配置文件Config
在Web的可视化管理界面中可以看到一些文件的路径
比如
Config文件的地址
数据库存放的文件夹
log文件的地址
进入到这个文件夹会发现有这些文件，其中example是config的示例文件，事实上config文件是空的，我们需要从示例文件中拷贝代码到config中
下面是示例文件的全部内容，其中有一些需要我们关注的
tcp_listeners 端口设置，这里默认的是5672。这边还提供了另一种设置方法
{tcp_listeners, [5672]}
{tcp_listeners, [{"127.0.0.1", 5672}, %% {"::1", 5672}]}
日志输出级别设置，默认是info。这会产生大量的无用日志，甚至可以把硬盘挤爆，所以设置成error级别就好
{log_levels, [{connection, error}, {channel, error}]}
内存占用设置,可以根据百分比设置，也可以根据G、 M、Kb去设置，当超出时会让connection blocked
{vm_memory_high_watermark, 0.4}
硬盘占用设置，和内存相同，在压力较大时也会connection blocked
{vm_memory_high_watermark, 0.4}
config里还有很多重要的设置，比如默认的vhost、 user。当然现在一一去说的话会让人感到莫名所以，因为我们才刚开始接触到RabbitMQ。所以在后面的学习中再一一讲解
%% -*- mode: erlang -*-
%% ----------------------------------------------------------------------------
%% RabbitMQ Sample Configuration File.
%%
%% See http://www.rabbitmq.com/configure.html for details.
%% ----------------------------------------------------------------------------
[
{rabbit,
[%%
%% Network Connectivity
%% ====================
%% %% By default, RabbitMQ will listen on all interfaces, using
%% the standard (reserved) AMQP port.
%%
%% {tcp_listeners, [5672]}, %% To listen on a specific interface, provide a tuple of {IpAddress, Port}.
%% For example, to listen only on localhost for both IPv4 and IPv6:
%%
%% {tcp_listeners, [{"127.0.0.1", 5672},
%% {"::1", 5672}]}, %% SSL listeners are configured in the same fashion as TCP listeners,
%% including the option to control the choice of interface.
%%
%% {ssl_listeners, [5671]}, %% Number of Erlang processes that will accept connections for the TCP
%% and SSL listeners.
%%
%% {num_tcp_acceptors, 10},
%% {num_ssl_acceptors, 1}, %% Maximum time for AMQP 0-8/0-9/0-9-1 handshake (after socket connection
%% and SSL handshake), in milliseconds.
%%
%% {handshake_timeout, 10000}, %% Log levels (currently just used for connection logging).
%% One of 'debug', 'info', 'warning', 'error' or 'none', in decreasing
%% order of verbosity. Defaults to 'info'.
%%
{log_levels, [{connection, error}, {channel, error}]} %% Set to 'true' to perform reverse DNS lookups when accepting a
%% connection. Hostnames will then be shown instead of IP addresses
%% in rabbitmqctl and the management plugin.
%%
%% {reverse_dns_lookups, true}, %%
%% Security / AAA
%% ==============
%% %% The default "guest" user is only permitted to access the server
%% via a loopback interface (e.g. localhost).
%% {loopback_users, [<<"guest">>]},
%%
%% Uncomment the following line if you want to allow access to the
%% guest user from anywhere on the network.
%% {loopback_users, []}, %% Configuring SSL.
%% See http://www.rabbitmq.com/ssl.html for full documentation.
%%
%% {ssl_options, [{cacertfile, "/path/to/testca/cacert.pem"},
%% {certfile, "/path/to/server/cert.pem"},
%% {keyfile, "/path/to/server/key.pem"},
%% {verify, verify_peer},
%% {fail_if_no_peer_cert, false}]}, %% Choose the available SASL mechanism(s) to expose.
%% The two default (built in) mechanisms are 'PLAIN' and
%% 'AMQPLAIN'. Additional mechanisms can be added via
%% plugins.
%%
%% See http://www.rabbitmq.com/authentication.html for more details.
%%
%% {auth_mechanisms, ['PLAIN', 'AMQPLAIN']}, %% Select an authentication database to use. RabbitMQ comes bundled
%% with a built-in auth-database, based on mnesia.
%%
%% {auth_backends, [rabbit_auth_backend_internal]}, %% Configurations supporting the rabbitmq_auth_mechanism_ssl and
%% rabbitmq_auth_backend_ldap plugins.
