Memory rabbitmq上二进制内存使用量增长的原因

如何找到二进制内存使用增长的原因（取决于连接数）

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我使用rabbitmqctl eval'[garbage_collect（p）| | p我相信您的实现是错误的。我在一个实时站点上使用RabbitMQ进行实时通知，它工作没有任何问题。我有一个高达3500的并发客户端，但一个8GB RAM实例工作得足够好

那你到底要做什么

您尚未指定您的用例。但根据rabbitmq文档，只有当您有大量未送达的消息时，内存才会增长。大量未送达的消息可能会导致磁盘空间/ram空间增加，具体取决于客户端与您的连接方式

如果您的每个用户都有一个代理，这是非常昂贵的。相反，如果您的用户将在多个终端（例如，电话和网络）同时接收相同的消息，则每个用户都有一个exchange。在这种情况下，请使用扇出exchange并让用户订阅它。当exchange中的消息为零时，始终启用自动删除标志。使用非peR稳定的交易；但减少经纪人的交易

如果您确定一个用户将只在一个设备上连接，而不超过该设备，则不需要扇出交换，而是为每个用户构建一个队列。不过，请启用自动删除标志

保持较少的代理数量，并通过交易所或队列处理请求是有效的

如果适合您的用例，还可以使用消息到期。假设您使用RabbitMQ向您的用户发送通知。但是，您将把它们写入数据库并发出通知，您可以通过RMQ发送通知。如果用户不在线，可能会持续约10分钟或更长时间，到期是一个不错的选择。因为它是虚拟消息，而不是持久消息。他将从数据库中读取它

注意：如果您解释您的用例，我可以详细帮助您。

阅读以下内容以了解更多信息：

如前所述,

所有二进制使用都是由于队列中的消息

最好的方法是使用非持久队列和自动到期消息

请注意，“内存中”和“持久”消息在这里不是反义词： 非持久性消息可以在内存压力和 持久消息也可以在内存中

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这就解释了您的问题！

您使用的是哪个版本？@gabriele Cluster:rabbit@Broker1（更改）RabbitMQ 3.6.9，Erlang 17.3如果依赖于连接，请尝试减少发送和接收TCP缓冲区：请参阅

TCP缓冲区大小

部分您的用例是什么？@honarkhah您是如何解决的？我使用mqtt协议（），我也用这个通知，在我的情况下，你知道。我没有任何未送达的消息，你可以看到上面的统计信息。那一定是因为我想象中的代理。你能试试我上面说的吗？用交易所替换代理吗！用交易所替换代理是什么意思，我有两个代理用于HA，我在你的帐户中有特定的用户交换屏幕截图，为什么有很多代理？可能我被误解了吗？我有2个代理（用于高可用性）和HA代理用于它们之间的负载平衡，一些用户连接到broker1，一些用户连接到broker2，当我在队列中没有任何消息时，请检查binart问题，

root@Broker1:~# /usr/sbin/rabbitmqctl status | grep binary    
  {binary,6709401976},   

root@Broker1:~# free -m   
           total       used       free     shared    buffers     cached
Mem:         16084       4147      11937         22        161       1550
-/+ buffers/cache:       2435      13649
Swap:         4183          0       4183

