[VOL-3981] Voltha Core restarts if it can't subscribe to Kafka
This commit fixes the following issues:
1) It creates a loop to try to resubscribe to kafka on error. This
is an issue that occurs randomly, especially when the kafka broker
is up and running but not truly ready to create a new topic.
2) Fixes an issue where the event proxy start was incorrect setting
the cluster messaging bus probe to out of service and never sets it
to running. This was causing the Core to wait forever for the
probe to be ready.
Change-Id: Idf22481f85e4b576440301f2859da7ddf2d8c688
diff --git a/vendor/github.com/cenkalti/backoff/v3/LICENSE b/vendor/github.com/cenkalti/backoff/v3/LICENSE
new file mode 100644
index 0000000..89b8179
--- /dev/null
+++ b/vendor/github.com/cenkalti/backoff/v3/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Cenk Altı
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.