【Postgresql】pg掉电后无法重启

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机房断电后重启pg数据库，报如下错误：

< 2019-01-01 22:42:59.240 EST >LOG:  database system was interrupted while in recovery at 2019-01-01 22:00:58 EST
< 2019-01-01 22:42:59.240 EST >HINT:  This probably means that some data is corrupted and you will have to use the last backup for recovery.
< 2019-01-01 22:42:59.241 EST >LOG:  database system was not properly shut down; automatic recovery in progress
< 2019-01-01 22:42:59.333 EST >PANIC:  unexpected pageaddr 26EA/46000000 in log segment 00000001000026EA00000017, offset 0
< 2019-01-01 22:42:59.333 EST >LOG:  startup process (PID 88586) was terminated by signal 6: Aborted
< 2019-01-01 22:42:59.333 EST >LOG:  aborting startup due to startup process failure

修复方法：

切换到bin目录下：
cd /usr/pgsql-9.3/bin

使用pg_resetxlog命令修复日志：（/var/lib/pgsql/9.3/data为pg_data的目录）
pg_resetxlog -f /var/lib/pgsql/9.3/data


重启数据库：
pg_ctl start