Discover: unknown error, SearchError: unknown error

Elastic Stack Kibana
1

Hi,

Kibana is throwing this error for all queries:

SearchError: unknown error
    at http://my-dev-elk:5601/bundles/kibana.bundle.js:2:520531
    at processQueue (http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:199687)
    at http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:200650
    at Scope.$digest (http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:210412)
    at Scope.$apply (http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:213219)
    at done (http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:132717)
    at completeRequest (http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:136329)
    at XMLHttpRequest.requestError (http://my-dev-elk:5601/built_assets/dlls/vendors.bundle.dll.js:293:135346)

It is my dev instance which i use for testing. So it is not heavily loaded.

There are no errors in elasticsearch logs. In browser dev tools i get this error repeatedly:

Failed to load resource: net::ERR_CONNECTION_TIMED_OUT

Deleting .kibana index didn't fix the issue.

Kibana logs have this:

{"type":"response","@timestamp":"2019-08-13T09:03:41Z","tags":[],"pid":1,"method":"get","statusCode":304,"req":{"url":"/built_assets/css/plugins/console/index.light.css","method":"get","headers":{"host":"my-dev-elk:5601","connection":"keep-alive","user-agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36","accept":"text/css,*/*;q=0.1","referer":"http://my-dev-elk:5601/app/kibana","accept-encoding":"gzip, deflate","accept-language":"en-GB,en;q=0.9,en-US;q=0.8,kn;q=0.7","if-none-match":"\"92fe860098ef8b025e3578b38fbb0ffc82309dcd-/-gzip\""},"remoteAddress":"10.76.81.65","userAgent":"10.76.81.65","referer":"http://my-dev-elk:5601/app/kibana"},"res":{"statusCode":304,"responseTime":5,"contentLength":9},"message":"GET /built_assets/css/plugins/console/index.light.css 304 5ms - 9.0B"}

Thanks,

2

The queries on other index pattern get's executed properly though. Only difference between the both is the failing queries were made on index which has some nested fields. (Although i don't know how is it related). I query on the index with nested fields immediately after introducing nested fields (ie less data) but after the data has grown overnight i started getting above described error when i try to query that index (size has now grown to 2.6G, i don't think this is the cause either)

I can't think of how nested fields could cause this because if there was some error, i was expecting them in elasticsearch. but elasticsearch log doesn't throw any error

3

Am I understanding correctly that Kibana loads just fine, but when you attempt a search, you get that error? Or is Kibana failing to load completely?

Are there any other logs on the Kibana server?

4

Yes, kibana loads properly but attempt to search throws that error. I have pasted the kibana log in my first post.

5

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