Slow startup

[walles]

On my (Intel) mac, I'm starting Rabbit like this:

docker run --rm -it rabbitmq:3.11.9

First I did a warmup run to get all the downloading out of the way.

The second run then takes 12+ seconds from that I press Enter until I get Server startup complete.

What can I do to get this time down to at most about one second?

Console Output

Note how the first log message isn't printed until about 5s after I press Enter.

/tmp $ date && docker run --rm -it rabbitmq:3.11.9
Ons 22 Feb 2023 10:27:09 CET
2023-02-22 09:27:14.558687+00:00 [notice] <0.44.0> Application syslog exited with reason: stopped
2023-02-22 09:27:14.570829+00:00 [notice] <0.230.0> Logging: switching to configured handler(s); following messages may not be visible in this log output
2023-02-22 09:27:14.601297+00:00 [notice] <0.230.0> Logging: configured log handlers are now ACTIVE
2023-02-22 09:27:14.999933+00:00 [info] <0.230.0> ra: starting system quorum_queues
2023-02-22 09:27:15.000146+00:00 [info] <0.230.0> starting Ra system: quorum_queues in directory: /var/lib/rabbitmq/mnesia/rabbit@2a13755d1d39/quorum/rabbit@2a13755d1d39
2023-02-22 09:27:15.122188+00:00 [info] <0.266.0> ra system 'quorum_queues' running pre init for 0 registered servers
2023-02-22 09:27:15.143209+00:00 [info] <0.267.0> ra: meta data store initialised for system quorum_queues. 0 record(s) recovered
2023-02-22 09:27:15.168643+00:00 [notice] <0.272.0> WAL: ra_log_wal init, open tbls: ra_log_open_mem_tables, closed tbls: ra_log_closed_mem_tables
2023-02-22 09:27:15.182399+00:00 [info] <0.230.0> ra: starting system coordination
2023-02-22 09:27:15.182458+00:00 [info] <0.230.0> starting Ra system: coordination in directory: /var/lib/rabbitmq/mnesia/rabbit@2a13755d1d39/coordination/rabbit@2a13755d1d39
2023-02-22 09:27:15.184968+00:00 [info] <0.279.0> ra system 'coordination' running pre init for 0 registered servers
2023-02-22 09:27:15.186846+00:00 [info] <0.280.0> ra: meta data store initialised for system coordination. 0 record(s) recovered
2023-02-22 09:27:15.187083+00:00 [notice] <0.285.0> WAL: ra_coordination_log_wal init, open tbls: ra_coordination_log_open_mem_tables, closed tbls: ra_coordination_log_closed_mem_tables
2023-02-22 09:27:15.192308+00:00 [info] <0.230.0>
2023-02-22 09:27:15.192308+00:00 [info] <0.230.0>  Starting RabbitMQ 3.11.9 on Erlang 25.2.3 [jit]
2023-02-22 09:27:15.192308+00:00 [info] <0.230.0>  Copyright (c) 2007-2023 VMware, Inc. or its affiliates.
2023-02-22 09:27:15.192308+00:00 [info] <0.230.0>  Licensed under the MPL 2.0. Website: https://rabbitmq.com

  ##  ##      RabbitMQ 3.11.9
  ##  ##
  ##########  Copyright (c) 2007-2023 VMware, Inc. or its affiliates.
  ######  ##
  ##########  Licensed under the MPL 2.0. Website: https://rabbitmq.com

  Erlang:      25.2.3 [jit]
  TLS Library: OpenSSL - OpenSSL 3.0.8 7 Feb 2023
  Release series support status: supported

  Doc guides:  https://rabbitmq.com/documentation.html
  Support:     https://rabbitmq.com/contact.html
  Tutorials:   https://rabbitmq.com/getstarted.html
  Monitoring:  https://rabbitmq.com/monitoring.html

  Logs: /var/log/rabbitmq/rabbit@2a13755d1d39_upgrade.log
        <stdout>

  Config file(s): /etc/rabbitmq/conf.d/10-defaults.conf
                  /etc/rabbitmq/conf.d/management_agent.disable_metrics_collector.conf

