Course 1 Week 4 Programming Assignment 3

Course Q&A Data Engineering Introduction to Data Engineering
1

There was an error after running terraform plan. I tried to redo the assignment many times, and this part always giving me error.

│ Error: Error acquiring the state lock
│
│ Error message: resource temporarily unavailable
│ Lock Info:
│ ID:
│ Path: /home/coder/.local/share/code-server/User/de-c1w4-XXXXXXXXXXX-us-east-1-terraform-state.state
│ Operation: OperationTypePlan
│ Who:
│ Version: 1.9.8
│ Created: 2025-06-11 16:40:15.019620742 +0000 UTC
│ Info:
│
│
│ Terraform acquires a state lock to protect the state from being written
│ by multiple users at the same time. Please resolve the issue above and try
│ again. For most commands, you can disable locking with the “-lock=false”
│ flag, but this is not recommended.

2

@Aloha1 A couple of questions for you:

  • at what step you got this error?
  • did you have to halt any previous terraform commands? (by typing for example CTRL+X)
3

Hi @hawraa.salami ,

Thank you for your response to my post. I got this error after I run the first “terraform plan” command given in the 1.11 instruction.

Thanks.

4

Okay, and regarding my second question,

in step 1.10, did you have to stop or halt that command? Did anything unexpectedly happen in the environment before you received that error?

5

No, I didn’t stop the command (terraform init). It executed successfully.

6

@Aloha1 One last question before I suggest what to do:

you said you redid the assignment many times: did you wait for the two hours to finish and start the lab again and still encounter the same problem?

7

With my first few attempts, it was past 2 hrs before I redid. However, for the last 2 attempts wherein I encountered that error, I didn’t wait for 2 hrs.

Is it possible that if I redo the lab, all the Terraform files are new? I might have accidentally deleted something from the main, outputs, or other files. I noticed that after leaving the lab, the Terraform folder still retains the previous files. But every time I relaunch the lab, shouldn’t the files always be freshly generated?

8

@Aloha1 The lab files do not automatically reset. You would need to do that manually:

  • Either delete all your current files or create a folder (old_lab_files) and then move all your current files to that folder.
  • click on the question mark on the top right
  • click on “get latest version”

You should see the fresh lab files.

9

Thank you. I’m trying it now.

10

The problem is really in the terraform plan. After I ran “terraform init” successfully, I executed terraform plan, and it asked me to enter a value

var.data_lake_bucket
S3 Bucket for Data lake

Enter a value:

var.db_sg_id
Security group ID for RDS

Enter a value:

var.project
Project name

Enter a value:

var.public_subnet_a_id
Public subnet A ID

Enter a value:

var.public_subnet_b_id
Public subnet B ID

Enter a value:

var.recommendations_bucket
S3 Bucket for Recommendations results

Enter a value:

var.region
AWS Region

Enter a value:

var.scripts_bucket
S3 Bucket for Glue scripts

Enter a value:

var.source_host
RDS host

Enter a value:

var.source_username
RDS username

Enter a value:

var.vpc_id
VPC ID

11

@Aloha1 Did you make to run source scripts/setup.sh?

Anytime you got prompted to enter values for terraform variables, you can cut the process (CTRL C) and then run again source scripts/setup.sh

Everytime you open a new terminal, you have to run source scripts/setup.sh

12

Hi @hawraa.salami. I didn’t do that. Let me try it. I don’t get that “Enter a value” if I reboot and try it again. Thanks for your response. I appreciate it.