Applications Manager's master does not start after a change to IP address

Products

• CA Automic Applications Manager (AM)

Issue/Introduction

Error Message :
ErrorMsg: AwE-5107 awcomm connection error (12/01/18 12:00 PM)
Details: 123.456.789:2136
java.net.ConnectException: Connection timed out (Connection timed out)

Applications Manager fails to start up after the hostname's IP resolution changed to a different IP address.

The hostname being used remains the same. After running awinstall option 1 and starting Applications Manager processes, awapi fails to start with the RmiServer.log showing the following error:

ErrorMsg: AwE-5107 awcomm connection error (12/01/18 12:00 PM)
Details: 123.456.789:2136
java.net.ConnectException: Connection timed out (Connection timed out)
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at java.net.Socket.connect(Socket.java:538)
    at java.net.Socket.<init>(Socket.java:434)
    at java.net.Socket.<init>(Socket.java:211)
    at com.appworx.shared.code.server.AwComm.A(AwComm.java:115)
    at com.appworx.server.data.MasterSocketManager.G(MasterSocketManager.java:125)
    at com.appworx.server.data.MasterSocketManager.<init>(MasterSocketManager.java:88)
    at com.appworx.server.data.Master.B(Master.java:672)
    at com.appworx.server.data.Master.<init>(Master.java:209)
    at com.appworx.server.data.AxRmiServer.Ł(AxRmiServer.java:3011)
    at com.appworx.server.data.AxRmiServer.setupMasters(AxRmiServer.java:2864)
    at com.appworx.server.data.AxRmiServer.main(AxRmiServer.java:916)

Environment

Release: AAMOS499000-8.0-Automic Applications Manager-OS400 Agent
Component:

Cause

Cause type:
Other
Root Cause: Old IP address data is saved in an unknown location and is still under investigation.

Resolution

N/A

Fix Status: No Fix

Additional Information

Workaround :
Run awinstall option 1 and change the hostname to the true IP address and make sure processes start up successfully.

Run awinstall option 1 once more and change the IP address back to the hostname. This is only required if the hostname is required over the IP address.