JR35568: AGENT SEEMS HUNG, APPLICATION REPORTS "AGENT NOT AVAILABLE"

APAR status

• Closed as program error.

Error description

• agent process seems to be running fine, however applications
  cannot connect. return message "agent not available"
  

Local fix

• *  Add the following lines to the Agent.sh prior to the
  point where RunAgent is called.  The changes would look like
  this (bold lines are the new lines):
  
  AIXTHREAD_SCOPE=S
  export AIXTHREAD_SCOPE
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  ISD users on AIX.
  ****************************************************************
  PROBLEM DESCRIPTION:
  The ASBAgent can become unresponsive for no apparent reason.
  Requests will usually recieve an error such as "No Agents are
  available to handle the request." even though the ASBAgent
  process is running. Executing the command "netstat -an | grep
  31531" on the computer where the ASBAgent is running will show
  a number of sockets in a CLOSE_WAIT state.
  ****************************************************************
  RECOMMENDATION:
  Install 8.1 Rollup Patch 1.
  ****************************************************************
  

Problem conclusion

• On AIX, the ASBAgent process uses an application called
  RunAgent to wrap the java code. In doing so it does not ensure
  that the AIXTHREAD_SCOPE environment variable is set to the
  value "S". Without this setting, low level threads can become
  deadlocked and cause the ASBAgent process to become
  unresponsive.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• SERVER
  

Fix information

• Fixed component name

  WIS DATASTAGE

• Fixed component ID

  5724Q36DS

Applicable component levels

• R810 PSN

     UP