08904ba8__in_Ruby__Python_and_C_Clients__What_should_the_client_do_
[Error Code Received] LCB_ETMPFAIL [What does it mean?] The server tried to perform the operation but failed due to a temporary constraint [What should the client do?] 
Backoff and retry after some time.
Handling Runtime Errors in Ruby, Python and C Clients
What should the client do?