Active KVStore version upgrade precheck FAILED

[Elbald97]

Hi I need help

I have just updated my indexer cluster composed of 4 windows 2022 servers, to the new version of Splunk 9.4.0.
As always I follow the update procedure, but this time one of my 4 servers refuses to update, it makes a rollback each time.

I check the installations failed logs and noticed that the KVstrore was failing to update!

Can anyone help me fix this problem?

Thanks for your help.

[isoutamo]

You must always read this https://docs.splunk.com/Documentation/Splunk/9.4.0/Installation/AboutupgradingREADTHISFIRST before update. Check what it said and warning also check those links too to ensure that you have ready for update before you start.  Always start with test environment and never update your production to double donuts (x.0.0) version, neither donuts (x.y.0) version too.

You should also join in splunk UG Slack and its https://splunk-usergroups.slack.com/archives/C03M9ENE6AD channel (upgrade 9 issues). There are lot of issues what admins have found on their lab environments.

[SanjayReddy]

hi @Elbald97 

In 9.4.0 KV store has been upgarded from 4.2 to 7.x, as this is a major change for KV store

as per your deatils upgrade is not working in Indexers.

try following link for preupgrade checks for  KV store upgarde 
https://docs.splunk.com/Documentation/Splunk/9.4.0/Admin/MigrateKVstore#Prerequisites

if these are indexers , KV store is not needed on them. you can disable using following on  indexers  server.conf 

[kvstore]
disabled=true 

to aviod kv store upgarde aslong with Splunk 9.4.0 upgarde 

kindly set kvstoreUpgradeOnStartupEnabled=false 

post splunk upgarde you can upgarde KV store 

if these are searchheads then do not disable KV store

kindly refer to following documentation for mor details 

https://docs.splunk.com/Documentation/Splunk/9.4.0/Admin/MigrateKVstore 

https://docs.splunk.com/Documentation/Splunk/9.4.0/Installation/AboutupgradingREADTHISFIRST#Key_poin... 

[Elbald97]

I didn't know you had to disable kvstore on indexers.
It works, I was able to update my server.
Thanks.

[isoutamo]

You should always disable any unnecessary components like kvstore where it’s don’t needed. See https://docs.splunk.com/Documentation/Splunk/9.4.0/Security/DisableunnecessarySplunkcomponents