Mongodb 无法启动mongod服务

我使用中的信息安装了mongodb。但是，当我使用service mongod start命令时，会出现以下错误。有人能帮我排除故障吗

[Piyush@localhost ~]$ service mongod start
/etc/init.d/mongod: line 54: ulimit: open files: cannot modify limit: Operation not permitted
/etc/init.d/mongod: line 56: ulimit: max user processes: cannot modify limit: Operation not permitted
Starting mongod: runuser: using restricted shell /bin/false
runuser: cannot set groups: Operation not permitted
                                                           [FAILED]
[Piyush@localhost ~]$ sudo service mongod start
[sudo] password for Piyush: 
Starting mongod:                                           [FAILED]

我试着使用--repair命令。为此，我得到以下输出：

[Piyush@localhost ~]$ sudo mongod --repair
2014-09-24T00:05:06.089-0400 [initandlisten] MongoDB starting : pid=2807 port=27017 dbpath=/data/db 64-bit host=localhost.localdomain
2014-09-24T00:05:06.089-0400 [initandlisten] db version v2.6.4
2014-09-24T00:05:06.089-0400 [initandlisten] git version: 3a830be0eb92d772aa855ebb711ac91d658ee910
2014-09-24T00:05:06.089-0400 [initandlisten] build info: Linux build7.nj1.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2014-09-24T00:05:06.089-0400 [initandlisten] allocator: tcmalloc
2014-09-24T00:05:06.090-0400 [initandlisten] options: { repair: true }
2014-09-24T00:05:06.106-0400 [initandlisten] finished checking dbs
2014-09-24T00:05:06.106-0400 [initandlisten] dbexit: 
2014-09-24T00:05:06.106-0400 [initandlisten] shutdown: going to close listening sockets...
2014-09-24T00:05:06.106-0400 [initandlisten] shutdown: going to flush diaglog...
2014-09-24T00:05:06.106-0400 [initandlisten] shutdown: going to close sockets...
2014-09-24T00:05:06.106-0400 [initandlisten] shutdown: waiting for fs preallocator...
2014-09-24T00:05:06.106-0400 [initandlisten] shutdown: closing all files...
2014-09-24T00:05:06.106-0400 [initandlisten] closeAllFiles() finished
2014-09-24T00:05:06.107-0400 [initandlisten] shutdown: removing fs lock...
2014-09-24T00:05:06.107-0400 [initandlisten] dbexit: really exiting now

[编辑1]

在日志文件中，我看到：

[root@localhost ~]# cat /var/log/mongodb/mongod.log.2014-09-24T16-00-32
2014-09-24T11:54:23.636-0400 ***** SERVER RESTARTED *****
2014-09-24T11:54:23.665-0400 [initandlisten] MongoDB starting : pid=3004 port=27017 dbpath=/var/lib/mongo 64-bit host=localhost.localdomain
2014-09-24T11:54:23.665-0400 [initandlisten] db version v2.6.4
2014-09-24T11:54:23.665-0400 [initandlisten] git version: 3a830be0eb92d772aa855ebb711ac91d658ee910
2014-09-24T11:54:23.665-0400 [initandlisten] build info: Linux build7.nj1.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2014-09-24T11:54:23.665-0400 [initandlisten] allocator: tcmalloc
2014-09-24T11:54:23.665-0400 [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1" }, processManagement: { fork: true, pidFilePath: "/var/run/mongodb/mongod.pid" }, storage: { dbPath: "/var/lib/mongo" }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } }
2014-09-24T11:54:23.680-0400 [initandlisten] journal dir=/var/lib/mongo/journal
2014-09-24T11:54:23.680-0400 [initandlisten] recover : no journal files present, no recovery needed
2014-09-24T11:54:23.680-0400 [initandlisten] 
2014-09-24T11:54:23.680-0400 [initandlisten] ERROR: Insufficient free space for journal files
2014-09-24T11:54:23.680-0400 [initandlisten] Please make at least 3379MB available in /var/lib/mongo/journal or use --smallfiles
2014-09-24T11:54:23.680-0400 [initandlisten] 
2014-09-24T11:54:23.681-0400 [initandlisten] exception in initAndListen: 15926 Insufficient free space for journals, terminating
2014-09-24T11:54:23.681-0400 [initandlisten] dbexit: 
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: going to close listening sockets...
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: going to flush diaglog...
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: going to close sockets...
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: waiting for fs preallocator...
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: lock for final commit...
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: final commit...
2014-09-24T11:54:23.681-0400 [initandlisten] shutdown: closing all files...
2014-09-24T11:54:23.681-0400 [initandlisten] closeAllFiles() finished
2014-09-24T11:54:23.681-0400 [initandlisten] journalCleanup...
2014-09-24T11:54:23.681-0400 [initandlisten] removeJournalFiles
2014-09-24T11:54:23.684-0400 [initandlisten] shutdown: removing fs lock...
2014-09-24T11:54:23.684-0400 [initandlisten] dbexit: really exiting now

--repair

标志用于修复损坏的数据库，而不是解决任何权限问题

很明显，您没有严格遵守链接的说明，因为他确实以root用户身份启动了服务。；）

sudo

可能只允许调用它的用户以超级用户权限执行init脚本的某些部分。其他人可能（尽管他们不应该）默默地失败。至少对于初始化脚本：sudo！=是根

要解决此问题：

sudo-chown-mongod-R/var/log/mongodb/&&sudo-chown-mongod-R/var/run/mongodb&&sudo-chown-mongod-R/var/lib/mongo

然后成为root用户并尝试使用

sudo-u-mongod-dbpath/var/lib/mongo-logpath/var/log/mongodb/mongod.log>手动运行mongo。如果还有其他问题，mongodb会告诉您。修复这些问题，直到上面所写的手动启动mongodb工作正常为止，然后从此开始使用initscript

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编辑：根据注释更正了--dbpath选项

您的意思是

sudo chown mongod-R/var/lib/mongo

3？我改变了这一点，因为它给出了一个错误，并要求更多的参数。另外，当我尝试运行第二个命令时，我会得到

错误解析命令行：未知选项datadir

但是，如果我更改为--dbpath，我会得到以下输出：

sudo-u mongod mongod--dbpath/var/lib/mongo--logpath/var/log/mongodb/mongod.log 2014-09-24T12:00:32.831-0400日志文件“/var/log/mongodb/mongod.log”存在；移至“/var/log/mongodb/mongod.log.2014-09-24T16-00-32”。