MongoDB configuration file Commentary (reproduced)

Starting mode

./bin/mongod-f mongodb.conf

'll see
About-to-fork child process, waiting until server was ready for connections.
Forked process:2313
Child process started successfully, parent exiting

Basic Configuration

#数据库数据存放目录

Dbpath=/usr/local/mongodb304/data
#数据库日志存放目录
Logpath=/usr/local/mongodb304/logs/mongodb.log
#以追加的方式记录日志
Logappend = True
#端口号 defaults to 27017
port=27017
#以后台方式运行进程
Fork=true
#开启用户认证
Auth=true
#关闭http接口, HTTP port access is turned off by default
Nohttpinterface=true
#mongodb所绑定的ip地址
BIND_IP = 127.0.0.1
#启用日志文件, enabled by default
Journal=true
#这个选项可以过滤掉一些无用的日志信息, set to False if you need to use Debug

Quiet=true

Other configuration parameter Meanings

--quiet	# quiet Output
--port Arg	# Specify the service port number, default ports 27017
--BIND_IP Arg	# Bind service IP, if bind 127.0.0.1, can only native access, do not specify default local all IP
--logpath Arg	# Specify the MongoDB log file, note that the specified file is not a directory
--logappend	# Write a log using append
--pidfilepath Arg	# The full path of the PID file, if not set, there are no PID files
--keyfile Arg	# The full path of the cluster's private key, valid only for the replica Set schema
--unixsocketprefix Arg	# UNIX domain Socket Alternative directory, (default =/tmp)
--fork	# run MongoDB as a daemon and create a server process
--auth	# Enable Validation
--cpu	# Periodic display of CPU utilization and iowait
--dbpath Arg	# Specify Database path
--diaglog Arg	# Diaglog Options 0=off 1=w 2=r 3=both 7=w+some reads
--directoryperdb	# Set each database to be saved in a separate directory
--journal	# Enable logging option, MONGODB data operation will be written to the file in the Journal folder
--journaloptions Arg	# Enable Log Diagnostics options
--ipv6	# Enable IPV6 option
--jsonp	# Allow JSONP form to be accessed via HTTP (with security implications)
--maxconns Arg	# Maximum number of simultaneous connections default 2000
--noauth	# Do not enable validation
--nohttpinterface	# Close the HTTP interface and turn off 27018 port access by default
--noprealloc	# Disable data file pre-allocation (often impacting performance)
--noscripting	# Disable scripting engine
--notablescan	# No table scan allowed
--nounixsocket	# Disable UNIX socket snooping
--nssize Arg (=16)	# Set the message database. ns File Size (MB)
--objcheck	# in the receipt of customer data, check the validity of
--profile Arg	# file Parameters 0=off 1=slow, 2=all
--quota	# limit the number of files per database, set default to 8
--quotafiles Arg	# Number of files Allower per db, requires--quota
--rest	# Open a simple rest API
--repair	# fix all databases run repair on all DBS
--repairpath Arg	# Fix the directory of the files generated by the library, default to directory name DBPath
--slowms Arg (=100)	# Value of slow for profile and console log
--smallfiles	# Use a smaller default file
--syncdelay Arg (=60)	# Number of seconds data written to disk (0=never, not recommended)
--sysinfo	# Print some diagnostic system Information
--upgrade	# If you need to upgrade your database

* Replicaton Parameters

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--fastsync	# from a dbpath enabled from the Library Replication service, the DBPath database is a snapshot of the main library and can be used to quickly enable synchronization
--autoresync	# If synchronizing data from the library to the main library is much worse, automatic resynchronization
--oplogsize Arg	# Set the size of the Oplog (MB)

* Master/slave parameters

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--master	# Main Library Mode
--slave	# from Library mode
--source Arg	# from the Library port number
--only Arg	# Specify a single database copy
--slavedelay Arg	# Set the delay time for synchronizing the main library from the library

* Replica set (replica set) option:

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--replset Arg

# set Replica set name

* sharding (Shard) option

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--configsvr	# Declare this is a clustered config service, default port 27019, default directory/data/configdb
--shardsvr	# Declare this is a clustered shard, default port 27018
--nomoveparanoia	# Turn off paranoid for movechunk data save

MongoDB configuration file Commentary (reproduced)