emqx參數調整以及遇到的問題

emqx參數調整以及遇到的問題

1. 連接數超過1000出現服務掛掉： 解決辦法最大句柄數問題： ulimit -u 100000 調整

2. emqx.conf 調整，其中涉及到zone.conf 和listener.conf

   node.data_dir = /opt/emqx/data
   node.async_threads = 64
   node.process_limit = 2048000
   node.max_ports = 1024000
   node.dist_buffer_size = 8MB
   node.max_ets_tables = 256000
   node.fullsweep_after = 1000
   node.crash_dump = /opt/emqx/log/crash.dump
   node.dist_net_ticktime = 60
   rpc.tcp_server_port = 5369
   rpc.tcp_client_port = 5369
   log.dir = /opt/emqx/log
   log.rotation.size = 50MB
   log.rotation.count = 15
   allow_anonymous = false
   acl_file = /opt/emqx/etc/acl.conf
   mqtt.max_packet_size = 100MB
   mqtt.max_topic_alias = 0
   zone.external.force_gc_policy = 1000|50MB
   zone.external.force_shutdown_policy = 1000|800MB
   zone.external.max_packet_size = 100MB
   zone.external.retry_interval = 20s
   zone.external.mqueue_store_qos0 = false
   zone.internal.allow_anonymous = false
   listener.ssl.external.keyfile = /opt/emqx/etc/certs/key.pem
   listener.ssl.external.certfile = /opt/emqx/etc/certs/cert.pem
   listener.wss.external.keyfile = /opt/emqx/etc/certs/key.pem
   listener.wss.external.certfile = /opt/emqx/etc/certs/cert.pem
   plugins.etc_dir = /opt/emqx/etc/plugins/
   plugins.loaded_file = /opt/emqx/data/loaded_plugins
   plugins.expand_plugins_dir = /opt/emqx/etc/plugins/
   sysmon.long_gc = 5m
   
   

3. 申請emqx后生升級license，把emqx.lic 放到 /etc/emqx下