  Starting broker...2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>  node           : rabbit@2a13755d1d39
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>  home dir       : /var/lib/rabbitmq
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>  config file(s) : /etc/rabbitmq/conf.d/10-defaults.conf
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>                 : /etc/rabbitmq/conf.d/management_agent.disable_metrics_collector.conf
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>  cookie hash    : i8IAtywchkdwqr/TgY1abw==
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>  log(s)         : /var/log/rabbitmq/rabbit@2a13755d1d39_upgrade.log
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>                 : <stdout>
2023-02-22 09:27:15.195184+00:00 [info] <0.230.0>  database dir   : /var/lib/rabbitmq/mnesia/rabbit@2a13755d1d39
2023-02-22 09:27:20.678529+00:00 [info] <0.230.0> Running boot step pre_boot defined by app rabbit
2023-02-22 09:27:20.678624+00:00 [info] <0.230.0> Running boot step rabbit_global_counters defined by app rabbit
2023-02-22 09:27:20.679336+00:00 [info] <0.230.0> Running boot step rabbit_osiris_metrics defined by app rabbit
2023-02-22 09:27:20.679568+00:00 [info] <0.230.0> Running boot step rabbit_core_metrics defined by app rabbit
2023-02-22 09:27:20.681361+00:00 [info] <0.230.0> Running boot step rabbit_alarm defined by app rabbit
2023-02-22 09:27:20.688648+00:00 [info] <0.300.0> Memory high watermark set to 2377 MiB (2492507750 bytes) of 5942 MiB (6231269376 bytes) total
2023-02-22 09:27:20.694678+00:00 [info] <0.302.0> Enabling free disk space monitoring (disk free space: 40058687488, total memory: 6231269376)
2023-02-22 09:27:20.694821+00:00 [info] <0.302.0> Disk free limit set to 50MB
2023-02-22 09:27:20.698148+00:00 [info] <0.230.0> Running boot step code_server_cache defined by app rabbit
2023-02-22 09:27:20.698281+00:00 [info] <0.230.0> Running boot step file_handle_cache defined by app rabbit
2023-02-22 09:27:20.698594+00:00 [info] <0.305.0> Limiting to approx 1048479 file handles (943629 sockets)
2023-02-22 09:27:20.698772+00:00 [info] <0.306.0> FHC read buffering: OFF
2023-02-22 09:27:20.698917+00:00 [info] <0.306.0> FHC write buffering: ON
2023-02-22 09:27:20.700415+00:00 [info] <0.230.0> Running boot step worker_pool defined by app rabbit
2023-02-22 09:27:20.700563+00:00 [info] <0.287.0> Will use 8 processes for default worker pool
2023-02-22 09:27:20.700624+00:00 [info] <0.287.0> Starting worker pool 'worker_pool' with 8 processes in it
2023-02-22 09:27:20.701672+00:00 [info] <0.230.0> Running boot step database defined by app rabbit
2023-02-22 09:27:20.702347+00:00 [info] <0.230.0> Node database directory at /var/lib/rabbitmq/mnesia/rabbit@2a13755d1d39 is empty. Assuming we need to join an existing cluster or initialise from scratch...
2023-02-22 09:27:20.702480+00:00 [info] <0.230.0> Configured peer discovery backend: rabbit_peer_discovery_classic_config
2023-02-22 09:27:20.702591+00:00 [info] <0.230.0> Will try to lock with peer discovery backend rabbit_peer_discovery_classic_config
2023-02-22 09:27:20.702767+00:00 [info] <0.230.0> All discovered existing cluster peers:
2023-02-22 09:27:20.702877+00:00 [info] <0.230.0> Discovered no peer nodes to cluster with. Some discovery backends can filter nodes out based on a readiness criteria. Enabling debug logging might help troubleshoot.
2023-02-22 09:27:20.705649+00:00 [notice] <0.44.0> Application mnesia exited with reason: stopped
2023-02-22 09:27:20.830828+00:00 [info] <0.230.0> Waiting for Mnesia tables for 30000 ms, 9 retries left
