DX Netops Portal upgrade fails with InvocationTargetException

Products

• Network Observability
• CA Performance Management

Issue/Introduction

ERROR:

 [------------------|------------------|------------------|-----------------Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)

Stack Trace:
java.lang.NullPointerException: Cannot invoke "java.io.OutputStream.write(byte[])" because "this.a1" is null
        at Flexeraaw7.aw(Unknown Source)
        at com.zerog.ia.installer.Installer.install(Unknown Source)
        at com.zerog.ia.installer.LifeCycleManager.consoleInstallMain(Unknown Source)
        at com.zerog.ia.installer.LifeCycleManager.executeApplication(Unknown Source)
        at com.zerog.ia.installer.Main.main(Unknown Source)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.base/java.lang.reflect.Method.invoke(Unknown Source)
        at com.zerog.lax.LAX.launch(Unknown Source)
        at com.zerog.lax.LAX.main(Unknown Source)
This Application has Unexpectedly Quit: Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)

Environment

Upgrading to DX Netops Performance Management 23.3.13

Cause

/tmp directory too small

Resolution

Use alternate /tmp dir with enough space:

export IATEMPDIR=/path/to/tmp
Re-execute the portal installer in the same session.