https://github.com/rabbitmq/rabbitmq-prometheus/blob/master/metrics.md


RabbitMQ
  Global
  Overview
  Connections
  Channels
  Queues
  Erlang via RabbitMQ
  Disk IO
  Raft
Telemetry

Erlang
  Mnesia
  VM



RabbitMQ

Global
Metric	Description
rabbitmq_consumer_prefetch	Limit of unacknowledged messages for each consumer
rabbitmq_channel_prefetch	Total limit of unacknowledged messages for all consumers on a channel

Overview
Metric	Description
rabbitmq_connections_opened_total	Total number of connections opened
rabbitmq_connections_closed_total	Total number of connections closed or terminated
rabbitmq_channels_opened_total	Total number of channels opened
rabbitmq_channels_closed_total	Total number of channels closed
rabbitmq_queues_declared_total	Total number of queues declared
rabbitmq_queues_created_total	Total number of queues created
rabbitmq_queues_deleted_total	Total number of queues deleted
rabbitmq_process_open_fds	Open file descriptors
rabbitmq_process_open_tcp_sockets	Open TCP sockets
rabbitmq_process_resident_memory_bytes	Memory used in bytes
rabbitmq_disk_space_available_bytes	Disk space available in bytes
rabbitmq_process_max_fds	Open file descriptors limit
rabbitmq_process_max_tcp_sockets	Open TCP sockets limit
rabbitmq_resident_memory_limit_bytes	Memory high watermark in bytes
rabbitmq_disk_space_available_limit_bytes	Free disk space low watermark in bytes
rabbitmq_connections	Connections currently open
rabbitmq_channels	Channels currently open
rabbitmq_consumers	Consumers currently connected
rabbitmq_queues	Queues available
rabbitmq_build_info	RabbitMQ & Erlang/OTP version info
rabbitmq_identity_info	RabbitMQ node & cluster identity info

Connections
Metric	Description
rabbitmq_connection_incoming_bytes_total	Total number of bytes received on a connection
rabbitmq_connection_outgoing_bytes_total	Total number of bytes sent on a connection
rabbitmq_connection_process_reductions_total	Total number of connection process reductions
rabbitmq_connection_incoming_packets_total	Total number of packets received on a connection
rabbitmq_connection_outgoing_packets_total	Total number of packets sent on a connection
rabbitmq_connection_pending_packets	Number of packets waiting to be sent on a connection
rabbitmq_connection_channels	Channels on a connection

Channels
Metric	Description
rabbitmq_channel_consumers	Consumers on a channel
rabbitmq_channel_messages_unacked	Delivered but not yet acknowledged messages
rabbitmq_channel_messages_unconfirmed	Published but not yet confirmed messages
rabbitmq_channel_messages_uncommitted	Messages received in a transaction but not yet committed
rabbitmq_channel_acks_uncommitted	Message acknowledgements in a transaction not yet committed
rabbitmq_channel_messages_published_total	Total number of messages published into an exchange on a channel
rabbitmq_channel_messages_confirmed_total	Total number of messages published into an exchange and confirmed on the channel
rabbitmq_channel_messages_unroutable_returned_total	Total number of messages published as mandatory into an exchange and returned to the publisher as unroutable
rabbitmq_channel_messages_unroutable_dropped_total	Total number of messages published as non-mandatory into an exchange and dropped as unroutable
rabbitmq_channel_process_reductions_total	Total number of channel process reductions
rabbitmq_channel_get_ack_total	Total number of messages fetched with basic.get in manual acknowledgement mode
rabbitmq_channel_get_total	Total number of messages fetched with basic.get in automatic acknowledgement mode
rabbitmq_channel_messages_delivered_ack_total	Total number of messages delivered to consumers in manual acknowledgement mode
rabbitmq_channel_messages_delivered_total	Total number of messages delivered to consumers in automatic acknowledgement mode
rabbitmq_channel_messages_redelivered_total	Total number of messages redelivered to consumers
rabbitmq_channel_messages_acked_total	Total number of messages acknowledged by consumers
rabbitmq_channel_get_empty_total	Total number of times basic.get operations fetched no message

