Quick navigation
How to access Prometheus metrics from Gateway
The Prometheus endpoint is <gateway_host>:<gateway_port>/metrics
, for example;
localhost:8888/metrics
Please note that if you enabled GATEWAY_SECURED_METRICS
you will need to access it with credentials, for example;
--username "admin:conduktor" localhost:8888/metrics
See the env variables for more.
Available metrics for Prometheus
Metric description | Metric value |
---|---|
The number of connections closed per second | gateway_upstream_connection_close_rate |
The total number of connections closed | gateway_upstream_connection_close_total |
The number of new connections established per second | gateway_upstream_connection_creation_rate |
The total number of new connections established | gateway_upstream_connection_creation_total |
The number of times the I/O layer checked for new I/O to perform per second | gateway_upstream_select_rate |
The total number of times the I/O layer checked for new I/O to perform | gateway_upstream_select_total |
The number of time the I/O thread spent waiting | gateway_upstream_io_wait_rate |
The total time the I/O thread spent waiting | gateway_upstream_io_wait_total |
The number of active broker connections of the connection pool | gateway_brokered_active_connections |
The number of active connections per vcluster | gateway_active_connections_vcluster |
The latency to process a request and generate a response | gateway_latency_request_response |
The latency to process a request and generate a response for each ApiKey | gateway_apiKeys_latency_request_response |
The total number of bytes exchanged through the gateway | gateway_bytes_exchanged |
The total bytes exchanged within the context of the specified virtual cluster | gateway_bytes_exchanged_vcluster |
A counter on number of rebuilding kafka request | gateway_thread_request_rebuild |
The number of pending tasks on our Gateway thread (where all rebuilding request/response happen) | gateway_thread_tasks |
The number of connections from Gateway to the backing Kafka cluster | gateway_upstream_connections_upstream_connected |
The number of connections from clients to Gateway | gateway_upstream_connections_downstream |
The number of Kafka nodes | gateway_upstream_io_nodes |
The size of the kcache (equal to the number of key-value pairs we have in the cache) | gateway_kcache_size |
The number of active backend brokers | gateway_backend_brokered_active_connections |
The number of authentication attempts that failed for each user | gateway_failed_authentications |
The log end offset of client topics | gateway_topic_log_end_offset |
The current offset of consumer group on client topic | gateway_topic_current_offset |
The total bytes exchanged within the context of the specified topic | gateway_bytes_exchanged_topic_total |
The total errors per API key for the specified virtual cluster and username | gateway_error_per_apiKeys |
The current inflight API keys of the specified virtual cluster and username | gateway_current_inflight_apiKeys |