%%
%% NB: These options require that the relevant plugin is enabled.
%% See http://www.rabbitmq.com/plugins.html for further details. %% The RabbitMQ-auth-mechanism-ssl plugin makes it possible to
%% authenticate a user based on the client's SSL certificate.
%%
%% To use auth-mechanism-ssl, add to or replace the auth_mechanisms
%% list with the entry 'EXTERNAL'.
%%
%% {auth_mechanisms, ['EXTERNAL']}, %% The rabbitmq_auth_backend_ldap plugin allows the broker to
%% perform authentication and authorisation by deferring to an
%% external LDAP server.
%%
%% For more information about configuring the LDAP backend, see
%% http://www.rabbitmq.com/ldap.html.
%%
%% Enable the LDAP auth backend by adding to or replacing the
%% auth_backends entry:
%%
%% {auth_backends, [rabbit_auth_backend_ldap]}, %% This pertains to both the rabbitmq_auth_mechanism_ssl plugin and
%% STOMP ssl_cert_login configurations. See the rabbitmq_stomp
%% configuration section later in this file and the README in
%% https://github.com/rabbitmq/rabbitmq-auth-mechanism-ssl for further
%% details.
%%
%% To use the SSL cert's CN instead of its DN as the username
%%
%% {ssl_cert_login_from, common_name}, %% SSL handshake timeout, in milliseconds.
%%
%% {ssl_handshake_timeout, 5000}, %% Password hashing implementation. Will only affect newly
%% created users. To recalculate hash for an existing user
%% it's necessary to update her password.
%%
%% {password_hashing_module, rabbit_password_hashing_sha256}, %% Configuration entry encryption.
%% See http://www.rabbitmq.com/configure.html#configuration-encryption
%%
%% To specify the passphrase in the configuration file:
%%
%% {config_entry_decoder, [{passphrase, <<"mypassphrase">>}]}
%%
%% To specify the passphrase in an external file:
%%
%% {config_entry_decoder, [{passphrase, {file, "/path/to/passphrase/file"}}]}
%%
%% To make the broker request the passphrase when it starts:
%%
%% {config_entry_decoder, [{passphrase, prompt}]}
%%
%% To change encryption settings:
%%
%% {config_entry_decoder, [{cipher, aes_cbc256},
%% {hash, sha512},
%% {iterations, 1000}]} %%
%% Default User / VHost
%% ====================
%% %% On first start RabbitMQ will create a vhost and a user. These
%% config items control what gets created. See
%% http://www.rabbitmq.com/access-control.html for further
%% information about vhosts and access control.
%%
%% {default_vhost, <<"/">>},
%% {default_user, <<"guest">>},
%% {default_pass, <<"guest">>},
%% {default_permissions, [<<".*">>, <<".*">>, <<".*">>]}, %% Tags for default user
%%
%% For more details about tags, see the documentation for the
%% Management Plugin at http://www.rabbitmq.com/management.html.
%%
%% {default_user_tags, [administrator]}, %%
%% Additional network and protocol related configuration
%% =====================================================
%% %% Set the default AMQP heartbeat delay (in seconds).
%%
%% {heartbeat, 60}, %% Set the max permissible size of an AMQP frame (in bytes).
%%
%% {frame_max, 131072}, %% Set the max frame size the server will accept before connection
%% tuning occurs
%%
%% {initial_frame_max, 4096}, %% Set the max permissible number of channels per connection.
%% 0 means "no limit".
%%
%% {channel_max, 128}, %% Customising Socket Options.
%%
%% See (http://www.erlang.org/doc/man/inet.html#setopts-2) for
%% further documentation.
%%
%% {tcp_listen_options, [{backlog, 128},
%% {nodelay, true},
%% {exit_on_close, false}]}, %%
%% Resource Limits & Flow Control
%% ==============================
%%
%% See http://www.rabbitmq.com/memory.html for full details. %% Memory-based Flow Control threshold.
%%
%% {vm_memory_high_watermark, 0.4}, %% Alternatively, we can set a limit (in bytes) of RAM used by the node.
%%
%% {vm_memory_high_watermark, {absolute, 1073741824}},
%%
%% Or you can set absolute value using memory units.
