After getting less-than-desired results trying to upgrade my ELK stack to version 5.0, I thought I'd start fresh, and create a brand new ELK 5.0 node. I have reused some config files (e.g. elasticsearch.yml, kibana.yml, logstash config files) from my older setup. So far, so good. ES, Logstash, and Kibana start OK, and I can access the Kibana Web UI. However, I can't configure an index pattern. For example, the pattern logstash-* returns the dreaded "Unable to fetch mapping. ... ". When I look in /var/lib/elasticsearch/nodes/0/indices, I see idices with names like Lk8wl5UtRASVyldRHspZQg, instead of e.g. logstash-2016.11.08. When I go to http://localhost:9200/_cat/indices, I see the following:
yellow open .monitoring-data-2 s147bGxoQ5WgDgsP4XlECA 1 1 4 0 13.5kb 13.5kb
yellow open .monitoring-es-2-2016.11.08 PcZAvTv8TjmTJgZ6e-rm0Q 1 1 2900 40 2.4mb 2.4mb
yellow open .monitoring-kibana-2-2016.11.08 m1MyHbtXRCiNPdeDr97aZA 1 1 550 0 335kb 335kb
yellow open .kibana Lk8wl5UtRASVyldRHspZQg 1 1 1 0 3.2kb 3.2kb
What happened to my logstash, filebeat, winlogbeat, and topbeat indices?