配置为 dockerized postgres 时 pgbouncer 无法启动

问题描述

我是第一次尝试配置 pgbouncer。

我的 postgres 数据库作为容器运行（使用端口 5011）

我的操作系统是 debian 10。

我使用 apt-install 来安装 pgbouncer：

sudo apt-get install pgbouncer

然后可以看到 pgbouncer 状态正常：

# sudo systemctl status pgbouncer
● pgbouncer.service - LSB: start pgbouncer
   Loaded: loaded (/etc/init.d/pgbouncer; generated)
   Active: active (running) since Wed 2021-05-26 16:15:49 IDT; 11min ago
     Docs: man:systemd-sysv-generator(8)
    Tasks: 2 (limit: 4915)
   Memory: 2.4M
   CGroup: /system.slice/pgbouncer.service
           └─4392 /usr/sbin/pgbouncer -d /etc/pgbouncer/pgbouncer.ini

我的数据库名为 mydb，postgres 容器运行在 5011 端口，所以我这样配置 /etc/pgbouncer/pgbouncer.ini：

[databases]
octopus-bouncer = host=10.1.1.1 port=5011 user=dbauser dbname=mydb

;; Configuration section
[pgbouncer]
auth_file = userlist.txt

; IP address or * which means all IPs
listen_addr = *
listen_port = 6432

; any,trust,plain,crypt,md5,cert,hba,pam
auth_type = md5
auth_file = /etc/pgbouncer/userlist.txt

; total number of clients that can connect
max_client_conn = 100

; default pool size.  20 is good number when transaction pooling
; is in use,in session pooling it needs to be the number of
; max clients you want to handle at any moment
default_pool_size = 20

我终于把我的用户放到了 /etc/pgbouncer/userlist.txt：

"dbauser" "mypassword"

然后我重新启动了 pgbouncer - 但失败了：

# sudo systemctl restart pgbouncer
Job for pgbouncer.service Failed because the control process exited with error code.
See "systemctl status pgbouncer.service" and "journalctl -xe" for details.

状态仅显示：

# sudo systemctl status pgbouncer
● pgbouncer.service - LSB: start pgbouncer
   Loaded: loaded (/etc/init.d/pgbouncer; generated)
   Active: Failed (Result: exit-code) since Wed 2021-05-26 17:04:00 IDT; 2min 3s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 28111 ExecStart=/etc/init.d/pgbouncer start (code=exited,status=1/FAILURE)

May 26 17:04:00 Octopus systemd[1]: Starting LSB: start pgbouncer...
May 26 17:04:00 Octopus pgbouncer[28111]: Starting PgBouncer: pgbouncer Failed!
May 26 17:04:00 Octopus systemd[1]: pgbouncer.service: Control process exited,code=exited,status=1/FAILURE
May 26 17:04:00 Octopus systemd[1]: pgbouncer.service: Failed with result 'exit-code'.
May 26 17:04:00 Octopus systemd[1]: Failed to start LSB: start pgbouncer.

我错过了什么吗？ 如何调试问题？

解决方法

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