一、安装PCRE库
PCRE(Perl Compatible Regular Expressions),提供高速的正则表达式匹配api。yum install pcre-devel
或者到ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/下载合适的pcre源码包,然后configure/make/make install
二、安装Spider Monkey库
SpiderMonkey是JavaScript的C实现,可以提供JavaScript的代码解释功能。 到ftp://ftp.mozilla.org/pub/mozilla.org/js/下载js压缩包,解压后进入src目录,并按照如下步骤进行编译安装:export CFLAGS=”-DJS_C_STRINGS_ARE_UTF8″make -f Makefile.refJS_DIST=/usr make -f Makefile.ref export
三、安装SCons
Scons是一个Python写的自动化构建工具,比传统的GNU make更加简便、可靠以及高效。 到http://sourceforge.net/projects/scons/files/scons/下载源码压缩包,解压之后按照如下步骤进行安装:python setup.py install
四、安装MongoDB
先到http://www.mongodb.org/downloads/下载想要的MongoDB版本。建议下载1.6以上,有很多架构和功能方面的改进。 解压缩之后按照如下步骤进行安装:scons allscons –prefix=/usr/local/mongodb install
如果想要头文件和lib包,执行
scons –prefix=/usr/local/mongodb –full install
五,让MongoDB跑起来
虽然MongoDB支持在命令行里面添加所有参数,但是为了管理方便,还是应该添加一个配置文件的。然后在命令行里面指定配置文件的位置。 下面是一个简单的配置文件:vim /usr/local/mongodb/config/mongodb
#Directory and relavent setdbpath = /usr/local/mongodb/datalogpath = /usr/local/mongodb/log/mongodb.logrepairpath = /usr/local/mongodb/repairpidfilepath = /usr/local/mongodb/mongodb.piddirectoryperdb = true#sysinfo = true#verbose = truelogappend = true#cpu = true#Network and security setnoauth = trueport = 8888maxConns = 1024fork = true#Management#nohttpinterface = truerest = truequota = truequotaFiles = 1024nssize = 16#syncdelay = 5
值得注意的是,类似 nohttpinterface = false 的配置是无效的。因为这些选项默认为false,不需要配置。
运行MongDB:
mongod –config /usr/local/mongodb/config/mongodb
启动脚本 mongodb-start.sh
#!/bin/sh/usr/local/mongodb/bin/mongod --config /usr/local/mongodb/config/mongodb ## --upgrade \ ##runs a database upgrade option if needed \
关闭脚本 mongodb-stop.sh
#!/bin/bashpid=`ps -o pid,command ax | grep mongod | awk '!/awk/ && !/grep/ {print $1}'`;if [ "${pid}" != "" ]; thenkill -2 ${pid};fi
六,做服务
启动脚本init-rpm.sh
#! /bin/sh## mongodb – this script starts and stops the mongodb daemon## chkconfig: - 85 15# description: MongoDB is a non-relational database storage system.# processname: mongodb# config: /opt/config/mongodb# pidfile: /opt/mongodb/mongo.pidPATH=/opt/mongodb/bin:/sbin:/bin:/usr/sbin:/usr/binNAME=mongodbtest -x $DAEMON || exit 0set -ecase "$1" instart)echo -n "Starting MongoDB... "su - mongodb -c "/opt/bin/mongodb-start";;stop)echo -n "Stopping MongoDB"/opt/bin/mongodb-stop;;*)N=/etc/init.d/$NAMEecho "Usage: $N {start|stop}" >&2exit 1;;esacexit 0
把以上启动脚本做成服务
#mv init-rpm.sh /etc/init.d/mongodb#chmod +x /etc/init.d/mongodb#chkconfig --add mongodb#chkconfig -–level 345 mongodb on
MongoDB与sql语句对照表
SQL Statement | Mongo Query Language Statement |
---|---|
CREATE TABLE USERS (a Number, b Number) | implicit; can be done |
INSERT INTO USERS VALUES(1,1) | db.users.insert({a:1,b:1}) |
SELECT a,b FROM users | db.users.find({}, {a:1,b:1}) |
SELECT * FROM users | db.users.find() |
SELECT * FROM users WHERE age=33 | db.users.find({age:33}) |
SELECT a,b FROM users WHERE age=33 | db.users.find({age:33}, {a:1,b:1}) |
SELECT * FROM users WHERE age=33 ORDER BY name | db.users.find({age:33}).sort({name:1}) |
SELECT * FROM users WHERE age>33 | db.users.find({'age':{$gt:33}})}) |
SELECT * FROM users WHERE age<33 | db.users.find({'age':{$lt:33}})}) |
SELECT * FROM users WHERE name LIKE "%Joe%" | db.users.find({name:/Joe/}) |
SELECT * FROM users WHERE name LIKE "Joe%" | db.users.find({name:/^Joe/}) |
SELECT * FROM users WHERE age>33 AND age<=40 | db.users.find({'age':{$gt:33,$lte:40}})}) |
SELECT * FROM users ORDER BY name DESC | db.users.find().sort({name:-1}) |
CREATE INDEX idx_name ON users(name) | db.users.ensureIndex({name:1}) |
CREATE INDEX idx_name ON users(name,ts DESC) | db.users.ensureIndex({name:1,ts:-1}) |
SELECT * FROM users WHERE a=1 and b='q' | db.users.find({a:1,b:'q'}) |
SELECT * FROM users LIMIT 10 SKIP 20 | db.users.find().limit(10).skip(20) |
SELECT * FROM users WHERE a=1 or b=2 | db.users.find( { $or : [ { a : 1 } , { b : 2 } ] } ) |
SELECT * FROM users LIMIT 1 | db.users.findOne() |
EXPLAIN SELECT * FROM users WHERE z=3 | db.users.find({z:3}).explain() |
SELECT DISTINCT last_name FROM users | db.users.distinct('last_name') |
SELECT COUNT(*y) FROM users | db.users.count() |
SELECT COUNT(*y) FROM users where AGE > 30 | db.users.find({age: {'$gt': 30}}).count() |
SELECT COUNT(AGE) from users | db.users.find({age: {'$exists': true}}).count() |
UPDATE users SET a=1 WHERE b='q' | db.users.update({b:'q'}, {$set:{a:1}}, false, true) |
UPDATE users SET a=a+2 WHERE b='q' | db.users.update({b:'q'}, {$inc:{a:2}}, false, true) |
DELETE FROM users WHERE z="abc" | db.users.remove({z:'abc'}); |