[ https://jira.jboss.org/jira/browse/JGRP-828?page=com.atlassian.jira.plugi... ] Bela Ban commented on JGRP-828: ------------------------------- Remove ThreadPool -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

[ https://jira.jboss.org/jira/browse/JGRP-828?page=com.atlassian.jira.plugi... ] Bela Ban commented on JGRP-828: ------------------------------- Hmm, with the introduction of CAS in UNICAST and NAKACK to determine whether the incoming thread should terminate (because there is already another thread processing all incoming messages for a given sender) [https://jira.jboss.org/jira/browse/JGRP-829], removing deadlock detection is problematic. If we have an incoming unicast, which synchronously invokes a method which returns unicast responses, then the lock will be released with eager_lock_release=true, but the CAS will not be set to false before the method returns ! This means that the unicast results will not get processed by the incoming threads which sheperded them up the stack, but by the current processing thread *which is blocked* waiting for the return values ! This only applies to non-OOB messages; OOB messages never acquire the big per-sender lock. However, responses are never tagged as OOB, so the will have to acquire that lock. Needs more study, possible solutions: - Don't support recursive synchronous RPCs - Send responses as OOB - Send down-messages from within an incoming thread on a separate thread (e.g. down-thread-pool) (?) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

[ https://jira.jboss.org/jira/browse/JGRP-828?page=com.atlassian.jira.plugi... ] Bela Ban resolved JGRP-828. --------------------------- Resolution: Done -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira