Search Query Errors After Upgrade v2.4.7 to v3.3.5

Graylog Central (peer support)
1

After upgrading Graylog from v2.4.7 to v3.3.5 I get the error below in every dashboard widget and search box

“Unable to perform search query: failed to parse date field [2020-09-03 16:50:49.121] with format [strict_date_optional_time||epoch_millis].”

Clearly I have missed something in the upgrade docs! Any help hunting down this problem will be greatly appreciated.
Elasticsearch v6.8.12
Mongod v3.6.19

2

Hello @kenzo-onms, welcome!

I’m not sure if it will solve your issue but you might try rotating the index/indices against which your widgets and searches querying. Are you using any custom index mappings?

3

That worked just fine, I should have tried that earlier.
Thanks Andrew!