MongoDB replica sets搭建及使用
由于机器紧张，没办法搞分片（sharding），而只是用了复制集这个功能，一下介绍下自己这几天的实验。
环境：
目录结构
mongo_data
|--conf
|--config.js
|--rs0.cnf
|--rs1.cnf
|--rs2.cnf
|--data
|--r0
|--r1
|--r2
|--key
|--r0
|--r1
|--r2
|--log
|--r0.log
|--r1.log
|--r2.log
|--run
|--run_config.sh
|--run_rs0.sh
|--run_rs1.sh
|--run_rs2.sh
举几个文件，其他类似：
rs0.cnf：
- replSet=rs1
- keyFile=/home/madding/output/mongodb/replica_set/key/r0
- dbpath=/home/madding/output/mongodb/replica_set/data/r0
- logpath=/home/madding/output/mongodb/replica_set/log/r0.log
- port=10240
config.js:
- var config_rs1={
- _id:'rs1',
- members:[
- {_id:0, host:'127.0.0.1:10240', priority:1},
- {_id:1, host:'127.0.0.1:11240'},
- {_id:2, host:'127.0.0.1:12240'}]
- }
- rs.initiate(config_rs1);
- rs.slaveOk();
- printjson('status info:');
- printjson(rs.status());
- printjson('result info: ');
- printjson(rs.isMaster());
r0:
- ANKDIUOJHKJDLKFJHDOUDOJFKLDJ
随便复杂，保证r0，r1，r2一致即可
run_config.sh:
- !/bin/bash
- MONGODB_HOME=/usr/mytools/mongodb
- $MONGODB_HOME/bin/mongo ../conf/config.js --port 10240 --quiet
- exit
run_rs0.sh:
- #!/bin/bash
- MONGODB_HOME=/usr/mytools/mongodb
- $MONGODB_HOME/bin/mongod -f ../conf/rs0.cnf --logappend --fork
- exit
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