连接psql时出现问题

Question

我按照http://xadmin.info/?p=284上的说明安装了postgresql

# pg_ctl -D /var/lib/pgsql/data -l pglog.log start
server starting
postgres@linux-p0pl:~> psql
psql: could not connect to server: No such file or directory
    Is the server running locally and accepting
    connections on
 Unix domain socket "/tmp/.s.PGSQL.5432"?

我不知道为什么我在服务器启动时出现此错误...有人可以请帮助.

我的pglog.log文件显示以下输出:

2013-02-06 19:43:39 GMT   FATAL:  lock file "postmaster.pid" already exists
2013-02-06 19:43:39 GMT   HINT:  Is another postmaster (PID 23971) running in data directory "/var/lib/pgsql/data"?
2013-02-06 19:44:02 GMT   FATAL:  lock file "postmaster.pid" already exists
2013-02-06 19:44:02 GMT   HINT:  Is another postmaster (PID 23971) running in data directory "/var/lib/pgsql/data"?
2013-04-24 12:43:29 GMT   FATAL:  data directory "/var/lib/pgsql/data" has group or world access
2013-04-24 12:43:29 GMT   DETAIL:  Permissions should be u=rwx (0700).
2013-04-24 12:44:07 GMT   FATAL:  data directory "/var/lib/pgsql/data" has group or world access
2013-04-24 12:44:07 GMT   DETAIL:  Permissions should be u=rwx (0700).
2013-04-24 12:57:02 GMT   FATAL:  data directory "/var/lib/pgsql/data" has group or world access
2013-04-24 12:57:02 GMT   DETAIL:  Permissions should be u=rwx (0700).
2013-04-24 12:57:40 GMT   FATAL:  data directory "/var/lib/pgsql/data" has group or world access
2013-04-24 12:57:40 GMT   DETAIL:  Permissions should be u=rwx (0700).

ps -ef | grep postgres

root     21659 21591  0 19:14 pts/0    00:00:00 grep --color=auto postgres

Answer 1

权限和所有权/var/lib/pgsql/data应为:

# ll -d /var/lib/pgsql/data
drwx------. 15 postgres postgres 4096 Apr 24 10:27 /var/lib/pgsql/data

如果他们不是root用户:

# chmod -R 700 /var/lib/pgsql/data
# chown -R postgres /var/lib/pgsql/data

Answer 2

检查该pglog.log文件以确保服务器确实启动且没有错误。鉴于该错误，它似乎没有正常启动。