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https://issues.apache.org/jira/browse/RATIS-1115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rui Wang updated RATIS-1115:
----------------------------
    Description: 
Current server does 

 
{code:java}
if (Header) {    
  streams.computeIfAbsent(request.getStreamId(), id ->createStream());
  ...  
}
{code}
 

 

It is possible that clients send multiple headers so the entry already exists. 
We might choose to send a error reply without accepting duplicated headers. 

 

  was:
Current server does 

 

if (Header) {

   streams.computeIfAbsent(request.getStreamId(), id ->createStream). 

   ... 

}

 

It is possible that clients send multiple headers so the entry already exists. 
We might choose to send a error reply without accepting duplicated headers. 

 


> NettyServerStreamRpc should handle error cases like duplicate headers. 
> -----------------------------------------------------------------------
>
>                 Key: RATIS-1115
>                 URL: https://issues.apache.org/jira/browse/RATIS-1115
>             Project: Ratis
>          Issue Type: Sub-task
>            Reporter: Rui Wang
>            Assignee: Rui Wang
>            Priority: Major
>
> Current server does 
>  
> {code:java}
> if (Header) {    
>   streams.computeIfAbsent(request.getStreamId(), id ->createStream());
>   ...  
> }
> {code}
>  
>  
> It is possible that clients send multiple headers so the entry already 
> exists. We might choose to send a error reply without accepting duplicated 
> headers. 
>  



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