Kibana Discover tab is not loading

Elastic Stack Kibana
1

In our dev environment kibana discover is not loading. All the other tabs are working fine. Any solutions? we have tried different time ranges.

2

What are you seeing? Can you show an image?
Have you checked the browsers developer console to see what is happening?

3

FA2235C6.PNG1593×763 94.9 KB

We are getting a white screen with following error in the console.

4

Can you check the ES logs at the same time to see if there is anything? (there should be)

5

What version of Elasticsearch and Kibana are you using?

6

Elasticsearch - 2.3.4
Kibana - 4.5.2

7

ES log error:
[action.admin.indices.mapping.put] [devdata-0] failed to put mappings on indices [[.kibana]], type [search]
java.lang.IllegalArgumentException: mapper [hits] cannot be changed from type [long] to [int]
at org.elasticsearch.index.mapper.MappedFieldType.checkTypeName(MappedFieldType.java:234)
at org.elasticsearch.index.mapper.MappedFieldType.checkCompatibility(MappedFieldType.java:246)
at org.elasticsearch.index.mapper.core.NumberFieldMapper$NumberFieldType.checkCompatibility(NumberFieldMapper.java:146)
at org.elasticsearch.index.mapper.FieldTypeLookup.checkCompatibility(FieldTypeLookup.java:151)
at org.elasticsearch.index.mapper.FieldTypeLookup.copyAndAddAll(FieldTypeLookup.java:115)
at org.elasticsearch.index.mapper.MapperService.merge(MapperService.java:340)
at org.elasticsearch.index.mapper.MapperService.merge(MapperService.java:289)
at org.elasticsearch.cluster.metadata.MetaDataMappingService$PutMappingExecutor.applyRequest(MetaDataMappingService.java:303)
at org.elasticsearch.cluster.metadata.MetaDataMappingService$PutMappingExecutor.execute(MetaDataMappingService.java:230)
at org.elasticsearch.cluster.service.InternalClusterService.runTasksForExecutor(InternalClusterService.java:468)
at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:772)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:231)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

8

Started getting Disover after deleting .kibana index from elasticsearch.
Not sure how it works though. Also not sure the reason for not loading the discover page.

Also get a backup of your dashboards too since after deleting .kibana index all will be removed.