Installing MongoDB under Linux

1. Download the installation package
wget http://fastdl.mongodb.org/linux/mongodb-linux-i686-1.8.2.tgz
Download

wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.0.4.tgz

  Unzip the package after download
 tar zxf mongodb-linux-i686-1.8.2.tgz
 
2. Installation Preparation
  Move MongoDB to/usr/ Local/mongdb folder
 mv mongodb-linux-i686-1.8.2/usr/local/mongodb
 
  CREATE database folder and log file
 mkdir/usr/local/mongodb/data
 touch/usr/local/mongodb/logs
 
3. Set boot from start
  Add MongoDB Startup Project to Rc.local to ensure MongoDB starts
 echo "/usr/local/server/mongodb/bin/mongod--dbpath=/usr/when the server is powered on local/server/mongodb/data–logpath=/usr/local/server/mongodb/logs–logappend --auth–port=27017 ">>/etc /rc.local
 
4. Start MongoDB
 cd to the Bin folder in the MongoDB directory to start MongoDB
 //This is the login method that requires permission. User connection required user name and password
 /usr/local/server/mongodb/bin/mongod--dbpath=/usr/local/server/mongodb/data--logpath=/ Usr/local/server/mongodb/logs--logappend --auth --port=27017--fork

 //This is a password not required
 /usr/local/server/mongodb/bin/mongod--dbpath=/usr/local/server/mongodb/data-- Logpath=/usr/local/server/mongodb/logs--logappend --port=27017--fork

---137 set the startup service
/usr/local/mongodb/bin/mongod--dbpath=/usr/local/mongodb/data--logpath=/usr/local/ Mongodb/logs/logs--logappend --port=27017--fork
5. Parameter explanation:--dbpath database path (data file)
       --logpath log file path
      --master designated as the primary machine
       --slave specified as the IP address of the host machine specified from machine
      --source
       --POLOGSIZE specifies that the log file size does not exceed 64M. Because the resync is very large and time-consuming, it is best to avoid resync by setting a sufficiently large oplogsize (the default The Oplog size is 5% of the free disk size).
      --logappend log file end add
      --port enable port number
      --fork run in the background
      --only specify which database to replicate only
      --slavedelay refers to the time interval from replication detection
      --auth Whether you need to verify permissions login (user name and password)

-H [--help] Show this usage information
--version Show version Information
-F [--config] arg configuration file specifying additional options
--port Arg Specify port number
--BIND_IP arg local IP address to bind Listener-all local IPs
Bound by default
-V [--verbose] is more verbose (include multiple times for more
verbosity e.g.-VVVVV)
--dbpath Arg (=/data/db/) directory for datafiles specifies the data storage directory
--quiet Quieter output Silent mode
--logpath arg file to send all output to instead of stdout specify log storage directory
--logappend APPND to LogPath instead of over-writing Specifies whether the log is written to the log file in append or overwrite mode
--fork Fork Server process runs in a way that creates a child process
--CPU periodically show CPU and iowait utilization periodic display of CPU and IO usage
--noauth run without security no authentication mode operation
--auth run with security authentication mode
--objcheck inspect client data for validity on receipt check validity check
--quota Enable DB Quota management start management of database quotas
--quotafiles arg number of files Allower per db, requires--quota rules per database allowed
--appsrvpath arg root directory for the Babble app server
--nocursors diagnostic/debugging option Debug Diagnostics options
--nohints Ignore query hints ignores the search hit ratio
--nohttpinterface Disable HTTP interface off HTTP interface, default is 28017
--noscripting Disable scripting engine close script engines
--noprealloc Disable data file preallocation to close the size pre-allocation of database files
--smallfiles use a smaller default file size uses a smaller
--nssize Arg (=16). ns file Size (in MB) The default size for new database NS files in the databases
--diaglog arg 0=off 1=w 2=r 3=both 7=w+some reads is provided in a way that is read-only, write-only, or read-write, or the main write + part of the reading mode
--sysinfo Print Some diagnostic system Information printing systems diagnostic information
--upgrade upgrade DB If needed update database if needed
--repair Run Repair on all DBS repair all databases
--notablescan do not allow table scans does not run tables scan
--syncdelay Arg (=60) seconds between disk syncs (0 for never) the system synchronizes the time to flush disks by default is 60s

Replication options:
--master Master Mode primary Copy mode
--slave slave mode from replication
--source Arg when slave:specify master as <server:port> specifies the primary address and port when it is from
--only Arg when slave:specify a single database to replicate is specified from the primary copy
--pairwith arg address of server to pair with
--arbiter arg address of arbiter server arbiter, used in master and pair
--autoresync automatically resync if slave data is stale auto-sync from
--oplogsize arg size limit (in megabytes) for OP log specifies the sizes of the operation logs
--opidmem arg size limit (in bytes) for in memory storage of OP IDs specifies the amount of memory to store the operation log

Sharding options:
--configsvr Declare this is a config db of a cluster specify the configuration server in Shard
--shardsvr declare this is a shard db of a cluster specifies the Shard server

6. CLI management interface into the database
CD to the Bin folder under the MongoDB directory, execute the command./mongo
Run as follows:
[Email protected] mongodb]#./bin/mongo
MongoDB Shell version:1.8.2
Connecting To:test
> Use test;
Switched to DB test

If the database appears as unable to connect, it is a data directory under the Mongod.lock file problem, you can use the following repair command,
Mongod--repair

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