Queues
Metric	Description
rabbitmq_queue_messages_published_total	Total number of messages published to queues
rabbitmq_queue_messages_ready	Messages ready to be delivered to consumers
rabbitmq_queue_messages_unacked	Messages delivered to consumers but not yet acknowledged
rabbitmq_queue_messages	Sum of ready and unacknowledged messages - total queue depth
rabbitmq_queue_process_reductions_total	Total number of queue process reductions
rabbitmq_queue_consumers	Consumers on a queue
rabbitmq_queue_consumer_utilisation	Consumer utilisation
rabbitmq_queue_process_memory_bytes	Memory in bytes used by the Erlang queue process
rabbitmq_queue_messages_ram	Ready and unacknowledged messages stored in memory
rabbitmq_queue_messages_ram_bytes	Size of ready and unacknowledged messages stored in memory
rabbitmq_queue_messages_ready_ram	Ready messages stored in memory
rabbitmq_queue_messages_unacked_ram	Unacknowledged messages stored in memory
rabbitmq_queue_messages_persistent	Persistent messages
rabbitmq_queue_messages_persistent_bytes	Size in bytes of persistent messages
rabbitmq_queue_messages_bytes	Size in bytes of ready and unacknowledged messages
rabbitmq_queue_messages_ready_bytes	Size in bytes of ready messages
rabbitmq_queue_messages_unacked_bytes	Size in bytes of all unacknowledged messages
rabbitmq_queue_messages_paged_out	Messages paged out to disk
rabbitmq_queue_messages_paged_out_bytes	Size in bytes of messages paged out to disk
rabbitmq_queue_disk_reads_total	Total number of times queue read messages from disk
rabbitmq_queue_disk_writes_total	Total number of times queue wrote messages to disk

Erlang via RabbitMQ
Metric	Description
rabbitmq_erlang_processes_used	Erlang processes used
rabbitmq_erlang_gc_runs_total	Total number of Erlang garbage collector runs
rabbitmq_erlang_gc_reclaimed_bytes_totalTotal	number of bytes of memory reclaimed by Erlang garbage collector
rabbitmq_erlang_scheduler_context_switches_total	Total number of Erlang scheduler context switches
rabbitmq_erlang_processes_limit	Erlang processes limit
rabbitmq_erlang_scheduler_run_queue	Erlang scheduler run queue
rabbitmq_erlang_net_ticktime_seconds	Inter-node heartbeat interval in seconds
rabbitmq_erlang_uptime_seconds	Node uptime

Disk IO
Metric	Description
rabbitmq_io_read_ops_total	Total number of I/O read operations
rabbitmq_io_read_bytes_total	Total number of I/O bytes read
rabbitmq_io_write_ops_total	Total number of I/O write operations
rabbitmq_io_write_bytes_total	Total number of I/O bytes written
rabbitmq_io_sync_ops_total	Total number of I/O sync operations
rabbitmq_io_seek_ops_total	Total number of I/O seek operations
rabbitmq_io_open_attempt_ops_total	Total number of file open attempts
rabbitmq_io_reopen_ops_total	Total number of times files have been reopened
rabbitmq_schema_db_ram_tx_total	Total number of Schema DB memory transactions
rabbitmq_schema_db_disk_tx_total	Total number of Schema DB disk transactions
rabbitmq_msg_store_read_total	Total number of Message Store read operations
rabbitmq_msg_store_write_total	Total number of Message Store write operations
rabbitmq_queue_index_read_ops_total	Total number of Queue Index read operations
rabbitmq_queue_index_write_ops_total	Total number of Queue Index write operations
rabbitmq_queue_index_journal_write_ops_total	Total number of Queue Index Journal write operations
rabbitmq_io_read_time_seconds_total	Total I/O read time
rabbitmq_io_write_time_seconds_total	Total I/O write time
rabbitmq_io_sync_time_seconds_total	Total I/O sync time
rabbitmq_io_seek_time_seconds_total	Total I/O seek time
rabbitmq_io_open_attempt_time_seconds_total	Total file open attempts time


