H2O Flow is not available from Rstudio Server

[exalate-issue-sync[bot]]

I am launching open source H2O at Rstudio.cloud. Java cluster initializes ok, but I am struggling to launch functioning Flow interface. When trying to run any command in Flow I get error like this:

{code:java} Error calling GET /3/Models HTTP connection failure: status=error, code=404, error=Not Found {code}

The issue has been raised at [Rstudio Community|https://community.rstudio.com/t/launching-localhost-web-apps-in-rstudio-cloud/21078/4] site and confirmed by Rstudio engineer:

{noformat} Okay, I was able to launch Flow and got the same error you did. I tested on a regular RStudio Server Pro instance and saw the same behavior, so this is not an issue with rstudio.cloud itself. h2o Flow appears to make its REST calls with an absolute path such that only the protocol and server are prepended. Which obviously won't work if it is actually being served with leading path elements. {noformat}

Could you please look into this and let us know if anything could be done.

[exalate-issue-sync[bot]]

Michal Kurka commented: For details see the linked discussion

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-6187 Assignee: Michal Raška Reporter: Dmytro Perepolkin State: Open Fix Version: N/A Attachments: N/A Development PRs: N/A