Improvements

@@ -237,7 +237,7 @@ public class DefaultTbApiUsageStateService implements TbApiUsageStateService {
 
     @Override
     public void onTenantUpdate(TenantId tenantId) {
-        log.info("[{}] On Tenant Update", tenantId);
+        log.info("[{}] On Tenant Update.", tenantId);
         TenantProfile tenantProfile = tenantProfileCache.get(tenantId);
         updateLock.lock();
         try {
@@ -251,7 +251,6 @@ public class DefaultTbApiUsageStateService implements TbApiUsageStateService {
     }
 
     private void updateTenantState(TenantApiUsageState state, TenantProfile profile) {
-        log.info("[{}] On Tenant Update.", state.getTenantId());
         TenantProfileData oldProfileData = state.getTenantProfileData();
         state.setTenantProfileId(profile.getId());
         state.setTenantProfileData(profile.getProfileData());

@@ -164,22 +164,25 @@ public class DefaultTransportApiService implements TransportApiService {
     }
 
     private ListenableFuture<TransportApiResponseMsg> validateCredentials(TransportProtos.ValidateBasicMqttCredRequestMsg mqtt) {
-        DeviceCredentials credentials = deviceCredentialsService.findDeviceCredentialsByCredentialsId(mqtt.getUserName());
-        if (credentials != null) {
-            if (credentials.getCredentialsType() == DeviceCredentialsType.ACCESS_TOKEN) {
-                return getDeviceInfo(credentials.getDeviceId(), credentials);
-            } else if (credentials.getCredentialsType() == DeviceCredentialsType.MQTT_BASIC) {
-                if (!checkMqttCredentials(mqtt, credentials)) {
-                    credentials = null;
+        DeviceCredentials credentials = null;
+        if (mqtt.getUserName() != null) {
+            credentials = deviceCredentialsService.findDeviceCredentialsByCredentialsId(mqtt.getUserName());
+            if (credentials != null) {
+                if (credentials.getCredentialsType() == DeviceCredentialsType.ACCESS_TOKEN) {
+                    return getDeviceInfo(credentials.getDeviceId(), credentials);
+                } else if (credentials.getCredentialsType() == DeviceCredentialsType.MQTT_BASIC) {
+                    if (!checkMqttCredentials(mqtt, credentials)) {
+                        credentials = null;
+                    }
                 }
             }
-        }
-        if (credentials == null) {
-            credentials = checkMqttCredentials(mqtt, EncryptionUtil.getSha3Hash("|", mqtt.getClientId(), mqtt.getUserName()));
             if (credentials == null) {
-                credentials = checkMqttCredentials(mqtt, EncryptionUtil.getSha3Hash(mqtt.getClientId()));
+                credentials = checkMqttCredentials(mqtt, EncryptionUtil.getSha3Hash("|", mqtt.getClientId(), mqtt.getUserName()));
             }
         }
+        if (credentials == null) {
+            credentials = checkMqttCredentials(mqtt, EncryptionUtil.getSha3Hash(mqtt.getClientId()));
+        }
         if (credentials != null) {
             return getDeviceInfo(credentials.getDeviceId(), credentials);
         } else {

@@ -58,7 +58,7 @@ In case of any issues you can examine service logs for errors.
 For example to see ThingsBoard node logs execute the following command:
 
 `
-$ docker-compose logs -f tb-core1 tb-rule-engine1
+$ docker-compose logs -f tb-core1 tb-core2 tb-rule-engine1 tb-rule-engine2 tb-mqtt-transport1 tb-mqtt-transport2
 `
 
 Or use `docker-compose ps` to see the state of all the containers.