本来想写Replica的非测试模式的集群架构的，但是实在是手痒痒，把mongoDB的3.0给download下来了，看了1两眼文档后决定还是先大概写1点点关于启动的话题，以后写Replica的时候基本上就用mongoDB 3.0的方式+YAML的 配置方式来做了。
这个是default的启动方式。mongod的启动参数多如牛毛，本来想有空总结1下的，我勒个去的，有些估计这辈子也用不到的场景也不知道如何写，等我再斟酌1下再说吧。
storage:
dbPath: C:datamdb
engine: mmapv1注意，engine这个地方可以不写哦，默许就是mmapv1。其余那几10个参数先不写了太多了。
C:MongoDB3Server3.0in>mongod -f C:MongoDB3Server3.0etcconfconfig.conf履行上面的命令后：
2015-03-06T23:50:20.794+0800 I CONTROL [initandlisten] MongoDB starting : pid=1
4116 port=27017 dbpath=C:datamdb 64-bit host=yanglu
2015-03-06T23:50:20.798+0800 I CONTROL [initandlisten] targetMinOS: Windows 7/W
indows Server 2008 R2
2015-03-06T23:50:20.799+0800 I CONTROL [initandlisten] db version v3.0.0
2015-03-06T23:50:20.800+0800 I CONTROL [initandlisten] git version: a841fd63943
65954886924a35076691b4d149168
2015-03-06T23:50:20.802+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL
1.0.1j-fips 15 Oct 2014
2015-03-06T23:50:20.803+0800 I CONTROL [initandlisten] build info: windows sys.
getwindowsversion(major=6, minor=1, build=7601, platform=2, service_pack='Servic
e Pack 1') BOOST_LIB_VERSION=1_49
2015-03-06T23:50:20.804+0800 I CONTROL [initandlisten] allocator: system
2015-03-06T23:50:20.805+0800 I CONTROL [initandlisten] options: { config: "C:M
ongoDB3Server3.0etcconfconfig.conf", storage: { dbPath: "C:datamdb", engi
ne: "mmapv1" } }
2015-03-06T23:50:20.916+0800 I JOURNAL [initandlisten] journal dir=C:datamdb
journal
2015-03-06T23:50:20.918+0800 I JOURNAL [initandlisten] recover : no journal fil
es present, no recovery needed
2015-03-06T23:50:20.953+0800 I JOURNAL [durability] Durability thread started
2015-03-06T23:50:20.954+0800 I JOURNAL [journal writer] Journal writer thread s
tarted
2015-03-06T23:50:21.167+0800 I INDEX [initandlisten] allocating new ns file C
:datamdblocal.ns, filling with zeroes...
2015-03-06T23:50:21.564+0800 I STORAGE [FileAllocator] allocating new datafile
C:datamdblocal.0, filling with zeroes...
2015-03-06T23:50:21.565+0800 I STORAGE [FileAllocator] creating directory C:da
tamdb\_tmp
2015-03-06T23:50:21.570+0800 I STORAGE [FileAllocator] done allocating datafile
C:datamdblocal.0, size: 64MB, took 0.002 secs
2015-03-06T23:50:21.590+0800 I NETWORK [initandlisten] waiting for connections
on port 27017哇啦啦，跑起来了。这个在3.0之前也这样，没啥特殊的。
这个是需要指定的启动方式。
storage:
dbPath: C:datawdb
engine: wiredTiger注意，engine这个地方设置的是wiredTiger哦。
C:MongoDB3Server3.0in>mongod -f C:MongoDB3Server3.0etcconfconfig.conf履行上面的命令后：
C:MongoDB3Server3.0in>mongod -f C:MongoDB3Server3.0etcconfconfig.conf
2015-03-06T23:59:56.445+0800 I CONTROL [initandlisten] MongoDB starting : pid=1
4076 port=27017 dbpath=C:datawdb 64-bit host=yanglu
2015-03-06T23:59:56.449+0800 I CONTROL [initandlisten] targetMinOS: Windows 7/W
indows Server 2008 R2
2015-03-06T23:59:56.449+0800 I CONTROL [initandlisten] db version v3.0.0
2015-03-06T23:59:56.449+0800 I CONTROL [initandlisten] git version: a841fd63943
65954886924a35076691b4d149168
2015-03-06T23:59:56.450+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL
1.0.1j-fips 15 Oct 2014
2015-03-06T23:59:56.450+0800 I CONTROL [initandlisten] build info: windows sys.
getwindowsversion(major=6, minor=1, build=7601, platform=2, service_pack='Servic
e Pack 1') BOOST_LIB_VERSION=1_49
2015-03-06T23:59:56.451+0800 I CONTROL [initandlisten] allocator: system
2015-03-06T23:59:56.453+0800 I CONTROL [initandlisten] options: { config: "C:M
ongoDB3Server3.0etcconfconfig.conf", storage: { dbPath: "C:datawdb", engi
ne: "wiredTiger" } }
2015-03-06T23:59:56.457+0800 I STORAGE [initandlisten] wiredtiger_open config:
create,cache_size=3G,session_max=20000,eviction=(threads_max=4),statistics=(fast
),log=(enabled=true,archive=true,path=journal,compressor=snappy),checkpoint=(wai
t=60,log_size=2GB),statistics_log=(wait=0),
2015-03-06T23:59:56.942+0800 I NETWORK [initandlisten] waiting for connections
on port 27017上面我启动两个mongod使用的是：
C:datamdb : mmapv1模式
C:datawdb : wiredTiger模式
两个不同的文件夹，使用的两个不同的存储模式，mongoDB的3.0中强调，当指定的dbpath使用的存储引擎和你的engine不1致的时候，mongoDB是谢绝启动的哦。