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// SPDX-License-Identifier: GPL-3.0-or-later
package vernemq
// Source Code Metrics:
// - https://github.com/vernemq/vernemq/blob/master/apps/vmq_server/src/vmq_metrics.erl
// - https://github.com/vernemq/vernemq/blob/master/apps/vmq_server/src/vmq_metrics.hrl
// Source Code FSM:
// - https://github.com/vernemq/vernemq/blob/master/apps/vmq_server/src/vmq_mqtt_fsm.erl
// - https://github.com/vernemq/vernemq/blob/master/apps/vmq_server/src/vmq_mqtt5_fsm.erl
// MQTT Packet Types:
// - v4: http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/errata01/os/mqtt-v3.1.1-errata01-os-complete.html#_Toc442180834
// - v5: https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901019
// Erlang VM:
// - http://erlang.org/documentation/doc-5.7.1/erts-5.7.1/doc/html/erlang.html
// Not used metrics (https://docs.vernemq.com/monitoring/introduction):
// - "mqtt_connack_accepted_sent" // v4, not populated, "mqtt_connack_sent" used instead
// - "mqtt_connack_unacceptable_protocol_sent" // v4, not populated, "mqtt_connack_sent" used instead
// - "mqtt_connack_identifier_rejected_sent" // v4, not populated, "mqtt_connack_sent" used instead
// - "mqtt_connack_server_unavailable_sent" // v4, not populated, "mqtt_connack_sent" used instead
// - "mqtt_connack_bad_credentials_sent" // v4, not populated, "mqtt_connack_sent" used instead
// - "mqtt_connack_not_authorized_sent" // v4, not populated, "mqtt_connack_sent" used instead
// - "system_exact_reductions"
// - "system_runtime"
// - "vm_memory_atom"
// - "vm_memory_atom_used"
// - "vm_memory_binary"
// - "vm_memory_code"
// - "vm_memory_ets"
// - "vm_memory_processes_used"
// - "vm_memory_total"
// -----------------------------------------------MQTT------------------------------------------------------------------
const (
// AUTH
metricAUTHReceived = "mqtt_auth_received" // v5 has 'reason_code' label
metricAUTHSent = "mqtt_auth_sent" // v5 has 'reason_code' label
// CONNECT
metricCONNECTReceived = "mqtt_connect_received" // v4, v5
metricCONNACKSent = "mqtt_connack_sent" // v4 has 'return_code' label, v5 has 'reason_code'
// SUBSCRIBE
metricSUBSCRIBEReceived = "mqtt_subscribe_received" // v4, v5
metricSUBACKSent = "mqtt_suback_sent" // v4, v5
metricSUBSCRIBEError = "mqtt_subscribe_error" // v4, v5
metricSUBSCRIBEAuthError = "mqtt_subscribe_auth_error" // v4, v5
// UNSUBSCRIBE
metricUNSUBSCRIBEReceived = "mqtt_unsubscribe_received" // v4, v5
metricUNSUBACKSent = "mqtt_unsuback_sent" // v4, v5
metricUNSUBSCRIBEError = "mqtt_unsubscribe_error" // v4, v5
// PUBLISH
metricPUBSLISHReceived = "mqtt_publish_received" // v4, v5
metricPUBSLIHSent = "mqtt_publish_sent" // v4, v5
metricPUBLISHError = "mqtt_publish_error" // v4, v5
metricPUBLISHAuthError = "mqtt_publish_auth_error" // v4, v5
// Publish acknowledgment (QoS 1)
metricPUBACKReceived = "mqtt_puback_received" // v4, v5 has 'reason_code' label
metricPUBACKSent = "mqtt_puback_sent" // v4, v5 has 'reason_code' label
metricPUBACKInvalid = "mqtt_puback_invalid_error" // v4, v5
// Publish received (QoS 2 delivery part 1)
metricPUBRECReceived = "mqtt_pubrec_received" // v4, v5 has 'reason_code' label
metricPUBRECSent = "mqtt_pubrec_sent" // v4, v5 has 'reason_code' label
metricPUBRECInvalid = "mqtt_pubrec_invalid_error" // v4
// Publish release (QoS 2 delivery part 2)
metricPUBRELReceived = "mqtt_pubrel_received" // v4, v5 has 'reason_code' label
metricPUBRELSent = "mqtt_pubrel_sent" // v4, v5 has 'reason_code' label
// Publish complete (QoS 2 delivery part 3)
metricPUBCOMPReceived = "mqtt_pubcomp_received" // v4, v5 has 'reason_code' label
metricPUBCOMPSent = "mqtt_pubcomp_sent" // v4, v5 has 'reason_code' label
metricPUNCOMPInvalid = "mqtt_pubcomp_invalid_error" // v4, v5
// PING
metricPINGREQReceived = "mqtt_pingreq_received" // v4, v5
metricPINGRESPSent = "mqtt_pingresp_sent" // v4, v5
// DISCONNECT
metricDISCONNECTReceived = "mqtt_disconnect_received" // v4, v5 has 'reason_code' label
metricDISCONNECTSent = "mqtt_disconnect_sent" // v5 has 'reason_code' label
// Misc
metricMQTTInvalidMsgSizeError = "mqtt_invalid_msg_size_error" // v4, v5
)
const (
// Sockets
metricSocketOpen = "socket_open"
metricSocketClose = "socket_close"
metricSocketError = "socket_error"
metricSocketCloseTimeout = "socket_close_timeout"
metricClientKeepaliveExpired = "client_keepalive_expired" // v4, v5
// Queues
metricQueueProcesses = "queue_processes"
metricQueueSetup = "queue_setup"
metricQueueTeardown = "queue_teardown"
metricQueueMessageIn = "queue_message_in"
metricQueueMessageOut = "queue_message_out"
metricQueueMessageDrop = "queue_message_drop"
metricQueueMessageExpired = "queue_message_expired"
metricQueueMessageUnhandled = "queue_message_unhandled"
metricQueueInitializedFromStorage = "queue_initialized_from_storage"
// Subscriptions
metricRouterMatchesLocal = "router_matches_local"
metricRouterMatchesRemote = "router_matches_remote"
metricRouterMemory = "router_memory"
metricRouterSubscriptions = "router_subscriptions"
// Erlang VM
metricSystemUtilization = "system_utilization"
metricSystemProcessCount = "system_process_count"
metricSystemReductions = "system_reductions"
metricSystemContextSwitches = "system_context_switches"
metricSystemIOIn = "system_io_in"
metricSystemIOOut = "system_io_out"
metricSystemRunQueue = "system_run_queue"
metricSystemGCCount = "system_gc_count"
metricSystemWordsReclaimedByGC = "system_words_reclaimed_by_gc"
metricVMMemoryProcesses = "vm_memory_processes"
metricVMMemorySystem = "vm_memory_system"
// Bandwidth
metricBytesReceived = "bytes_received"
metricBytesSent = "bytes_sent"
// Retain
metricRetainMemory = "retain_memory"
metricRetainMessages = "retain_messages"
// Cluster
metricClusterBytesDropped = "cluster_bytes_dropped"
metricClusterBytesReceived = "cluster_bytes_received"
metricClusterBytesSent = "cluster_bytes_sent"
metricNetSplitDetected = "netsplit_detected"
metricNetSplitResolved = "netsplit_resolved"
// Uptime
metricSystemWallClock = "system_wallclock"
)
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