mongodb3.2二进制安装
1.环境介绍
2.配置环境变量,修改与之相关的系统参数
3.创建mongodb运行用户和目录等
4.上传安装包，解压安装
5.创建配置文件
6.启动并进行简单测试
7.总结
1.环境介绍：
OS:Centos6.5_64
MongoDB版本：mongodb-linux-x86_64-rhel62-v3.2-latest.tgz
Memory:2G
2.配置环境变量,修改与之相关的系统参数
在该文件中末尾添加这些参数,否则后面会有相应地告警信息
[[email protected] ~]# vim /etc/security/limits.conf
* - fsize unlimited # (file size)
* - cpu unlimited # (cpu time)
* - as unlimited # (virtual memory size)
* - nofile 64000 # (open files)
* - nproc 64000 # (processes/threads)
mongodb soft nofile 64000
mongodb hard nofile 64000
mongodb soft nproc 32000
mongodb hard nproc 32000
在proc中关闭NUMA
[[email protected] ~]# echo 0 > /proc/sys/vm/zone_reclaim_mode
[[email protected] ~]# sysctl -w vm.zone_reclaim_mode=0
vm.zone_reclaim_mode = 0
[[email protected] ~]# echo never > /sys/kernel/mm/transparent_hugepage/enabled
[[email protected] ~]# echo never > /sys/kernel/mm/transparent_hugepage/defrag
[ro[email protected] local]# vim /etc/rc.local
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi
上述操作的目的是解决类似如下的告警信息：
2015-03-19T00:43:27.760+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is ‘always‘.
2015-03-19T00:43:27.760+0800 I CONTROL [initandlisten] ** We suggest setting it to ‘never‘
3.创建mongodb运行用户和目录等
因为高版本的mongodb需要独立的用户来运行mongod进程，像mysqld需要mysql用户一样,
所以这里我推荐创建一个用户。如果不创建的话，也能运行，不过日志中会有相应的告警提示信息。
[[email protected] ~]# useradd mongodb # 注意:mongodb这个用户名可以取别的
[[email protected] ~]# passwd mongodb
Changing password for user mongodb.
New password:
BAD PASSWORD: it is based on a dictionary word
BAD PASSWORD: is too simple
Retype new password:
passwd: all authentication tokens updated successfully.
[[email protected] ~]#
创建需要的目录，并修改权限,切换到mongodb用户模式
[[email protected] ~]# su - mongodb
[[email protected] ~]$ mkdir -p {data,log,conf}
[[email protected] ~]$ ll
total 12
drwxrwxr-x 2 mongodb mongodb 4096 Jan 25 14:03 conf
drwxrwxr-x 2 mongodb mongodb 4096 Jan 25 14:03 data
drwxrwxr-x 2 mongodb mongodb 4096 Jan 25 14:03 log
[[email protected] ~]$
4.上传安装包，解压安装
[[email protected] ~]$ wget http://downloads.mongodb.org/linux/mongodb-linux-x86_64-rhel62-v3.2-latest.tgz
[[email protected] ~]$ ll
total 64900
drwxrwxr-x 2 mongodb mongodb 4096 Jan 25 14:03 conf
drwxrwxr-x 2 mongodb mongodb 4096 Jan 25 14:03 data
drwxrwxr-x 2 mongodb mongodb 4096 Jan 25 14:03 log
-rw-rw-r-- 1 mongodb mongodb 66443467 Jan 23 02:47 mongodb-linux-x86_64-rhel62-v3.2-latest.tgz
[[email protected] ~]$ tar -zxf mongodb-linux-x86_64-rhel62-v3.2-latest.tgz
[[email protected] ~]$ mv mongodb-linux-x86_64-rhel62-3.2.1-83-g187028f/ mongodb3.2.1
[[email protected] ~]$ rm -f mongodb-linux-x86_64-rhel62-v3.2-latest.tgz # 可以不用删除
5.创建配置文件
[[email protected] ~]$ vim /home/mongodb/.bash_profile
export PATH=/home/mongodb/mongodb3.2.1/bin:$PATH
[mongo[email protected] ~]$ source /home/mongodb/.bash_profile
[[email protected] ~]$ vim conf/mongodb.conf
# bind_ip=192.168.0.100 # ip绑定
port=37000 # 端口号
dbpath=/home/mongodb/data/
logpath=/home/mongodb/log/mongodb.log # 输出日志文件名称
pidfilepath=/home/mongodb/mongobd.pid # pid文件名称
journal=true
maxConns=50000 # 最大连接数
logappend=true # 日志输出方式
fork=true # 以守护进程的方式运行，创建服务器进程
# httpinterface=false # web界面
noauth=true
cpu=true
[[email protected] ~]$
6.启动并进行简单测试
启动有两种方式启动，直接命令行启动，还有一种就是使用配置文件启动,
强烈建议使用配置文件启动。
[[email protected] ~]$ /home/mongodb/mongodb3.2.1/bin/mongod -f /home/mongodb/conf/mongodb.conf
about to fork child process, waiting until server is ready for connections.
