MongoDB Start Command mongod parameter description

MongoDB Start Command mongod parameter description

The main parameters of Mongod are:

Basic Configuration

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--quiet	# quiet Output
--port Arg	# Specify the service port number, default port 27017
--BIND_IP Arg	# Binding Service IP, if bound 127.0.0.1, only native access, do not specify default local all IP
--logpath Arg	# Specify MongoDB log file, note that the specified file is not a directory
--logappend	# Write logs with an Append method
--pidfilepath Arg	# The full path of PID file, if not set, then no PID files
--keyfile Arg	# The full path of the private key of the cluster, valid only for the replica Set schema
--unixsocketprefix Arg	# UNIX domain Socket substitution directory, (default/TMP)
--fork	# run MongoDB as a daemon, creating a server process
--auth	# Enable authentication
--cpu	# Show CPU utilization and iowait on a regular basis
--dbpath Arg	# Specify Database path
--diaglog Arg	# diaglog option 0=off 1=w 2=r 3=both 7=w+some
--directoryperdb	# Set each database will be saved in a separate directory
--journal	# Enable logging option, MONGODB data operations will be written to the file in the Journal folder
--journaloptions Arg	# Enable Logging diagnostics option
--ipv6	# Enable IPV6 option
--jsonp	# Allow JSONP to be accessed via HTTP (with security implications)
--maxconns Arg	# Maximum simultaneous connection number default 2000
--noauth	# Do not enable validation
--nohttpinterface	# Close HTTP interface, turn off 27018 port access by default
--noprealloc	# Disable data file pre-allocation (often impacting performance)
--noscripting	# Disable script engine
--notablescan	# Do not allow table scans
--nounixsocket	# Disable UNIX socket sniffing
--nssize Arg (=16)	# Set letter database. ns file Size (MB)
--objcheck	# in receipt of customer data, check the validity,
--profile Arg	# file Parameters 0=off 1=slow, 2=all
--quota	# limit the number of files per database, set defaults to 8
--quotafiles Arg	# Number of files Allower per db, requires--quota
--rest	# Open a simple rest API
--repair	# Repair all database run repair on all DBS
--repairpath Arg	# The directory of the files generated by the repair library, which defaults to the 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 to write data 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 the Library Replication service is enabled, and the DBPath database is a snapshot of the master library, which can be used to quickly enable synchronization
--autoresync	# If you sync data from the library to the main library, you'll automatically resynchronize,
--oplogsize Arg	# Set the size of the Oplog (MB)

* Master/From 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 replication
--slavedelay Arg	# Set the latency for synchronizing the main library from the library

* Replica set (replica set) option:

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--replset Arg

# set the replica set name

* Sharding (fragment) option

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--configsvr	# Declare this is a cluster config service, default port 27019, default directory/data/configdb
--shardsvr	# Declare this to be a cluster fragment, default port 27018
--nomoveparanoia	# off paranoia for movechunk data save

# All of the above parameters can be written to the mongod.conf configuration document for example:

DBPath =/data/mongodb
LogPath =/data/mongodb/mongodb.log
Logappend = True
Port = 27017
Fork = True
Auth = True


E.g:./mongod-shardsvr-replset Shard1-port 16161-dbpath/data/mongodb/data/shard1a-oplogsize 100-logpath/data/mongo Db/logs/shard1a.log-logappend-fork-rest