2023-02-22 09:27:20.831095+00:00 [info] <0.230.0> Successfully synced tables from a peer
2023-02-22 09:27:20.841691+00:00 [info] <0.230.0> Feature flags: `feature_flags_v2`: supported, attempt to enable...
2023-02-22 09:27:20.870262+00:00 [notice] <0.288.0> Feature flags: attempt to enable `classic_mirrored_queue_version`...
2023-02-22 09:27:20.899416+00:00 [notice] <0.288.0> Feature flags: `classic_mirrored_queue_version` enabled
2023-02-22 09:27:20.900372+00:00 [notice] <0.288.0> Feature flags: attempt to enable `classic_queue_type_delivery_support`...
2023-02-22 09:27:20.912594+00:00 [notice] <0.288.0> Feature flags: attempt to enable `stream_queue`...
2023-02-22 09:27:20.941665+00:00 [notice] <0.288.0> Feature flags: `stream_queue` enabled
2023-02-22 09:27:20.956740+00:00 [notice] <0.288.0> Feature flags: `classic_queue_type_delivery_support` enabled
2023-02-22 09:27:20.957736+00:00 [notice] <0.288.0> Feature flags: attempt to enable `direct_exchange_routing_v2`...
2023-02-22 09:27:20.970631+00:00 [info] <0.503.0> Waiting for Mnesia tables for 30000 ms, 9 retries left
2023-02-22 09:27:20.970866+00:00 [info] <0.503.0> Successfully synced tables from a peer
2023-02-22 09:27:20.992516+00:00 [notice] <0.288.0> Feature flags: `direct_exchange_routing_v2` enabled
2023-02-22 09:27:20.993191+00:00 [notice] <0.288.0> Feature flags: attempt to enable `drop_unroutable_metric`...
2023-02-22 09:27:21.019861+00:00 [notice] <0.288.0> Feature flags: `drop_unroutable_metric` enabled
2023-02-22 09:27:21.020553+00:00 [notice] <0.288.0> Feature flags: attempt to enable `empty_basic_get_metric`...
2023-02-22 09:27:21.048085+00:00 [notice] <0.288.0> Feature flags: `empty_basic_get_metric` enabled
2023-02-22 09:27:21.049390+00:00 [notice] <0.288.0> Feature flags: attempt to enable `listener_records_in_ets`...
2023-02-22 09:27:21.096265+00:00 [notice] <0.288.0> Feature flags: `listener_records_in_ets` enabled
2023-02-22 09:27:21.098246+00:00 [notice] <0.288.0> Feature flags: attempt to enable `stream_single_active_consumer`...
2023-02-22 09:27:21.128098+00:00 [notice] <0.288.0> Feature flags: `stream_single_active_consumer` enabled
2023-02-22 09:27:21.129187+00:00 [notice] <0.288.0> Feature flags: attempt to enable `tracking_records_in_ets`...
2023-02-22 09:27:21.157967+00:00 [notice] <0.288.0> Feature flags: `tracking_records_in_ets` enabled
2023-02-22 09:27:21.159911+00:00 [info] <0.230.0> Waiting for Mnesia tables for 30000 ms, 9 retries left
2023-02-22 09:27:21.160112+00:00 [info] <0.230.0> Successfully synced tables from a peer
2023-02-22 09:27:21.172701+00:00 [info] <0.230.0> Waiting for Mnesia tables for 30000 ms, 9 retries left
2023-02-22 09:27:21.173040+00:00 [info] <0.230.0> Successfully synced tables from a peer
2023-02-22 09:27:21.173083+00:00 [info] <0.230.0> Peer discovery backend rabbit_peer_discovery_classic_config does not support registration, skipping registration.
2023-02-22 09:27:21.173123+00:00 [info] <0.230.0> Will try to unlock with peer discovery backend rabbit_peer_discovery_classic_config
2023-02-22 09:27:21.173320+00:00 [info] <0.230.0> Running boot step tracking_metadata_store defined by app rabbit
2023-02-22 09:27:21.173532+00:00 [info] <0.625.0> Setting up a table for connection tracking on this node: tracked_connection
2023-02-22 09:27:21.173639+00:00 [info] <0.625.0> Setting up a table for per-vhost connection counting on this node: tracked_connection_per_vhost
2023-02-22 09:27:21.173708+00:00 [info] <0.625.0> Setting up a table for per-user connection counting on this node: tracked_connection_per_user
2023-02-22 09:27:21.173912+00:00 [info] <0.625.0> Setting up a table for channel tracking on this node: tracked_channel
