Hello
I upgraded Kibana 8 to 9 (obviously everything else) but it does not load in my browser.
I see this in the logs:
tail -f /data/kibana/logs/kibana.log | jq
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:19.310+01:00",
"message": "Registered task successfully [Task: cloud_security_posture-stats_task]",
"log": {
"level": "INFO",
"logger": "plugins.cloudSecurityPosture"
},
"process": {
"pid": 18043,
"uptime": 21.908523315
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:20.880+01:00",
"message": "{"message":"Creating dashboard index pattern adapter","name":".kibana-siem-dashboard-migrations-migrations","fieldMap":{"name":{"type":"keyword","required":true},"created_at":{"type":"date","required":true},"created_by":{"type":"keyword","required":true}}}",
"log": {
"level": "WARN",
"logger": "plugins.securitySolution.siemDashboardMigrations"
},
"process": {
"pid": 18043,
"uptime": 21.908784443
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:20.880+01:00",
"message": "{"message":"Creating dashboard index pattern adapter","name":".kibana-siem-dashboard-migrations-dashboards","fieldMap":{"@timestamp":{"type":"date","required":false},"migration_id":{"type":"keyword","required":true},"created_by":{"type":"keyword","required":true},"status":{"type":"keyword","required":true},"translation_result":{"type":"keyword","required":true},"updated_at":{"type":"date","required":true},"updated_by":{"type":"keyword","required":true},"original_dashboard":{"type":"object","required":true},"original_dashboard.id":{"type":"keyword","required":true},"original_dashboard.title":{"type":"text","required":true,"fields":{"keyword":{"type":"keyword"}}},"original_dashboard.data":{"type":"text","required":true},"original_dashboard.description":{"type":"text","required":false},"original_dashboard.format":{"type":"keyword","required":true},"original_dashboard.vendor":{"type":"keyword","required":true},"original_dashboard.last_updated":{"type":"date","required":true},"original_dashboard.splunk_properties":{"type":"object","required":true},"original_dashboard.splunk_properties.app":{"type":"keyword","required":true},"original_dashboard.splunk_properties.sharing":{"type":"keyword","required":true},"original_dashboard.splunk_properties.owner":{"type":"keyword","required":true},"elastic_dashboard":{"type":"object","required":false},"elastic_dashboard.id":{"type":"keyword","required":false},"elastic_dashboard.title":{"type":"text","required":true,"fields":{"keyword":{"type":"keyword"}}},"elastic_dashboard.description":{"type":"text","required":false},"elastic_dashboard.data":{"type":"text","required":false},"comments":{"type":"object","array":true,"required":false},"comments.message":{"type":"keyword","required":true},"comments.created_at":{"type":"date","required":true},"comments.created_by":{"type":"keyword","required":true}}}",
"log": {
"level": "WARN",
"logger": "plugins.securitySolution.siemDashboardMigrations"
},
"process": {
"pid": 18043,
"uptime": 21.909081459
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:20.880+01:00",
"message": "{"message":"Creating dashboard index pattern adapter","name":".kibana-siem-dashboard-migrations-resources","fieldMap":{"migration_id":{"type":"keyword","required":true},"type":{"type":"keyword","required":true},"name":{"type":"keyword","required":true},"content":{"type":"text","required":false},"metadata":{"type":"object","required":false},"updated_at":{"type":"date","required":false},"updated_by":{"type":"keyword","required":false}}}",
"log": {
"level": "WARN",
"logger": "plugins.securitySolution.siemDashboardMigrations"
},
"process": {
"pid": 18043,
"uptime": 21.909354801
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:20.983+01:00",
"message": "Registering endpoint:user-artifact-packager task with timeout of [20m], interval of [60s] and policy update batch size of [25]",
"log": {
"level": "INFO",
"logger": "plugins.securitySolution.endpoint:user-artifact-packager:1.0.0"
},
"process": {
"pid": 18043,
"uptime": 21.909647146
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:20.983+01:00",
"message": "Registering task [endpoint:complete-external-response-actions] with timeout of [5m] and run interval of [60s]",
"log": {
"level": "INFO",
"logger": "plugins.securitySolution.endpoint:complete-external-response-actions"
},
"process": {
"pid": 18043,
"uptime": 21.909864354
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
{
"event": {
"action": "kibana_started.elasticsearch.waitTime",
"category": "database",
"duration": 0,
"type": "connection"
},
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:22.365+01:00",
"message": "Successfully connected to Elasticsearch after waiting for 0 milliseconds",
"log": {
"level": "INFO",
"logger": "elasticsearch-service"
},
"process": {
"pid": 18043,
"uptime": 21.910215823
},
"trace": {
"id": "04c4fcf18ba51bc98b7578b931c4eb86"
},
"transaction": {
"id": "e4130e79a39368c5"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:22.450+01:00",
"message": "Waiting until all Elasticsearch nodes are compatible with Kibana before starting saved objects migrations...",
"log": {
"level": "INFO",
"logger": "savedobjects-service"
},
"process": {
"pid": 18043,
"uptime": 21.976142493
},
"span": {
"id": "344f537f73365840"
},
"trace": {
"id": "04c4fcf18ba51bc98b7578b931c4eb86"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:22.451+01:00",
"message": "Starting saved objects migrations",
"log": {
"level": "INFO",
"logger": "savedobjects-service"
},
"process": {
"pid": 18043,
"uptime": 21.976770881
},
"span": {
"id": "344f537f73365840"
},
"trace": {
"id": "04c4fcf18ba51bc98b7578b931c4eb86"
}
}
{
"service": {
"node": {
"roles": [
"background_tasks",
"ui"
]
}
},
"ecs": {
"version": "9.0.0"
},
"@timestamp": "2026-03-20T12:44:23.361+01:00",
"message": "Browser executable: /usr/share/kibana/node_modules/@kbn/screenshotting-plugin/chromium/headless_shell-linux_x64/headless_shell",
"log": {
"level": "INFO",
"logger": "plugins.screenshotting.chromium"
},
"process": {
"pid": 18043,
"uptime": 22.886738854
},
"trace": {
"id": "cfcd44b6c2ba5f6bb2a2ff591a1dad80"
},
"transaction": {
"id": "31825adcd2c4ea68"
}
}
It just gets stuck there.
Besides that:
root@server :/# journalctl -u elasticsearch -f
Mar 20 12:05:37 server systemd[1]: Starting elasticsearch.service - Elasticsearch...
Mar 20 12:05:58 server systemd-entrypoint[686]: WARNING: Unknown module: jdk.internal.vm.ci specified to --add-exports
Mar 20 12:05:58 server systemd-entrypoint[686]: WARNING: Unknown module: org.elasticsearch.entitlement.instrumentationjava.logging specified to --add-exports
Mar 20 12:07:13 server systemd[1]: Started elasticsearch.service - Elasticsearch.
Nothing else seems to be worth noting…
root@server:/# curl -u "elastic:hiddenpassword!" -k ``https://localhost:9200
{
"name" : "server",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "zv7Cp9B3RAWyGHEcDVj1QQ",
"version" : {
"number" : "9.3.1",
"build_flavor" : "default",
"build_type" : "deb",
"build_hash" : "0dd66e52ba3aa076cf498264e46339dbb71f0269",
"build_date" : "2026-02-23T23:37:38.684779921Z",
"build_snapshot" : false,
"lucene_version" : "10.3.2",
"minimum_wire_compatibility_version" : "8.19.0",
"minimum_index_compatibility_version" : "8.0.0"
},
"tagline" : "You Know, for Search"
}
root@server:/#