%%
%% {vm_memory_high_watermark, {absolute, "1024M"}},
%%
%% Supported units suffixes:
%%
%% k, kiB: kibibytes (2^10 bytes)
%% M, MiB: mebibytes (2^20)
%% G, GiB: gibibytes (2^30)
%% kB: kilobytes (10^3)
%% MB: megabytes (10^6)
%% GB: gigabytes (10^9) %% Fraction of the high watermark limit at which queues start to
%% page message out to disc in order to free up memory.
%%
%% Values greater than 0.9 can be dangerous and should be used carefully.
%%
%% {vm_memory_high_watermark_paging_ratio, 0.5}, %% Interval (in milliseconds) at which we perform the check of the memory
%% levels against the watermarks.
%%
%% {memory_monitor_interval, 2500}, %% Set disk free limit (in bytes). Once free disk space reaches this
%% lower bound, a disk alarm will be set - see the documentation
%% listed above for more details.
%%
%% {disk_free_limit, 50000000},
%%
%% Or you can set it using memory units (same as in vm_memory_high_watermark)
%% {disk_free_limit, "50MB"},
%% {disk_free_limit, "50000kB"},
%% {disk_free_limit, "2GB"}, %% Alternatively, we can set a limit relative to total available RAM.
%%
%% Values lower than 1.0 can be dangerous and should be used carefully.
%% {disk_free_limit, {mem_relative, 2.0}}, %%
%% Misc/Advanced Options
%% =====================
%%
%% NB: Change these only if you understand what you are doing!
%% %% To announce custom properties to clients on connection:
%%
%% {server_properties, []}, %% How to respond to cluster partitions.
%% See http://www.rabbitmq.com/partitions.html for further details.
%%
%% {cluster_partition_handling, ignore}, %% Make clustering happen *automatically* at startup - only applied
%% to nodes that have just been reset or started for the first time.
%% See http://www.rabbitmq.com/clustering.html#auto-config for
%% further details.
%%
%% {cluster_nodes, {['rabbit@my.host.com'], disc}}, %% Interval (in milliseconds) at which we send keepalive messages
%% to other cluster members. Note that this is not the same thing
%% as net_ticktime; missed keepalive messages will not cause nodes
%% to be considered down.
%%
%% {cluster_keepalive_interval, 10000}, %% Set (internal) statistics collection granularity.
%%
%% {collect_statistics, none}, %% Statistics collection interval (in milliseconds).
%%
%% {collect_statistics_interval, 5000}, %% Explicitly enable/disable hipe compilation.
%%
%% {hipe_compile, true}, %% Timeout used when waiting for Mnesia tables in a cluster to
%% become available.
%%
%% {mnesia_table_loading_timeout, 30000}, %% Size in bytes below which to embed messages in the queue index. See
%% http://www.rabbitmq.com/persistence-conf.html
%%
%% {queue_index_embed_msgs_below, 4096} ]}, %% ----------------------------------------------------------------------------
%% Advanced Erlang Networking/Clustering Options.
%%
%% See http://www.rabbitmq.com/clustering.html for details
%% ----------------------------------------------------------------------------
{kernel,
[%% Sets the net_kernel tick time.
%% Please see http://erlang.org/doc/man/kernel_app.html and
%% http://www.rabbitmq.com/nettick.html for further details.
%%
%% {net_ticktime, 60}
]}, %% ----------------------------------------------------------------------------
%% RabbitMQ Management Plugin
%%
%% See http://www.rabbitmq.com/management.html for details
%% ---------------------------------------------------------------------------- {rabbitmq_management,
[%% Pre-Load schema definitions from the following JSON file. See
%% http://www.rabbitmq.com/management.html#load-definitions
%%
%% {load_definitions, "/path/to/schema.json"}, %% Log all requests to the management HTTP API to a file.
%%
%% {http_log_dir, "/path/to/access.log"}, %% Change the port on which the HTTP listener listens,
%% specifying an interface for the web server to bind to.
%% Also set the listener to use SSL and provide SSL options.
%%
%% {listener, [{port, 12345},
%% {ip, "127.0.0.1"},
%% {ssl, true},
%% {ssl_opts, [{cacertfile, "/path/to/cacert.pem"},
%% {certfile, "/path/to/cert.pem"},
%% {keyfile, "/path/to/key.pem"}]}]}, %% One of 'basic', 'detailed' or 'none'. See
%% http://www.rabbitmq.com/management.html#fine-stats for more details.
%% {rates_mode, basic}, %% Configure how long aggregated data (such as message rates and queue
%% lengths) is retained. Please read the plugin's documentation in
%% http://www.rabbitmq.com/management.html#configuration for more
%% details.
