Setup lifecycle of "monitoring" plugin wasn't completed in 30sec

[rudolf]

The monitoring plugin frequently takes more than 30s to complete which causes Kibana to fail to start up. Plugin's setup lifecycle should not block Kibana from starting up see https://github.com/elastic/kibana/blob/6042a01f385078587e8e09418ef07f69ec2dadf7/rfcs/text/0007_lifecycle_unblocked.md and #53268

Versions where I've seen this behaviour:

• 7.7.0
• 7.9.0
• 7.9.1
• 7.9.2

This is most likely caused by the following line:

kibana/x-pack/plugins/monitoring/server/plugin.ts

Line 122 in a88c272

await this.licenseService.refresh();

Workarounds:

• Disable monitoring with the following kibana.yml setting: monitoring.enabled: false
• Upgrade to 7.9.3
• Provide more resources to Elasticsearch so that GET /_xpack doesn't take longer than 30s to respond

[elasticmachine]

Pinging @elastic/stack-monitoring (Team:Monitoring)