# Redis Challenge Issue with Handling PING Command Response

**URL:** <https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557>\
**Category:** Challenges\
**Tags:** challenge:redis\
**Created:** [January 31, 2025, 9:03am UTC](https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557 "2025-01-31T09:03:21Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![gregbowers](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/gregbowers/32/4557_2.png) [@gregbowers](https://forum.codecrafters.io/u/gregbowers)\
**Post date:** [January 31, 2025, 9:03am UTC](https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557/1 "2025-01-31T09:03:21Z")

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Hello

I’m currently working on the Redis challenge and have implemented basic command handling, but I’m running into an issue with the `PING` command response. According to the instructions, sending `PING` should return a `+PONG\r\n` response. 🙃

However, when I run my implementation, the tester fails at this stage, stating that the response is incorrect. I’ve checked my string formatting and ensured that I’m appending the correct CRLF characters, but the issue persists. 🙃

I suspect the problem might be related to how my server reads and writes data, or possibly a minor formatting mistake that I haven’t spotted. Has anyone else encountered a similar issue? 🤔 Checked [Redis Challenge: Stuck on Command Processing](https://forum.codecrafters.io/t/redis-challenge-stuck-on-command-processing/726) [MLOps](https://www.igmguru.com/machine-learning-ai/mlops-course-certification) documentation guide for reference .

Any debugging tips or insights on how the tester verifies the response would be greatly appreciated!

Thanks in advance for any help! 🙂

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**Author:** ![andy1li](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andy1li/32/10_2.png) [@andy1li](https://forum.codecrafters.io/u/andy1li)\
**Post date:** [January 31, 2025, 9:03am UTC](https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557/2 "2025-01-31T09:03:21Z")

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Hi, thanks for your post!

I’m currently out of the office and will return on Feb 3. I’ll get back to you as soon as possible after I’m back.

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**Author:** ![andy1li](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andy1li/32/10_2.png) [@andy1li](https://forum.codecrafters.io/u/andy1li)\
**Post date:** [July 8, 2025, 4:59pm UTC](https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557/4 "2025-07-08T16:59:07Z")

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Sorry for the delayed response! Looks like all your repos on our server have been deleted. Let me know if you still need assistance!

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**Author:** ![andy1li](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andy1li/32/10_2.png) [@andy1li](https://forum.codecrafters.io/u/andy1li)\
**Post date:** [July 22, 2025, 6:27pm UTC](https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557/6 "2025-07-22T18:27:03Z")

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Closing this thread due to inactivity. If you still need assistance, feel free to reopen or start a new discussion!

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**Author:** ![system](https://canada1.discourse-cdn.com/flex003/uploads/codecrafters/original/3X/7/0/700657133935c15703e22c7c8870394f6e6dc27d.svg) [@system](https://forum.codecrafters.io/u/system)\
**Post date:** [July 27, 2025, 6:27pm UTC](https://forum.codecrafters.io/t/redis-challenge-issue-with-handling-ping-command-response/4557/7 "2025-07-27T18:27:33Z")

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Closed on July 27, 2025, 6:27pm UTC

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