forked process: 32485
child process started successfully, parent exiting
[[email protected] ~]$ ps -ef|grep mongodb
root 32305 32261 0 13:56 pts/0 00:00:00 su - mongodb
mongodb 32485 1 1 14:43 ? 00:00:00 /home/mongodb/mongodb3.2.1/bin/mongod -f /home/mongodb/conf/mongodb.conf
mongodb 32502 32306 0 14:44 pts/0 00:00:00 grep mongodb
[[email protected] ~]$ netstat -anltp|grep 37000
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 0.0.0.0:37000 0.0.0.0:* LISTEN 32485/mongod
[[email protected] ~]$
[[email protected] ~]$ cat /home/mongodb/log/mongodb.log
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] MongoDB starting : pid=32485 port=37000 dbpath=/home/mongodb/data/ 64-bit host=aly-lww3
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] db version v3.2.1-83-g187028f
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] git version: 187028f283545496b0254216d17822211fe5202c
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] modules: none
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] build environment:
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] distmod: rhel62
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] distarch: x86_64
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] target_arch: x86_64
2016-01-25T14:43:50.877+0800 I CONTROL [initandlisten] options: { config: "/home/mongodb/conf/mongodb.conf", cpu: true, net: { maxIncomingConnections: 50000, port: 37000 }, processManagement: { fork: true, pidFilePath: "/home/mongodb/mongobd.pid" }, security: { authorization: "disabled" }, storage: { dbPath: "/home/mongodb/data/", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/home/mongodb/log/mongodb.log" } }
2016-01-25T14:43:50.877+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2016-01-25T14:43:51.017+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory ‘/home/mongodb/data/diagnostic.data‘
2016-01-25T14:43:51.018+0800 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
2016-01-25T14:43:51.045+0800 I NETWORK [initandlisten] waiting for connections on port 37000
[[email protected] ~]$
创建一个快捷启动mongodb的方式
[[email protected] ~]$ vim start_mongodb.sh
#!/bin/bash
/home/mongodb/mongodb3.2.1/bin/mongod -f /home/mongodb/conf/mongodb.conf
[[email protected] ~]$ ./start_mongodb.sh
about to fork child process, waiting until server is ready for connections.
forked process: 32619
child process started successfully, parent exiting
[[email protected] ~]$
[[email protected] ~]$ cat /home/mongodb/log/mongodb.log
2016-01-25T15:07:04.483+0800 I CONTROL [main] ***** SERVER RESTARTED *****
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] MongoDB starting : pid=32619 port=37000 dbpath=/home/mongodb/data/ 64-bit host=aly-lww3
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] db version v3.2.1-83-g187028f
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] git version: 187028f283545496b0254216d17822211fe5202c
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] modules: none
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] build environment:
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] distmod: rhel62
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] distarch: x86_64
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] target_arch: x86_64
2016-01-25T15:07:04.520+0800 I CONTROL [initandlisten] options: { config: "/home/mongodb/conf/mongodb.conf", cpu: true, net: { maxIncomingConnections: 50000, port: 37000 }, processManagement: { fork: true, pidFilePath: "/home/mongodb/mongobd.pid" }, security: { authorization: "disabled" }, storage: { dbPath: "/home/mongodb/data/", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/home/mongodb/log/mongodb.log" } }
2016-01-25T15:07:04.521+0800 I - [initandlisten] Detected data files in /home/mongodb/data/ created by the ‘wiredTiger‘ storage engine, so setting the active storage engine to ‘wiredTiger‘.
