tom dinh's questions

我试图连接到我的 EC2 实例上的 MongoDB。我可以通过以下语句连接到使用公共 dns：

mongoClient = new MongoClient("ec2-3-92-197-163.compute-1.amazonaws.com", 27021);

但如果我尝试用私有 IP 地址替换“ec2-3-92 ....”，如下所示：

mongoClient = new MongoClient("172.31.90.193", 27021);

它给了我错误：

信息：连接到服务器 172.31.90.193:27021 com.mongodb.MongoSocketOpenException 时，监视器线程出现异常：在 com.mongodb.internal 的 com.mongodb.internal.connection.SocketStream.open(SocketStream.java:70) 处打开套接字时出现异常。 connection.InternalStreamConnection.open(InternalStreamConnection.java:126) at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:117) at java.base/java.lang.Thread.run(Thread.java: 844）由：java.net.SocketTimeoutException：在 java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:400) 处的 java.base/java.net.PlainSocketImpl.socketConnect(Native Method) 处连接超时java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:243) 在 java。base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:225) at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:402) at java.base/java.net.Socket.connect(Socket. java:591) 在 com.mongodb.internal.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:64) 在 com.mongodb.internal.connection.SocketStream.initializeSocket(SocketStream.java:79) 在 com.mongodb.internal.connection .SocketStream.open(SocketStream.java:65) ... 还有 3 个com.mongodb.internal.connection.SocketStream.open(SocketStream.java:65) 上的 SocketStream.initializeSocket(SocketStream.java:79) ... 还有 3 个com.mongodb.internal.connection.SocketStream.open(SocketStream.java:65) 上的 SocketStream.initializeSocket(SocketStream.java:79) ... 还有 3 个

线程“main”com.mongodb.MongoTimeoutException 中的异常：等待连接时在 30000 毫秒后超时。集群状态的客户端视图是 {type=UNKNOWN, servers=[{address=172.31.90.193:27021, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketOpenException: Exception opening socket}, 由 {java. net.SocketTimeoutException: 连接超时}}] 在 com.mongodb.internal.connection.BaseCluster.getDescription(BaseCluster.java:182) 在 com.mongodb.internal.connection.SingleServerCluster.getDescription(SingleServerCluster.java:41) 在 com .mongodb.client.internal.MongoClientDelegate.getConnectedClusterDescription(MongoClientDelegate.java:136) 在 com.mongodb.client.internal.MongoClientDelegate.createClientSession(MongoClientDelegate.java:94) 在 com.mongodb.client.internal。

我是否缺少某些东西阻止我使用私有 IP 地址连接到 mongo？

我已经设置了入站规则，如下所示：

这就是我的 mongod.conf 文件的样子：

  # mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# where to write logging data. systemLog:   destination: file   logAppend: true   path: /var/log/mongodb/mongod.log

# Where and how to store data. storage:   dbPath: /var/lib/mongo   journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:

# how the process runs processManagement:   fork: true  # fork and run in background   pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile   timeZoneInfo: /usr/share/zoneinfo

# network interfaces net:   port: 27017
#  bindIp: 172.31.90.193  # Enter 0.0.0.0,:: to bind to all IPv4 and IPv6 addresses or, alternatively, use the net.bindIpAll setting.

#security:

#operationProfiling:

replication:   replSetName: Midterm sharding:   clusterRole: configsvr
## Enterprise-Only Options

#auditLog:

#snmp:

