mongodb 数据库 linux系统下集群搭建过程
mongodb的集群结构如上图
网上有个mongo3.0的集群例子：
用openssl生成一个key,用于mongo集群内部数据通迅
mongod配置为件(config与shard通用)
mongo_node.conf:
engine: wiredTiger
directoryPerDB: true
journal:
enabled: true
systemLog:
destination: file
logAppend: true
operationProfiling:
slowOpThresholdMs: 10000
replication:
oplogSizeMB: 10240
processManagement:
fork: true
security:
authorization: “disabled”
mongos的配置文件(即图中的route)
mongos.conf:
destination: file
logAppend: true
processManagement:
fork: true
启动config集群(3个mongod进程)
KEYFILE=$WORK_DIR/key/keyfile
cat $KEYFILE
CONFFILE=$WORK_DIR/conf/mongo_node.conf
cat $CONFFILE
MONGOD=mongod
echo $MONGOD
$MONGOD –port 26001 –bind_ip_all –configsvr –replSet configReplSet –keyFile $KEYFILE –dbpath $WORK_DIR/config_cluster/conf_n1/data –pidfilepath $WORK_DIR/config_cluster/conf_n1/db.pid –logpath $WORK_DIR/config_cluster/conf_n1/db.log –config $CONFFILE
$MONGOD –port 26002 –bind_ip_all –configsvr –replSet configReplSet –keyFile $KEYFILE –dbpath $WORK_DIR/config_cluster/conf_n2/data –pidfilepath $WORK_DIR/config_cluster/conf_n2/db.pid –logpath $WORK_DIR/config_cluster/conf_n2/db.log –config $CONFFILE
$MONGOD –port 26003 –bind_ip_all –configsvr –replSet configReplSet –keyFile $KEYFILE –dbpath $WORK_DIR/config_cluster/conf_n3/data –pidfilepath $WORK_DIR/config_cluster/conf_n3/db.pid –logpath $WORK_DIR/config_cluster/conf_n3/db.log –config $CONFFILE
启动成功后
用命令mongo –port 26001 –host 127.0.0.1
如下图,进入mongo的shell
在shell中输入如下js代码 设置config集群
_id:”configReplSet”,
configsvr: true,
members:[
{_id:0, host:’127.0.0.1:26001′},
{_id:1, host:’127.0.0.1:26002′},
{_id:2, host:’127.0.0.1:26003′}
]};
rs.initiate(cfg);
三个config mongo进程会自动选出一个primary,过一会再进入shell就会发现 shell提示变成primary
顺便给config添加一个admin用户,(一个集群只要在primary进程添加一次,会自动同步给secondary)
db.createUser({
user:’admin’,pwd:’123456′,
roles:[
{role:’clusterAdmin’,db:’admin’},
{role:’userAdminAnyDatabase’,db:’admin’},
{role:’dbAdminAnyDatabase’,db:’admin’},
{role:’readWriteAnyDatabase’,db:’admin’}
]})
同样之后shard也做同样的添加用户操作,便于后继观察数据
启动shard
KEYFILE=$WORK_DIR/key/keyfile
cat $KEYFILE
CONFFILE=$WORK_DIR/conf/mongo_node.conf
cat $CONFFILE
MONGOD=mongod
echo $MONGOD
echo “start shard1 replicaset”
$MONGOD –port 27001 –bind_ip_all –shardsvr –replSet shard1 –keyFile $KEYFILE –dbpath $WORK_DIR/shard1/sh1_n1/data –pidfilepath $WORK_DIR/shard1/sh1_n1/db.pid –logpath $WORK_DIR/shard1/sh1_n1/db.log –config $CONFFILE
$MONGOD –port 27002 –bind_ip_all –shardsvr –replSet shard1 –keyFile $KEYFILE –dbpath $WORK_DIR/shard1/sh1_n2/data –pidfilepath $WORK_DIR/shard1/sh1_n2/db.pid –logpath $WORK_DIR/shard1/sh1_n2/db.log –config $CONFFILE
$MONGOD –port 27003 –bind_ip_all –shardsvr –replSet shard1 –keyFile $KEYFILE –dbpath $WORK_DIR/shard1/sh1_n3/data –pidfilepath $WORK_DIR/shard1/sh1_n3/db.pid –logpath $WORK_DIR/shard1/sh1_n3/db.log –config $CONFFILE
