Troubleshooting Self-Managed Gateway Logging Issues
When configuring logging for Anypoint Flex Gateway, you might encounter logging issues caused by incorrect directory permissions, and so on. The following topics provide possible causes for logging issues and describe how to troubleshoot:
Logs Do Not Appear in a Third-Party Logging Service
After applying a logging configuration YAML file, logs should begin appearing within a few minutes. If your logs do not appear in your third party logging service:
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Ensure that your third-party service is running.
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If the service is running, check the runtime logs for potential configuration errors.
You can view the runtime logs for both Flex Gateways running in Connected Mode and Local Mode by following the steps in Viewing Standard Output Logs. Additionally, for Flex Gateways running in Connected Mode, you can view runtime logs in Runtime Manager.
Potential configuration errors appear similar to the following:
[flex-gateway-fluent] [2023/09/07 20:17:49] [error] [output:http:http.1] hzk83039.live.dynatrace.com:443, HTTP status=401 [flex-gateway-fluent] {"error":{"code":401,"message":"Missing authorization parameter."}} [flex-gateway-fluent] [2023/09/07 20:17:49] [ warn] [engine] failed to flush chunk '20-1694117863.683606251.flb', retry in 7 seconds: task_id=2, input=emitter_for_rewrite_tag.11 > output=http.1 (out_id=1) -
Whether or not configuration errors appear in the runtime logs, view the /var/tmp/mulesoft/flex-gateway/fluent-bit.conf file to ensure your configuration values are correct.
Logs Do Not Appear when Running in a VM
Log files do not appear after specifying a target log directory in an access log policy. An example log directory might be /var/log.
Cause
Your log output directory might not have write permission.
Solution
To resolve this issue, grant write permission to the output directory.