Amazon Linux环境下Mongo Shell故障求助：启动无响应

Hey there, let's work through this mongo shell issue you're facing. It's good news that your mongod service starts up without problems using sudo nohup mongod --config /etc/mongodb.conf &—that means your database itself is healthy, and the issue is definitely with the mongo shell binary. Your hunch about the 0-size mongo file being corrupted or deleted is spot-on. Here's how to fix it:

Step 1: Confirm the Problem with the Mongo Shell Binary #

First, let's verify the location and state of your mongo shell executable to be sure:

• Run which mongo to find where the shell binary is installed (usually /usr/bin/mongo).
• Check its file size with ls -lh $(which mongo). If it shows 0 bytes, that confirms the binary is invalid.

Step 2: Reinstall the Mongo Shell #

Since you're on Amazon Linux (an RPM-based system), we'll use YUM to reinstall the shell. Make sure you match the shell version to your running mongod service—mismatched versions can cause compatibility issues.

Option A: If You Already Have MongoDB's YUM Repository Configured #

1. Uninstall the corrupted shell package:

   sudo yum remove mongodb-org-shell
   

2. Reinstall the shell:

   sudo yum install mongodb-org-shell
   

Option B: If You Need to Configure MongoDB's YUM Repository First #

If you don't have MongoDB's repo set up, create a repo file first. Replace 6.0 with your mongod's major version (e.g., 5.0, 4.4) to match:

1. Create the repo file:

   sudo tee /etc/yum.repos.d/mongodb-org-6.0.repo <<EOF
   [mongodb-org-6.0]
   name=MongoDB Repository
   baseurl=https://repo.mongodb.org/yum/amazon/2/mongodb-org/6.0/x86_64/
   gpgcheck=1
   enabled=1
   gpgkey=https://www.mongodb.org/static/pgp/server-6.0.asc
   EOF
   

2. Then follow the uninstall/reinstall steps from Option A.

Step 3: Verify the Fix #

After reinstalling, run the mongo command again. If you're using MongoDB 6.0 or newer, note that the default shell is now mongosh—try that if mongo still doesn't work (some newer packages only include mongosh).

If it still doesn't respond, try running the shell with its absolute path (e.g., /usr/bin/mongo) to rule out PATH issues, and check that your user has execute permissions on the binary with ls -l $(which mongo).

内容的提问来源于stack exchange，提问作者Pfeiff86