2016-01-25T15:07:04.521+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2016-01-25T15:07:04.913+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory ‘/home/mongodb/data/diagnostic.data‘
2016-01-25T15:07:04.914+0800 I NETWORK [initandlisten] waiting for connections on port 37000
2016-01-25T15:07:04.914+0800 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
[[email protected] ~]$
7. 关闭mongodb数据库
关闭mongodb数据库，这里有三种安全的方式
(1) kill -4 pid
[[email protected] ~]$ ps -ef|grep ‘bin/mongod‘|grep -v ‘grep‘
mongodb 32485 1 0 14:43 ? 00:00:07 /home/mongodb/mongodb3.2.1/bin/mongod -f /home/mongodb/conf/mongodb.conf
[[email protected] ~]$ ps -ef|grep ‘bin/mongod‘|grep -v ‘grep‘|awk -F" " ‘{print $2}‘
32485
[[email protected] ~]$ kill -4 `ps -ef|grep ‘bin/mongod‘|grep -v ‘grep‘|awk -F" " ‘{print $2}‘`
日志太多,这里省略...
再次启动看看
[[email protected] ~]$ ./start_mongodb.sh
about to fork child process, waiting until server is ready for connections.
forked process: 32654
child process started successfully, parent exiting
[[email protected] ~]$
[[email protected] ~]$ tail -f /home/mongodb/log/mongodb.log
2016-01-25T15:13:30.772+0800 I CONTROL [main] ***** SERVER RESTARTED *****
2016-01-25T15:13:30.809+0800 I CONTROL [initandlisten] MongoDB starting : pid=32654 port=37000 dbpath=/home/mongodb/data/ 64-bit host=aly-lww3
2016-01-25T15:13:30.809+0800 I CONTROL [initandlisten] db version v3.2.1-83-g187028f
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] git version: 187028f283545496b0254216d17822211fe5202c
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] modules: none
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] build environment:
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] distmod: rhel62
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] distarch: x86_64
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] target_arch: x86_64
2016-01-25T15:13:30.810+0800 I CONTROL [initandlisten] options: { config: "/home/mongodb/conf/mongodb.conf", cpu: true, net: { maxIncomingConnections: 50000, port: 37000 }, processManagement: { fork: true, pidFilePath: "/home/mongodb/mongobd.pid" }, security: { authorization: "disabled" }, storage: { dbPath: "/home/mongodb/data/", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/home/mongodb/log/mongodb.log" } }
2016-01-25T15:13:30.810+0800 I - [initandlisten] Detected data files in /home/mongodb/data/ created by the ‘wiredTiger‘ storage engine, so setting the active storage engine to ‘wiredTiger‘.
2016-01-25T15:13:30.810+0800 W - [initandlisten] Detected unclean shutdown - /home/mongodb/data/mongod.lock is not empty.
2016-01-25T15:13:30.810+0800 W STORAGE [initandlisten] Recovering data from the last clean checkpoint.
2016-01-25T15:13:30.810+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2016-01-25T15:13:31.145+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory ‘/home/mongodb/data/diagnostic.data‘
2016-01-25T15:13:31.145+0800 I NETWORK [initandlisten] waiting for connections on port 37000
2016-01-25T15:13:31.146+0800 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
2016-01-25T15:13:32.019+0800 I FTDC [ftdc] Unclean full-time diagnostic data capture shutdown detected, found interim file, some metrics may have been lost. OK
从启动日志看,自动回复了。
(2) kill -2 pid
[[email protected] ~]$ kill -2 `ps -ef|grep ‘bin/mongod‘|grep -v ‘grep‘|awk -F" " ‘{print $2}‘`
[[email protected] ~]$ > /home/mongodb/log/mongodb.log
[[email protected] ~]$ tail -f /home/mongodb/log/mongodb.log
2016-01-25T15:14:49.415+0800 I CONTROL [signalProcessingThread] got signal 2 (Interrupt), will terminate after current cmd ends
2016-01-25T15:14:49.415+0800 I FTDC [signalProcessingThread] Shutting down full-time diagnostic data capture
2016-01-25T15:14:49.416+0800 I CONTROL [signalProcessingThread] now exiting
2016-01-25T15:14:49.416+0800 I NETWORK [signalProcessingThread] shutdown: going to close listening sockets...
