我发现了一个教程建立一个mongo replica set using docker,我的命令是蒙戈副本集找不到主
创建网络集群
sudo docker network create curator-cluster
创建一个名为mongo1
特定容器,地图27018至27017内并设置名称为rs0
sudo docker run \
-p 27018:27017 \
--name mongo1 \
--net curator-cluster \
mongo mongod --replSet rs0
我的配置,
config = {
"_id" : "rs0",
"members" : [{"_id" : 0, "host" : "mongo1:27017"},
{"_id" : 1, "host" : "mongo2:27017"},
{"_id" : 2, "host" : "mongo3:27017"}]
}
最后,我在3个容器
5949826d5bb1 mongo "/entrypoint.sh mongo" 22 hours ago Up 22 hours 0.0.0.0:27020->27017/tcp mongo3
dcf37866dbb6 mongo "/entrypoint.sh mongo" 22 hours ago Up 22 hours 0.0.0.0:27019->27017/tcp mongo2
14202f76089f mongo "/entrypoint.sh mongo" 22 hours ago Up 22 hours 0.0.0.0:27018->27017/tcp mongo1
的sudo docker exec -it mongo1 mongo
结果是
MongoDB shell version: 3.2.9
connecting to: test
Server has startup warnings:
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten]
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten]
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2016-09-22T10:24:29.655+0000 I CONTROL [initandlisten]
rs0:PRIMARY>
看起来像我有一个主现在,并试图在容器上插入出头(比如说mongo1) ,MongoDB可以很好地同步。
现在我试图用命令连接到集上bryan
数据库(注10.145.168.151
是我的IP)
mongo --host rs0/10.145.168.151:27018,10.145.168.151:27019,10.145.168.151:27020 bryan
我的结果是
MongoDB shell version: 2.6.9
connecting to: rs0/10.145.168.151:27018,10.145.168.151:27019,10.145.168.151:27020/bryan
2016-09-23T16:46:18.819+0800 starting new replica set monitor for replica set rs0 with seeds 10.145.168.151:27018,10.145.168.151:27019,10.145.168.151:27020
2016-09-23T16:46:18.819+0800 [ReplicaSetMonitorWatcher] starting
2016-09-23T16:46:18.819+0800 changing hosts to rs0/mongo1:27017,mongo2:27017,mongo3:27017 from rs0/10.145.168.151:27018,10.145.168.151:27019,10.145.168.151:27020
2016-09-23T16:46:18.820+0800 getaddrinfo("mongo2") failed: Name or service not known
2016-09-23T16:46:18.821+0800 getaddrinfo("mongo1") failed: Name or service not known
2016-09-23T16:46:18.822+0800 getaddrinfo("mongo3") failed: Name or service not known
2016-09-23T16:46:18.822+0800 Error: connect failed to replica set rs0/10.145.168.151:27018,10.145.168.151:27019,10.145.168.151:27020 at src/mongo/shell/mongo.js:148
exception: connect failed
如果我使用的NodeJS(猫鼬),我得到MongoError: no primary found in replicaset
我认为问题是getaddrinfo("mongo2") failed: Name or service not known
所以我的问题是如何解决这个问题。谢谢
你检查了教程中的第一条评论吗? “...因为它无法解析主机上的主机名mongo1-3,所以失败。”解决方案也是详细的,它对你有用吗?我指的是这个网站:http://www.sohamkamani.com/blog/2016/06/30/docker-mongo-replica-set/ – alexbt
谢谢,我错过了这个评论 – Bryan