I can add the logs of kibana boot:
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["info","plugins-service"],"pid":985,"message":"Plugin \"metricsEntities\" is disabled."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["info","http","server","Preboot"],"pid":985,"message":"http server running at http://0.0.0.0:5601"}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","config","deprecation"],"pid":985,"message":"\"logging.dest\" has been deprecated and will be removed in 8.0. To set the destination moving forward, you can use the \"console\" appender in your logging configuration or define a custom one."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","config","deprecation"],"pid":985,"message":"Starting in 8.0, the Kibana logging format will be changing. This may affect you if you are doing any special handling of your Kibana logs, such as ingesting logs into Elasticsearch for further analysis. If you are using the new lo
gging configuration, you are already receiving logs in both old and new formats, and the old format will simply be going away. If you are not yet using the new logging configuration, the log format will change upon upgrade to 8.0. Beginning in 8.0, the format of JSON logs will be ECS-compatible JSON, and the default pattern log format will be conf
igurable with our new logging system. Please refer to the documentation for more information about the new logging format."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","config","deprecation"],"pid":985,"message":"User sessions will automatically time out after 8 hours of inactivity starting in 8.0. Override this value to change the timeout."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","config","deprecation"],"pid":985,"message":"Users are automatically required to log in again after 30 days starting in 8.0. Override this value to change the timeout."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["info","plugins-system","standard"],"pid":985,"message":"Setting up [113] plugins: [translations,licensing,globalSearch,globalSearchProviders,features,licenseApiGuard,code,usageCollection,xpackLegacy,taskManager,telemetryCollectionManager,telemetryCollectionXpack,kibanaUsageCollection,
share,embeddable,uiActionsEnhanced,screenshotMode,banners,telemetry,newsfeed,mapsEms,mapsLegacy,kibanaLegacy,fieldFormats,expressions,dataViews,charts,esUiShared,bfetch,data,savedObjects,presentationUtil,expressionShape,expressionRevealImage,expressionRepeatImage,expressionMetric,expressionImage,customIntegrations,home,searchprofiler,painlessLab,g
rokdebugger,management,watcher,licenseManagement,advancedSettings,spaces,security,savedObjectsTagging,reporting,canvas,lists,ingestPipelines,fileUpload,encryptedSavedObjects,dataEnhanced,cloud,snapshotRestore,eventLog,actions,alerting,triggersActionsUi,transform,stackAlerts,ruleRegistry,visualizations,visTypeXy,visTypeVislib,visTypeVega,visTypeTim
elion,visTypeTagcloud,visTypeTable,visTypePie,visTypeMetric,visTypeMarkdown,tileMap,regionMap,expressionTagcloud,expressionMetricVis,console,graph,fleet,indexManagement,remoteClusters,crossClusterReplication,indexLifecycleManagement,dashboard,maps,dashboardMode,dashboardEnhanced,visualize,visTypeTimeseries,rollup,indexPatternFieldEditor,lens,cases
,timelines,discover,osquery,observability,discoverEnhanced,dataVisualizer,ml,uptime,securitySolution,infra,upgradeAssistant,monitoring,logstash,enterpriseSearch,apm,savedObjectsManagement,indexPatternManagement]"}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["info","plugins","taskManager"],"pid":985,"message":"TaskManager is identified by the Kibana UUID: 66be578a-8951-4c9a-a95d-e2eef9668b68"}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","security","config"],"pid":985,"message":"Generating a random key for xpack.security.encryptionKey. To prevent sessions from being invalidated on restart, please set xpack.security.encryptionKey in the kibana.yml or use the bin/kibana-encryption-keys command."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","security","config"],"pid":985,"message":"Session cookies will be transmitted over insecure connections. This is not recommended."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","security","config"],"pid":985,"message":"Generating a random key for xpack.security.encryptionKey. To prevent sessions from being invalidated on restart, please set xpack.security.encryptionKey in the kibana.yml or use the bin/kibana-encryption-keys command."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","security","config"],"pid":985,"message":"Session cookies will be transmitted over insecure connections. This is not recommended."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","reporting","config"],"pid":985,"message":"Generating a random key for xpack.reporting.encryptionKey. To prevent sessions from being invalidated on restart, please set xpack.reporting.encryptionKey in the kibana.yml or use the bin/kibana-encryption-keys command."