Struggling after Update to 0 14 12 to start prefect server H

Question

Struggling after Update to 0 14 12 to start prefect server Hi all wave I just upgraded to prefect 0 14 12 from 0 14 4 running server on a machine of us hosting more docker apps so maybe something changed outside of my control as other people use it to start apps too I do connect to the system via VPN which might create more complications After the update my command ```prefect server start use volume d``` is pulling the images creating the network and creating the parts tmp postgres 1 tmp hasura 1 However it never finishes no detach and I do get errors in the logs of tmp apollo 1 ```Trying again in 3 seconds Building schema FetchError request to <http hasura 3001 v1alpha1 graphql> failed reason connect ECONNREFUSED 192 168 64 3 3001 at ClientRequest lt anonymous gt apollo node modules node fetch lib index js 1461 11 at ClientRequest emit events js 315 20 at Socket socketErrorListener http client js 469 9 at Socket emit events js 315 20 at emitErrorNT internal streams destroy js 106 8 at emitErrorCloseNT internal streams destroy js 74 3 at processTicksAndRejections internal process task queues js 80 21 type system errno ECONNREFUSED code ECONNREFUSED Trying again in 3 seconds ``` Not sure what s going on My config is pretty simple too ``` server server database host = localhost port = 5432 host port = 5434 server hasura host = localhost port = 3000 host port = 3001 ``` The micro services seem to be up and running ``` prefect root myserver ~ $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES aec1a48767a3 prefecthq ui core 0 14 12 docker entrypoint 17 minutes ago Up 17 minutes healthy 80 tcp 0 0 0 0 8080 gt 8080 tcp tmp ui 1 2996c1840fe1 prefecthq apollo core 0 14 12 tini g bash c 17 minutes ago Up 17 minutes healthy 0 0 0 0 4200 gt 4200 tcp tmp apollo 1 2263ca7701e6 prefecthq server core 0 14 12 tini g python s 17 minutes ago Up 17 minutes tmp towel 1 ed29fdb1b3b0 prefecthq server core 0 14 12 tini g bash c 17 minutes ago Up 17 minutes healthy 0 0 0 0 4201 gt 4201 tcp tmp graphql 1 2a3dffb7d641 hasura graphql engine v1 3 3 graphql engine serve 17 minutes ago Up 17 minutes healthy 0 0 0 0 3001 gt 3000 tcp tmp hasura 1 cafbde90dc48 postgres 11 docker entrypoint s 17 minutes ago Up 17 minutes healthy 0 0 0 0 5434 gt 5432 tcp tmp postgres 1```

nicholas · Answer

Hi < Christian> by default Prefect Server doesn t detach from the terminal you ll need to use something like `screen` or `nohup` for that are you able to query your endpoint through the browser Navigating to `` should allow you to visit the graphql playground that comes with the server

Christian · Answer

Hi I cannot reach this endpoint After digging through the forums I also changed me setup to this config ``` server server database port = 5432 host port = 5434 server hasura host = port = 3001 host port = 3001 graphql url = http $ server hasura host $ server hasura port v1alpha1 graphql ws url = ws $ server hasura host $ server hasura port v1alpha1 graphql execute retry seconds = 10 server graphql host = port = 4201 host port = 4201 debug = false path = graphql server ui apollo url = ``` I currently see this in the logs when I try to bring up the system ```apollo 1 | Building schema apollo 1 | FetchError request to failed reason connect ECONNREFUSED 192 168 144 3 3001 apollo 1 | at ClientRequest lt anonymous gt apollo node modules node fetch lib index js 1461 11 apollo 1 | at ClientRequest emit events js 315 20 apollo 1 | at Socket socketErrorListener http client js 469 9 apollo 1 | at Socket emit events js 315 20 apollo 1 | at emitErrorNT internal streams destroy js 106 8 apollo 1 | at emitErrorCloseNT internal streams destroy js 74 3 apollo 1 | at processTicksAndRejections internal process task queues js 80 21 apollo 1 | type system apollo 1 | errno ECONNREFUSED apollo 1 | code ECONNREFUSED apollo 1 | ```

nicholas · Answer

That makes sense if the service isn t able to start can you confirm a few things 1 Do you have anything else running on any of those ports that might interfere with service spinup 2 Since you re upgrading your version of Server can you confirm that the database migrations ran

nicholas · Answer

That error message is only a problem if it never resolves that s the apollo service trying to connect to graphql which can sometimes happen before graphql is ready Does the server ever start

Christian · Answer

4200 should be available The migration ran as far as I can tell is there any way to verify this Also I m a bit puzzled by the url reported in the errors ```request to <http hasura 3001 v1alpha1 graphql> failed``` Is this a valid URL

nicholas · Answer

That URL seems fine you ll see `alembic` migrations run on Server startup This looks odd to me is there a reason these ports are different in your config ``` server database port = 5432 host port = 5434 ```

Christian · Answer

I have port 5432 taken by another container After tinkering some more in my config I now see this when I start up ```Starting tmp hasura 1 done ERROR for graphql Container fab6c18bd8fc is unhealthy ERROR Encountered errors while bringing up the project ``` Should I ``` docker system prune a```

nicholas · Answer

That couldn t hurt but what sort of resources are you allocating to Docker We ve seen instances of this when Docker doesn t have enough resources

Christian · Answer

Should be plenty I think I m not the admin on the box MEM LIMIT is 503 8GiB I reverted my tinkering an now the stack comes up but never completes Constant recurrence of the above error message Also cannot reach graphql via the browser bummer

nicholas · Answer

This sounds like you re running into a combination of configuration issues and this one <https github com PrefectHQ prefect issues 4170> if nothing in that thread is helpful would you mind adding some details about your system info to that ticket

Christian · Answer

Sure Will do I ll switch to cloud for the moment but would be good to get a solution to this since we want to use an on prem install Thanks