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https://issues.apache.org/jira/browse/BOOKKEEPER-485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506625#comment-13506625
 ] 

Sijie Guo commented on BOOKKEEPER-485:
--------------------------------------

{quote}
+                    } else if (future.isSuccess() && state == 
ConnectionState.DISCONNECTED) {
+                        LOG.error("Closed before connection completed, clean 
up: " + addr);
+                        future.getChannel().close();
+                        rc = 
BKException.Code.BookieHandleNotAvailableException;
+                        channel = null;
+                        state = ConnectionState.DISCONNECTED;
{quote}

in this case, you assign the rc code to BookieHandleNotAvailableException. But 
it seems no so suitable, because actually the connect operation succeed and 
bookie is available. I think we need a better rc code here.

besides that, just be curious why you changed log level from DEBUG to INFO for 
connecting message.
                
> TestFencing hung
> ----------------
>
>                 Key: BOOKKEEPER-485
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-485
>             Project: Bookkeeper
>          Issue Type: Bug
>            Reporter: Flavio Junqueira
>            Assignee: Ivan Kelly
>            Priority: Critical
>             Fix For: 4.2.0
>
>         Attachments: 
> 0001-BOOKKEEPER-485-Fix-race-between-PerChannelBookieClie.patch, 
> stack-trace-hung.txt
>
>
> ... while testing BOOKKEEPER-477, but I think they are unrelated.

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