MongoDB 安装配置

安装配置

首先到官网 https://www.mongodb.org/downloads 选择合适的安装包，下载后解压缩：

 

wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.0.7.tgz
tar -zxvf mongodb-linux-x86_64-rhel62-3.0.7.tgz

#重命名并移动到/opt目录
mv mongodb-linux-x86_64-rhel62-3.0.7 mongodb
mv mongodb /opt

#创建数据库文件目录及日志文件
mkdir /opt/mongodb/data
mkdir /opt/mongodb/logs
touch /opt/mongodb/logs/log

#开机自启动服务
echo "/opt/mongodb/bin/mongod --dbpath=/opt/mongodb/data --logpath=/opt/mongodb/logs/log --logappend --port=27017" >> /etc/rc.local

#共享客户端登录
cp /opt/mongodb/bin/mongo /usr/bin

reboot
mongo

MongoDB shell version: 3.0.7
connecting to: test
>

 

mongostat监控

 

cd /opt/mongodb/bin/
./mongostat

 

 

 

inserts

The number of objects inserted into the database per second. If followed by an asterisk (e.g. *), the datum refers to a replicated operation.

 

query

The number of query operations per second.

 

update

The number of update operations per second.

 

delete

The number of delete operations per second.

 

getmore

The number of get more (i.e. cursor batch) operations per second.

 

command

The number of commands per second. On slave and secondary systems, mongostat presents two values separated by a pipe character (e.g. |), in the form of local|replicated commands.

 

flushes

The number of fsync operations per second.

 

mapped

The total amount of data mapped in megabytes. This is the total data size at the time of the last mongostat call.

 

size

The amount of virtual memory in megabytes used by the process at the time of the last mongostat call.

 

non-mapped

The total amount of virtual memory excluding all mapped memory at the time of the last mongostat call.

 

res

The amount of resident memory in megabytes used by the process at the time of the last mongostat call.

 

faults

Changed in version 2.1.

The number of page faults per second.

Before version 2.1 this value was only provided for MongoDB instances running on Linux hosts.

 

locked

The percent of time in a global write lock.

Changed in version 2.2: The locked db field replaces the locked % field to more appropriate data regarding the database specific locks in version 2.2.

 

locked db

New in version 2.2.

The percent of time in the per-database context-specific lock. mongostat will report the database that has spent the most time since the last mongostat call with a write lock.

This value represents the amount of time that the listed database spent in a locked state combined with the time that the mongod spent in the global lock. Because of this, and the sampling method, you may see some values greater than 100%.

 

idx miss

The percent of index access attempts that required a page fault to load a btree node. This is a sampled value.

 

qr

The length of the queue of clients waiting to read data from the MongoDB instance.

 

qw

The length of the queue of clients waiting to write data from the MongoDB instance.

 

ar

The number of active clients performing read operations.

 

aw

The number of active clients performing write operations.

 

netIn

The amount of network traffic, in bytes, received by the MongoDB instance.

 

This includes traffic from mongostat itself.

 

netOut

The amount of network traffic, in bytes, sent by the MongoDB instance.

 

This includes traffic from mongostat itself.

 

conn

The total number of open connections.

 

参考资料

 

https://docs.mongodb.org/manual