mongodb 启动参数，备份和还原
mongodb 的启动 备份和数据还原，

启动
/usr/local/mongodb/bin/mongod --dbpath=/data/mongodb/data/ --logpath=/data/mongodb/logs/mongodb.log --logappend --fork --port=27017 --rest --profile=1 --slowms=500

备份
/usr/local/mongodb/bin/mongodump  -d question -o /data/mongoback/question
备份question数据库

/usr/local/mongodb/bin/mongodump  -o /data/mongoback/question
备份所有数据库

[root@192_168_56_28 ~]# /usr/local/mongodb/bin/mongodump  -d question -o /data/mongoback/question
connected to: 127.0.0.1
DATABASE: question       to     /data/mongoback/question/question
        question.qmin to /data/mongoback/question/question/qmin.bson
                11400/200000    5%
                22700/200000    11%
                32800/200000    16%
                39700/200000    19%
                47200/200000    23%
                59700/200000    29%
                63500/200000    31%
                73700/200000    36%
                84400/200000    42%
                91400/200000    45%
                101500/200000   50%
                105900/200000   52%
                117200/200000   58%
                124800/200000   62%
                134800/200000   67%
                143600/200000   71%
                150600/200000   75%
                161800/200000   80%
                168300/200000   84%
                178200/200000   89%
                188300/200000   94%
                195800/200000   97%
                 200000 objects
        question.system.indexes to /data/mongoback/question/question/system.indexes.bson
                 2 objects
        question.qtest to /data/mongoback/question/question/qtest.bson
                 1 objects

还原

/usr/local/mongodb/bin/mongorestore   -d question /data/mongoback/question/question/

[root@192_168_56_28 ~]# /usr/local/mongodb/bin/mongorestore   -d question /data/mongoback/question/question/
connected to: 127.0.0.1
Wed May 18 11:36:29 /data/mongoback/question/question/qtest.bson
Wed May 18 11:36:29      going into namespace [question.qtest]
Wed May 18 11:36:29      1 objects found
Wed May 18 11:36:29 /data/mongoback/question/question/qmin.bson
Wed May 18 11:36:29      going into namespace [question.qmin]
                56725689/1334923145     4%
                93397983/1334923145     6%
                153788007/1334923145    11%
                220968938/1334923145    16%
                276067420/1334923145    20%
                341372204/1334923145    25%
                402288690/1334923145    30%
                459793285/1334923145    34%
                506933463/1334923145    37%
                554789270/1334923145    41%
                582354565/1334923145    43%
                627993479/1334923145    47%
                670204833/1334923145    50%
                709622208/1334923145    53%
                754859802/1334923145    56%
                807169138/1334923145    60%
                846390240/1334923145    63%
                867313806/1334923145    64%
                875991977/1334923145    65%
                896455305/1334923145    67%
                907012668/1334923145    67%
                933149500/1334923145    69%
                949885248/1334923145    71%
                967124423/1334923145    72%
                983118646/1334923145    73%
                1008473340/1334923145   75%
                1017473193/1334923145   76%
                1028092024/1334923145   77%
                1035784528/1334923145   77%
                1045745329/1334923145   78%
                1057074448/1334923145   79%
                1065825006/1334923145   79%
                1071903919/1334923145   80%
                1080134913/1334923145   80%
                1093561756/1334923145   81%
                1102750160/1334923145   82%
                1115563948/13