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","encryptedSavedObjects"],"pid":985,"message":"Saved objects encryption key is not set. This will severely limit Kibana functionality. Please set xpack.encryptedSavedObjects.encryptionKey in the kibana.yml or use the bin/kibana-encryption-keys command."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","actions"],"pid":985,"message":"APIs are disabled because the Encrypted Saved Objects plugin is missing encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in the kibana.yml or use the bin/kibana-encryption-keys command."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["warning","plugins","alerting"],"pid":985,"message":"APIs are disabled because the Encrypted Saved Objects plugin is missing encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in the kibana.yml or use the bin/kibana-encryption-keys command."}
{"type":"log","@timestamp":"2022-05-19T08:33:21+00:00","tags":["info","plugins","ruleRegistry"],"pid":985,"message":"Installing common resources shared between all indices"}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","plugins","reporting","config"],"pid":985,"message":"Chromium sandbox provides an additional layer of protection, and is supported for Linux Amazon Linux 2 (Karoo) OS. Automatically enabling Chromium sandbox."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"Waiting until all Elasticsearch nodes are compatible with Kibana before starting saved objects migrations..."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"Starting saved objects migrations"}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] INIT -> WAIT_FOR_YELLOW_SOURCE. took: 15ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] INIT -> OUTDATED_DOCUMENTS_SEARCH_OPEN_PIT. took: 14ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] WAIT_FOR_YELLOW_SOURCE -> CHECK_UNKNOWN_DOCUMENTS. took: 5ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] OUTDATED_DOCUMENTS_SEARCH_OPEN_PIT -> OUTDATED_DOCUMENTS_SEARCH_READ. took: 5ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] CHECK_UNKNOWN_DOCUMENTS -> SET_SOURCE_WRITE_BLOCK. took: 7ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] OUTDATED_DOCUMENTS_SEARCH_READ -> OUTDATED_DOCUMENTS_SEARCH_CLOSE_PIT. took: 12ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] OUTDATED_DOCUMENTS_SEARCH_CLOSE_PIT -> UPDATE_TARGET_MAPPINGS. took: 7ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS_WAIT_FOR_TASK. took: 58ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] SET_SOURCE_WRITE_BLOCK -> CALCULATE_EXCLUDE_FILTERS. took: 103ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] CALCULATE_EXCLUDE_FILTERS -> CREATE_REINDEX_TEMP. took: 6ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] UPDATE_TARGET_MAPPINGS_WAIT_FOR_TASK -> DONE. took: 107ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana_task_manager] Migration completed after 203ms"}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] CREATE_REINDEX_TEMP -> REINDEX_SOURCE_TO_TEMP_OPEN_PIT. took: 122ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_OPEN_PIT -> REINDEX_SOURCE_TO_TEMP_READ. took: 4ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Starting to process 4021 documents."}
{"type":"log","@timestamp":"2022-05-19T08:33:22+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_READ -> REINDEX_SOURCE_TO_TEMP_TRANSFORM. took: 209ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:23+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_TRANSFORM -> REINDEX_SOURCE_TO_TEMP_INDEX_BULK. took: 162ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_INDEX_BULK -> REINDEX_SOURCE_TO_TEMP_READ. took: 1225ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Processed 1000 documents out of 4021."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_READ -> REINDEX_SOURCE_TO_TEMP_TRANSFORM. took: 43ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_TRANSFORM -> REINDEX_SOURCE_TO_TEMP_INDEX_BULK. took: 116ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_INDEX_BULK -> REINDEX_SOURCE_TO_TEMP_READ. took: 128ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Processed 2000 documents out of 4021."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_READ -> REINDEX_SOURCE_TO_TEMP_TRANSFORM. took: 93ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_TRANSFORM -> REINDEX_SOURCE_TO_TEMP_INDEX_BULK. took: 58ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_INDEX_BULK -> REINDEX_SOURCE_TO_TEMP_READ. took: 113ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Processed 3000 documents out of 4021."}
