无法启动 postgresql.service? [英] Unable to start postgresql.service?
问题描述
我使用的是 arch linux (4.8.13-1-ARCH).我正在尝试按照此处的说明设置 PostgreSQL.
I'm using arch linux (4.8.13-1-ARCH). I'm trying to set up PostgreSQL as instructed here.
执行后
[postgres@BitBox ~]$ initdb --locale $LANG -E UTF8 -D '/var/lib/postgres/data'
The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.
The database cluster will be initialized with locale "en_US.UTF-8".
The default text search configuration will be set to "english".
Data page checksums are disabled.
fixing permissions on existing directory /var/lib/postgres/data ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting dynamic shared memory implementation ... posix
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ok
syncing data to disk ... ok
WARNING: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the option -A, or
--auth-local and --auth-host, the next time you run initdb.
Success. You can now start the database server using:
pg_ctl -D /var/lib/postgres/data -l logfile start
成功地,我使用退出命令返回到我的普通用户.
successfully, I returned to the my regular user using exit command.
[postgres@BitBox ~]$ exit
logout
然后,在尝试启动 postgresql.service 时,出现以下错误:
Then, while trying to start postgresql.service, I got the following error:
[code_master5@BitBox ~]$ sudo systemctl start postgresql.service
Failed to start postgresql.service: Unit postgresql.service not found.
我什至没有得到服务的状态:
I'm not even getting the status of the service:
[code_master5@BitBox ~]$ sudo systemctl status postgresql.service
Unit postgresql.service could not be found.
我被卡住了!
推荐答案
最后,我想出了这个.已经存在一个文件
Finally, I figured this one out. There was already a file present
/usr/lib/systemd/system/postgresql-9.6.service
所以,可能是因为这个文件的存在,我无法启动 postgresql.service.然后我尝试启动 postgresql-9.6.service 如下:
So, may be due to the presence of this file, I was not able to start postgresql.service. Then I tried to start postgresql-9.6.service as follows:
[code_master5@BitBox ~]$ sudo systemctl start postgresql-9.6.service
Failed to start postgresql-9.6.service: Unit postgresql-9.6.service not found.
而且,正如您所看到的输出,它再次失败.
And, as you can see the output, again it failed.
我只是使用 sudo 删除了该文件,因为我认为可能是由于该文件的存在,相关程序没有创建 postgresql.service 文件.然后我重新启动了系统.从那以后它运行良好,你可以看到下面的输出:
I simply deleted the file using sudo as I thought may be postgresql.service file is not being created by relevant program due to the presence of this file. Then I restarted the system. It's working fine since then, as you can see the output below:
[code_master5@BitBox ~]$ sudo systemctl status postgresql.service
[sudo] password for code_master5:
● postgresql.service - PostgreSQL database server
Loaded: loaded (/usr/lib/systemd/system/postgresql.service; enabled; vendor p
Active: active (running) since Sat 2017-01-28 09:31:30 IST; 7h ago
Main PID: 342 (postgres)
Tasks: 6 (limit: 4915)
CGroup: /system.slice/postgresql.service
├─342 /usr/bin/postgres -D /var/lib/postgres/data
├─358 postgres: checkpointer process
├─359 postgres: writer process
├─360 postgres: wal writer process
├─361 postgres: autovacuum launcher process
└─362 postgres: stats collector process
Jan 28 09:31:26 BitBox systemd[1]: Starting PostgreSQL database server...
Jan 28 09:31:28 BitBox postgres[340]: FATAL: the database system is starting up
Jan 28 09:31:28 BitBox postgres[340]: LOG: database system was shut down at 201
Jan 28 09:31:29 BitBox postgres[340]: FATAL: the database system is starting up
Jan 28 09:31:29 BitBox postgres[340]: LOG: MultiXact member wraparound protecti
Jan 28 09:31:29 BitBox postgres[340]: LOG: database system is ready to accept c
Jan 28 09:31:29 BitBox postgres[340]: LOG: autovacuum launcher started
Jan 28 09:31:30 BitBox systemd[1]: Started PostgreSQL database server.
我当然想警告所有遇到同样问题的人.请自行承担我所做的一切.因为这些是系统文件.搞乱这些会毁了你的周末!
I would surely like to warn all those having same problem. Please do whatever I did at your own risk. Since these are system files. Messing with these can spoil your weekend!
不过我还是有点困惑.欢迎解释!
I am still a bit confused on this though. Explanations are welcome!
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