AE v24.4.2 Some of the FTs fails with message: "Error: 'java.io.IOException Failed to logon child driver for user"

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

java.io.IOException: Failed to logon child driver for user " is occurring with JOBF

The issue happens intermittently and the jobs run successfully after restarting the failed JOBF

Cause

DE178185

The default timeout was not sufficient with higher than desirable probability.

Resolution

A problem was solved whereby the default timeout of 10 seconds used between the main java process of the agent and the user_service_pkg instances was too optimistic in case of overloaded systems, hence this default timeout is now increased to 60 seconds. The user can also override these defaults with command line arguments.

Workaround: If the Unix agent is running at minimum version 24.4.2 HF3, the timeout can be increased manually by starting the agent in the following way (please note that the timeout values must be provided in milliseconds) : 

 
./ucxjlx6 -Dautomic.user_lib.io_timeout=60000 -Dautomic.user_lib.logon_timeout=60000

Update to a fix version listed below or a newer version if available.

Fix version:
Automation.Engine 24.4.3 HF1 - Planned release January 2026