prepare 8.1.6 release (#220)

## [8.1.6] - 2023-09-06
### Changed:
- Recoverable errors are logged as a warning not an error. (Thanks,
[fritzdj](#219)!)

---------

Co-authored-by: Ben Woskow <[email protected]>
Co-authored-by: Eli Bishop <[email protected]>
Co-authored-by: LaunchDarklyCI <[email protected]>
Co-authored-by: LaunchDarklyCI <[email protected]>
Co-authored-by: hroederld <[email protected]>
Co-authored-by: Robert J. Neal <[email protected]>
Co-authored-by: Robert J. Neal <[email protected]>
Co-authored-by: Ember Stevens <[email protected]>
Co-authored-by: ember-stevens <[email protected]>
Co-authored-by: Matthew M. Keeler <[email protected]>
Co-authored-by: charukiewicz <[email protected]>
Co-authored-by: LaunchDarklyReleaseBot <[email protected]>
Co-authored-by: Christian Charukiewicz <[email protected]>
Co-authored-by: Matthew M. Keeler <[email protected]>
Co-authored-by: Ben Woskow <[email protected]>
Co-authored-by: Gavin Whelan <[email protected]>
Co-authored-by: Elliot <[email protected]>
Co-authored-by: Gabor Angeli <[email protected]>
Co-authored-by: Elliot <[email protected]>
Co-authored-by: Louis Chan <[email protected]>
Co-authored-by: prpnmac <[email protected]>
Co-authored-by: Louis Chan <[email protected]>
Co-authored-by: Daniel Fritz <[email protected]>

Author: 16 people

ldclient/impl/datasource/polling.py

@@ -38,8 +38,11 @@ def _poll(self):
                 log.info("PollingUpdateProcessor initialized ok")
                 self._ready.set()
         except UnsuccessfulResponseException as e:
-            log.error(http_error_message(e.status, "polling request"))
-            if not is_http_error_recoverable(e.status):
+            http_error_message_result = http_error_message(e.status, "polling request")
+            if is_http_error_recoverable(e.status):
+                log.warning(http_error_message_result)
+            else:
+                log.error(http_error_message_result)
                 self._ready.set() # if client is initializing, make it stop waiting; has no effect if already inited
                 self.stop()
         except Exception as e:

ldclient/impl/datasource/streaming.py

@@ -83,10 +83,14 @@ def run(self):
                         log.info("StreamingUpdateProcessor initialized ok.")
                         self._ready.set()
             except UnsuccessfulResponseException as e:
-                log.error(http_error_message(e.status, "stream connection"))
                 self._record_stream_init(True)
                 self._es_started = None
-                if not is_http_error_recoverable(e.status):
+
+                http_error_message_result = http_error_message(e.status, "stream connection")
+                if is_http_error_recoverable(e.status):
+                    log.warning(http_error_message_result)
+                else:
+                    log.error(http_error_message_result)
                     self._ready.set()  # if client is initializing, make it stop waiting; has no effect if already inited
                     self.stop()
                     break