mongodb集群搭建
env
centos7.9
mongo v3.4.10
环境说明：
192.168.3.10 mo10
192.168.3.11 mo11
192.168.3.12 mo12
mongos3节点分别使用10,11,12机器的20000端口；
configrepl3节点分别使用21000端口
shard1 22001
shard2 22002
shard3 22003
参考资料：https://bbs.huaweicloud.com/blogs/289539
配置confrepl集群
cat>/data/mongodb/mongoconf/conf/mongoconf.conf<<EOF
dbpath=/data/mongodb/mongoconf/data
logpath=/data/mongodb/mongoconf/log/mongoconf.log
logappend=true
port = 21000
maxConns = 1000 #链接数
journal = true #日志开启
journalCommitInterval = 200
fork = true #后台执行
syncdelay = 60
oplogSize = 1000
configsvr = true #配置服务器
replSet=replconf #config server配置集replconf
EOF
** 启动配置集群 **
/opt/mongodb-linux-x86_64-rhel62-3.4.10/bin/mongod -f /data/mongodb/mongoconf/conf/mongoconf.conf
mongo mo10:21000
config = {_id:”replconf”,members:[
{_id:0,host:”192.168.3.10:21000″},
{_id:1,host:”192.168.3.11:21000″},
{_id:2,host:”192.168.3.12:21000″},]
}
rs.initiate(config); #初始化集群
rs.status(); #查看状态
配置shard集群
shard1
cat >/data/mongodb/shard1/conf/shard.conf <<EOF
dbpath=/data/mongodb/shard1/data
logpath = /data/mongodb/shard1/log/shard1.log
port = 22001
logappend = true
nohttpinterface = true
fork = true
oplogSize = 4096
journal = true
smallfiles=true
shardsvr=true #shard服务器
replSet=shard1 #副本集名称shard1
EOF
** 启动 **
mongod -f /data/mongodb/shard1/conf/shard.conf
** 在mo10初始化 **
use admin
config = {_id:”shard1″,members:[
{_id:0,host:”192.168.3.10:22001″},
{_id:1,host:”192.168.3.11:22001″,arbiterOnly:true},
{_id:2,host:”192.168.3.12:22001″},]
}
rs.initiate(config);
rs.status();
shard2
cat >/data/mongodb/shard2/conf/shard.conf <<EOF
dbpath=/data/mongodb/shard2/data
logpath = /data/mongodb/shard2/log/shard2.log
port = 22002
logappend = true
nohttpinterface = true
fork = true
oplogSize = 4096
journal = true
smallfiles=true
shardsvr=true
replSet=shard2
EOF
** 启动 **
mongod -f /data/mongodb/shard2/conf/shard.conf
** 在mo11初始化 **
mongo 192.168.3.11:22002
use admin
config = {_id:”shard2″,members:[
{_id:0,host:”192.168.3.10:22002″},
{_id:1,host:”192.168.3.11:22002″},
{_id:2,host:”192.168.3.12:22002″,arbiterOnly:true},]
}
rs.initiate(config);
rs.status();
shard3
cat >/data/mongodb/shard3/conf/shard.conf <<EOF
dbpath=/data/mongodb/shard3/data
logpath = /data/mongodb/shard3/log/shard3.log
port = 22003
logappend = true
nohttpinterface = true
fork = true
oplogSize = 4096
journal = true
smallfiles=true
shardsvr=true
replSet=shard3
EOF
** 启动 **
mongod -f /data/mongodb/shard3/conf/shard.conf
初始化
mongo 192.168.3.12:22003
use admin
config = {_id:”shard3″,members:[
{_id:0,host:”192.168.3.10:22003″, arbiterOnly:true},
{_id:1,host:”192.168.3.11:22003″},
{_id:2,host:”192.168.3.12:22003″},]
}
rs.initiate(config);
rs.status();
配置mongos路由集群
cat >/data/mongodb/mongos/conf/mongos.conf<<EOF
logpath=/data/mongodb/mongos/log/mongos.log
logappend=true
port = 20000
maxConns = 1000
configdb=replconf/192.168.3.10:21000,192.168.3.11:21000,192.168.3.12:21000 #制定config server集群
fork = true
EOF
** 启动mongos **
mongos -f /data/mongodb/mongos/conf/mongos.conf
** 设置mongos添加分片 **
mongo 192.168.3.10:20000
use admin
db.runCommand({addshard:”shard1/192.168.3.10:22001,192.168.3.11:22001,192.168.3.12:22001″})
db.runCommand({addshard:”shard2/192.168.3.10:22002,192.168.3.11:22002,192.168.3.12:22002″})
db.runCommand({addshard:”shard3/192.168.3.10:22003,192.168.3.11:22003,192.168.3.12:22003″})
测试验证
use admin
建库
db.runCommand( { enablesharding :”igodb”});
指定需要分片的表和ID
db.runCommand( { shardcollection : “igodb.table1″,key : {_id:”hashed”} } )
查看分片信息
db.runCommand({listshards:1});
写入测试数据
use igodb;
for (var i = 1; i <= 10000; i++) db.table1.save({_id:i,”test1″:”testval1″});
查看分片情况
db.table1.stats()
tips
关闭重置mongo_shard集群：
使用localhost(127.0.0.1)登录
mongo localhost:22002
db.adminCommand({ “shutdown” : 1,force: true })
rm -rf /data/mongodb/shard2/data/*
/data/mongodb/shard2/log/shard2.log
export PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/X11R6/bin
export PATH=/opt/mongodb-linux-x86_64-rhel62-3.4.10/bin:$PATH
