Version 3.x -> 5.0.0-alpha Upgrade FAQs

Collector

Problem

There is no information showing in the UI.

Cause

In the upgrade from version 3.2.6 to 5.0.0, the existing Elasticsearch indexes are kept, but aren’t compatible with 5.0.0-alpha. When service name is registered, ElasticSearch will create this column by default type string, which will lead to an error.

Solution

Clean the data folder in ElasticSearch and restart ElasticSearch, collector and your application under monitoring.