【问题标题】:nsq cannot consume message by connecting to nsqlookupdnsq 无法通过连接到 nsqlookupd 来消费消息
【发布时间】:2018-07-10 06:08:39
【问题描述】:

我尝试使用docker-compose运行nsq,docker-compose.yml如下:

version: '3'
services:
  nsqlookupd:
    image: nsqio/nsq
    command: /nsqlookupd
    ports:
      - "4160:4160"
      - "4161:4161"
  nsqd:
    image: nsqio/nsq
    command: /nsqd --lookupd-tcp-address=nsqlookupd:4160
    depends_on:
      - nsqlookupd
    ports:
      - "4150:4150"
      - "4151:4151"
  nsqadmin:
    image: nsqio/nsq
    command: /nsqadmin --lookupd-http-address=nsqlookupd:4161
    depends_on:
      - nsqlookupd
    ports:
      - "4171:4171"

我正在使用nsq客户端go-nsq生产和消费消息,消息可以直接连接nsqd消费,但不能通过连接nsqlookupd消费:

consumer.ConnectToNSQD("127.0.0.1:4150")  # success (output the consumed messages)

consumer.ConnectToNSQLookupd("127.0.0.1:4161")   # failed

2018/01/31 16:39:12 ERR    1 [test/liu] (967fcc2c88ae:4150) error connecting to nsqd - dial tcp: i/o timeout

我可以连接到 nsqlookup 实例:

➜  test_nsq curl http://127.0.0.1:4161/ping
OK%
➜  test_nsq curl http://127.0.0.1:4161/nodes
{"producers":[{"remote_address":"172.22.0.3:59988","hostname":"967fcc2c88ae","broadcast_address":"967fcc2c88ae","tcp_port":4150,"http_port":4151,"version":"1.0.0-compat","tombstones":[false],"topics":["test"]}]}%

源码链接:

https://gist.github.com/liuzxc/1baf85cff7db8dee8c26b8707fc48799

环境:

OS: Mac EI Capitan 10.11.6
go version: 1.9.2
nsq: 1.0.0-compat(latest)

对此有什么想法吗?

【问题讨论】:

  • consumer.ConnectToNSQLookupd返回错误,可以提供吗?
  • @leafbebop 我打印 go-nsq 错误消息,请查看我的更新
  • 我找到了解决办法,应该为nsqd设置-broadcast-address=127.0.0.1

标签: docker go docker-compose nsq go-nsq


【解决方案1】:

我输出了go-nsq日志,然后找到根本原因,应该为nsqd命令添加-broadcast-address=127.0.0.1,如果没有,nsqd会将其主机名注册到nsqlookupd,客户端无法解析。

【讨论】:

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