# Cannot save checkpoint with Ray Tune

**URL:** <https://discuss.ray.io/t/cannot-save-checkpoint-with-ray-tune/4758>\
**Category:** Ray Tune\
**Created:** [January 21, 2022, 3:24pm UTC](https://discuss.ray.io/t/cannot-save-checkpoint-with-ray-tune/4758 "2022-01-21T15:24:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jerry\_Yao](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/jerry_yao/32/2028_2.png) [@Jerry\_Yao](https://discuss.ray.io/u/Jerry_Yao)\
**Post date:** [January 21, 2022, 3:24pm UTC](https://discuss.ray.io/t/cannot-save-checkpoint-with-ray-tune/4758/1 "2022-01-21T15:24:32Z")

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I create a cluster constructed by two phsical server, a docker container named “ray-head” is run on one server, and a docker container named “ray-worker” is run on the other one. I can run distributed parallel ray tune program. But error occures When I wanna save checkpoint, the details as follows:  
ray.tune.error.TuneError: not found after successful sync down. Are you running on a k8s or managed cluster? rsync will not function due to a lack of SSH functionality. You’ll need to use cloud-checkpointing if that’s the case.

But I have no cloud storage, I only own a cluster with two physical servers.  
I have spent a whole day on the problem. Please help me out, thanks in advance.

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**Author:** ![rliaw](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/rliaw/32/24_2.png) [@rliaw](https://discuss.ray.io/u/rliaw)\
**Post date:** [January 23, 2022, 10:48pm UTC](https://discuss.ray.io/t/cannot-save-checkpoint-with-ray-tune/4758/2 "2022-01-23T22:48:48Z")

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Can you install ssh on both machines? And can you make sure you can ssh from one to the other machine?