While retrieving data for this widget, the following error(s) occurred: Elasticsearch exception

1. Describe your incident:

I’ve just installed a fresh installation of Graylog to be able to receive alerts from Wazuh Manager, via a raw/plaintext TCP input. I’ve connected both instances correctly but I’m receiving these errors, when I try to “Show Received Messages”:

  • OS Information:
    Ubuntu Server 22.04
  • Package Version:
    Graylog v4.3.11+b48cf45

3. What steps have you already taken to try and solve the problem?

I’ve just repeated the same steps above and I also tried to delete the index graylog_0 on Wazuh’s Indexer.

Was able to solve this by editing server.conf and changing the default elastic index prefix name.

Thank you, nevertheless!

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