2016-01-25T15:14:49.416+0800 I NETWORK [signalProcessingThread] closing listening socket: 6
2016-01-25T15:14:49.416+0800 I NETWORK [signalProcessingThread] closing listening socket: 7
2016-01-25T15:14:49.416+0800 I NETWORK [signalProcessingThread] removing socket file: /tmp/mongodb-37000.sock
2016-01-25T15:14:49.417+0800 I NETWORK [signalProcessingThread] shutdown: going to flush diaglog...
2016-01-25T15:14:49.417+0800 I NETWORK [signalProcessingThread] shutdown: going to close sockets...
2016-01-25T15:14:49.417+0800 I STORAGE [signalProcessingThread] WiredTigerKVEngine shutting down
2016-01-25T15:14:49.456+0800 I STORAGE [signalProcessingThread] shutdown: removing fs lock...
2016-01-25T15:14:49.456+0800 I CONTROL [signalProcessingThread] dbexit: rc: 0
再次启动看看
[[email protected] ~]$ cat /home/mongodb/log/mongodb.log
2016-01-25T15:15:22.822+0800 I CONTROL [main] ***** SERVER RESTARTED *****
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] MongoDB starting : pid=32681 port=37000 dbpath=/home/mongodb/data/ 64-bit host=aly-lww3
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] db version v3.2.1-83-g187028f
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] git version: 187028f283545496b0254216d17822211fe5202c
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] modules: none
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] build environment:
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] distmod: rhel62
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] distarch: x86_64
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] target_arch: x86_64
2016-01-25T15:15:22.858+0800 I CONTROL [initandlisten] options: { config: "/home/mongodb/conf/mongodb.conf", cpu: true, net: { maxIncomingConnections: 50000, port: 37000 }, processManagement: { fork: true, pidFilePath: "/home/mongodb/mongobd.pid" }, security: { authorization: "disabled" }, storage: { dbPath: "/home/mongodb/data/", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/home/mongodb/log/mongodb.log" } }
2016-01-25T15:15:22.858+0800 I - [initandlisten] Detected data files in /home/mongodb/data/ created by the ‘wiredTiger‘ storage engine, so setting the active storage engine to ‘wiredTiger‘.
2016-01-25T15:15:22.858+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2016-01-25T15:15:23.194+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory ‘/home/mongodb/data/diagnostic.data‘
2016-01-25T15:15:23.195+0800 I NETWORK [initandlisten] waiting for connections on port 37000
2016-01-25T15:15:23.195+0800 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
从关闭和启动日志中看,相对使用kill -4 而言，使用kill -2 更安全些。
(3) 使用db.shutdownServer()关闭mongodb数据库
[[email protected] ~]$ /home/mongodb/mongodb3.2.1/bin/mongo --port 37000
MongoDB shell version: 3.2.1-83-g187028f
connecting to: 127.0.0.1:37000/test
Welcome to the MongoDB shell.
For interactive help, type "help".
For more comprehensive documentation, see
http://docs.mongodb.org/
Questions? Try the support group
http://groups.google.com/group/mongodb-user
> show dbs
local 0.000GB
> use admin
switched to db admin
> db.shutdownServer();
server should be down...