2023-02-22 09:27:21.173977+00:00 [info] <0.625.0> Setting up a table for channel tracking on this node: tracked_channel_per_user
2023-02-22 09:27:21.174221+00:00 [info] <0.230.0> Running boot step networking_metadata_store defined by app rabbit
2023-02-22 09:27:21.174477+00:00 [info] <0.230.0> Running boot step database_sync defined by app rabbit
2023-02-22 09:27:21.174689+00:00 [info] <0.230.0> Running boot step feature_flags defined by app rabbit
2023-02-22 09:27:21.174907+00:00 [info] <0.230.0> Running boot step codec_correctness_check defined by app rabbit
2023-02-22 09:27:21.174967+00:00 [info] <0.230.0> Running boot step external_infrastructure defined by app rabbit
2023-02-22 09:27:21.175035+00:00 [info] <0.230.0> Running boot step rabbit_event defined by app rabbit
2023-02-22 09:27:21.175331+00:00 [info] <0.230.0> Running boot step rabbit_registry defined by app rabbit
2023-02-22 09:27:21.175534+00:00 [info] <0.230.0> Running boot step rabbit_auth_mechanism_amqplain defined by app rabbit
2023-02-22 09:27:21.175689+00:00 [info] <0.230.0> Running boot step rabbit_auth_mechanism_cr_demo defined by app rabbit
2023-02-22 09:27:21.175850+00:00 [info] <0.230.0> Running boot step rabbit_auth_mechanism_plain defined by app rabbit
2023-02-22 09:27:21.176144+00:00 [info] <0.230.0> Running boot step rabbit_exchange_type_direct defined by app rabbit
2023-02-22 09:27:21.176357+00:00 [info] <0.230.0> Running boot step rabbit_exchange_type_fanout defined by app rabbit
2023-02-22 09:27:21.176525+00:00 [info] <0.230.0> Running boot step rabbit_exchange_type_headers defined by app rabbit
2023-02-22 09:27:21.176836+00:00 [info] <0.230.0> Running boot step rabbit_exchange_type_topic defined by app rabbit
2023-02-22 09:27:21.176950+00:00 [info] <0.230.0> Running boot step rabbit_mirror_queue_mode_all defined by app rabbit
2023-02-22 09:27:21.177043+00:00 [info] <0.230.0> Running boot step rabbit_mirror_queue_mode_exactly defined by app rabbit
2023-02-22 09:27:21.177134+00:00 [info] <0.230.0> Running boot step rabbit_mirror_queue_mode_nodes defined by app rabbit
2023-02-22 09:27:21.177245+00:00 [info] <0.230.0> Running boot step rabbit_priority_queue defined by app rabbit
2023-02-22 09:27:21.177305+00:00 [info] <0.230.0> Priority queues enabled, real BQ is rabbit_variable_queue
2023-02-22 09:27:21.177412+00:00 [info] <0.230.0> Running boot step rabbit_queue_location_client_local defined by app rabbit
2023-02-22 09:27:21.177616+00:00 [info] <0.230.0> Running boot step rabbit_queue_location_min_masters defined by app rabbit
2023-02-22 09:27:21.177888+00:00 [info] <0.230.0> Running boot step rabbit_queue_location_random defined by app rabbit
2023-02-22 09:27:21.177996+00:00 [info] <0.230.0> Running boot step kernel_ready defined by app rabbit
2023-02-22 09:27:21.178067+00:00 [info] <0.230.0> Running boot step rabbit_sysmon_minder defined by app rabbit
2023-02-22 09:27:21.178353+00:00 [info] <0.230.0> Running boot step rabbit_epmd_monitor defined by app rabbit
2023-02-22 09:27:21.180011+00:00 [info] <0.634.0> epmd monitor knows us, inter-node communication (distribution) port: 25672
2023-02-22 09:27:21.180380+00:00 [info] <0.230.0> Running boot step guid_generator defined by app rabbit
2023-02-22 09:27:21.183473+00:00 [info] <0.230.0> Running boot step rabbit_node_monitor defined by app rabbit
2023-02-22 09:27:21.184160+00:00 [info] <0.638.0> Starting rabbit_node_monitor
2023-02-22 09:27:21.184435+00:00 [info] <0.230.0> Running boot step delegate_sup defined by app rabbit
2023-02-22 09:27:21.186030+00:00 [info] <0.230.0> Running boot step rabbit_memory_monitor defined by app rabbit
