KB Article #176643
system busy, retry later
Problem
-- When trying to access Gateway though Navigator or command line, the following error occurs:system busy, retry laterResolution
* This happens when a .pmq file (from [Gateway_Home]/run_time/data/) became full.* Usually this is the tracker.pmq fill (which is the buffer file for Sentinel event) which became full because Sentinel server is not available. In this case, before having this message, that's possible to see some warning in Gateway logs:
20141204 115543 064 SUP W SUSSCHED '/home/axway/synchrony46/Gateway/run_time/data/tracker.pmq' 50 % full, transfer scheduling suspended 20141204 115544 066 SUP W REFUCONN '/home/axway/synchrony46/Gateway/run_time/data/tracker.pmq' 60 % full, new connections will be refused 20141204 115546 068 SUP W REFUXFER '/home/axway/synchrony46/Gateway/run_time/data/tracker.pmq' 70 % full, new transfers will be refused 20141204 115547 070 SUP W REFUUSER '/home/axway/synchrony46/Gateway/run_time/data/tracker.pmq' 80 % full, new users will be refused* Those warning depends of the sentinel_congestion_strategy parameter (you can refer to [Gateway_Home]/run_time/etc/qtracker.txt file for more information on it). If this parameter is set to 2, message 'system busy, retry later' won't appear if tracker.pmq is full.
* Less often, this happen because another .pmq file is full (see https://support.axway.com/kb/161327/language/en for example), in this case, check for Gateway logs to know which file make the problem occurring. As last solution (will make some information to be lost), stop Gateway, remove the faulty .pmq file and restart Gateway.