[jboss-jira] [JBoss JIRA] (JGRP-1659) deadlock in MFC with default configuration

deadlock in MFC with default configuration ------------------------------------------ Key: JGRP-1659 URL: https://issues.jboss.org/browse/JGRP-1659 Project: JGroups Issue Type: Bug Affects Versions: 3.2.7 Reporter: Mircea Markus Assignee: Bela Ban Fix For: 3.4 Attachments: expiration-test.zip MFC.down does the following: {code:java} credits.decrement(length, block_time); //A if(needToSendCreditRequest()) //B sendCreditRequest(tuple.getVal1(), Math.min(max_credits) {code} A blocks forever even if the MFC.max_block_time is configured: {code:xml} <MFC max_credits="200k" min_threshold="0.20" max_block_time="1"/> {code} This happens at the same time on the whole cluster. B never gets invoked, so both wake up conditions( credits received or timeout) for credits.decrement are never satisfied resulting in the whole cluster to freeze.