按照README文档,解压完mongodb压缩文件之后执行./mongod 输入启动命令，出现如下情况： ./mongod 2017-05-03T02:44:28.693-0700 I CONTROL [initandlisten] MongoDB starting : pid=2286 port=27017 dbpath=/data/db 64-bit host=ubuntu 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] db version v3.4.4 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] git version: 888390515874a9debd1b6c5d36559ca86b44babd 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2g-fips 1 Mar 2016 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] allocator: tcmalloc 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] modules: none 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] build environment: 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] distmod: ubuntu1604 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] distarch: x86_64 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] target_arch: x86_64 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] options: {} 2017-05-03T02:44:28.694-0700 I STORAGE [initandlisten] exception in initAndListen: 29 Data directory /data/db not found., terminating 2017-05-03T02:44:28.694-0700 I NETWORK [initandlisten] shutdown: going to close listening sockets... 2017-05-03T02:44:28.694-0700 I NETWORK [initandlisten] shutdown: going to flush diaglog... 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] now exiting 2017-05-03T02:44:28.694-0700 I CONTROL [initandlisten] shutting down with code:100
出现错误，shutting down with code:100。 通过运行： sudo ./mongod解决，启动之后可通过
netstat -lanp | grep "27017"查看是否正常启动
tcp 0 0 0.0.0.0:27017 0.0.0.0:* LISTEN - unix 2 [ ACC ] STREAM LISTENING 27064 - /如上启动正常，默认端口27017
