uploader.rb in logstash-output-s3-4.0.5

- old
+ new

@@ -40,14 +40,17 @@
             # When we get here it usually mean that S3 tried to do some retry by himself (default is 3)
             # When the retry limit is reached or another error happen we will wait and retry.
             #
             # Thread might be stuck here, but I think its better than losing anything
             # its either a transient errors or something bad really happened.
-            logger.error("Uploading failed, retrying", :exception => e, :path => file.path, :backtrace => e.backtrace)
+            logger.error("Uploading failed, retrying", :exception => e.class, :message => e.message, :path => file.path, :backtrace => e.backtrace)
             retry
           end
 
           options[:on_complete].call(file) unless options[:on_complete].nil?
+        rescue => e
+          logger.error("An error occured in the `on_complete` uploader", :exception => e.class, :message => e.message, :path => file.path, :backtrace => e.backtrace)
+          raise e # reraise it since we don't deal with it now
         end
 
         def stop
           @workers_pool.shutdown
           @workers_pool.wait_for_termination(nil) # block until its done