I'm not sure what caused this, possibly my previous attempt to use logstash, or an index I once tried on metricbeat. I now send beats directly to elasticsearch. I'm using 7.1 for all parts of the ELK stack.
From the Infrastructure screen, if I click "View Metrics" on a host, I get an error in elasticsearch:
"Caused by: java.lang.IllegalArgumentException: Fielddata is disabled on text fields by default. Set fielddata=true on [host.name] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory. Alternatively use a keyword field instead.", "at org.elasticsearch.index.mapper.TextFieldMapper$TextFieldType.fielddataBuilder(TextFieldMapper.java:767) ~[elasticsearch-7.1.0.jar:7.1.0]", "at org.elasticsearch.index.fielddata.IndexFieldDataService.getForField(IndexFieldDataService.java:116) ~[elasticsearch-7.1.0.jar:7.1.0]", ...
Things I've tried
- Deleting all indices
- Deleting all templates
- Query using curl to try and fix the mapping, but cannot form the correct syntax for query
Please let me know other things I can try. This is breaking my metric data visualization, and I'm considering rolling back to 6.7 as I've seen that suggested.