%%
%% {sample_retention_policies,
%% [{global, [{60, 5}, {3600, 60}, {86400, 1200}]},
%% {basic, [{60, 5}, {3600, 60}]},
%% {detailed, [{10, 5}]}]}
]}, %% ----------------------------------------------------------------------------
%% RabbitMQ Shovel Plugin
%%
%% See http://www.rabbitmq.com/shovel.html for details
%% ---------------------------------------------------------------------------- {rabbitmq_shovel,
[{shovels,
[%% A named shovel worker.
%% {my_first_shovel,
%% [ %% List the source broker(s) from which to consume.
%%
%% {sources,
%% [%% URI(s) and pre-declarations for all source broker(s).
%% {brokers, ["amqp://user:password@host.domain/my_vhost"]},
%% {declarations, []}
%% ]}, %% List the destination broker(s) to publish to.
%% {destinations,
%% [%% A singular version of the 'brokers' element.
%% {broker, "amqp://"},
%% {declarations, []}
%% ]}, %% Name of the queue to shovel messages from.
%%
%% {queue, <<"your-queue-name-goes-here">>}, %% Optional prefetch count.
%%
%% {prefetch_count, 10}, %% when to acknowledge messages:
%% - no_ack: never (auto)
%% - on_publish: after each message is republished
%% - on_confirm: when the destination broker confirms receipt
%%
%% {ack_mode, on_confirm}, %% Overwrite fields of the outbound basic.publish.
%%
%% {publish_fields, [{exchange, <<"my_exchange">>},
%% {routing_key, <<"from_shovel">>}]}, %% Static list of basic.properties to set on re-publication.
%%
%% {publish_properties, [{delivery_mode, 2}]}, %% The number of seconds to wait before attempting to
%% reconnect in the event of a connection failure.
%%
%% {reconnect_delay, 2.5} %% ]} %% End of my_first_shovel
]}
%% Rather than specifying some values per-shovel, you can specify
%% them for all shovels here.
%%
%% {defaults, [{prefetch_count, 0},
%% {ack_mode, on_confirm},
%% {publish_fields, []},
%% {publish_properties, [{delivery_mode, 2}]},
%% {reconnect_delay, 2.5}]}
]}, %% ----------------------------------------------------------------------------
%% RabbitMQ Stomp Adapter
%%
%% See http://www.rabbitmq.com/stomp.html for details
%% ---------------------------------------------------------------------------- {rabbitmq_stomp,
[%% Network Configuration - the format is generally the same as for the broker %% Listen only on localhost (ipv4 & ipv6) on a specific port.
%% {tcp_listeners, [{"127.0.0.1", 61613},
%% {"::1", 61613}]}, %% Listen for SSL connections on a specific port.
%% {ssl_listeners, [61614]}, %% Number of Erlang processes that will accept connections for the TCP
%% and SSL listeners.
%%
%% {num_tcp_acceptors, 10},
%% {num_ssl_acceptors, 1}, %% Additional SSL options %% Extract a name from the client's certificate when using SSL.
%%
%% {ssl_cert_login, true}, %% Set a default user name and password. This is used as the default login
%% whenever a CONNECT frame omits the login and passcode headers.
%%
%% Please note that setting this will allow clients to connect without
%% authenticating!
%%
%% {default_user, [{login, "guest"},
%% {passcode, "guest"}]}, %% If a default user is configured, or you have configured use SSL client
%% certificate based authentication, you can choose to allow clients to
%% omit the CONNECT frame entirely. If set to true, the client is
%% automatically connected as the default user or user supplied in the
%% SSL certificate whenever the first frame sent on a session is not a
%% CONNECT frame.
%%
%% {implicit_connect, true}
]}, %% ----------------------------------------------------------------------------
%% RabbitMQ MQTT Adapter
%%
%% See https://github.com/rabbitmq/rabbitmq-mqtt/blob/stable/README.md
%% for details
%% ---------------------------------------------------------------------------- {rabbitmq_mqtt,
[%% Set the default user name and password. Will be used as the default login
%% if a connecting client provides no other login details.
%%
%% Please note that setting this will allow clients to connect without
%% authenticating!
%%
%% {default_user, <<"guest">>},
%% {default_pass, <<"guest">>}, %% Enable anonymous access. If this is set to false, clients MUST provide
%% login information in order to connect. See the default_user/default_pass
%% configuration elements for managing logins without authentication.
