pnowojski commented on issue #11541: [FLINK-15416][network] add task manager 
netty client retry mechenism
URL: https://github.com/apache/flink/pull/11541#issuecomment-606051120
 
 
   > This pull request references an unassigned Jira ticket. According to the 
code contribution guide, tickets need to be assigned before starting with the 
implementation work.
   
   Please next time do not start work before being assigned to the ticket. 
Especially that there was my unresolved question in the Jira ticket whether we 
want to have such change or not.
   
   In the end I think we can go in the direction of supporting retry mechanism 
in the network stack (including TCP connection loss in the middle of transfer), 
so we can just as well start with the reconnection retries as you are proposing.
   
   I will give more detailed look at your PR later. For starter, could you try 
to provide unit tests for the `PartitionRequestClientFactory` class? For 
example by mocking `NettyClient`?

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