[jboss-jira] [JBoss JIRA] Resolved: (JGRP-1024) Join and state transfer locks up entire cluster

Join and state transfer locks up entire cluster ----------------------------------------------- Key: JGRP-1024 URL: https://jira.jboss.org/jira/browse/JGRP-1024 Project: JGroups Issue Type: Bug Affects Versions: 2.6.9, 2.6.10, 2.6.11 Reporter: Vladimir Blagojevic Assignee: Vladimir Blagojevic Fix For: 2.6.12, 2.8 When a new node joins a cluster and requests a join-and-state-transfer, coordinator C receives a request and calls a startFlush (CoordGmsImpl.java:400). Call startFlush might fail to due timeout (see FLUSH#startFlush(List<Address> flushParticipants) ). This causes function to return false and a repeat of start flush to be issue by the caller. However, since switch flushInProgress is still true all repeated requests for start flush fail. On the other hand joining node goes into connect loop - it never receives a new view due to a failed flush at coordinator C and it never issues necessary stopFlush that would switch back flushInProgress to false. So coordinator C never comes out of stuck state and client stays in stuck state. The end result is that we have a lockup forever.