配置文件
1-3为三个存储节点，其实一个为Primary，两个secondary作为备份，4为仲裁节点
# mongod.conf #where to log logpath=/home/data/db/mongodb2.log logappend=true # fork and run in background fork=true port=33197 dbpath=/home/yuxianda/data/db/db2 # location of pidfile pidfilepath=/home/yuxianda/data/db/mongod2.pid # Listen to local interface only. Comment out to listen on all interfaces. bind_ip=127.0.0.1 #datebase in diffrent file directoryperdb=true # fsync time #syncdelay=5 # Disables write-ahead journaling # nojournal=true # Enables periodic logging of CPU utilization and I/O wait #cpu=true # Turn on/off security. Off is currently the default #noauth=true #auth=true # Verbose logging output. #verbose=true # Inspect all client data for validity on receipt (useful for # developing drivers) #objcheck=true # Enable db quota management #quota=true # Set oplogging level where n is # 0=off (default) # 1=W # 2=R # 3=both # 7=W+some reads #diaglog=0 # Ignore query hints #nohints=true # Enable the HTTP interface (Defaults to port 28017). #httpinterface=true # Turns off server-side scripting. This will result in greatly limited # functionality #noscripting=true # Turns off table scans. Any query that would do a table scan fails. #notablescan=true # Disable data file preallocation. #noprealloc=true # Specify .ns file size for new databases. # nssize=<size> # Replication Options # in replicated mongo databases, specify the replica set name here replSet=android-test # maximum size in megabytes for replication operation log #oplogSize=1024 # path to a key file storing authentication info for connections # between replica set members #keyFile=/path/to/keyfile
执行配置
mongod -f conf.conf
设定副本集合：
mongo --port 33198
use admin
db.runCommand({"replSetInitiate":{
"_id":"android-test",
"members":[
{
"_id":1,
"host":"127.0.0.1:33198"
},
{
"_id":2,
"host":"127.0.0.1:33197"
},
{
"_id":3,
"host":"127.0.0.1:33196"
}
]}})
增加仲裁节点
rs.addArb("127.0.0.1:33195")
#!/usr/bin/env python #-*- encoding:utf-8 -*- from pymongo import MongoClient, MongoReplicaSetClient dbList = '127.0.0.1:33198,127.0.0.1:33197,127.0.0.1:33196' def init(dbname): try: client = MongoReplicaSetClient(dbList, replicaSet='android- test') db = client[dbname] return db except Exception as e: print 'error:%s'%e return False if __name__ == '__main__': db = init('test') print db.appinfo.find_one()
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