Handle OSError to properly recycle SSL connection, fix infinite loop (dpkp#155)

* handling OSError

* better error output

* removed traceback logging

---------

Co-authored-by: Alexander Sibiryakov <[email protected]>

Author: wbarnha

kafka/conn.py

@@ -510,7 +510,7 @@ def _try_handshake(self):
         # old ssl in python2.6 will swallow all SSLErrors here...
         except (SSLWantReadError, SSLWantWriteError):
             pass
-        except (SSLZeroReturnError, ConnectionError, TimeoutError, SSLEOFError):
+        except (SSLZeroReturnError, ConnectionError, TimeoutError, SSLEOFError, ssl.SSLError, OSError) as e:
             log.warning('SSL connection closed by server during handshake.')
             self.close(Errors.KafkaConnectionError('SSL connection closed by server during handshake'))
         # Other SSLErrors will be raised to user