2023-02-22 09:27:21.186678+00:00 [info] <0.230.0> Running boot step rabbit_fifo_dlx_sup defined by app rabbit
2023-02-22 09:27:21.186846+00:00 [info] <0.230.0> Running boot step core_initialized defined by app rabbit
2023-02-22 09:27:21.186911+00:00 [info] <0.230.0> Running boot step upgrade_queues defined by app rabbit
2023-02-22 09:27:21.196184+00:00 [info] <0.230.0> message_store upgrades: 1 to apply
2023-02-22 09:27:21.196411+00:00 [info] <0.230.0> message_store upgrades: Applying rabbit_variable_queue:move_messages_to_vhost_store
2023-02-22 09:27:21.196673+00:00 [info] <0.230.0> message_store upgrades: No durable queues found. Skipping message store migration
2023-02-22 09:27:21.196731+00:00 [info] <0.230.0> message_store upgrades: Removing the old message store data
2023-02-22 09:27:21.198085+00:00 [info] <0.230.0> message_store upgrades: All upgrades applied successfully
2023-02-22 09:27:21.206234+00:00 [info] <0.230.0> Running boot step channel_tracking defined by app rabbit
2023-02-22 09:27:21.206302+00:00 [info] <0.230.0> Running boot step rabbit_channel_tracking_handler defined by app rabbit
2023-02-22 09:27:21.206445+00:00 [info] <0.230.0> Running boot step connection_tracking defined by app rabbit
2023-02-22 09:27:21.206534+00:00 [info] <0.230.0> Running boot step rabbit_connection_tracking_handler defined by app rabbit
2023-02-22 09:27:21.206678+00:00 [info] <0.230.0> Running boot step rabbit_definitions_hashing defined by app rabbit
2023-02-22 09:27:21.206922+00:00 [info] <0.230.0> Running boot step rabbit_exchange_parameters defined by app rabbit
2023-02-22 09:27:21.207088+00:00 [info] <0.230.0> Running boot step rabbit_mirror_queue_misc defined by app rabbit
2023-02-22 09:27:21.207591+00:00 [info] <0.230.0> Running boot step rabbit_policies defined by app rabbit
2023-02-22 09:27:21.208345+00:00 [info] <0.230.0> Running boot step rabbit_policy defined by app rabbit
2023-02-22 09:27:21.208517+00:00 [info] <0.230.0> Running boot step rabbit_queue_location_validator defined by app rabbit
2023-02-22 09:27:21.208667+00:00 [info] <0.230.0> Running boot step rabbit_quorum_memory_manager defined by app rabbit
2023-02-22 09:27:21.208969+00:00 [info] <0.230.0> Running boot step rabbit_stream_coordinator defined by app rabbit
2023-02-22 09:27:21.209539+00:00 [info] <0.230.0> Running boot step rabbit_vhost_limit defined by app rabbit
2023-02-22 09:27:21.209881+00:00 [info] <0.230.0> Running boot step rabbit_mgmt_db_handler defined by app rabbitmq_management_agent
2023-02-22 09:27:21.210018+00:00 [info] <0.230.0> Management plugin: using rates mode 'basic'
2023-02-22 09:27:21.210822+00:00 [info] <0.230.0> Running boot step recovery defined by app rabbit
2023-02-22 09:27:21.212507+00:00 [info] <0.230.0> Running boot step empty_db_check defined by app rabbit
2023-02-22 09:27:21.212577+00:00 [info] <0.230.0> Will seed default virtual host and user...
2023-02-22 09:27:21.212694+00:00 [info] <0.230.0> Adding vhost '/' (description: 'Default virtual host', tags: [])
2023-02-22 09:27:21.214578+00:00 [info] <0.230.0> Applying default limits to vhost '<<"/">>': []
2023-02-22 09:27:21.226312+00:00 [info] <0.680.0> Making sure data directory '/var/lib/rabbitmq/mnesia/rabbit@2a13755d1d39/msg_stores/vhosts/628WB79CIFDYO9LJI6DKMI09L' for vhost '/' exists
2023-02-22 09:27:21.228413+00:00 [info] <0.680.0> Setting segment_entry_count for vhost '/' with 0 queues to '2048'
2023-02-22 09:27:21.231648+00:00 [info] <0.680.0> Starting message stores for vhost '/'
2023-02-22 09:27:21.231984+00:00 [info] <0.685.0> Message store "628WB79CIFDYO9LJI6DKMI09L/msg_store_transient": using rabbit_msg_store_ets_index to provide index
