centos postgresql启动失败

service postgresql start

只有[faild]，没提示错误信息，查看一下日志

 less /var/lib/pgsql/pgstartup.log

还好日志很详细

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 database encoding has accordingly been set to UTF8.

fixing permissions on existing directory /var/lib/pgsql/data ... ok
creating directory /var/lib/pgsql/data/global ... ok
creating directory /var/lib/pgsql/data/pg_xlog ... ok
creating directory /var/lib/pgsql/data/pg_xlog/archive_status ... ok
creating directory /var/lib/pgsql/data/pg_clog ... ok
creating directory /var/lib/pgsql/data/pg_subtrans ... ok
creating directory /var/lib/pgsql/data/pg_twophase ... ok
creating directory /var/lib/pgsql/data/pg_multixact/members ... ok
creating directory /var/lib/pgsql/data/pg_multixact/offsets ... ok
creating directory /var/lib/pgsql/data/base ... ok
creating directory /var/lib/pgsql/data/base/1 ... ok
creating directory /var/lib/pgsql/data/pg_tblspc ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 1000
creating configuration files ... ok
creating template1 database in /var/lib/pgsql/data/base/1 ... ok
initializing pg_authid ... ok
enabling unlimited row size for system tables ... ok
initializing dependencies ... ok
creating system views ... ok
loading pg_description ... ok
creating conversions ... ok
setting privileges on built-in objects ... ok
creating information schema ... ok
vacuuming database template1 ... ok
copying template1 to template0 ... ok
copying template1 to postgres ... ok

Success. You can now start the database server using:

    /usr/bin/postmaster -D /var/lib/pgsql/data
or
    /usr/bin/pg_ctl -D /var/lib/pgsql/data -l logfile start

LOG:  logger shutting down
FATAL:  XX000: failed to initialize lc_messages to ""
LOCATION:  InitializeGUCOptions, guc.c:2678

lc错误和本地化有关。。初始化postgresql用的是en_US.UTF8,查看环境变量看看

#env | grep -e LANG -e LC_ALL
LC_ALL=en
LANG=en

找到原因，修改/etc/profile加上

export LC_ALL=en_US.UTF8
export LANG=en_US.UTF8

然后

#su postgres
$/usr/bin/pg_ctl -D /var/lib/pgsql/data -l logfile start
$exit

#service postgresql start

顺利启动