogger.go:99: clientconn.go:244 [core] scheme "" not registered, fallback to default scheme  (t=+2.413968ms)
        tlogger.go:99: resolver_conn_wrapper.go:143 [core] ccResolverWrapper: sending update to cc: {[{127.0.0.1:36083  <nil> 0 <nil>}] <nil> <nil>}  (t=+2.48587ms)
        tlogger.go:99: clientconn.go:678 [core] ClientConn switching balancer to "pick_first"  (t=+2.537972ms)
        tlogger.go:99: clientconn.go:693 [core] Channel switches to new LB policy "pick_first"  (t=+2.587273ms)
        tlogger.go:99: clientconn.go:1077 [core] Subchannel Connectivity change to CONNECTING  (t=+2.802779ms)
        tlogger.go:99: client.go:408 [xds] [xds-client 0xc000148700] Created ClientConn to xDS server: 127.0.0.1:36083  (t=+3.004685ms)
        tlogger.go:99: client.go:420 [xds] [xds-client 0xc000148700] Created  (t=+3.18789ms)
        tlogger.go:99: server.go:175 [xds] [xds-server 0xc0000ba640] Created an xdsClient  (t=+3.358095ms)
        tlogger.go:99: clientconn.go:417 [core] Channel Connectivity change to CONNECTING  (t=+4.010313ms)
        tlogger.go:99: clientconn.go:1214 [core] Subchannel picks a new address "127.0.0.1:36083" to connect  (t=+4.124716ms)
        tlogger.go:99: clientconn.go:1077 [core] Subchannel Connectivity change to READY  (t=+6.541484ms)
        tlogger.go:99: clientconn.go:417 [core] Channel Connectivity change to READY  (t=+6.623286ms)
        tlogger.go:99: transport_helper.go:208 [xds] [xds-client 0xc000148700] ADS stream created  (t=+6.858493ms)
        tlogger.go:99: client.go:145 [xds] [xds-client 0xc000148700] ADS response received, type: type.googleapis.com/envoy.api.v2.Listener  (t=+8.019325ms)
        tlogger.go:99: client_xds.go:55 [xds] [xds-client 0xc000148700] Resource with name: grpc/server?udpa.resource.listening_address=localhost:9999, type: *envoy_config_listener_v3.Listener, contains: name:"grpc/server?udpa.resource.listening_address=localhost:9999" api_listener:{api_listener:{type_url:"type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager" value:"\x1a\x12\n\x02\x1a\x00\x12\x0croute-config"}}  (t=+8.283333ms)
        tlogger.go:99: client_xds.go:80 [xds] [xds-client 0xc000148700] Resource with type *envoy_extensions_filters_network_http_connection_manager_v3.HttpConnectionManager, contains rds:{config_source:{ads:{}} route_config_name:"route-config"}  (t=+8.651543ms)
        tlogger.go:99: transport_helper.go:340 [xds] [xds-client 0xc000148700] Sending ACK for response type: ListenerResource, version: , nonce:   (t=+8.725145ms)
        tlogger.go:99: server.go:219 [xds] [xds-server 0xc0000ba640] Started a net.Listener on 127.0.0.1:9999  (t=+8.985352ms)
        tlogger.go:99: server.go:252 [xds] [xds-server 0xc0000ba640] Watch started on resource name grpc/server?udpa.resource.listening_address=localhost:9999  (t=+9.058954ms)
        tlogger.go:99: clientconn.go:238 [core] parsed scheme: ""  (t=+9.556668ms)
        tlogger.go:99: clientconn.go:244 [core] scheme "" not registered, fallback to default scheme  (t=+9.61087ms)
        tlogger.go:99: resolver_conn_wrapper.go:143 [core] ccResolverWrapper: sending update to cc: {[{localhost:9999  <nil> 0 <nil>}] <nil> <nil>}  (t=+9.689272ms)
        tlogger.go:99: clientconn.go:678 [core] ClientConn switching balancer to "pick_first"  (t=+9.744374ms)
        tlogger.go:99: clientconn.go:693 [core] Channel switches to new LB policy "pick_first"  (t=+10.978008ms)
        tlogger.go:99: clientconn.go:1077 [core] Subchannel Connectivity change to CONNECTING  (t=+11.196514ms)
        tlogger.go:99: picker_wrapper.go:161 [core] blockingPicker: the picked transport is not ready, loop back to repick  (t=+11.41392ms)
        tlogger.go:99: clientconn.go:1214 [core] Subchannel picks a new address "localhost:9999" to connect  (t=+11.490423ms)
        tlogger.go:99: clientconn.go:417 [core] Channel Connectivity change to CONNECTING  (t=+11.76043ms)
        tlogger.go:99: clientconn.go:417 [core] Channel Connectivity change to SHUTDOWN  (t=+10.005150247s)
        tlogger.go:99: clientconn.go:1077 [core] Subchannel Connectivity change to SHUTDOWN  (t=+10.00524245s)
        tlogger.go:99: clientconn.go:417 [core] Channel Connectivity change to SHUTDOWN  (t=+10.005367153s)
        tlogger.go:99: clientconn.go:1077 [core] Subchannel Connectivity change to SHUTDOWN  (t=+10.005441055s)
        tlogger.go:99: client.go:463 [xds] [xds-client 0xc000148700] Shutdown  (t=+10.005510457s)
        tlogger.go:99: server.go:255 [xds] [xds-server 0xc0000ba640] Watch cancelled on resource name grpc/server?udpa.resource.listening_address=localhost:9999  (t=+10.005841266s)
        xds_server_integration_test.go:183: rpc EmptyCall() failed: rpc error: code = DeadlineExceeded desc = context deadline exceeded
        tlogger.go:99: transport_helper.go:315 [xds] [xds-client 0xc000148700] ADS stream is closed with error: xds: stream.Recv() failed: rpc error: code = Canceled desc = grpc: the client connection is closing  (t=+10.006032572s)
FAIL
FAIL	google.golang.org/grpc/xds/internal/test	10.338s
ok  	google.golang.org/grpc/xds/internal/testutils	0.077s
?   	google.golang.org/grpc/xds/internal/testutils/fakeclient	[no test files]
?   	google.golang.org/grpc/xds/internal/testutils/fakeserver	[no test files]
?   	google.golang.org/grpc/xds/internal/version	[no test files]
FAIL