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我在兩臺服務器上使用postgres版本9.3.2，一臺主服務器，一臺主服務器。由於wal錯誤，Postgres複製不能啓動
我設置複製如下： -
在主： -
sudo -u postgres psql -c "CREATE USER replicator REPLICATION LOGIN ENCRYPTED PASSWORD 'FOO’;"
編輯postgresql.conf中
listen_address = '*'
wal_level = hot_standby
max_wal_senders = 32
checkpoint_segments = 8
wal_keep_segments = 100
編輯pg_hba.conf的
hostssl replication replicator <SLAVE IP>/32 md5
在奴隸： -
編輯postgresql.conf中
wal_level = hot_standby
max_wal_senders = 3
checkpoint_segments = 8
wal_keep_segments = 8
hot_standby = on
運行
sudo service postgresql stop
sudo -u postgres rm -rf /var/lib/postgresql/9.3/main
sudo -u postgres pg_basebackup -h <MASTER IP> -D /var/lib/postgresql/9.3/main -U replicator -v -P
CREATE /var/lib/postgresql/9.3/main/recovery.conf
standby_mode = 'on'
primary_conninfo = 'host=<MASTER IP> port=5432 user=replicator password=FOO sslmode=require'
trigger_file = '/tmp/postgresql.trigger'
運行： -
sudo service postgresql restart
當我重新啓動的奴隸，我收到此錯誤信息的Postgres： -
LOG: database system was shut down at 2015-01-14 09:10:50 GMT 2015-01-14 09:11:01 GMT [16741-2]
LOG: entering standby mode 2015-01-14 09:11:01 GMT [16741-3] WARNING: WAL was generated with wal_level=minimal, data may be missing 2015-01-14 09:11:01 GMT [16741-4] HINT: This happens if you temporarily set wal_level=minimal without taking a new base backup. 2015-01-14 09:11:01 GMT [16741-5]
FATAL: hot standby is not possible because wal_level was not set to "hot_standby" on the master server 2015-01-14 09:11:01 GMT [16741-6] HINT: Either set wal_level to "hot_standby" on the master, or turn off hot_standby here. 2015-01-14 09:11:01 GMT [16740-1]
LOG: startup process (PID 16741) exited with exit code 1 2015-01-14 09:11:01 GMT [16740-2] LOG: aborting startup due to startup process failure ... failed!
這究竟是爲什麼？我已檢查並重新檢查，在主wal_level上設置爲hot_standby。在高手運行「顯示全部」表明這是這種情況？我對此感到不知所措。