Filebeat: Error on FD

Elastic Stack Beats
1

We recently started using filebeat and its on latest version 6.6
After initiating filebeat daemon process, we are able to push messages to kafka topics
Also we started seeing some errors around the metric data in the logs
ERROR instance/metrics_file_descriptors.go:39 Error while retrieving FD information: error getting number of open FD: key not found

Any idea what all things I should be considered to debug further?
How to ensure such errors doesnt occur again in future?

2

What OS are you running your Filebeat instance on?

It seems like Filebeat is not able to query the OS for FD information.

3

We are using rhel7 based linux system.

4

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