Hi,
I installed Kibana version 6.2.2 three months back it is up and running and the UI monitoring is also working fine but suddenly UI is not working now. Kibana is running inside the server but can't browse the URL (Kibana UI not responding) Can you please help me to reslove this issuse.
Please find the logs below
log [02:00:20.223] [info][status][plugin:license_management@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:20.440] [info][status][plugin:timelion@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:20.446] [info][status][plugin:graph@6.2.2] Status changed from uninitialized to yellow - Waiting for Elasticsearch
log [02:00:20.457] [info][status][plugin:monitoring@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:21.553] [info][status][plugin:reporting@6.2.2] Status changed from uninitialized to yellow - Waiting for Elasticsearch
log [02:00:21.602] [info][status][plugin:security@6.2.2] Status changed from uninitialized to yellow - Waiting for Elasticsearch
log [02:00:21.603] [warning][security] Session cookies will be transmitted over insecure connections. This is not recommended.
log [02:00:21.675] [info][status][plugin:grokdebugger@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:21.693] [info][status][plugin:dashboard_mode@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:21.699] [info][status][plugin:logstash@6.2.2] Status changed from uninitialized to yellow - Waiting for Elasticsearch
log [02:00:21.751] [info][status][plugin:apm@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:21.767] [info][status][plugin:console@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:21.776] [info][status][plugin:metrics@6.2.2] Status changed from uninitialized to green - Ready
log [02:00:21.791] [info][listening] Server running at http://xx
log [02:00:21.935] [info][status][plugin:elasticsearch@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.961] [info][license][xpack] Imported license information from Elasticsearch for the [data] cluster: mode: gold | status: active | expiry date: 2019-09-30T23:59:59+00:00
log [02:00:21.970] [info][status][plugin:xpack_main@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.970] [info][status][plugin:searchprofiler@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.971] [info][status][plugin:ml@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.971] [info][status][plugin:tilemap@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.973] [info][status][plugin:watcher@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.974] [info][status][plugin:graph@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.975] [info][status][plugin:reporting@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.976] [info][status][plugin:security@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.976] [info][status][plugin:logstash@6.2.2] Status changed from yellow to green - Ready
log [02:00:21.993] [info][kibana-monitoring][monitoring-ui] Starting all Kibana monitoring collectors
log [02:00:27.443] [error][status][plugin:xpack_main@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.445] [error][status][plugin:searchprofiler@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.446] [error][status][plugin:ml@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.447] [error][status][plugin:tilemap@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.448] [error][status][plugin:watcher@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.449] [error][status][plugin:graph@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.449] [error][status][plugin:reporting@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.450] [error][status][plugin:security@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.450] [error][status][plugin:logstash@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:27.451] [info][kibana-monitoring][monitoring-ui] Stopping all Kibana monitoring collectors
log [02:00:27.452] [error][status][plugin:elasticsearch@6.2.2] Status changed from green to red - Request Timeout after 3000ms
log [02:00:51.979] [warning][license][xpack] License information from the X-Pack plugin could not be obtained from Elasticsearch for the [monitoring] cluster. Error: Request Timeout after 30000ms
log [02:00:51.982] [warning][monitoring-ui] X-Pack Monitoring Cluster Alerts will not be available: Error: Request Timeout after 30000ms
log [02:00:52.007] [info][kibana-monitoring][monitoring-ui] Starting all Kibana monitoring collectors
log [02:00:52.015] [info][status][plugin:elasticsearch@6.2.2] Status changed from red to green - Ready
log [02:00:52.048] [info][status][plugin:xpack_main@6.2.2] Status changed from red to green - Ready
log [02:00:52.049] [info][status][plugin:searchprofiler@6.2.2] Status changed from red to green - Ready
log [02:00:52.050] [info][status][plugin:ml@6.2.2] Status changed from red to green - Ready
log [02:00:52.050] [info][status][plugin:tilemap@6.2.2] Status changed from red to green - Ready
log [02:00:52.051] [info][status][plugin:watcher@6.2.2] Status changed from red to green - Ready
log [02:00:52.051] [info][status][plugin:graph@6.2.2] Status changed from red to green - Ready
log [02:00:52.052] [info][status][plugin:reporting@6.2.2] Status changed from red to green - Ready
log [02:00:52.054] [info][status][plugin:security@6.2.2] Status changed from red to green - Ready
log [02:00:52.054] [info][status][plugin:logstash@6.2.2] Status changed from red to green - Ready
log [02:01:22.002] [info][license][xpack] Imported license information from Elasticsearch for the [monitoring] cluster: mode: gold | status: active | expiry date: 2019-09-30T23:59:59+00:00