2016-01-25T15:18:00.919+0800 I NETWORK [thread1] trying reconnect to 127.0.0.1:37000 (127.0.0.1) failed
2016-01-25T15:18:00.921+0800 I NETWORK [thread1] Socket recv() errno:104 Connection reset by peer 127.0.0.1:37000
2016-01-25T15:18:00.921+0800 I NETWORK [thread1] SocketException: remote: (NONE):0 error: 9001 socket exception [RECV_ERROR] server [127.0.0.1:37000]
2016-01-25T15:18:00.922+0800 I NETWORK [thread1] reconnect 127.0.0.1:37000 (127.0.0.1) failed failed
> exit
bye
[[email protected] ~]$
查看关闭日志
[[email protected] ~]$ cat /home/mongodb/log/mongodb.log
2016-01-25T15:17:29.958+0800 I NETWORK [initandlisten] connection accepted from 127.0.0.1:41509 #1 (1 connection now open)
2016-01-25T15:18:00.915+0800 I COMMAND [conn1] terminating, shutdown command received
2016-01-25T15:18:00.915+0800 I FTDC [conn1] Shutting down full-time diagnostic data capture
2016-01-25T15:18:00.917+0800 I CONTROL [conn1] now exiting
2016-01-25T15:18:00.917+0800 I NETWORK [conn1] shutdown: going to close listening sockets...
2016-01-25T15:18:00.917+0800 I NETWORK [conn1] closing listening socket: 6
2016-01-25T15:18:00.917+0800 I NETWORK [conn1] closing listening socket: 7
2016-01-25T15:18:00.917+0800 I NETWORK [conn1] removing socket file: /tmp/mongodb-37000.sock
2016-01-25T15:18:00.917+0800 I NETWORK [conn1] shutdown: going to flush diaglog...
2016-01-25T15:18:00.917+0800 I NETWORK [conn1] shutdown: going to close sockets...
2016-01-25T15:18:00.917+0800 I STORAGE [conn1] WiredTigerKVEngine shutting down
2016-01-25T15:18:01.000+0800 I STORAGE [conn1] shutdown: removing fs lock...
2016-01-25T15:18:01.000+0800 I CONTROL [conn1] dbexit: rc: 0
[[email protected] ~]$
再次启动看看
[[email protected] ~]$ ./start_mongodb.sh
about to fork child process, waiting until server is ready for connections.
forked process: 32740
child process started successfully, parent exiting
[[email protected] ~]$
[[email protected] ~]$ tail -f /home/mongodb/log/mongodb.log
2016-01-25T15:19:00.369+0800 I CONTROL [main] ***** SERVER RESTARTED *****
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] MongoDB starting : pid=32740 port=37000 dbpath=/home/mongodb/data/ 64-bit host=aly-lww3
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] db version v3.2.1-83-g187028f
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] git version: 187028f283545496b0254216d17822211fe5202c
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] allocator: tcmalloc
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] modules: none
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] build environment:
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] distmod: rhel62
2016-01-25T15:19:00.406+0800 I CONTROL [initandlisten] distarch: x86_64
2016-01-25T15:19:00.407+0800 I CONTROL [initandlisten] target_arch: x86_64
2016-01-25T15:19:00.407+0800 I CONTROL [initandlisten] options: { config: "/home/mongodb/conf/mongodb.conf", cpu: true, net: { maxIncomingConnections: 50000, port: 37000 }, processManagement: { fork: true, pidFilePath: "/home/mongodb/mongobd.pid" }, security: { authorization: "disabled" }, storage: { dbPath: "/home/mongodb/data/", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/home/mongodb/log/mongodb.log" } }
2016-01-25T15:19:00.407+0800 I - [initandlisten] Detected data files in /home/mongodb/data/ created by the ‘wiredTiger‘ storage engine, so setting the active storage engine to ‘wiredTiger‘.
2016-01-25T15:19:00.407+0800 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
2016-01-25T15:19:00.759+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory ‘/home/mongodb/data/diagnostic.data‘
2016-01-25T15:19:00.760+0800 I NETWORK [initandlisten] waiting for connections on port 37000
2016-01-25T15:19:00.760+0800 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
可见,使用db.shutdownServer()和使用kill -2 比较放心些。所以我们最好能采用这两种的其中一个即可。
7.总结
本文档是基于目前相对较新的版本在测试过境中搭建的过程,而且是单机环境。目的是从头开始尝试
mongodb这种NoSQL数据库的使用。个人看重的除了mongodb自身的优势外,最喜欢它的复制集和分片功能。
在这两点上,目前关系型数据库实现起来相对较复杂，不易维护管理。