2023-02-22 09:27:21.234360+00:00 [info] <0.680.0> Started message store of type transient for vhost '/'
2023-02-22 09:27:21.234907+00:00 [info] <0.689.0> Message store "628WB79CIFDYO9LJI6DKMI09L/msg_store_persistent": using rabbit_msg_store_ets_index to provide index
2023-02-22 09:27:21.236448+00:00 [warning] <0.689.0> Message store "628WB79CIFDYO9LJI6DKMI09L/msg_store_persistent": rebuilding indices from scratch
2023-02-22 09:27:21.238181+00:00 [info] <0.680.0> Started message store of type persistent for vhost '/'
2023-02-22 09:27:21.238361+00:00 [info] <0.680.0> Recovering 0 queues of type rabbit_classic_queue took 9ms
2023-02-22 09:27:21.238444+00:00 [info] <0.680.0> Recovering 0 queues of type rabbit_quorum_queue took 0ms
2023-02-22 09:27:21.238490+00:00 [info] <0.680.0> Recovering 0 queues of type rabbit_stream_queue took 0ms
2023-02-22 09:27:21.242609+00:00 [info] <0.230.0> Created user 'guest'
2023-02-22 09:27:21.244657+00:00 [info] <0.230.0> Successfully set user tags for user 'guest' to [administrator]
2023-02-22 09:27:21.246902+00:00 [info] <0.230.0> Successfully set permissions for 'guest' in virtual host '/' to '.*', '.*', '.*'
2023-02-22 09:27:21.247041+00:00 [info] <0.230.0> Running boot step rabbit_observer_cli defined by app rabbit
2023-02-22 09:27:21.247463+00:00 [info] <0.230.0> Running boot step rabbit_looking_glass defined by app rabbit
2023-02-22 09:27:21.247559+00:00 [info] <0.230.0> Running boot step rabbit_core_metrics_gc defined by app rabbit
2023-02-22 09:27:21.248026+00:00 [info] <0.230.0> Running boot step background_gc defined by app rabbit
2023-02-22 09:27:21.248278+00:00 [info] <0.230.0> Running boot step routing_ready defined by app rabbit
2023-02-22 09:27:21.248333+00:00 [info] <0.230.0> Running boot step pre_flight defined by app rabbit
2023-02-22 09:27:21.248476+00:00 [info] <0.230.0> Running boot step notify_cluster defined by app rabbit
2023-02-22 09:27:21.248540+00:00 [info] <0.230.0> Running boot step networking defined by app rabbit
2023-02-22 09:27:21.248649+00:00 [info] <0.230.0> Running boot step definition_import_worker_pool defined by app rabbit
2023-02-22 09:27:21.248911+00:00 [info] <0.287.0> Starting worker pool 'definition_import_pool' with 8 processes in it
2023-02-22 09:27:21.250234+00:00 [info] <0.230.0> Running boot step cluster_name defined by app rabbit
2023-02-22 09:27:21.250395+00:00 [info] <0.230.0> Initialising internal cluster ID to 'rabbitmq-cluster-id-6012dd6JkJnelG_XJSJAsA'
2023-02-22 09:27:21.253259+00:00 [info] <0.230.0> Running boot step direct_client defined by app rabbit
2023-02-22 09:27:21.253423+00:00 [info] <0.230.0> Running boot step rabbit_maintenance_mode_state defined by app rabbit
2023-02-22 09:27:21.253484+00:00 [info] <0.230.0> Creating table rabbit_node_maintenance_states for maintenance mode status
2023-02-22 09:27:21.260137+00:00 [info] <0.730.0> Resetting node maintenance status
2023-02-22 09:27:21.273378+00:00 [info] <0.757.0> Prometheus metrics: HTTP (non-TLS) listener started on port 15692
2023-02-22 09:27:21.273561+00:00 [info] <0.730.0> Ready to start client connection listeners
2023-02-22 09:27:21.276211+00:00 [info] <0.801.0> started TCP listener on [::]:5672
 completed with 3 plugins.
2023-02-22 09:27:21.460118+00:00 [info] <0.730.0> Server startup complete; 3 plugins started.
2023-02-22 09:27:21.460118+00:00 [info] <0.730.0>  * rabbitmq_prometheus
2023-02-22 09:27:21.460118+00:00 [info] <0.730.0>  * rabbitmq_web_dispatch
2023-02-22 09:27:21.460118+00:00 [info] <0.730.0>  * rabbitmq_management_agent

