[jboss-jira] [JBoss JIRA] Updated: (JGRP-528) NAKACK: spurious retransmission requests

NAKACK: spurious retransmission requests ----------------------------------------- Key: JGRP-528 URL: http://jira.jboss.com/jira/browse/JGRP-528 Project: JGroups Issue Type: Task Affects Versions: 2.5 Reporter: Bela Ban Assigned To: Bela Ban Priority: Minor Fix For: 2.6 Every now and then, spurious retransmission requests are received: NAKACK.handleXmitReq(): (requester=192.168.5.2:4397, local_addr=192.168.5.2:4393) message 192.168.5.2:4393::600 not found in retransmission table of 192.168.5.2:4393: [650 : 1050 (1100) (size=x, missing=0, highest stability=650)] It turns out that message #600 *was* actually retransmitted correctly, but the retransmission timer was cancelled too late, so that we got 1 or 2 spurious retransmit requests for the same message. This doesn't happen very frequently, and only under heavy load (e.g. 8 nodes, every node sends 5M 5K messages with 500 threads). Note that this issue DOES NOT LEAD TO INCORRECT BEHAVIOR !