MongoDB Start Command Parameters Chinese description _mongodb

We can view all the parameter descriptions of Mongod through Mongod--help, and the following is the Chinese explanation of each parameter.

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 (fragmentation) options

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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 bigotry for movechunk data save?

Example:

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./mongod-shardsvr-replset Shard1-port 16161-dbpath/data/mongodb/data/shard1a-oplogsize 100-logpath/data/mongodb/l Ogs/shard1a.log-logappend-fork-rest

The above parameters can be written to the mongod.conf configuration document for example:

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