[jboss-jira] [JBoss JIRA] (JGRP-1751) State transfer: views installed during state transfer are never installed at the state requester

State transfer: views installed during state transfer are never installed at the state requester ------------------------------------------------------------------------------------------------ Key: JGRP-1751 URL: https://issues.jboss.org/browse/JGRP-1751 Project: JGroups Issue Type: Enhancement Reporter: Bela Ban Assignee: Bela Ban Fix For: 3.5 If a state requester requests state and BARRIER drops all messages at the state requester, then a view V dispatched by the coordinator during the state transfer will never be installed at the state requester: * The current view is V1=\{A,B\} * B requests the state from A * A gets a JOIN from C * A mcasts the new view V2=\{A,B,C\}, seqno=6 * A sends back a unicast state response to B including the state and a digest with A:6 (*including* V2) * B receives the unicast state response and installs the state and digest ** B's digest for A is 6 * B receives V2 (A:6), but *drops it as message 6 is already in its digest for A !* --> B will never install V2 ! This applies to all state transfer protocols which use BARRIER (STATE_TRANSFER, STATE, STATE_SOCK).