I have a Shiny app that reads some csv files and runs Stan (CmdstanR), fitting a model with 2 chains. When I run the Shiny App locally on my Laptop in runs with no issues. However if I build a docker image and run on port 3838 the process runs up until this point:
Running MCMC with 2 parallel chains, with 1 thread(s) per chain…
But then crashes.
Warning: Chain 1 finished unexpectedly!
Warning: Chain 2 finished unexpectedly!
Warning: All chains finished unexpectedly! Use the $output(chain_id) method for more information.
Warning: Use read_cmdstan_csv() to read the results of the failed chains.
Warning: No chains finished successfully. Unable to retrieve the fit.
I’m running this on an M1 Mac (Big Sur) maybe not relevant as the model runs with no issues on the Shiny App locally, yet crashes when “dockerized” via:
docker run -it -p 3838:3838 stan_shiny_app
Thanks for the help.
This is cmdstanr version 0.4.0.9000
- Online documentation and vignettes at R Interface to CmdStan • cmdstanr
- CmdStan path set to: /root/.cmdstan/cmdstan-2.27.0
- Use set_cmdstan_path() to change the path
This is posterior version 0.1.7