MongoDB:由于分片套接字异常而无法在本地主机上分片 [英] MongoDB: can't shard on localhost because of shard socket exception

问题描述

我正在尝试MongoDB的碎片教程，简单的测试(概念验证项目).

I'm trying the MongoDB's shard tutorial, for some simple testing (proof-of-concept project).

我想在单台机器上尝试分片.这可能和/或有意义吗?

I want to try sharding on a single machine. Is this possible and/or does it make any sense?

当我按照指导步骤操作时，它不起作用.

When I follow the guide steps, it does not work.

首先，我在计算机上启动mongod configsrv数据库实例:

First, I start the mongod configsrv database instances on my machine:

bin/mongod --configsvr --dbpath $BASEDIR/data/configdb --port 27019 &
bin/mongod --configsvr --dbpath $BASEDIR/data/configdb1 --port 27020 &
bin/mongod --configsvr --dbpath $BASEDIR/data/configdb2 --port 27021 &

然后，我启动mongos实例，以便它们绑定"到配置服务器:

Then, I start the mongos instances so that they "bind" to the config servers:

HOST=$(uname -n) # my machine's name
# starts on default poort 27017
bin/mongos --configdb $HOST:27019,$HOST:27020,$HOST:27021 

直到这里，一切看起来都很好.

Until here, everything looks good.

现在我想向集群添加碎片:

Now I want to add a Shard to the cluster:

bin/mongo --host $(uname -n)

它进入MongoDB shell.

It enters the MongoDB shell.

连接到:my.machine.name:27017/test

connecting to: my.machine.name:27017/test

但是当我尝试添加新的分片时，出现以下错误:

But when I try to add a new shard, I have the following error:

mongos> sh.addShard( "rs1/my.machine.name:27017" )
{
    "ok" : 0,
    "errmsg" : "couldn't connect to new shard socket exception [CONNECT_ERROR] for rs1/my.machine.name:27017"
}

我尝试使用ip，机器的别名，本地主机...似乎没有任何作用.

I have tried with ip, machine's alias, localhost ... nothing seems to work.

有人可以帮助我吗?也许我遗漏了一点.

Anyone could help me on this? Maybe I'm missing a point.

预先感谢

推荐答案

我遇到了同样的问题，必须运行

I had the same problem, you have to run

mongod&

mongod &

在每个分片上

然后您可以致电

sh.addShard("rs1/my.machine.name:27017")

sh.addShard( "rs1/my.machine.name:27017" )

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