解决linux下启动mongodb出现错误的方法
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解决linux下启动mongodb出现错误的方法:
根据错误信息进入日志文件根据日志文件具体内容中提供的地址获取到修改方式
删除日志文件,以repair方式启动数据库
然后再启动一次数据库,查看进程,如果数据库进程存在,则修复成功
启动错误:
[root@oracleLinux~]#servicemongodstartStartingmongod:FriJan2409:59:59.385FriJan2409:59:59.386warning:32-bitserversdon'thavejournalingenabledbydefault.Pleaseuse--journalifyouwantdurability.FriJan2409:59:59.387abouttoforkchildprocess,waitinguntilserverisreadyforconnections.forkedprocess:2120alloutputgoingto:/var/log/mongo/mongod.logERROR:childprocessfailed,exitedwitherrornumber100
日志文件:
ERROR:childprocessfailed,exitedwitherrornumber100
日志文件相关内容:
**************Uncleanshutdowndetected.Pleasevisit<span>http://dochub.mongodb.org/core/repair</span>forrecoveryinstructions.*************ThuJan2312:34:11.293[initandlisten]exceptionininitAndListen:12596oldlockfile,terminatingThuJan2312:34:11.293dbexit:ThuJan2312:34:11.293[initandlisten]shutdown:goingtocloselisteningsockets...ThuJan2312:34:11.293[initandlisten]shutdown:goingtoflushdiaglog...ThuJan2312:34:11.293[initandlisten]shutdown:goingtoclosesockets...ThuJan2312:34:11.293[initandlisten]shutdown:waitingforfspreallocator...ThuJan2312:34:11.293[initandlisten]shutdown:closingallfiles...ThuJan2312:34:11.293[initandlisten]closeAllFiles()finishedThuJan2312:34:11.293dbexit:reallyexitingnow
此处是非法关闭mongodb,根据日子文件具体内容中提供的地址(第3行处)获取到修复方式。
a、首先删除/var/lib/mongo/目录下的mongod.lock文件,具体命令如下:
[root@oracleLinux~]#rm/var/lib/mongo/mongod.lock
b、已repair方式启动mongodb,具体命令如下:
[root@oracleLinuxmongo]#mongod-f/etc/mongod.conf--repairFriJan2410:38:39.112FriJan2410:38:39.113warning:32-bitserversdon'thavejournalingenabledbydefault.Pleaseuse--journalifyouwantdurability.FriJan2410:38:39.114abouttoforkchildprocess,waitinguntilserverisreadyforconnections.forkedprocess:2237alloutputgoingto:/var/log/mongo/mongod.logchildprocessstartedsuccessfully,parentexiting
在启动一次mongodb,具体命令如下:
[root@oracleLinuxmongo]#mongod-f/etc/mongod.confFriJan2410:41:13.664FriJan2410:41:13.665warning:32-bitserversdon'thavejournalingenabledbydefault.Pleaseuse--journalifyouwantdurability.FriJan2410:41:13.666abouttoforkchildprocess,waitinguntilserverisreadyforconnections.forkedprocess:2253alloutputgoingto:/var/log/mongo/mongod.logchildprocessstartedsuccessfully,parentexiting
查看进程,如果存在mongodb进程,即代表修复成功,具体命令如下:
[root@oracleLinuxmongo]#ps-ef|grepmongoroot22531210:41?00:00:02mongod-f/etc/mongod.confroot22682079010:43pts/000:00:00grepmongo
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