用mongo –port 27001 –host 127.0.0.1进入mongo shell
_id:”shard1″,
members:[
{_id:0, host:’127.0.0.1:27001′},
{_id:1, host:’127.0.0.1:27002′},
{_id:2, host:’127.0.0.1:27003′}
]};
rs.initiate(cfg);
同样用之前的添加用户的js
并用同样的方法启动shard2集群,用于实验数据分片
对应的目录与分片名改成shard2
启动route
KEYFILE=$WORK_DIR/key/keyfile
cat $KEYFILE
CONFFILE=$WORK_DIR/conf/mongos.conf
cat $CONFFILE
MONGOS=mongos
echo $MONGOS
echo “start mongos route instances”
$MONGOS –port=25001 –bind_ip_all –configdb configReplSet/127.0.0.1:26001,127.0.0.1:26002,127.0.0.1:26003 –keyFile $KEYFILE –pidfilepath $WORK_DIR/route/r_n1/db.pid –logpath $WORK_DIR/route/r_n1/db.log –config $CONFFILE
$MONGOS –port 25002 –bind_ip_all –configdb configReplSet/127.0.0.1:26001,127.0.0.1:26002,127.0.0.1:26003 –keyFile $KEYFILE –pidfilepath $WORK_DIR/route/r_n2/db.pid –logpath $WORK_DIR/route/r_n2/db.log –config $CONFFILE
$MONGOS –port 25003 –bind_ip_all –configdb configReplSet/127.0.0.1:26001,127.0.0.1:26002,127.0.0.1:26003 –keyFile $KEYFILE –pidfilepath $WORK_DIR/route/r_n3/db.pid –logpath $WORK_DIR/route/r_n3/db.log –config $CONFFILE
路由添加分片
用mongo –port 25001 –host 127.0.0.1 -u admin -p 123456进入shell
或者这样也可 mongo mongodb://admin:123456@127.0.0.1:25001
在mongo shell分别执行以下两行js
创建一个mongo database与collection
并设置分片
sh.enableSharding(“test”)
db.createCollection(“test_shard”)
sh.shardCollection(“test.test_shard”, {_id:”hashed”}, false, { numInitialChunks: 4} )
在mongo shell用以下js添加数据，可以修改循环次数避免测试时间过长
for(var i=0; i<1000; i++){
var dl = [];
for(var j=0; j<100; j++){
dl.push({
“bookId” : “BBK-” + i + “-” + j,
“type” : “Revision”,
“version” : “IricSoneVB0001”,
“title” : “Jackson’s Life”,
“subCount” : 10,
“location” : “China CN Shenzhen Futian District”,
“author” : {
“name” : 50,
“email” : “RichardFoo@yahoo.com”,
“gender” : “female”
},
“createTime” : new Date()
});
}
cnt += dl.length;
db.test_shard.insertMany(dl);
print(“insert “, cnt);
}
在windows下安装mongodb，利用自带的compass客户端观察两个shard集群
会发现数据分流到两个集群了
也可以直接连route观察数据
补充：
把js存到文件里给shell执行会比较方便
执行js命令如下:
mongo mongodb://admin:123456@127.0.0.1:25001 ./test.js
示例js代码:
conn = new Mongo(“mongodb://admin:123456@192.168.2.129:25001”);
db = conn.getDB(“testjs”)
sh.enableSharding(“testjs”)
db.createCollection(“testjs_col”)
sh.shardCollection(“testjs.testjs_col”, {_id:”hashed”}, false, { numInitialChunks: 4} )
var dl = [];
for(var j=0; j<10; j++){
dl.push({
“bookId” : “BBK-” + 0 + “-” + j,
“type” : “Revision”,
“version” : “IricSoneVB0001”,
“title” : “Jackson’s Life”,
“subCount” : 10,
“location” : “China CN Shenzhen Futian District”,
“author” : {
“name” : 50,
“email” : “RichardFoo@yahoo.com”,
“gender” : “female”
},
“createTime” : new Date()
});
}
db.testjs_col.insertMany(dl);
cursor = db.testjs_col.find();
printjson(cursor.toArray());
到此这篇关于mongodb linux下集群搭建的文章就介绍到这了,更多相关mongodb集群搭建内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持！
