vpsがダウンして起動した後、mongodサービスが自動的に開始されず、開始できませんservice mongod start
。ファイル/var/log/mongo/mongod.log
には次のログが含まれています。
***** SERVER RESTARTED *****
Thu Oct 11 13:51:18
Thu Oct 11 13:51:18 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Thu Oct 11 13:51:18
Thu Oct 11 13:51:18 [initandlisten] MongoDB starting : pid=3821 port=27017 dbpath=/var/lib/mongo 32-bit host=server2.paransa.org
Thu Oct 11 13:51:18 [initandlisten]
Thu Oct 11 13:51:18 [initandlisten] ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data
Thu Oct 11 13:51:18 [initandlisten] ** see http://blog.mongodb.org/post/137788967/32-bit-limitations
Thu Oct 11 13:51:18 [initandlisten] ** with --journal, the limit is lower
Thu Oct 11 13:51:18 [initandlisten]
Thu Oct 11 13:51:18 [initandlisten] ** WARNING: You are running in OpenVZ. This is known to be broken!!!
Thu Oct 11 13:51:18 [initandlisten]
Thu Oct 11 13:51:18 [initandlisten] db version v2.2.0, pdfile version 4.5
Thu Oct 11 13:51:18 [initandlisten] git version: f5e83eae9cfbec7fb7a071321928f00d1b0c5207
Thu Oct 11 13:51:18 [initandlisten] build info: Linux domU-12-31-39-01-70-B4 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:39:36 EST 2008 i686 BOOST_LIB_VERSION=1_49
Thu Oct 11 13:51:18 [initandlisten] options: { config: "/etc/mongod.conf", dbpath: "/var/lib/mongo", fork: "true", logappend: "true", logpath: "/var/log/mongo/mongod.log", pidfilepath: "/var/run/mongodb/mongod.pid" }
Thu Oct 11 13:51:18 [initandlisten] couldn't open /var/lib/mongo/mydb_main.ns errno:13 Permission denied
Thu Oct 11 13:51:18 [initandlisten] error couldn't open file /var/lib/mongo/mydb_main.ns terminating
Thu Oct 11 13:51:18 dbexit:
Thu Oct 11 13:51:18 [initandlisten] shutdown: going to close listening sockets...
Thu Oct 11 13:51:18 [initandlisten] shutdown: going to flush diaglog...
Thu Oct 11 13:51:18 [initandlisten] shutdown: going to close sockets...
Thu Oct 11 13:51:18 [initandlisten] shutdown: waiting for fs preallocator...
Thu Oct 11 13:51:18 [initandlisten] shutdown: closing all files...
Thu Oct 11 13:51:18 [initandlisten] closeAllFiles() finished
Thu Oct 11 13:51:18 [initandlisten] shutdown: removing fs lock...
Thu Oct 11 13:51:18 dbexit: really exiting now
ご覧のとおり、ログには mongo server cant open *.ns file cause lake of permission と書かれています
しかし、次のコマンドでサーバーを手動で実行すると:
mongod --dbpath=/var/lib/mongo -f /etc/mongod.conf
ログファイルについてはすべて問題ないようです。
***** SERVER RESTARTED *****
Thu Oct 11 14:02:06
Thu Oct 11 14:02:06 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Thu Oct 11 14:02:06
Thu Oct 11 14:02:06 [initandlisten] MongoDB starting : pid=4090 port=27017 dbpath=/var/lib/mongo 32-bit host=server2.paransa.org
Thu Oct 11 14:02:06 [initandlisten]
Thu Oct 11 14:02:06 [initandlisten] ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data
Thu Oct 11 14:02:06 [initandlisten] ** see http://blog.mongodb.org/post/137788967/32-bit-limitations
Thu Oct 11 14:02:06 [initandlisten] ** with --journal, the limit is lower
Thu Oct 11 14:02:06 [initandlisten]
Thu Oct 11 14:02:06 [initandlisten] ** WARNING: You are running in OpenVZ. This is known to be broken!!!
Thu Oct 11 14:02:06 [initandlisten]
Thu Oct 11 14:02:06 [initandlisten] db version v2.2.0, pdfile version 4.5
Thu Oct 11 14:02:06 [initandlisten] git version: f5e83eae9cfbec7fb7a071321928f00d1b0c5207
Thu Oct 11 14:02:06 [initandlisten] build info: Linux domU-12-31-39-01-70-B4 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:39:36 EST 2008 i686 BOOST_LIB_VERSION=1_49
Thu Oct 11 14:02:06 [initandlisten] options: { config: "/etc/mongod.conf", dbpath: "/var/lib/mongo", fork: "true", logappend: "true", logpath: "/var/log/mongo/mongod.log", pidfilepath: "/var/run/mongodb/mongod.pid" }
Thu Oct 11 14:02:07 [websvr] admin web console waiting for connections on port 28017
Thu Oct 11 14:02:07 [initandlisten] waiting for connections on port 27017
--repair arg を使用しても役に立ちませんでした (おそらくmongod --dbpath=/var/lib/mongo -f /etc/mongod.conf
、コマンドに --repair arg を追加して手動で開始できるため、すべてが正常にログに記録されます!...)
なにか提案を?