GMS: join and immediate leave of coordinator doesn't install new view --------------------------------------------------------------------- Key: JGRP-1724 URL: https://issues.jboss.org/browse/JGRP-1724 Project: JGroups Issue Type: Bug Reporter: Bela Ban Assignee: Bela Ban Fix For: 3.4.1, 3.5 When we have coord A and B, the following can happen: * A joins: view=A|0 * B joins: view=A|1 * A leaves, view B|2 should be multicast by A to B --> B|2 is never received by B. B has to wait until failure detection detects that A is absent and installs a new view --> This is not incorrect, but takes more time than A installing the last view B|2 before it leaves The reason is that CoordGmsImpl.leave() sets {{leaving}} to true, which changes the impl from CoordGmsImpl to ClientGmsImpl. However, the latter doesn't handle the LEAVE request. SOLUTION: * Instead of using field {{leaving}}, use a (stack-based) variable {{is_leaving}} in handleMembershipChange().