Setup: Kubernetes cluster with filebeat-7.12.0 -> logstash-7.9. -> elasticsearch-7.9.1 -> kibana-7.9.1 Problem: we lose many logs often and sometimes in a massive way, as in we stop seeing logs from one or more pods (confirmed fact from other logging/alert mechanisms), we don't know where/how. …

Losing logs in ELK

warkolm (Mark Walkom) June 9, 2021, 12:26am 2

devopscanada:

Harvester could not be started on new file: ... Err: error setting up harvester: Harvester setup failed. Unexpected file opening error: file info is not identical with opened file. Aborting harvesting and retrying file later again

These seem pretty relevant.
Can you enable debug on one Filebeat pod and provide more logging?

Filebeat losing logs

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Losing logs in ELK

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