Get a "illegal_argument_exception" error after upgrade

[yeziblo]

Hi, everyone.

I'm trying to upgrade ES from 5.4.0 to 6.8.0.

According to official documents, I execute this method after upgrade:

curl -XPUT -H "Content-Type:application/json" 172.16.1.133:9200/_cluster/settings -d'
{
"persistent": {
"cluster.routing.allocation.enable": null
}
}
'

And I got error:

{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"unknown setting [archived.xpack.security.transport.filter.deny] please check that any required plugins are installed, or check the breaking changes documentation for removed settings"}],"type":"illegal_argument_exception","reason":"unknown setting [archived.xpack.security.transport.filter.deny] please check that any required plugins are installed, or check the breaking changes documentation for removed settings"},"status":400}

How can I solve this problem?

Thanks and regards!

[DavidTurner]

Somewhere along the way, Elasticsearch has failed to recognise your xpack.security.transport.filter.deny setting and has archived it. You must remove any archived settings before you can set any other settings. I think this is a valid setting, as long as you are not using an unusual distribution. Can you share the output of curl http://172.16.1.133:9200/?

To remove an archived setting, set it to null:

curl -XPUT -H "Content-Type:application/json" http://172.16.1.133:9200/_cluster/settings -d'
{
  "persistent": {
    "archived.xpack.security.transport.filter.deny": null
  }
}'

[yeziblo]

it works！
Tnanks and best regards！