switched to db fensme
blort:PRIMARY> show collections
system.indexes
user
blort:PRIMARY> db.user.find()
{ “_id” : ObjectId(“51a8454813321f05df62a8c8″), “uid” : 10001 }
node1失效后，node3被选为了PRIMARY，数据在node3可以查询到。
修复失败节点
直接重启node1，启动失败：
~ mongod --dbpath /home/conan/dbs/node1 --port 10001 --replSet blort --nojournal --fork --logpath /home/conan/dbs/node1_restart.log
MongoDB starting : pid=8544 port=10001 dbpath=/home/conan/dbs/node1 64-bit host=u1
Fri May 31 14:49:37.280 [initandlisten] db version v2.4.3
Fri May 31 14:49:37.280 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49
Fri May 31 14:49:37.280 [initandlisten] allocator: tcmalloc
Fri May 31 14:49:37.280 [initandlisten] options: { dbpath: "/home/conan/dbs/node1", fork: true, logpath: "/home/conan/dbs/node1_restart.log", nojournal: true, port: 10001, replSet: "blort" }
**************
Unclean shutdown detected.
Please visit http://dochub.mongodb.org/core/repair for recovery instructions.
*************
Fri May 31 14:49:37.281 [initandlisten] exception in initAndListen: 12596 old lock file, terminating
Fri May 31 14:49:37.281 dbexit:
Fri May 31 14:49:37.281 [initandlisten] shutdown: going to close listening sockets...
Fri May 31 14:49:37.281 [initandlisten] shutdown: going to flush diaglog...
Fri May 31 14:49:37.281 [initandlisten] shutdown: going to close sockets...
Fri May 31 14:49:37.281 [initandlisten] shutdown: waiting for fs preallocator...
Fri May 31 14:49:37.281 [initandlisten] shutdown: closing all files...
Fri May 31 14:49:37.281 [initandlisten] closeAllFiles() finished
Fri May 31 14:49:37.281 dbexit: really exiting now
相关阅读：