Preparation environment:
Operating system: Debian
Debian download
Cdimage.debian.org/mirror/cdim…
Select the first download
Three Debian VM systems have been installed and their IP addresses have been set to
192.168.43.11, 192.168.43.12, 192.168.43.13.
The network configuration is set to bridge mode, and the IP address must be in the same network segment. My mobile phone’s hot network segment is 192.168.43.xxx
Obtain the mongodb installation package: mongodb-linux-x86_64-debian92-4.2.1. TGZ
Link: pan.baidu.com/s/1HaWJa-EQ… Password: diil
How to install Debian
Jingyan.baidu.com/article/6d7…
The first step
Add software sources for Debian:
nano /etc/apt/sources.list
Copy the codeAdd the USTC source
# source at hkustdeb http://mirrors.ustc.edu.cn/debian/ stretch main non-free contrib deb http://mirrors.ustc.edu.cn/debian/ stretch-updates main non-free contrib deb http://mirrors.ustc.edu.cn/debian/ stretch-backports main non-free contrib deb-src http://mirrors.ustc.edu.cn/debian/ stretch main non-free contrib deb-src http://mirrors.ustc.edu.cn/debian/ stretch-updates main non-free contrib deb-src http://mirrors.ustc.edu.cn/debian/ stretch-backports main non-free contrib deb http://mirrors.ustc.edu.cn/debian-security/ stretch/updates main non-free contrib deb-src http://mirrors.ustc.edu.cn/debian-security/ stretch/updates main non-free contribCopy the codeCTRL + X, press Y to save
The second step
In this step, all three machines need to do the following operations
Note that each machine has shareD1,shared2, shareD3 directories and configuration files, this is only 3 shards, does not matter how many hosts! We’re also going to have 5 shards and 6 shards is fine.
Update the source:
apt-get update
Copy the codeInstall libcurl4:
apt-get install libcurl4-openssl-dev
Copy the codeRun the following command to upload mongodb-linux-x86_64-debian92-4.2.1. TGZ to the /usr/local directory:
cd /usr/localTar -zxvf mongodb-linux-x86_64-debian92-4.2.1. TGZ mv mongodb-linux-x86_64-debian92-4.2.1cd mongodb
mkdir -p /usr/local/mongodb/db
mkdir -p /usr/local/mongodb/log
chmod 777 db log
mkdir -p /usr/local/mongodb/shared1/db
mkdir -p /usr/local/mongodb/shared1/log
mkdir -p /usr/local/mongodb/shared2/db
mkdir -p /usr/local/mongodb/shared2/log
mkdir -p /usr/local/mongodb/shared3/db
mkdir -p /usr/local/mongodb/shared3/log
mkdir -p /usr/local/mongodb/mongos
Copy the codeCreate the mongodb configuration file, and the sharded 3 configuration files, and the routing service Mongos configuration file:
cd /usr/local/mongodb
touch mongodb.conf shared1.conf shared2.conf shared3.conf mongos.conf
Copy the codeNext edit the configuration file:
cd /usr/local/mongodb
Copy the codenano mongodb.conf
Copy the codeAdd the following:
pidfilepath=/usr/local/mongodb/log/configsvr.pid
dbpath=/usr/local/mongodb/db
logpath=/usr/local/mongodb/log/mongodb.log
logappend=trueBind_ip = 0.0.0.0 port = = 27017 forktrue
auth=false
journal=true
storageEngine=wiredTiger
configsvr=true
replSet=configs
maxConns=10000
Copy the codeCTRL + X, press Y to save Enter
Edit shared1. Conf shared2. Conf shared3. Conf configuration file
nano shared1.conf
Copy the codeAdd the following:
pidfilepath=/usr/local/mongodb/shared1/log/shared1.pid
dbpath=/usr/local/mongodb/shared1/db
logpath=/usr/local/mongodb/shared1/log/shared1.log
logappend = trueBind_ip = 0.0.0.0 port = 30001 fork =true
replSet=shared1
shardsvr = true
maxConns=10000
storageEngine=wiredTiger
Copy the codenano shared2.conf
Copy the codeAdd the following:
pidfilepath=/usr/local/mongodb/shared2/log/shared2.pid
dbpath=/usr/local/mongodb/shared2/db
logpath=/usr/local/mongodb/shared2/log/shared2.log
logappend = trueBind_ip = 0.0.0.0 port = 30002 fork =true
replSet=shared2
shardsvr = true
maxConns=10000
storageEngine=wiredTiger
Copy the codenano shared3.conf
Copy the codeAdd the following:
pidfilepath=/usr/local/mongodb/shared3/log/shared3.pid
dbpath=/usr/local/mongodb/shared3/db
logpath=/usr/local/mongodb/shared3/log/shared3.log
