--- title: Metrics at the Prometheus Scrape Endpoint description: PingGateway exposes a monitoring endpoint where Prometheus can scrape metrics in a standard Prometheus format. Learn more from the Prometheus website. component: pinggateway version: 2026 page_id: pinggateway:reference:MonitoringMetrics canonical_url: https://docs.pingidentity.com/pinggateway/2026/reference/MonitoringMetrics.html revdate: 2025-05-21T11:17:42Z --- # Metrics at the Prometheus Scrape Endpoint PingGateway exposes a monitoring endpoint where Prometheus can scrape metrics in a standard Prometheus format. Learn more from the [Prometheus website](https://prometheus.io). When PingGateway is set up as described in the [Getting started with PingGateway](../getting-started/preface.html), the Prometheus Scrape Endpoint is available by default at . Learn to query the Prometheus Scrape Endpoint in [Monitor the Prometheus Scrape Endpoint](../maintenance-guide/monitoring.html#proc-monitor-prometheus). | | | | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | Some `ig_jvm_*` metrics depend on the JVM version and configuration. In particular, GC-related metrics depend on the garbage collector that the server uses. The GC metric names are *unstable* and can change even in a minor JVM release. | | Name | Type | Description | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | | `ig_cache_evictions_count{cause,content,fully_qualified_name,heap,name,route,router}` | Summary | Distribution of 'COLLECTED' eviction events | | `ig_cache_evictions_sum{cause,content,fully_qualified_name,heap,name,route,router}` | Summary | Distribution of 'COLLECTED' eviction events | | `ig_cache_gets_total{content,fully_qualified_name,heap,name,result,route,router}` | Counter | Number of times the cache has been asked for a value and a value was found | | `ig_cache_loads_seconds_count{content,fully_qualified_name,heap,name,result,route,router}` | Summary | Track time spent loading entries unsuccessfully; the 'content' label is one of: 'access\_token', 'policy\_decision', 'session', 'user\_profile' | | `ig_cache_loads_seconds_sum{content,fully_qualified_name,heap,name,result,route,router}` | Summary | Track time spent loading entries unsuccessfully; the 'content' label is one of: 'access\_token', 'policy\_decision', 'session', 'user\_profile' | | `ig_cache_loads_seconds{content,fully_qualified_name,heap,name,result,route,router,quantile}` | Summary | Track time spent loading entries unsuccessfully; the 'content' label is one of: 'access\_token', 'policy\_decision', 'session', 'user\_profile' | | `ig_http_client_active_connections{local,remote}` | Gauge | Number of connections to the remote host currently open | | `ig_http_client_active_requests{local,method,remote}` | Gauge | Number of requests waiting for a response | | `ig_http_client_active_ws_connections{local,remote}` | Gauge | Number of websockets currently open | | `ig_http_client_bytes_read_total{local,remote}` | Counter | Number of bytes received from the remote host | | `ig_http_client_bytes_written_total{local,remote}` | Counter | Number of bytes sent to the remote host | | `ig_http_client_queue_pending{local,remote}` | Gauge | Number of pending elements in queue \[DEPRECATED] | | `ig_http_client_queue_time_seconds_count{local,remote}` | Summary | Time spent in queue before being processed | | `ig_http_client_queue_time_seconds_sum{local,remote}` | Summary | Time spent in queue before being processed | | `ig_http_client_queue_time_seconds{local,remote,quantile}` | Summary | Time spent in queue before being processed \[DEPRECATED] | | `ig_http_client_request_bytes_count{local,method,remote}` | Summary | Size of requests in bytes | | `ig_http_client_request_bytes_sum{local,method,remote}` | Summary | Size of requests in bytes | | `ig_http_client_requests_total{local,method,remote}` | Counter | Number of requests sent | | `ig_http_client_response_bytes_count{code,local,method,remote}` | Summary | Size of responses in bytes | | `ig_http_client_response_bytes_sum{code,local,method,remote}` | Summary | Size of responses in bytes | | `ig_http_client_response_time_seconds_count{code,local,method,remote}` | Summary | Response time | | `ig_http_client_response_time_seconds_sum{code,local,method,remote}` | Summary | Response time | | `ig_http_client_response_time_seconds{code,local,method,remote,quantile}` | Summary | Response time | | `ig_http_client_responses_total{code,local,method,remote}` | Counter | Response count with codes | | `ig_http_server_active_connections{local}` | Gauge | Number of open connections to the server | | `ig_http_server_active_requests{local}` | Gauge | Number of requests being processed | | `ig_http_server_active_ws_connections{local}` | Gauge | Number of websockets currently open | | `ig_http_server_bytes_read_total{local}` | Counter | Number of bytes received by the server | | `ig_http_server_bytes_written_total{local}` | Counter | Number of bytes sent by the server | | `ig_http_server_request_bytes_count{local,method}` | Summary | Size of requests in bytes | | `ig_http_server_request_bytes_sum{local,method}` | Summary | Size of requests in bytes | | `ig_http_server_request_resets_total{local,method}` | Counter | Number of request resets | | `ig_http_server_requests_total{local,method}` | Counter | Number of processed requests | | `ig_http_server_response_bytes_count{code,local,method}` | Summary | Size of responses in bytes | | `ig_http_server_response_bytes_sum{code,local,method}` | Summary | Size of responses in bytes | | `ig_http_server_response_time_seconds_count{code,local,method}` | Summary | Request processing time | | `ig_http_server_response_time_seconds_sum{code,local,method}` | Summary | Request processing time | | `ig_http_server_response_time_seconds{code,local,method,quantile}` | Summary | Request processing time | | `ig_jvm_available_cpus` | Gauge | Number of processors available to the Java virtual machine | | `ig_jvm_class_loading_loaded_total` | Counter | Number of classes loaded since the Java virtual machine started | | `ig_jvm_class_loading_unloaded_total` | Counter | Number of classes unloaded since the Java virtual machine started | | `ig_jvm_free_memory_bytes` | Gauge | Bytes of free memory allocated to the Java virtual machine | | `ig_jvm_garbage_collector_count_total{name}` | Counter | Total number of garbage collections since startup | | `ig_jvm_garbage_collector_time_total{name}` | Counter | Approximate accumulated garbage collection elapsed time in milliseconds | | `ig_jvm_max_memory_bytes` | Gauge | Maximum amount of memory that the Java virtual machine will attempt to use | | `ig_jvm_memory_usage_committed{location}` | Gauge | Amount of memory guaranteed to be available to the Java virtual machine | | `ig_jvm_memory_usage_init{location}` | Gauge | Amount of memory the Java virtual machine requested during startup | | `ig_jvm_memory_usage_max{location}` | Gauge | Maximum amount of memory the Java virtual machine can use for memory management | | `ig_jvm_memory_usage_pools_committed{name}` | Gauge | Amount of memory guaranteed to be available to this memory pool | | `ig_jvm_memory_usage_pools_init{name}` | Gauge | Amount of memory the memory pool requested during startup | | `ig_jvm_memory_usage_pools_max{name}` | Gauge | Maximum amount of memory the memory pool can use for memory management | | `ig_jvm_memory_usage_pools_used_after_gc{name}` | Gauge | Amount of memory the memory pool uses after the most recent garbage collection | | `ig_jvm_memory_usage_pools_used{name}` | Gauge | Amount of memory the memory pool currently uses | | `ig_jvm_memory_usage_used{location}` | Gauge | Maximum amount of memory the Java virtual machine currently uses | | `ig_jvm_thread_state_daemon` | Gauge | Number of live daemon threads | | `ig_jvm_thread_state{state}` | Gauge | Number of threads in the specified state | | `ig_jvm_used_memory_bytes` | Gauge | Amount of memory used by the Java virtual machine | | `ig_mcp_error_total{fully_qualified_name,heap,mcp_error,mcp_method,name,route,router}` | Counter | Number of times an MCP error code is triggered | | `ig_mcp_method_time_seconds{fully_qualified_name,heap,mcp_method,mcp_method_param_prompt,mcp_method_param_tool,mcp_method_param_uri,name,route,router,quantile}` | Summary | Elapsed time of an MCP method call | | `ig_pool_completed_total{pool_name,pool_type}` | Counter | Number of elements done with the resource | | `ig_pool_in_use{pool_name,pool_type}` | Gauge | Number of resources used | | `ig_pool_max_size{pool_name,pool_type}` | Gauge | Number of resources used | | `ig_pool_queue_pending{pool_name,pool_type}` | Gauge | Number of pending elements in queue | | `ig_pool_queue_time_seconds_count{pool_name,pool_type}` | Summary | Time spent in queue before being processed | | `ig_pool_queue_time_seconds_sum{pool_name,pool_type}` | Summary | Time spent in queue before being processed | | `ig_pool_queue_time_seconds{pool_name,pool_type,quantile}` | Summary | Time spent in queue before being processed | | `ig_pool_ratio{pool_name,pool_type}` | Gauge | Pool usage ratio, only meaningful if maximum pool size could be determined | | `ig_pool_usage_seconds_count{pool_name,pool_type}` | Summary | Time using a resource | | `ig_pool_usage_seconds_sum{pool_name,pool_type}` | Summary | Time using a resource | | `ig_pool_usage_seconds{pool_name,pool_type,quantile}` | Summary | Time using a resource | | `ig_reverseproxyhandler_ws_proxy_application_side_read_total{frame_type,fully_qualified_name,heap,name,route,router}` | Counter | Number of application side websocket proxy frames received[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_application_side_read_total{frame_type,fully_qualified_name,heap,name}` | Counter | Number of application side websocket proxy frames received[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_application_side_write_total{frame_type,fully_qualified_name,heap,name,route,router}` | Counter | Number of application side websocket proxy frames sent[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_application_side_write_total{frame_type,fully_qualified_name,heap,name}` | Counter | Number of application side websocket proxy frames sent[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_client_side_read_total{frame_type,fully_qualified_name,heap,name,route,router}` | Counter | Number of client side websocket proxy frames received[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_client_side_read_total{frame_type,fully_qualified_name,heap,name}` | Counter | Number of client side websocket proxy frames received[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_client_side_write_total{frame_type,fully_qualified_name,heap,name,route,router}` | Counter | Number of client side websocket proxy frames sent[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_client_side_write_total{frame_type,fully_qualified_name,heap,name}` | Counter | Number of client side websocket proxy frames sent[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_tunnels_active{fully_qualified_name,heap,name,route,router}` | Gauge | Number of active websocket proxy tunnels[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_tunnels_active{fully_qualified_name,heap,name}` | Gauge | Number of active websocket proxy tunnels[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_tunnels_created_total{fully_qualified_name,heap,name,route,router}` | Counter | Number of created websocket proxy tunnels[1](#note-reverseproxyhandler) | | `ig_reverseproxyhandler_ws_proxy_tunnels_created_total{fully_qualified_name,heap,name}` | Counter | Number of created websocket proxy tunnels[1](#note-reverseproxyhandler) | | `ig_route_request_active{name,route,router}` | Gauge | Number of requests being processed | | `ig_route_request_total{name,route,router}` | Counter | Number of requests processed by the router or route since it was deployed | | `ig_route_response_error_total{name,route,router}` | Counter | Number of responses that threw an exception | | `ig_route_response_null_total{name,route,router}` | Counter | Number of responses that were not handled by the route | | `ig_route_response_status_total{family,name,route,router}` | Counter | Number of responses by HTTP status code family. The 'family' label depends on the HTTP status code | | `ig_route_response_time_seconds_count{name,route,router}` | Summary | Response time observations | | `ig_route_response_time_seconds_sum{name,route,router}` | Summary | Response time observations | | `ig_route_response_time_seconds{name,route,router,quantile}` | Summary | Response time observations | | `ig_route_response_total{name,route,router}` | Counter | Number of responses processed by the router or route since it was deployed | | `ig_router_deployed_routes{fully_qualified_name,heap,name}` | Gauge | Number of routes deployed in the configuration | | `ig_startup_seconds_count{class,id,kind,level,parentId,parentKind,parent_id,parent_kind}` | Summary | Top-level startup metrics[2](#note-parent) | | `ig_startup_seconds_count{id,kind,level,parentId,parentKind,parent_id,parent_kind}` | Summary | Top-level startup metrics[2](#note-parent) | | `ig_startup_seconds_sum{class,id,kind,level,parentId,parentKind,parent_id,parent_kind}` | Summary | Top-level startup metrics[2](#note-parent) | | `ig_startup_seconds_sum{id,kind,level,parentId,parentKind,parent_id,parent_kind}` | Summary | Top-level startup metrics[2](#note-parent) | | `ig_startup_seconds{class,id,kind,level,parentId,parentKind,parent_id,parent_kind,quantile}` | Summary | Top-level startup metrics[2](#note-parent) | | `ig_startup_seconds{id,kind,level,parentId,parentKind,parent_id,parent_kind,quantile}` | Summary | Top-level startup metrics[2](#note-parent) | | `ig_timerdecorator_filter_downstream_seconds_count{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated filter (downstream time) | | `ig_timerdecorator_filter_downstream_seconds_sum{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated filter (downstream time) | | `ig_timerdecorator_filter_downstream_seconds{decorated_object,heap,name,quantile}` | Summary | Time to process the request and response in the decorated filter (downstream time) | | `ig_timerdecorator_filter_elapsed_seconds_count{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated filter (elapsed time) | | `ig_timerdecorator_filter_elapsed_seconds_sum{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated filter (elapsed time) | | `ig_timerdecorator_filter_elapsed_seconds{decorated_object,heap,name,quantile}` | Summary | Time to process the request and response in the decorated filter (elapsed time) | | `ig_timerdecorator_filter_internal_seconds_count{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated filter (internal time) | | `ig_timerdecorator_filter_internal_seconds_sum{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated filter (internal time) | | `ig_timerdecorator_filter_internal_seconds{decorated_object,heap,name,quantile}` | Summary | Time to process the request and response in the decorated filter (internal time) | | `ig_timerdecorator_handler_elapsed_seconds_count{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated handler | | `ig_timerdecorator_handler_elapsed_seconds_sum{decorated_object,heap,name}` | Summary | Time to process the request and response in the decorated handler | | `ig_timerdecorator_handler_elapsed_seconds{decorated_object,heap,name,quantile}` | Summary | Time to process the request and response in the decorated handler | 1 The "reverseproxyhandler" in the metric name reflects the name of the ReverseProxyHandler component in the PingGateway configuration. 2 The present implementation includes the deprecated `parentId` and `parentKind` dimensions. Use the equivalent `parent_id` and `parent_kind` dimensions instead.