After upgrade elk to 7.9.2:
root@log:/# systemctl status kibana
● kibana.service - Kibana
Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2020-09-28 10:06:25 -03; 1h 45min ago
Main PID: 9089 (node)
Tasks: 11 (limit: 4915)
Memory: 1016.2M
CGroup: /system.slice/kibana.service
└─9089 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli
set 28 10:07:54 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:54Z","tags":["warning","plugins","reporting","config"],"pid":9089,"message":"Generating a random key for xpack.reporting.encryptionKey. To prevent sessions fr
set 28 10:07:54 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:54Z","tags":["warning","plugins","encryptedSavedObjects","config"],"pid":9089,"message":"Generating a random key for xpack.encryptedSavedObjects.encryptionKey
set 28 10:07:54 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:54Z","tags":["warning","plugins","ingestManager"],"pid":9089,"message":"Fleet APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral e
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["warning","plugins","actions","actions"],"pid":9089,"message":"APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral enc
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["warning","plugins","alerts","plugins","alerting"],"pid":9089,"message":"APIs are disabled due to the Encrypted Saved Objects plugin using an eph
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["info","plugins","monitoring","monitoring"],"pid":9089,"message":"config sourced from: production cluster"}
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["info","savedobjects-service"],"pid":9089,"message":"Waiting until all Elasticsearch nodes are compatible with Kibana before starting saved objec
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["info","savedobjects-service"],"pid":9089,"message":"Starting saved objects migrations"}
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["warning","plugins","reporting","config"],"pid":9089,"message":"Chromium sandbox provides an additional layer of protection, but is not supported
set 28 10:07:55 log kibana[9089]: {"type":"log","@timestamp":"2020-09-28T13:07:55Z","tags":["warning","savedobjects-service"],"pid":9089,"message":"Unable to connect to Elasticsearch. Error: [search_phase_execution_exception] all shards
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