[jgroups-dev] NAKACK.max_xmit_buf_size

In NAKACK, we can limit the size of the retransmission buffer with 
max_xmit_buf_size. If set, we trash the oldest N messages when 
max_xmit_buf_size is exceeded.

I never really liked this feature, because it (a) introduced gaps in the 
message sequence (in other words, lost messages) and (b) in the worst 
case, a receiver could go into an endless retransmission loop, because 
we don't have a way of telling a receiver that a message for which he 
asked for retransmission, can't be furnished because it has already been 
deleted.

So I think I'm going to remove max_xmit_buf_size from NAKACK.

Any objections ?

[1] https://jira.jboss.org/browse/JGRP-1256


-- 
Bela Ban
Lead JGroups / Clustering Team
JBoss

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