U00003399 The Server 'UC4#CP001' rejected an invalid message.

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

This message appears repeatedly in WP logs:

U00003399 The Server 'UC4#CPxxx' rejected an invalid message.

The log of the affected CPxxx shows:

U00009907 Memory view 'Invalid Msg from Agent <Agent_Name>' (Address='0x11ce1d0', Length='134')
          00000000  30303030 30313334 5543343A 676C6F62  >00000134UC4:glob<
          00000010  616C3030 314E4154 20202020 20202020  >al001NAT        <
          00000020  20202020 20202020 20202020 20202020  >                <
          00000030  01084A50 45584543 5F52FE24 00524553  >..JPEXEC_R.$.RES<
          00000040  4B49434B 20303100 00000000 00030000  >KICK 01.........<
          00000050  00180000 009CF325 0D2D8426 0DCD9F26  >.......%.-.&...&<
          00000060  xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx  >..".. <Agent_Nam<
          00000070  xx202020 20202020 20202020 20202020  >e>              <
          00000080  20202020 2020                        >      <

Cause

This appears to happen due to an outdated CP list on a (z/OS) agent.

It is not confirmed whether this happens on other types of Agents.

Resolution

Empty the CP list and restart the Agent.