Logstash sends exception with stacktraces to Elasticsearch and this results sometimes to this warning:
The length of text to be analyzed for highlighting [20567] exceeded the allowed maximum of [10000] set for the next major Elastic version. For large texts, indexing with offsets or term vectors is recommended!
I would like to know what I can do about this. I took at look at index_options and adjusted the logstash template so that the message field has index_options set to docs. Does this make sense? It did not help. The warning is still there.
Also, how can I find out what data it refers to. I have several clients and it could be anyone. Is there a way to find out without checking every clients Logstash log?