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Support running as a hosted web server instance #308

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barbeau opened this issue Nov 6, 2017 · 4 comments · May be fixed by #323
Open

Support running as a hosted web server instance #308

barbeau opened this issue Nov 6, 2017 · 4 comments · May be fixed by #323
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@Suryakandukoori
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bug enhancement
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v1.0

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@barbeau
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barbeau commented Nov 6, 2017

Summary:

We currently have a hosted instance of the validator at http://transittools.forest.usf.edu/, but it's just a running instance of the JAR snapshot, which means that it's using Hibernate with HSQLDB. This gets unstable when running in production and inserting a lot of data. Plus, this virtualized machine only has 4GB of RAM.

There are a number of options for a permanent hosted instance of the validator. Ideally we'd get it running on a platform-as-a-service like Amazon Lamba (etc.) or Google App Engine, as there should be relatively low traffic and both of those services have a free tier. However, I believe both of the above require changes to the project to leverage Hibernate.

For now, I believe the most straight-forward path for something stable in the near term will be to leverage another internal server at CUTR for hosting the database server, which will free up transittools for just the validator.

@Suryakandukoori I believe the other CUTR virtualized machine already has MS SQL Server running on it, so let's just re-use this instead of installing a new DBMS (e.g., MySQL).
@barbeau barbeau added this to the v1.0 milestone Nov 6, 2017
@barbeau barbeau changed the title Setting up hosted instance using CUTR server Set up hosted instance using CUTR server Nov 13, 2017
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barbeau commented Nov 22, 2017 •
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Link to more documentation on setting up Hibernate for MS SQL Server (and other databases too):
https://github.com/CUTR-at-USF/gtfs-realtime-validator/blob/master/CONFIG.md#database

Direct link to MS SQL Server config:
https://stackoverflow.com/questions/3585544/how-to-configure-hibernate-config-file-for-sql-server/3588652#3588652

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barbeau commented Nov 22, 2017

I believe you'll also need to install the latest MS SQL Server JDBC drivers on transittools too:
https://docs.microsoft.com/en-us/sql/connect/jdbc/microsoft-jdbc-driver-for-sql-server

@barbeau barbeau mentioned this issue Nov 28, 2017
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barbeau commented Feb 20, 2018 •
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As @Suryakandukoori worked on this, he discovered that several of the SQL statements behind some of the Hibernate view model objects do not work with Microsoft SQL Server. Therefore, to accomplish this task we need to abstract some of these SQL statements so they work beyond just HSQLDB.

@barbeau barbeau modified the milestones: v1.0, v1.1 Feb 20, 2018
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barbeau commented Dec 15, 2020

There is some work started on compatibility with MS SQL Server in this PR - #323.

@barbeau barbeau added the bug label Dec 15, 2020
@barbeau barbeau changed the title Set up hosted instance using CUTR server Support running as a hosted web server instance Dec 15, 2020
@barbeau barbeau modified the milestones: v1.1, v1.0 Dec 15, 2020
@isabelle-dr isabelle-dr mentioned this issue Jan 8, 2022
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@barbeau barbeau linked a pull request Jan 12, 2022 that will close this issue
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Add compatibility with Microsoft SQL Server Suryakandukoori/gtfs-realtime-validator
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