APAR status
Closed as fixed if next.
Error description
When agent was re-started while it was still running and listening on port 31531 then the sessions are exhausted. NodeAgents.sh invokes Agent.sh. Agent.sh has retry logic in it for runtime, to re-start the agent in the event that it exits. In this case, when Agent.sh started the agent, the agent began its initialization process, but when it tried to listen on port 31531, it failed and exited. Agent.sh then tried to start the agent again and this was continuously repeated. Part of the agent initialization process is to invoke attached handlers so that they can perform their own initialization. In this case, the IA handler authenticated, but was never given a chance to shutdown. After enough repeated attempts at starting the agent and invoking the IA handler without proper shutdown, sessions were exhausted. Another possible symptom of this issue is excessive CPU usage by the agent process due to continous retrying. The actual process ID will vary as a new agent process is started when the errant one exits.
Local fix
Make sure agents are shutdown properly.
Problem summary
**************************************************************** USERS AFFECTED: Users that have IA installed and restart the ASB Agent while the port is in use. **************************************************************** PROBLEM DESCRIPTION: When the ASB Agent is started while its port is in use, its initialization fails and an ISF session is leaked from the IA handler. Agent.sh continuously attempts to restart the ASB Agent and eventually all ISF sessions get used up. **************************************************************** RECOMMENDATION: After stopping the agents, or prior to starting the agents, execute the following to check for the ASB Agent process running and/or the ASB Agent port in use: ps -ef | grep AgentImpl netstat -an | grep 31531 The default ASB Agent port is 31531. If a different port was chosen during install, substitute the actual port value for 31531. ****************************************************************
Problem conclusion
Temporary fix
Comments
APAR Information
APAR number
JR43911
Reported component name
WIS INFORM ANAL
Reported component ID
5724Q36IA
Reported release
850
Status
CLOSED FIN
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-08-28
Closed date
2012-11-28
Last modified date
2013-12-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Applicable component levels
R870 PSY
UP
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Document Information
Modified date:
12 October 2021