> On May 8, 2017, 5:44 p.m., Hitesh Khamesra wrote:
> > geode-core/src/main/java/org/apache/geode/distributed/internal/membership/gms/membership/GMSJoinLeave.java
> > Line 830 (original)
> > <https://reviews.apache.org/r/59057/diff/1/?file=1710720#file1710720line836>
> >
> >     I think problem here is, we send shutdown message using Tcp layer. In 
> > that case, "receiver1" gets that shutdown message and pass that info to 
> > membership layer. Then "receiver1" becomes coordinator(legal coordinator) 
> > by removing current coordinator. Now if current coordinator sends new view 
> > then cluster just ignores that view, as cluster has new-view by "receiver1".

Thanks Hitesh.  I agree - I had removed the random number addition to the view 
number in becomeCoordinator last week and couldn't remember why I'd done that 
this morning so I reverted the change.  I'm going to put that back in because 
it makes it so that the prepared view isn't ignored.


- Bruce


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On May 8, 2017, 5:23 p.m., Bruce Schuchardt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/59057/
> -----------------------------------------------------------
> 
> (Updated May 8, 2017, 5:23 p.m.)
> 
> 
> Review request for geode, Galen O'Sullivan, Hitesh Khamesra, and Udo 
> Kohlmeyer.
> 
> 
> Bugs: GEODE-2193
>     https://issues.apache.org/jira/browse/GEODE-2193
> 
> 
> Repository: geode
> 
> 
> Description
> -------
> 
> The previous fix for this ticket introduced a shutdown problem that caused 
> servers to pause waiting for ShutdownMessage to be sent to another server 
> that had already exited.  We reduced the pause time but this change set fixes 
> the problem by transmitting the message over UDP instead of TCP/IP stream 
> sockets.
> 
> Another change in GMSJoinLeave prepareView/sendView allows a membership 
> coordinator that is shutting down to complete the sending out of a new view 
> if it has already prepared the view when shutdown begins.
> 
> 
> Diffs
> -----
> 
>   
> geode-core/src/main/java/org/apache/geode/distributed/internal/membership/gms/membership/GMSJoinLeave.java
>  e0c0ba29a5c74614d2430fb78d972e306a355845 
>   
> geode-core/src/main/java/org/apache/geode/distributed/internal/membership/gms/mgr/GMSMembershipManager.java
>  8ae66d0b6839cfbd46b479d896104f54fd11a68d 
>   geode-core/src/main/java/org/apache/geode/internal/util/PluckStacks.java 
> 357812a6ec0cb09a88fa727a4bf828f18794264d 
> 
> 
> Diff: https://reviews.apache.org/r/59057/diff/2/
> 
> 
> Testing
> -------
> 
> precheckin plus 1000 runs of the test that was hitting this issue at least 4% 
> of the time
> 
> 
> Thanks,
> 
> Bruce Schuchardt
> 
>

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