Raft
Metric	Description
rabbitmq_raft_term_total	Current Raft term number
rabbitmq_raft_log_snapshot_index	Raft log snapshot index
rabbitmq_raft_log_last_applied_index	Raft log last applied index
rabbitmq_raft_log_commit_index	Raft log commit index
rabbitmq_raft_log_last_written_index	Raft log last written index
rabbitmq_raft_entry_commit_latency_seconds	Time taken for an entry to be committed



Telemetry
Metric	Description
telemetry_scrape_encoded_size_bytes	Scrape size, encoded
telemetry_scrape_size_bytes	Scrape size, not encoded
telemetry_scrape_duration_seconds	Scrape duration



Erlang

Mnesia
Metric	Description
erlang_mnesia_held_locks	Number of held locks
erlang_mnesia_lock_queue	Number of transactions waiting for a lock
erlang_mnesia_transaction_participants	Number of participant transactions
erlang_mnesia_transaction_coordinators	Number of coordinator transactions
erlang_mnesia_failed_transactions	Number of failed (i.e. aborted) transactions
erlang_mnesia_committed_transactions	Number of committed transactions
erlang_mnesia_logged_transactions	Number of transactions logged
erlang_mnesia_restarted_transactions	Total number of transaction restarts

VM
Metric	Description
erlang_vm_dist_recv_bytes	Number of bytes received by the socket.
erlang_vm_dist_recv_cnt	Number of packets received by the socket.
erlang_vm_dist_recv_max_bytes	Size of the largest packet, in bytes, received by the socket.
erlang_vm_dist_recv_avg_bytes	Average size of packets, in bytes, received by the socket.
erlang_vm_dist_recv_dvi_bytes	Average packet size deviation, in bytes, received by the socket.
erlang_vm_dist_send_bytes	Number of bytes sent from the socket.
erlang_vm_dist_send_cnt	Number of packets sent from the socket.
erlang_vm_dist_send_max_bytes	Size of the largest packet, in bytes, sent from the socket.
erlang_vm_dist_send_avg_bytes	Average size of packets, in bytes, sent from the socket.
erlang_vm_dist_send_pend_bytes	Number of bytes waiting to be sent by the socket.
erlang_vm_dist_port_input_bytes	The total number of bytes read from the port.
erlang_vm_dist_port_output_bytes	The total number of bytes written to the port.
erlang_vm_dist_port_memory_bytes	The total number of bytes allocated for this port by the runtime system. The port itself can have allocated memory that is not included.
erlang_vm_dist_port_queue_size_bytes	The total number of bytes queued by the port using the ERTS driver queue implementation.
erlang_vm_dist_proc_memory_bytes	The size in bytes of the process. This includes call stack, heap, and internal structures.
erlang_vm_dist_proc_heap_size_words	The size in words of the youngest heap generation of the process. This generation includes the process stack. This information is highly implementation-dependent, and can change if the implementation changes.
erlang_vm_dist_proc_min_heap_size_words	The minimum heap size for the process.
erlang_vm_dist_proc_min_bin_vheap_size_words	The minimum binary virtual heap size for the process.
erlang_vm_dist_proc_stack_size_words	The stack size, in words, of the process.
erlang_vm_dist_proc_total_heap_size_words	The total size, in words, of all heap fragments of the process. This includes the process stack and any unreceived messages that are considered to be part of the heap.
erlang_vm_dist_proc_message_queue_len	The number of messages currently in the message queue of the process.
erlang_vm_dist_proc_reductions	The number of reductions executed by the process.
erlang_vm_dist_proc_status	The current status of the distribution process. The status is represented as a numerical value where exiting=1', suspended=2', runnable=3', garbage_collecting=4', running=5' and waiting=6'.
erlang_vm_dist_node_state	The current state of the distribution link. The state is represented as a numerical value where pending=1', up_pending=2' and `up=3'.
erlang_vm_dist_node_queue_size_bytes	The number of bytes in the output distribution queue. This queue sits between the Erlang code and the port driver.
