Integrated Application Server (IAS/IWS) Fails To Start With Message CPFC780 RC4

Resolving The Problem

Following is an example of the CPFC780 RC4 error message thrown in the IAS/IWS server job log:

CPFC780  Escape  30  01/25/16  14:42:09.194271  QLWISVR  QSYS  *STMT  QCMD  QSYS  01C8
From module . . . . . . . . :   QLWISVR
From procedure  . . . . . . :   sendEscapeMessage__FPcsi
Statement . . . . . . . . . :   16
Message . . . . :  Failed to start the integrated Web application server. Reason 4.
Cause . . . . . :  An error occurred when starting the integrated web
  application server. The reason code is 4.  
  Reason codes and their meanings follow:
1 - Integrated Web application server version is not valid.
2 - The port 3525 specified in config.properties is already in use.
3 - The file specified for property engine.stderr failed to open. Error: 3525.
4 - The file specified for property engine.stdout failed to open. Error: 3525.
5 - Attempt to change the working directory to bin directory failed. Error: 3525
6 - Attempt to change the working directory to the instance directory failed. Error: 3525 7 - Unknown error: 3525.

To resolve the issue, you will need to delete the console.log and messages.log files in the /www/<server>/wlp/usr/servers/<server>/logs/ directory. After these log files are deleted, you should be able to successfully start the IBM Integrated Application Server (IAS/IWS).

IBM also recommends the /www/<server>/wlp/usr/servers/<server>/jvm.options file be checked to see if the following line exists in the file:

-Dcom.ibm.as400.access.Trace.category=all

If it does exist, you should do the following:

1. Delete the line.
2. Press F3 two times to save and exit.
3. Restart your IAS/IWS server.

This will turn off Toolbox tracing, which can lead to this issue.