12 lines
505 B
Markdown
12 lines
505 B
Markdown
## Version 3.x -> 5.0.0-alpha Upgrade FAQs
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### Collector
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### Problem
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There is no information showing in the UI.
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### Cause
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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.
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When service name is registered, ElasticSearch will create this column by default type string, which will lead to an error.
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### Solution
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Clean the data folder in ElasticSearch and restart ElasticSearch, collector and your application under monitoring.
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