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| -rw-r--r-- | middleware/metrics/README.md | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/middleware/metrics/README.md b/middleware/metrics/README.md index 919050e7b..031602056 100644 --- a/middleware/metrics/README.md +++ b/middleware/metrics/README.md @@ -1,6 +1,7 @@ # prometheus -This module enables prometheus metrics for CoreDNS. +This module enables prometheus metrics for CoreDNS. The default location for the metrics is +`localhost:9135`. The metrics path is fixed to `/metrics`. The following metrics are exported: @@ -9,13 +10,13 @@ The following metrics are exported: * coredns_dns_response_size_bytes * coredns_dns_response_rcode_count_total -Each counter has a label `zone` which is the zonename used for the request/response, -and a label `qtype` which old the query type. -The `response_rcode_count_total` has an extra label `rcode` which holds the rcode -of the response. +Each counter has a label `zone` which is the zonename used for the request/response. and a label +`qtype` which old the query type. The `dns_request_count_total` has an extra label `proto` which +holds the transport of the response ("udp" or "tcp"). The `response_rcode_count_total` has an extra +label `rcode` which holds the rcode of the response. -If monitoring is enabled queries that do not enter the middleware chain are exported -under the fake domain "dropped" (without a closing dot). +If monitoring is enabled queries that do not enter the middleware chain are exported under the fake +domain "dropped" (without a closing dot). Restarting CoreDNS will stop the monitoring. This is a bug. Also [this upstream Caddy bug](https://github.com/mholt/caddy/issues/675). |