How severe does this issue affect your experience of using Ray? Medium: It contributes to significant difficulty to complete my task, but I can work around it. I start ray cluster using a slurm script. There are some errors when I start cluster but my program can run. The error output in one node…

@xyzyx it looks like your script is trying to start a head node with an external redis server. Is that intentional? (If so, how are you verifying redis is healthy?) If not, you may want your head start command to not include mentions of redis/addresses/ports ray start --head --node-ip-address=$1 -…

Thanks! :smiley: I actually do not want to start with an external redis server. So I do not need to specify --redis-password?

yep that’s correct. in fact, Ray no longer has a hard dependency on redis and won’t use redis by default now.

I’m not including mention of Redis but the error is still here. The command I run is ray start --block --address=$ip_head

Do you mind verifying the version of Ray that you’re using (on both the head and worker nodes?)

heads up @mwtian (who knows more than me)

Same issue on k8s cluster. Have you solved this problem?

What Ray version are you on? And can you share more details about your setup process

@GoingMyWay please do provide a detailed reproduction on K8s if possible.

Start Ray cluster with error but working

Ray Clusters

GoingMyWay July 4, 2022, 10:47am 16

Hi @Dmitri, please see this comment: Ray k8s cluster, cannot run new task when previous task failed - #6 by GoingMyWay

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Start Ray cluster with error but working

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