logappend = trueBind_ip = 0.0.0.0 port = 30003 fork =true
replSet=shared3
shardsvr = true
maxConns=10000
storageEngine=wiredTiger
Copy the codeConfiguring the routing service configuration file:
nano mongos.conf
Copy the codeAdd the following:
pidfilepath = /usr/local/mongodb/mongos/log/mongos.pid
logpath = /usr/local/mongodb/mongos/log/mongos.log
logappend = trueBind_ip = 0.0.0.0 port = 40000 fork =trueConfigdb = configs / 192.168.43.11:27017192168 43.12:27017192168 43.13:27017 maxConns = 10000Copy the codeThe above configuration of 3 machines should be configured
After the configuration is complete, run the following command on all three hosts to start the mongodb service:
cd /usr/local/mongodb/bin
./mongod -f /usr/local/mongodb/mongodb.conf
Copy the codeThe third step
On one of the hosts, select the first host
cd /usr/local/mongodb/bin
Copy the codeConnect the mongo
/mongo --host 192.168.43.11 --port 27017Copy the codeSwitching databases
use admin
Copy the codeInitialize a replication set
rs.initiate({_id:"configs",members:[{_id:0,host:"192.168.43.11:27017"},{_id:1,host:"192.168.43.12:27017"}, {_id:2,host:"192.168.43.13:27017"}]})
Copy the codeConfigs with the _id:”configs” is the name of the replication set in the mongodb.conf configuration file, which consists of the configuration services of the three servers
Check the status
rs.status()
Copy the codeWait for dozens of seconds, run the above command to check the status, the configuration service of the three machines has formed a replication set, one of which is PRIMARY, and the other two are SECONDARY
The fourth step
In this step, all three machines need to do the following operations
./mongod -f /usr/local/mongodb/shared1.conf
./mongod -f /usr/local/mongodb/shared2.conf
./mongod -f /usr/local/mongodb/shared3.conf
Copy the codeStep 5
Operating on one of the hosts:
Connect the mongo:
/mongo --host 192.168.43.11 --port 30001Copy the codeSwitching databases
use admin
Copy the codeInitialize a replication set
rs.initiate({_id:"shared1",members:[{_id:0,host:"192.168.43.11:30001"},{_id:1,host:"192.168.43.12:30001"},{_id:2,host:"192.168.43.13:30001"}]})
Copy the codeThe following is the same, but the ports are different
/mongo --host 192.168.43.11 --port 30002 use admin rs. Initiate ({_id:"shared2",members:[{_id:0,host:"192.168.43.11:30002"},{_id:1,host:"192.168.43.12:30002"},{_id:2,host:"192.168.43.13:30002"}]})
Copy the code/mongo --host 192.168.43.11 --port 30003 Use admin rs. Initiate ({_id:"shared3",members:[{_id:0,host:"192.168.43.11:30003"},{_id:1,host:"192.168.43.12:30003"},{_id:2,host:"192.168.43.13:30003"}]})
Copy the codeStep 6
This step is performed on three machines
Routing Service Deployment
./mongos -f /usr/local/mongodb/mongos.conf
Copy the codeStep 7
Operating on one of the hosts:
Enable sharding:
Connect the mongo:
/mongo --host 192.168.43.11 --port 40000Copy the codeSwitching databases
use admin
Copy the codeAdding sharding is done on a single machine
sh.addShard("Shared1/192.168.43.11:30001192168 43.12:30001192168 43.13:30001")
sh.addShard("Shared2/192.168.43.11:30002192168 43.12:30002192168 43.13:30002")
sh.addShard("Shared3/192.168.43.11:30003192168 43.12:30003192168 43.13:30003")
Copy the codeView cluster status:
mongos> sh.status()
Conf, shared{1/2/3}. Conf, replSet= XXX in the configuration file must be commented out. It depends on which database is connected to perform operations. Generally, write operations to the database are connected to the database of the routing service
Create a database and table at the routing node 192.168.43.13
It is found that all hosts have synchronized data in the shard database shared2.
Whether it is assigned to shareD1 or shareD2 or shareD3 is indeterminate and random.
Test writing data: use test
for(i=1; i<=30000; i++){db.user.insert({“id”:i,”name”:”jack”+i})}
It can also be executed by 3 machines at the same time, one machine inserts 10000 pieces of data, which can save a lot of time