JCP : Log contains "Memory dump 'Unauthenticated message from <number>

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

Following to an upgrade of the engine to 12.3.1 following error  messages can be found in the java communication process log file:

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CP_srv_log_004_00.txt:20200209/090322.386 - 32     U00009907 Memory dump 'Unauthenticated message from 36' (Address='n/a', Length='000003')
CP_srv_log_004_00.txt:20200209/090322.386 - 32               00000000  090144                               >..D<
CP_srv_log_004_00.txt:20200209/090322.394 - 32     U00003489 Server 'UC4P#WP005' logged on (Client connection='36').

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In the WP logfile following messages can be found for teh same period:

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17 - 20200208/213310.484 - U00003389 Server 'UC4P#WP017' has changed its mode from 'WP' to 'DWP'.
16 - 20200208/213316.290 - U00003389 Server 'UC4P#WP016' has changed its mode from 'WP' to 'DWP'.
18 - 20200208/213316.509 - U00003389 Server 'UC4P#WP018' has changed its mode from 'WP' to 'DWP'.

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No defect is present in the application.

Environment

AUTOMATION ENGINE : 12.3

 

Cause

A behavior has been improved where a timing condition could've lead to the message "Memory dump 'Unauthenticated message from ..." in the log file of a JCP.
This could happen if a WP logged on to CP and changed its mode (for example WP to DWP) at the same time.

Resolution

This is a bug corrected in 12.3.3 of the Automation Engine. Upgrade to this service pack or to a more recent to have the probem fixed.