Question

我尝试在postgresql.conf中取消注释'unix_socket_directories ='/ var / run / postgresql'。

但是这样做之后，当我尝试重新启动postgresql时，我收到了

  Job for postgresql.service failed because the control process exited with error code. See 
  "systemctl status postgresql.service" and "journalctl -xe" for details.

寻找journalctl，我看到了：

LOG:  could not bind Unix socket: Address already in use
HINT:  Is another postmaster already running on port 5432? If not, remove socket file 
"/var/run/postgresql/.s.PGSQL...and retry.
: WARNING:  could not create Unix-domain socket in directory "/var/run/postgresql"

完整堆栈：

 Loaded: loaded (/usr/lib/systemd/system/postgresql.service; enabled; 
 vendor preset: disabled)
  Active: failed (Result: exit-code) since Ср 2020-01-29 13:39:52 MSK; 
 27s ago
  Process: 2937 ExecStop=/usr/bin/pg_ctl stop -D ${PGDATA} -s -m fast 
 (code=exited, status=1/FAILURE)
  Process: 2550 ExecStart=/usr/bin/pg_ctl start -D ${PGDATA} -s -o -p 
 ${PGPORT} -w -t 300 (code=exited, status=0/SUCCESS)
  Process: 2544 ExecStartPre=/usr/bin/postgresql-check-db-dir ${PGDATA} 
 (code=exited, status=0/SUCCESS)
 Main PID: 2554 (code=killed, signal=KILL)

   plesk.iline.pro systemd[1]: Starting PostgreSQL database server...
   plesk.iline.pro pg_ctl[2550]: LOG:  could not bind Unix socket: 
   Address already in use
   plesk.iline.pro pg_ctl[2550]: HINT:  Is another postmaster already 
   running on port 5432? If not, remove socket file 
   "/var/run/postgresql/.s.PGSQL...and retry.
    plesk.iline.pro pg_ctl[2550]: WARNING:  could not create Unix- 
    domain socket in directory "/var/run/postgresql"
    plesk.iline.pro systemd[1]: Started PostgreSQL database server.
    2 plesk.iline.pro systemd[1]: postgresql.service: main process 
    exited, code=killed, status=9/KILL
    plesk.iline.pro pg_ctl[2937]: pg_ctl: could not send stop signal 
    (PID: 2554): No such process
    plesk.iline.pro systemd[1]: postgresql.service: control process 
    exited, code=exited status=1
    plesk.iline.pro systemd[1]: Unit postgresql.service entered failed 
    state.
    plesk.iline.pro systemd[1]: postgresql.service failed.
    Hint: Some lines were ellipsized, use -l to show in full.

Answer 1

很可能在同一端口上还有另一台PostgreSQL服务器运行。

您应该执行PostgreSQL建议的操作：

ls -l /var/run/postgresql/.s.PGSQL.5432

应该有一个套接字文件。

然后，以用户root的身份查看端口上是否有PostgreSQL进程在监听：

sudo fuser /var/run/postgresql/.s.PGSQL.5432

如果有结果，则实际上是在端口5432上运行了另一个PostgreSQL服务器。要么停止该服务器，要么为群集选择其他端口。

如果没有结果，则插座可能遗留了下来。删除它，然后重试。

无法在目录“ / var / run / postgresql”中创建Unix域套接字

1 个答案: