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KB-5793: AIX hosts in 'down' mode running Centrify DirectControl 5.0.2, stop and restart failed

Centrify DirectControl ,  

12 April,16 at 11:46 AM

Applies to:

Centrify DirectControl version 5.0.2 on AIX
 

Problem:

A few domain controllers were rebooted causing AIX hosts that has Centrify DirectControl 5.0.2 installed showing ‘CentrifyDC mode: down’ status when running ‘adinfo’ command.
  • An attempt to restart adclient failed as OS is showing that the service is already running, however ‘ps –ef |grep –I centrify’ is not showing any adclient running.
  • An attempt to ‘adleave’ and ‘adjoin’ is also failing.  
  • An attempt to run ‘startsrc’ and ‘stopsrc –f’ does not fix the issue.
  • An attempt to run ‘refresh –s centrifydc’ then ‘lssrc –s centrifydc’ does not clear up the issue.
 
Cause:

The adclient daemon will not restart on the AIX host.  The OS thinks adclient is running under PID <pidnumber> eventhough that PID no longer exists. 
auth|security:debug adjoin[26280096]: DEBUG util.except (IO) : ipc socket connect: No such file or directory (reference lrpc/ipcmessage.cpp:444 rc: 1) Aug 17 14:14:55 <hostname> auth|security:debug last message repeated 72

IPC = Inter Process Communication -> This error message says that lrpc/ipcmessage.cpp the C code is attempting to connect to a socket file (an on disk file that allows communication to a running daemon.

‘truss starsrc’ show that centrifydc is already running and ‘truss lssrc’ show the pid number. 

‘stopsrc’ says centrifydc is not there but ‘startsrc’ does not agree.  
 


Workaround:

Not Available.



Resolution:

The resource manager for AIX OS does not sync up with adclient eventhough the OS thinks there is PID <pidnumber> is still running.  At this point a ‘reboot’ on the host is needed.

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