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diff --git a/health/guides/httpcheck/httpcheck_web_service_bad_content.md b/health/guides/httpcheck/httpcheck_web_service_bad_content.md new file mode 100644 index 00000000..0a5961ca --- /dev/null +++ b/health/guides/httpcheck/httpcheck_web_service_bad_content.md @@ -0,0 +1,30 @@ +### Understand the alert + +The Netdata Agent monitors your HTTP endpoints. You can specify endpoints that the agent will monitor in Agent's Go module under `go.d/httpcheck.conf`. You can also specify the expected response pattern. This HTTP endpoint will send in the `response_match` option. If the endpoint's response does not match the `response_match` pattern, then the Agent marks the response as unexpected. + +The Netdata Agent calculates the average ratio of HTTP responses with unexpected content over the last 5 minutes. + +This alert is escalated to warning if the percentage of unexpected content is greater than 10% and then raised to critical if it is greater than 40%. + +### Troubleshoot the alert + +Check the actual response and the expected response. + +1. Try to implement a request with a verbose result: + +``` +curl -v <your_http_endpoint>:<port>/<path> +``` + +2. Compare it with the expected response. + +Check your configuration under `go.d/httpcheck.conf`: + +``` +cd /etc/netdata # Replace this path with your Netdata config directory +sudo ./edit-config go.d/httpcheck.conf +``` + +### Useful resources + +1. [HTTP endpoint monitoring with Netdata](https://learn.netdata.cloud/docs/agent/collectors/go.d.plugin/modules/httpcheck)
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