【MongoDB】03、MongoDB索引及分片基础
# mongod --helpAllowed options:
General options:
-h [ --help ] show this usage information
--version show version information
-f [ --config ] arg configuration file specifying additional options
-v [ --verbose ] be more verbose (include multiple times for more
verbosity e.g. -vvvvv)
--quiet quieter output
--port arg specify port number - 27017 by default
--bind_ip arg comma separated list of ip addresses to listen on
- all local ips by default
--maxConns arg max number of simultaneous connections - 20000 by
default
--logpath arg log file to send write to instead of stdout - has
to be a file, not directory
--logappend append to logpath instead of over-writing
--pidfilepath arg full path to pidfile (if not set, no pidfile is
created)
--keyFile arg private key for cluster authentication
--setParameter arg Set a configurable parameter
--nounixsocket disable listening on unix sockets
--unixSocketPrefix arg alternative directory for UNIX domain sockets
(defaults to /tmp)
--fork fork server process
--syslog log to system's syslog facility instead of file
or stdout
--auth run with security
--cpu periodically show cpu and iowait utilization
--dbpath arg directory for datafiles - defaults to /data/db/
--diaglog arg 0=off 1=W 2=R 3=both 7=W+some reads
--directoryperdb each database will be stored in a separate
directory
--ipv6 enable IPv6 support (disabled by default)
--journal enable journaling
--journalCommitInterval arg how often to group/batch commit (ms)
--journalOptions arg journal diagnostic options
--jsonp allow JSONP access via http (has security
implications)
--noauth run without security
--nohttpinterface disable http interface
--nojournal disable journaling (journaling is on by default
for 64 bit)
--noprealloc disable data file preallocation - will often hurt
performance
--noscripting disable scripting engine
--notablescan do not allow table scans
--nssize arg (=16) .ns file size (in MB) for new databases
--profile arg 0=off 1=slow, 2=all
--quota limits each database to a certain number of files
(8 default)
--quotaFiles arg number of files allowed per db, requires --quota
--repair run repair on all dbs
--repairpath arg root directory for repair files - defaults to
dbpath
--rest turn on simple rest api
--shutdown kill a running server (for init scripts)
--slowms arg (=100) value of slow for profile and console log
--smallfiles use a smaller default file size
--syncdelay arg (=60) seconds between disk syncs (0=never, but not
recommended)
--sysinfo print some diagnostic system information
--upgrade upgrade db if needed
Replication options:
--oplogSize arg size to use (in MB) for replication op log. default is
5% of disk space (i.e. large is good)
Master/slave options (old; use replica sets instead):
--master master mode
--slave slave mode
--source arg when slave: specify master as
--only arg when slave: specify a single database to replicate
--slavedelay arg specify delay (in seconds) to be used when applying
master ops to slave
--autoresync automatically resync if slave data is stale
Replica set options:
--replSet arg arg is [/]
--replIndexPrefetch arg specify index prefetching behavior (if secondary)
Sharding options:
--configsvr declare this is a config db of a cluster; default port
27019; default dir /data/configdb
--shardsvr declare this is a shard db of a cluster; default port
27018
SSL options:
--sslOnNormalPorts use ssl on configured ports
--sslPEMKeyFile arg PEM file for ssl
--sslPEMKeyPassword arg PEM file password
--sslCAFile arg Certificate Authority file for SSL
--sslCRLFile arg Certificate Revocation List file for SSL
--sslWeakCertificateValidationallow client to connect without presenting a
certificate
--sslFIPSMode activate FIPS 140-2 mode at startup
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