Encounter a problem of upgrading splunk enterprise 7.3.3 to 8.0.1 please help

[jerjer951109]

splunk failed to add license to stack enterprise, err - stack already has this license, cannot add again

OS: Windows Server 2012 R2
Splunk Enterprise 7.3.3

Anyone know how to solve it? Thanks!

[codebuilder]

The hashing algorithm changed between the versions you referenced. So, you will need to re-enter the pass4SymmKey value in plain text (don't use the previously hashed value) and cycle Splunk. The newer version does not recognize the previous hashed value as valid.

[richgalloway]

Once a license has been applied to a Splunk instance there is no need to re-apply it after upgrading. You can ignore that message.

[jerjer951109]

but the installer.msi is cannot completed yet, then it cannot upgrade

[jerjer951109]

this message is found on C:\Users\Administrator\AppData\Local\Temp\splunk.log..

[jerjer951109]

this message is found on C:\Users\Administrator\AppData\Local\Temp\splunk.log

[jerjer951109]

but the installer.msi is cannot completed yet, then it cannot upgrade how to solve it