root@Broker2:~# /usr/sbin/rabbitmqctl status 


 Status of node rabbit@Broker2 ...
[{pid,515},
  {running_applications,
 [{rabbitmq_web_mqtt,"RabbitMQ MQTT-over-WebSockets adapter","3.6.9"},
  {rabbitmq_mqtt,"RabbitMQ MQTT Adapter","3.6.9"},
  {rabbitmq_web_stomp,"Rabbit WEB-STOMP - WebSockets to Stomp adapter",
      "3.6.9"},
  {rabbitmq_stomp,"RabbitMQ STOMP plugin","3.6.9"},
  {rabbitmq_management,"RabbitMQ Management Console","3.6.9"},
  {rabbitmq_web_dispatch,"RabbitMQ Web Dispatcher","3.6.9"},
  {rabbitmq_management_agent,"RabbitMQ Management Agent","3.6.9"},
  {rabbit,"RabbitMQ","3.6.9"},
  {os_mon,"CPO  CXC 138 46","2.3"},
  {cowboy,"Small, fast, modular HTTP server.","1.0.4"},
  {ranch,"Socket acceptor pool for TCP protocols.","1.3.0"},
  {ssl,"Erlang/OTP SSL application","5.3.6"},
  {public_key,"Public key infrastructure","0.22.1"},
  {cowlib,"Support library for manipulating Web protocols.","1.0.2"},
  {crypto,"CRYPTO","3.4.1"},
  {amqp_client,"RabbitMQ AMQP Client","3.6.9"},
  {rabbit_common,
      "Modules shared by rabbitmq-server and rabbitmq-erlang-client",
      "3.6.9"},
  {inets,"INETS  CXC 138 49","5.10.3"},
  {mnesia,"MNESIA  CXC 138 12","4.12.3"},
  {compiler,"ERTS  CXC 138 10","5.0.2"},
  {sockjs,"SockJS","0.3.4"},
  {xmerl,"XML parser","1.3.7"},
  {syntax_tools,"Syntax tools","1.6.16"},
  {asn1,"The Erlang ASN1 compiler version 3.0.2","3.0.2"},
  {sasl,"SASL  CXC 138 11","2.4.1"},
  {stdlib,"ERTS  CXC 138 10","2.2"},
  {kernel,"ERTS  CXC 138 10","3.0.3"}]},
 {os,{unix,linux}},
 {erlang_version,
 "Erlang/OTP 17 [erts-6.2] [source] [64-bit] [smp:10:10] [async-threads:160] [kernel-poll:true]\n"},
 {memory,
 [{total,3874499056},
  {connection_readers,598416},
  {connection_writers,139368},
  {connection_channels,774752},
  {connection_other,176069624},
  {queue_procs,36524016},
  {queue_slave_procs,0},
  {plugins,80184008},
  {other_proc,0},
  {mnesia,48042392},
  {metrics,7245632},
  {mgmt_db,74517952},
  {msg_index,1751384},
  {other_ets,14801208},
  {binary,3379246384},
  {code,28040419},
  {atom,1000601},
  {other_system,33438764}]},
 {alarms,[]},
 {listeners,
 [{clustering,2000,"::"},
  {amqp,5672,"::"},
  {http,15672,"::"},
  {stomp,61613,"::"},
  {'http/web-stomp',15674,"::"},
  {mqtt,1883,"::"},
  {'http/web-mqtt',15675,"::"}]},
 {vm_memory_high_watermark,{absolute,"12288MiB"}},
{vm_memory_limit,12884901888},
{disk_free_limit,50000000},
{disk_free,91027542016},
{file_descriptors,
 [{total_limit,65435},
  {total_used,9214},
  {sockets_limit,58889},
  {sockets_used,9002}]},
 {processes,[{limit,1048576},{used,42726}]},
 {run_queue,0},
 {uptime,82689},
 {kernel,{net_ticktime,60}}
]

             total       used       free     shared    buffers     cached
Mem:         16084       4517      11567         27        160       2487
-/+ buffers/cache:       1869      14215
Swap:         4189          0       4189

[
    {log_levels,       [{connection, none},{channel,none}]},
    {file_descriptors, [{total_limit, 65000}]},
    {kernel, [
            {log_levels,       [{connection, none},{channel,none}]},
            {inet_dist_listen_min, 2000},
            {inet_dist_listen_max, 65000}
    ]},
    {rabbit, [
            {loopback_users, []},
            {vm_memory_high_watermark, {absolute, "12288MiB"}},
            {vm_memory_high_watermark_paging_ratio, 0.60},
            {tcp_listeners,    [5672]},
            {log_levels,       [{connection, none},{channel,none}]},
            {heartbeat, 10000}
    ]},
    {rabbitmq_mqtt, [
            {log_levels,       [{connection, none},{channel,none}]},
            {default_user,     <<"guest">>},
            {default_pass,     <<"guest">>},
            {allow_anonymous,  false},
            {vhost,            <<"test">>},
            {exchange,         <<"amq.topic">>},
            {subscription_ttl, 180000},
            {prefetch,         10},
            {tcp_listeners,    [1883]},
            {tcp_listen_options, [
                    binary,
                    {packet,    raw},
                    {reuseaddr, false},
                    {backlog,   8192},
                    {nodelay,   true}
            ]}
    ]},
    {rabbitmq_stomp, [
            {default_vhost, <<"test">>},
            {exchange,         <<"amq.topic">>},
            {tcp_listen_options, [
                    {backlog,   128},
                    {nodelay,   true}
            ]}
    ]}
].