Fully synced Jenkins HA


is there way to setup a Fully sync HA for Jenkins?

i have setup 2 jenkins conteollors and mounted whole /var/lib/jenkins to nfs (both jenkins using same folder). also i have script run every min to sysnc/reload on standby jenkins

follwoing info able to sync

  • Jobs
  • User login

but i have issue with anget Credentials, which is not sync to standby Jenkins.
i would like to know where ’ Credentials’ store?