1、环境准备：
mkdir /home/mongodb #创建MongoDB程序存放目录
mkdir /data/mongodata -p #创建数据存放目录
mkdir /data/log/mongolog -p #创建日志存放目录
2、下载：
curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.2.1.tgz
3、安装：
tar xf mongodb-linux-x86_64-3.2..tgz
cd mongodb-linux-x86_64-3.2.
cp -r * /home/mongodb
为了便于命令启动，需要编辑全局变量PATH
vim /etc/profile.d/mongo.sh
export PATH=$PATH:/home/mongodb/bin
source /etc/profile.d/mongo.sh
4、启动服务
首先查看mongod的帮助信息
[root@test ~]# mongod --help
Options: General options:
-h [ --help ] show this usage information
--version show version information
-f [ --config ] arg configuration file specifying
additional options
-v [ --verbose ] [=arg(=v)] be more verbose (include multiple times
for more verbosity e.g. -vvvvv)
--quiet quieter output
--port arg #指定mongodb服务的端口号，默认为：27017
13 --bind_ip arg #在多网卡的机器上指定mongodb服务绑定到哪一个ip上
15 --ipv6 enable IPv6 support (disabled by
default)
--maxConns arg #指定最大客户端连接数
19 --logpath arg #指定日志文件路径，必须是一个文件，而不是目录
20 --syslog log to system's syslog facility instead
of file or stdout
--syslogFacility arg syslog facility used for mongodb syslog
message
--logappend #以追加的方式打印日志到--logpath参数指定的日志文件中
28 --logRotate arg set the log rotation behavior
(rename|reopen)
--timeStampFormat arg Desired format for timestamps in log
messages. One of ctime, iso8601-utc or
iso8601-local
--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
--httpinterface enable http interface
--clusterAuthMode arg Authentication mode used for cluster
authentication. Alternatives are
(keyFile|sendKeyFile|sendX509|x509)
--nounixsocket disable listening on unix sockets
--unixSocketPrefix arg alternative directory for UNIX domain
sockets (defaults to /tmp)
--filePermissions arg permissions to set on UNIX domain
socket file - by default
--fork #以daemon的形式运行服务进程
--auth run with security
--noauth run without security
--jsonp allow JSONP access via http (has
security implications)
--rest turn on simple rest api
--slowms arg (=) value of slow for profile and console
log
--profile arg =off =slow, =all
--cpu periodically show cpu and iowait
utilization
--sysinfo print some diagnostic system
information
--noIndexBuildRetry don't retry any index builds that were
interrupted by shutdown
--noscripting disable scripting engine
--notablescan do not allow table scans
--shutdown kill a running server (for init
scripts) Replication options:
--oplogSize arg size to use (in MB) for replication op
log. default is % 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
<server:port>
--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 <setname>[/<optionalseedhostlist
>]
--replIndexPrefetch arg specify index prefetching behavior (if
secondary) [none|_id_only|all]
--enableMajorityReadConcern enables majority readConcern Sharding options:
--configsvr declare this is a config db of a
cluster; default port ; default
dir /data/configdb
--configsvrMode arg Controls what config server protocol is
in use. When set to "sccc" keeps server
in legacy SyncClusterConnection mode
even when the service is running as a
replSet
--shardsvr declare this is a shard db of a
cluster; default port Storage options:
--storageEngine arg what storage engine to use - defaults
to wiredTiger if no data files present
--dbpath arg #指定数据目录路径
--directoryperdb each database will be stored in a
separate directory
--noprealloc disable data file preallocation - will
often hurt performance
--nssize arg (=) .ns file size (in MB) for new databases
--quota limits each database to a certain
number of files ( default)
--quotaFiles arg number of files allowed per db, implies
--quota
--smallfiles use a smaller default file size
--syncdelay arg (=) seconds between disk syncs (=never,
but not recommended)
--upgrade upgrade db if needed
--repair run repair on all dbs
--repairpath arg root directory for repair files -
defaults to dbpath
--journal enable journaling
--nojournal disable journaling (journaling is on by
default for bit)
--journalOptions arg journal diagnostic options
--journalCommitInterval arg how often to group/batch commit (ms) WiredTiger options:
--wiredTigerCacheSizeGB arg maximum amount of memory to allocate
for cache; defaults to / of physical
RAM
--wiredTigerStatisticsLogDelaySecs arg (=)
seconds to wait between each write to a
statistics file in the dbpath; means
do not log statistics
--wiredTigerJournalCompressor arg (=snappy)
use a compressor for log records
[none|snappy|zlib]
--wiredTigerDirectoryForIndexes Put indexes and data in different
directories
--wiredTigerCollectionBlockCompressor arg (=snappy)
block compression algorithm for
collection data [none|snappy|zlib]
--wiredTigerIndexPrefixCompression arg (=)
use prefix compression on row-store
leaf pages
启动服务示例：
mongod --dbpath=/data/mongodata --logpath=/data/log/mongolog/mongodb.log --logappend --fork
查看是否启动：
netstat -tnlp | grep mongod
tcp 0.0.0.0: 0.0.0.0:* LISTEN /mongod
以上可看出端口27017已经运行
5、测试
启动mongodb的shell：
[root@test ~]# mongo
MongoDB shell version: 3.2.
connecting to: test
Server has startup warnings:
--25T16::52.960+ I CONTROL [initandlisten] ** WARNING: You are running this process as the root user, which is not recommended.
--25T16::52.960+ I CONTROL [initandlisten]
--25T16::52.960+ I CONTROL [initandlisten]
--25T16::52.960+ I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
--25T16::52.960+ I CONTROL [initandlisten] ** We suggest setting it to 'never'
--25T16::52.960+ I CONTROL [initandlisten]
--25T16::52.960+ I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
--25T16::52.960+ I CONTROL [initandlisten] ** We suggest setting it to 'never'
--25T16::52.960+ I CONTROL [initandlisten]
> help
db.help() help on db methods
db.mycoll.help() help on collection methods
sh.help() sharding helpers
rs.help() replica set helpers
help admin administrative help
help connect connecting to a db help
help keys key shortcuts
help misc misc things to know
help mr mapreduce show dbs show database names
show collections show collections in current database
show users show users in current database
show profile show most recent system.profile entries with time >= 1ms
show logs show the accessible logger names
show log [name] prints out the last segment of log in memory, 'global' is default
use <db_name> set current database
db.foo.find() list objects in collection foo
db.foo.find( { a : } ) list objects in foo where a ==
it result of the last line evaluated; use to further iterate
DBQuery.shellBatchSize = x set default number of items to display on shell
exit quit the mongo shell
> show dbs
local .000GB
>
至此，MongoDB3.2.1安装完毕。