注意：我没有在我的管理员数据库集合中设置任何权限或添加凭据。

我已将分片添加到现有集群，当我执行 db.printShardingStatus() 时，我看到了一个分布：

mongos> db.printShardingStatus()
--- Sharding Status --- 
  sharding version: {
    "_id" : 1,
    "minCompatibleVersion" : 5,
    "currentVersion" : 6,
    "clusterId" : ObjectId("5c84149e75f51a74e9796add")
  }
  shards:
        {  "_id" : "shard0000",  "host" : "127.0.0.1:27023",  "state" : 1 }
        {  "_id" : "shard0001",  "host" : "127.0.0.1:27024",  "state" : 1 }
        {  "_id" : "shard0002",  "host" : "localhost:27025",  "state" : 1 }
  active mongoses:
        "4.0.6" : 1
  autosplit:
        Currently enabled: yes
  balancer:
        Currently enabled:  yes
        Currently running:  no
        Failed balancer rounds in last 5 attempts:  3
        Last reported error:  Error connecting to localhost:27025 (127.0.0.1:27025) :: caused by :: Connection refused
        Time of Reported error:  Sat Mar 09 2019 20:55:55 GMT+0000 (UTC)
        Migration Results for the last 24 hours: 
                8 : Success
  databases:
        {  "_id" : "config",  "primary" : "config",  "partitioned" : true }
                config.system.sessions
                        shard key: { "_id" : 1 }
                        unique: false
                        balancing: true
                        chunks:
                                shard0000   1
                        { "_id" : { "$minKey" : 1 } } -->> { "_id" : { "$maxKey" : 1 } } on : shard0000 Timestamp(1, 0) 
        {  "_id" : "testdb",  "primary" : "shard0001",  "partitioned" : true,  "version" : {  "uuid" : UUID("68b7f8fe-17f6-4049-87ce-6c616c7746b7"),  "lastMod" : 1 } }
                testdb.testcollection
                        shard key: { "testkey" : 1 }
                        unique: false
                        balancing: true
                        chunks:
                                shard0000   3
                                shard0001   3
                                shard0002   1
                        { "testkey" : { "$minKey" : 1 } } -->> { "testkey" : "key0" } on : shard0002 Timestamp(9, 0) 
                        { "testkey" : "key0" } -->> { "testkey" : "key20968" } on : shard0000 Timestamp(7, 1) 
                        { "testkey" : "key20968" } -->> { "testkey" : "key4265" } on : shard0000 Timestamp(4, 0) 
                        { "testkey" : "key4265" } -->> { "testkey" : "key53621" } on : shard0000 Timestamp(6, 0) 
                        { "testkey" : "key53621" } -->> { "testkey" : "key64595" } on : shard0001 Timestamp(5, 1) 
                        { "testkey" : "key64595" } -->> { "testkey" : "key8552" } on : shard0001 Timestamp(9, 1) 
                        { "testkey" : "key8552" } -->> { "testkey" : { "$maxKey" : 1 } } on : shard0001 Timestamp(4, 1) 

但是当我访问新添加的分片（shard0002）时，集合是空的？有谁知道为什么？

我正在尝试拆分我的收藏。当我执行命令时：

sh.enableSharding("testdb")

我得到：

{
    "ok" : 1,
    "operationTime" : Timestamp(1552083125, 2),
    "$clusterTime" : {
        "clusterTime" : Timestamp(1552083125, 2),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    }
}

现在，当我尝试使用以下命令对我的集合进行分片时：“sh.shardCollection("testdb.testcollection", {testkey:1})”

我收到错误：

{
    "ok" : 0,
    "errmsg" : "Cannot accept sharding commands if not started with --shardsvr",
    "code" : 193,
    "codeName" : "NoShardingEnabled",
    "operationTime" : Timestamp(1552083136, 4),
    "$clusterTime" : {
        "clusterTime" : Timestamp(1552083136, 4),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    }
}

我检查了分片的状态，看起来它是成功的：

sh.status()
--- Sharding Status --- 
  sharding version: {
    "_id" : 1,
    "minCompatibleVersion" : 5,
    "currentVersion" : 6,
    "clusterId" : ObjectId("5c82df7b7a98360e9dd3c5da")
  }
  shards:
        {  "_id" : "shard0000",  "host" : "127.0.0.1:27023",  "state" : 1 }
        {  "_id" : "shard0001",  "host" : "127.0.0.1:27024",  "state" : 1 }
  active mongoses:
        "4.0.6" : 1
  autosplit:
        Currently enabled: yes
  balancer:
        Currently enabled:  yes
        Currently running:  no
        Failed balancer rounds in last 5 attempts:  0
        Migration Results for the last 24 hours: 
                No recent migrations
  databases:
        {  "_id" : "config",  "primary" : "config",  "partitioned" : true }
        {  "_id" : "testdb",  "primary" : "shard0000",  "partitioned" : true,  "version" : {  "uuid" : UUID("ed327ab3-1de9-4a0a-89f5-8d0bf81015fc"),  "lastMod" : 1 } }

那么为什么当我尝试 shardCollection 时会出现该错误？我在 mongos 实例中运行所有这些

我正在尝试初始化主节点具有特定域：端口配对的副本集 sp。我想要的是：

“vagrant-ubuntu-trusty-64:27022”

但我得到的是：

“本地主机：27022”

这是我用来启动 mongo 实例的命令：

sudo mongod --port 27022 --dbpath /db/config/data --configsvr --replSet config

这是我用来访问 mongo 实例的方法：

蒙戈——端口 27022

我试图修改我的主机文件以将域名添加到默认域 127.0.0.1，但是没有用。

127.0.0.1 localhost
127.0.0.1 vagrant-ubuntu-trusty-64
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

初始化 mongo 实例时如何获得特定的“vagrant-ubuntu-trusty-64:27022”配对？