RabbitMq:需要帮助配置身份验证缓存插件“rabbit_auth_backend_cache”

RabbitMq:需要帮助配置身份验证缓存插件“rabbit_auth_backend_cache”

我正在尝试建立一个新的 RabbitMq 服务器(版本 3.7.23,Erlang 版本 22.2.3),并且我已设法使 LDAP 身份验证正常工作。不幸的是,身份验证似乎相当慢,所以我的监控工具在检查活动端点时偶尔会报告错误,并且 UI 偶尔会在浏览应用程序时显示红色的“无法连接到服务器”错误,该错误最终会消失。

在研究我的问题时,似乎rabbit_auth_backend_cache插件应该可以帮助解决这个问题。我实现了缓存,但它似乎不起作用。rabbit 日志仍然显示 Rabbitmq 尝试为每个请求连接到 LDAP,我没有看到任何可以解释缓存发生了什么的错误。

这是我的配置:

[
  {kernel, [

  ]},
  {rabbitmq_management, [
    {listener, [
                {port, 15672}
    ]}
  ]},
  {rabbit, [
    {auth_backends, [rabbit_auth_backend_cache,rabbit_auth_backend_ldap]},
    {cluster_partition_handling,autoheal},

{tcp_listeners, [5672]},

    {tcp_listen_options, [binary,
                          {packet, raw},
                          {reuseaddr, true},
                          {backlog, 128},
                          {nodelay, true},
                          {exit_on_close, false},
                          {keepalive, false},
                          {linger, {true,0}}]},

    {log_levels, [{ connection, info }]},
    {disk_free_limit, {mem_relative, 1.5}},
    {vm_memory_high_watermark, 0.66},

    {default_user, <<"guest">>},
    {default_pass, <<"guest">>},
    {heartbeat, 60}
  ]}
    ,{rabbitmq_auth_backend_ldap, [
...omitted because it contains sensitive data...
] }}
    ]}
        ,{rabbitmq_auth_backend_cache, [{cached_backend, rabbit_auth_backend_ldap}, {cache_ttl, 5000}]}
        ,{rabbit_auth_backend_ldap, []}
].


以下是我在启动过程中在日志中看到的内容:

2020-08-21 15:37:52.239 [info] <0.8.0> Server startup complete; 10 plugins started.
 * rabbitmq_auth_backend_ldap
 * rabbitmq_shovel_management
 * rabbitmq_shovel
 * rabbitmq_federation_management
 * rabbitmq_top
 * rabbitmq_management
 * rabbitmq_web_dispatch
 * rabbitmq_management_agent
 * rabbitmq_federation
 * rabbitmq_auth_backend_cache

关机时

2020-08-21 15:37:44.095 [info] <0.43.0> Application cowboy exited with reason: stopped
2020-08-21 15:37:44.095 [info] <0.11984.0> Stopping application 'cowlib'
2020-08-21 15:37:44.095 [info] <0.43.0> Application cowlib exited with reason: stopped
2020-08-21 15:37:44.095 [info] <0.11984.0> Stopping application 'rabbitmq_auth_backend_ldap'
2020-08-21 15:37:44.096 [info] <0.43.0> Application rabbitmq_auth_backend_ldap exited with reason: stopped
2020-08-21 15:37:44.096 [info] <0.11984.0> Stopping application 'rabbitmq_management_agent'
2020-08-21 15:37:44.098 [info] <0.43.0> Application rabbitmq_management_agent exited with reason: stopped
2020-08-21 15:37:44.098 [info] <0.11984.0> Stopping application 'rabbitmq_auth_backend_cache'
2020-08-21 15:37:44.099 [info] <0.43.0> Application rabbitmq_auth_backend_cache exited with reason: stopped
2020-08-21 15:37:44.099 [info] <0.11984.0> Stopping application 'rabbit'

谢谢,
亚历克斯

答案1

@Alexander Brehm 您是如何得出缓存无法正常工作的结论的?如果您偶尔遇到连接问题,这可能是由多种其他因素造成的?

您的 ldap 服务器是 VIP 服务器还是单服务器?您是否尝试过增加 cache_ttl。您的应用程序是 http,您是否尝试过为 ldap 使用 http 后端?

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