Last updated on JANUARY 04, 2016
Applies to:
Oracle Applications Technology Stack - Version 10.1.2 to 10.1.2.3 [Release 10.1]Oracle Applications Technology Stack - Version 12.0 to 12.1.3 [Release 12.0 to 12.1]
IBM AIX on POWER Systems (64-bit)
Checked for relevance on 07-DEC-2013
Symptoms
In R12 forms socket mode environment, Form server hangs and unable to create new forms sessions. This results in, FRM-92050 error when users are attempting to connect to Oracle Applications. Forms server needs to be bounced to resolve the error temporarily.
ERROR and stack trace
FRM-92050 FAILED TO CONNECT TO THE SERVER
java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
truss output of spinning client processes
naccept(3, 0x2FF17760, 0x2FF17740)
naccept(3, 0x2FF17760, 0x2FF17740) Err#72 ECONNABORTED
kioctl(1, 22528, 0x00000000, 0x00000000) Err#25 ENOTTY
close(3) = 0
kwaitpid(0x2FF17770, -1, 5, 0x00000000, 0x00000000) = 0
kfcntl(3, F_GETFL, 0x00000000) Err#9 EBADF
Attempting to set Non-blocking IO caused
kwrite(2, " A t t e m p t i n g t".., 40) = 40
kwrite(2, " : ", 2) = 2Bad file number
kwrite(2, " B a d f i l e n u m".., 15) = 15
naccept(3, 0x2FF1B760, 0x2FF1B740) Err#72 ECONNABORTED => Error occurred
kioctl(1, 22528, 0x00000000, 0x00000000) Err#19 ENODEV
close(3) = 0 => Socket was closed without exception handling
Changes
Security tool (i.e. WebKeeper or nmap) has been recently configured which pings the forms server to do health check.
For example
nmap is configured and using below command to check forms server port availability.
nmap -p portnumber hostname
nmap -sT -p portnumber hostname
The same error can be reproduced when "Web Keeper" used as a port probing tool as well.
Cause
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