[michaelklishin]

What can I do to get this time down to at most about one second?

Nothing, even a blank a RabbitMQ node usually takes a few seconds to start, and the more plugins you have enabled, or queues/streams in the system to recover, or definitions to import, the longer it will be.

And this is for a single node, clustered nodes may perform peer discovery, wait for their peers upon a restart, things like that that depend on the state and the boot sequence/availability of other nodes.

Design your system in a way that does not require one second startup of RabbitMQ nodes.

[lukebakken]

From my Arch Linux workstation, which is probably slower, spec-wise, than your laptop:

lbakken@shostakovich ~
$ date && docker run --rm -it rabbitmq:3.11.9
Wed Feb 22 06:44:05 AM PST 2023
2023-02-22 14:44:07.815805+00:00 [notice] <0.44.0> Application syslog exited with reason: stopped
...
...
...
2023-02-22 14:44:09.612074+00:00 [info] <0.801.0> started TCP listener on [::]:5672
 completed with 3 plugins.
2023-02-22 14:44:09.650957+00:00 [info] <0.730.0> Server startup complete; 3 plugins started.
2023-02-22 14:44:09.650957+00:00 [info] <0.730.0>  * rabbitmq_prometheus
2023-02-22 14:44:09.650957+00:00 [info] <0.730.0>  * rabbitmq_web_dispatch
2023-02-22 14:44:09.650957+00:00 [info] <0.730.0>  * rabbitmq_management_agent

As you know, docker isn't a "native" thing on OS X so it will probably always be slower. I'd also suggest ensuring that DNS resolution is working as expected in your environment.

[walles]

RabbitMQ's slowness was a problem for us when running integration tests locally.

We used to start RabbitMQ before the tests (12s) and shut it down after (4s) for a total of 16s of extra wait time per launch of our integration test suite.

Inspired by this response, I changed this to:

1. Start RabbitMQ unless it's already running
2. Execute the tests
3. Leave RabbitMQ running

This saves us 16s of waiting each time the tests are run, really nice!

Thanks @lukebakken for the inspiration!