{"type":"log","@timestamp":"2022-05-19T08:33:24+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_READ -> REINDEX_SOURCE_TO_TEMP_TRANSFORM. took: 50ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_TRANSFORM -> REINDEX_SOURCE_TO_TEMP_INDEX_BULK. took: 76ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_INDEX_BULK -> REINDEX_SOURCE_TO_TEMP_READ. took: 277ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Processed 4000 documents out of 4021."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_READ -> REINDEX_SOURCE_TO_TEMP_TRANSFORM. took: 5ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_TRANSFORM -> REINDEX_SOURCE_TO_TEMP_INDEX_BULK. took: 3ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_INDEX_BULK -> REINDEX_SOURCE_TO_TEMP_READ. took: 54ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Processed 4021 documents out of 4021."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_READ -> REINDEX_SOURCE_TO_TEMP_CLOSE_PIT. took: 107ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REINDEX_SOURCE_TO_TEMP_CLOSE_PIT -> SET_TEMP_WRITE_BLOCK. took: 3ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] SET_TEMP_WRITE_BLOCK -> CLONE_TEMP_TO_TARGET. took: 50ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] CLONE_TEMP_TO_TARGET -> REFRESH_TARGET. took: 9ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] REFRESH_TARGET -> OUTDATED_DOCUMENTS_SEARCH_OPEN_PIT. took: 5ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] OUTDATED_DOCUMENTS_SEARCH_OPEN_PIT -> OUTDATED_DOCUMENTS_SEARCH_READ. took: 3ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] OUTDATED_DOCUMENTS_SEARCH_READ -> OUTDATED_DOCUMENTS_SEARCH_CLOSE_PIT. took: 11ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] OUTDATED_DOCUMENTS_SEARCH_CLOSE_PIT -> UPDATE_TARGET_MAPPINGS. took: 3ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:25+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS_WAIT_FOR_TASK. took: 171ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:26+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] UPDATE_TARGET_MAPPINGS_WAIT_FOR_TASK -> MARK_VERSION_INDEX_READY. took: 406ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:26+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] MARK_VERSION_INDEX_READY -> DONE. took: 49ms."}
{"type":"log","@timestamp":"2022-05-19T08:33:26+00:00","tags":["info","savedobjects-service"],"pid":985,"message":"[.kibana] Migration completed after 3692ms"}
{"type":"log","@timestamp":"2022-05-19T08:33:26+00:00","tags":["info","plugins-system","standard"],"pid":985,"message":"Starting [113] plugins: [translations,licensing,globalSearch,globalSearchProviders,features,licenseApiGuard,code,usageCollection,xpackLegacy,taskManager,telemetryCollectionManager,telemetryCollectionXpack,kibanaUsageCollection,sh
are,embeddable,uiActionsEnhanced,screenshotMode,banners,telemetry,newsfeed,mapsEms,mapsLegacy,kibanaLegacy,fieldFormats,expressions,dataViews,charts,esUiShared,bfetch,data,savedObjects,presentationUtil,expressionShape,expressionRevealImage,expressionRepeatImage,expressionMetric,expressionImage,customIntegrations,home,searchprofiler,painlessLab,gro
kdebugger,management,watcher,licenseManagement,advancedSettings,spaces,security,savedObjectsTagging,reporting,canvas,lists,ingestPipelines,fileUpload,encryptedSavedObjects,dataEnhanced,cloud,snapshotRestore,eventLog,actions,alerting,triggersActionsUi,transform,stackAlerts,ruleRegistry,visualizations,visTypeXy,visTypeVislib,visTypeVega,visTypeTimel
ion,visTypeTagcloud,visTypeTable,visTypePie,visTypeMetric,visTypeMarkdown,tileMap,regionMap,expressionTagcloud,expressionMetricVis,console,graph,fleet,indexManagement,remoteClusters,crossClusterReplication,indexLifecycleManagement,dashboard,maps,dashboardMode,dashboardEnhanced,visualize,visTypeTimeseries,rollup,indexPatternFieldEditor,lens,cases,t
imelines,discover,osquery,observability,discoverEnhanced,dataVisualizer,ml,uptime,securitySolution,infra,upgradeAssistant,monitoring,logstash,enterpriseSearch,apm,savedObjectsManagement,indexPatternManagement]"}
{"type":"log","@timestamp":"2022-05-19T08:33:27+00:00","tags":["info","plugins","monitoring","monitoring"],"pid":985,"message":"config sourced from: production cluster"}
{"type":"log","@timestamp":"2022-05-19T08:33:28+00:00","tags":["info","http","server","Kibana"],"pid":985,"message":"http server running at http://0.0.0.0:5601"}
{"type":"log","@timestamp":"2022-05-19T08:33:28+00:00","tags":["info","status"],"pid":985,"message":"Kibana is now degraded"}
{"type":"log","@timestamp":"2022-05-19T08:33:28+00:00","tags":["info","plugins","monitoring","monitoring","kibana-monitoring"],"pid":985,"message":"Starting monitoring stats collection"}
{"type":"log","@timestamp":"2022-05-19T08:33:28+00:00","tags":["info","plugins","ruleRegistry"],"pid":985,"message":"Installed common resources shared between all indices"}
{"type":"log","@timestamp":"2022-05-19T08:33:28+00:00","tags":["info","plugins","ruleRegistry"],"pid":985,"message":"Installing resources for index .alerts-observability.uptime.alerts"}
{"type":"log","@timestamp":"2022-05-19T08:33:28+00:00","tags":["info","plugins","ruleRegistry"],"pid":985,"message":"Installing resources for index .alerts-obser
(I don't see any saved object migration problem)