1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
|
# Metrics
<!-- TOC depthFrom:2 depthTo:6 withLinks:1 updateOnSave:1 orderedList:0 -->
- [RabbitMQ](#rabbitmq)
- [Global](#global)
- [Overview](#overview)
- [Connections](#connections)
- [Channels](#channels)
- [Queues](#queues)
- [Erlang via RabbitMQ](#erlang-via-rabbitmq)
- [Disk IO](#disk-io)
- [Raft](#raft)
- [Telemetry](#telemetry)
- [Erlang](#erlang)
- [Mnesia](#mnesia)
- [VM](#vm)
<!-- /TOC -->
## 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). |
|