erlang_vm_memory_atom_bytes_total	The total amount of memory currently allocated for atoms. This memory is part of the memory presented as system memory.
erlang_vm_memory_bytes_total	The total amount of memory currently allocated. This is the same as the sum of the memory size for processes and system.
erlang_vm_memory_dets_tables	Erlang VM DETS Tables count.
erlang_vm_memory_ets_tables	Erlang VM ETS Tables count.
erlang_vm_memory_processes_bytes_total	The total amount of memory currently allocated for the Erlang processes.
erlang_vm_memory_system_bytes_total	The total amount of memory currently allocated for the emulator that is not directly related to any Erlang process. Memory presented as processes is not included in this memory.
erlang_vm_statistics_bytes_output_total	Total number of bytes output to ports.
erlang_vm_statistics_bytes_received_total	Total number of bytes received through ports.
erlang_vm_statistics_context_switches	Total number of context switches since the system started.
erlang_vm_statistics_dirty_cpu_run_queue_length	Length of the dirty CPU run-queue.
erlang_vm_statistics_dirty_io_run_queue_length	Length of the dirty IO run-queue.
erlang_vm_statistics_garbage_collection_number_of_gcs	Garbage collection: number of GCs.
erlang_vm_statistics_garbage_collection_bytes_reclaimed	Garbage collection: bytes reclaimed.
erlang_vm_statistics_garbage_collection_words_reclaimed	Garbage collection: words reclaimed.
erlang_vm_statistics_reductions_total	Total reductions.
erlang_vm_statistics_run_queues_length_total	Length of normal run-queues.
erlang_vm_statistics_wallclock_time_milliseconds	Information about wall clock. Same as erlang_vm_statistics_runtime_milliseconds except that real time is measured.
erlang_vm_statistics_runtime_milliseconds	The sum of the runtime for all threads in the Erlang runtime system. Can be greater than wall clock time.
erlang_vm_statistics_wallclock_time_milliseconds	Information about wall clock. Same as erlang_vm_statistics_runtime_milliseconds except that real time is measured.
erlang_vm_dirty_cpu_schedulers	The number of scheduler dirty CPU scheduler threads used by the emulator.
erlang_vm_dirty_cpu_schedulers_online	The number of dirty CPU scheduler threads online.
erlang_vm_dirty_io_schedulers	The number of scheduler dirty I/O scheduler threads used by the emulator.
erlang_vm_ets_limit	The maximum number of ETS tables allowed.
erlang_vm_logical_processors	The detected number of logical processors configured in the system.
erlang_vm_logical_processors_available	The detected number of logical processors available to the Erlang runtime system.
erlang_vm_logical_processors_online	The detected number of logical processors online on the system.
erlang_vm_port_count	The number of ports currently existing at the local node.
erlang_vm_port_limit	The maximum number of simultaneously existing ports at the local node.
erlang_vm_process_count	The number of processes currently existing at the local node.
erlang_vm_process_limit	The maximum number of simultaneously existing processes at the local node.
erlang_vm_schedulers	The number of scheduler threads used by the emulator.
erlang_vm_schedulers_online	The number of schedulers online.
erlang_vm_smp_support	1 if the emulator has been compiled with SMP support, otherwise 0.
erlang_vm_threads	1 if the emulator has been compiled with thread support, otherwise 0.
erlang_vm_thread_pool_size	The number of async threads in the async thread pool used for asynchronous driver calls.
erlang_vm_time_correction	1 if time correction is enabled, otherwise 0.
erlang_vm_atom_count	The number of atom currently existing at the local node.
erlang_vm_atom_limit	The maximum number of simultaneously existing atom at the local node.
erlang_vm_allocators	Allocated (carriers_size) and used (blocks_size) memory for the different allocators in the VM. See erts_alloc(3).