%%
%% {allow_anonymous, true}, %% If you have multiple chosts, specify the one to which the
%% adapter connects.
%%
%% {vhost, <<"/">>}, %% Specify the exchange to which messages from MQTT clients are published.
%%
%% {exchange, <<"amq.topic">>}, %% Specify TTL (time to live) to control the lifetime of non-clean sessions.
%%
%% {subscription_ttl, 1800000}, %% Set the prefetch count (governing the maximum number of unacknowledged
%% messages that will be delivered).
%%
%% {prefetch, 10}, %% TCP/SSL Configuration (as per the broker configuration).
%%
%% {tcp_listeners, [1883]},
%% {ssl_listeners, []}, %% Number of Erlang processes that will accept connections for the TCP
%% and SSL listeners.
%%
%% {num_tcp_acceptors, 10},
%% {num_ssl_acceptors, 1}, %% TCP/Socket options (as per the broker configuration).
%%
%% {tcp_listen_options, [{backlog, 128},
%% {nodelay, true}]}
]}, %% ----------------------------------------------------------------------------
%% RabbitMQ AMQP 1.0 Support
%%
%% See https://github.com/rabbitmq/rabbitmq-amqp1.0/blob/stable/README.md
%% for details
%% ---------------------------------------------------------------------------- {rabbitmq_amqp1_0,
[%% Connections that are not authenticated with SASL will connect as this
%% account. See the README for more information.
%%
%% Please note that setting this will allow clients to connect without
%% authenticating!
%%
%% {default_user, "guest"}, %% Enable protocol strict mode. See the README for more information.
%%
%% {protocol_strict_mode, false}
]}, %% ----------------------------------------------------------------------------
%% RabbitMQ LDAP Plugin
%%
%% See http://www.rabbitmq.com/ldap.html for details.
%%
%% ---------------------------------------------------------------------------- {rabbitmq_auth_backend_ldap,
[%%
%% Connecting to the LDAP server(s)
%% ================================
%% %% Specify servers to bind to. You *must* set this in order for the plugin
%% to work properly.
%%
%% {servers, ["your-server-name-goes-here"]}, %% Connect to the LDAP server using SSL
%%
%% {use_ssl, false}, %% Specify the LDAP port to connect to
%%
%% {port, 389}, %% LDAP connection timeout, in milliseconds or 'infinity'
%%
%% {timeout, infinity}, %% Enable logging of LDAP queries.
%% One of
%% - false (no logging is performed)
%% - true (verbose logging of the logic used by the plugin)
%% - network (as true, but additionally logs LDAP network traffic)
%%
%% Defaults to false.
%%
%% {log, false}, %%
%% Authentication
%% ==============
%% %% Pattern to convert the username given through AMQP to a DN before
%% binding
%%
%% {user_dn_pattern, "cn=${username},ou=People,dc=example,dc=com"}, %% Alternatively, you can convert a username to a Distinguished
%% Name via an LDAP lookup after binding. See the documentation for
%% full details. %% When converting a username to a dn via a lookup, set these to
%% the name of the attribute that represents the user name, and the
%% base DN for the lookup query.
%%
%% {dn_lookup_attribute, "userPrincipalName"},
%% {dn_lookup_base, "DC=gopivotal,DC=com"}, %% Controls how to bind for authorisation queries and also to
%% retrieve the details of users logging in without presenting a
%% password (e.g., SASL EXTERNAL).
%% One of
%% - as_user (to bind as the authenticated user - requires a password)
%% - anon (to bind anonymously)
%% - {UserDN, Password} (to bind with a specified user name and password)
%%
%% Defaults to 'as_user'.
%%
%% {other_bind, as_user}, %%
%% Authorisation
%% =============
%% %% The LDAP plugin can perform a variety of queries against your
%% LDAP server to determine questions of authorisation. See
%% http://www.rabbitmq.com/ldap.html#authorisation for more
%% information. %% Set the query to use when determining vhost access
%%
%% {vhost_access_query, {in_group,
%% "ou=${vhost}-users,ou=vhosts,dc=example,dc=com"}}, %% Set the query to use when determining resource (e.g., queue) access
%%
%% {resource_access_query, {constant, true}}, %% Set queries to determine which tags a user has
%%
%% {tag_queries, []}
]}
].