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# prefect-community
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Mini Khosla

04/19/2022, 1:31 PM
I have prefect server 0.15.7 deployed. My flows were running fine a few days back. They seem to not execute properly now as for some of the mapped tasks the server is not able to set the state as Success/Fail. Here is the screen shot. I am running this on a yarn cluster. Any help will be appreciated.
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Kevin Kho

04/19/2022, 1:36 PM
Hi @Mini Khosla, it looks like your hasura version was upgraded. Can you check it? For your version of Prefect I think it should be below 2.0
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Mini Khosla

04/19/2022, 1:39 PM
Ok let me see
Hi @Kevin Kho  graphql-engine:v1.3.3
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Kevin Kho

04/19/2022, 1:48 PM
Is this error intermittent or it happens consistently? I think this might be your API getting too much load?
Like does it work fine for a smaller Flow with mapping?
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Mini Khosla

04/19/2022, 1:53 PM
Intermittent, for a smaller flow runs fine
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Kevin Kho

04/19/2022, 1:58 PM
Ah this just looks like the Apollo service is getting overloaded and you need to give it more resources then
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Mini Khosla

04/19/2022, 2:03 PM
Thanks a lot @Kevin Kho Let me look into it and get back to you if the problem persists
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