MongoDB正在运行，但无法使用Shell连接 [英] MongoDB running but can't connect using shell

问题描述

带有MongoDB 2.0.1的CentOS 5.x Linux(尝试了主版本和旧版静态版本)

CentOS 5.x Linux with MongoDB 2.0.1 (tried main and legacy-static)

MongoDB正在运行:

MongoDB is running:

root     31664  1.5  1.4  81848 11148 ?        Sl   18:40   0:00 ./mongod -f mongo.conf -vvvvv --fork

使用简单的shell连接来访问服务器失败:

Using a simple shell connect to get to the server fails:

[root@xxxx bin]# ./mongo
MongoDB shell version: 2.0.1
connecting to: test
Mon Oct 31 18:41:32 Error: couldn't connect to server 127.0.0.1 shell/mongo.js:84
exception: connect failed

端口28017上的Web界面可以很好地加载，就像使用远程Linux主机上的MongoDB shell一样.也可以通过telnet到localhost:27017，这意味着没有端口被阻止.该计算机上也没有运行SELinux.我也尝试过明确地指定localhost:2017/db无济于事.

The web interface on port 28017 loads fine, as does using the MongoDB shell from a remote Linux host. Can also telnet to localhost:27017, which means no ports are blocked. There is no SELinux running on this machine as well. I have also tried explicitly specifying localhost:2017/db to no avail.

$ ./mongo remote-ip:27017
MongoDB shell version: 2.0.1
connecting to: remote-ip:27017/test
> show dbs
local   0.03125GB
>

有关该主题的日志完全没有内容:

Logs are completely mum on the subject:

.....
Mon Oct 31 18:40:34 [initandlisten] fd limit hard:1024 soft:1024 max conn: 819
Mon Oct 31 18:40:34 [initandlisten] waiting for connections on port 27017
Mon Oct 31 18:40:34 BackgroundJob starting: snapshot
Mon Oct 31 18:40:34 BackgroundJob starting: ClientCursorMonitor
Mon Oct 31 18:40:34 BackgroundJob starting: PeriodicTask::Runner
Mon Oct 31 18:40:34 [websvr] fd limit hard:1024 soft:1024 max conn: 819
Mon Oct 31 18:40:34 [websvr] admin web console waiting for connections on port 28017

放置mongo shell客户端仅显示一个有问题的调用:

Stracing the mongo shell client shows only one problematic call:

[pid 31708] connect(4, {sa_family=AF_INET, sin_port=htons(27017), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 EBADF (Bad file descriptor)

文件系统干净，没有ulimit限制(以root身份运行以进行测试).从strace可以看到，mongo客户端正在尝试通过TCP(AF_INET)连接，但是由于它是本地的，并且MongoDB创建了文件套接字，是否有办法告诉客户端通过它进行连接?还是更好，为什么客户会抛出EBADF?

Filesystem is clean, no ulimit restrictions (running as root for testing). I can see from the strace that the mongo client is trying to connect via TCP (AF_INET), but since it is local and MongoDB creates a file socket, is there a way to tell the client to connect through that instead? Or better yet, why would the client be throwing a EBADF?

我的基本Mongo conf:

My basic Mongo conf:

dbpath=/root/mongodb-linux-i686-2.0.1/data
logpath=/root/mongodb-linux-i686-2.0.1/logs/mongo.log
slowms=15
rest=1

推荐答案

我认为此版本的mongoDb客户端缺少一些默认配置.尝试运行:

I think there is some default config what is missing in this version of mongoDb client. Try to run:

mongo 127.0.0.1:27017

这很奇怪，但是后来我感觉到问题消失了:)(所以简单的命令"mongo"没有任何参数对我又开始起作用了)

It's strange, but then I've experienced the issue went away :) (so the simple command 'mongo' w/o any params started to work again for me)

[Ubuntu Linux 11.10 x64 / MongoDB 2.0.1]

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