Refining example, add utilities, and fix xdist test error

.github/workflows/pull_request_push_test.yml

@@ -22,7 +22,7 @@ on:
       - "docs/**"
       - "ui/**"
       - "**/README.md"
-  
+
   schedule:
     # Runs daily at 1 PM UTC (9 PM CST), will send notification to TEAMS_WEBHOOK
     - cron: '00 13 * * *'
@@ -127,7 +127,7 @@ jobs:
           SQL1_USER: ${{secrets.SQL1_USER}}
           SQL1_PASSWORD: ${{secrets.SQL1_PASSWORD}}
         run: |
-          # run only test with databricks. run in 4 parallel jobs
+          # run only test with databricks. run in 6 parallel jobs
           pytest -n 6 --cov-report term-missing --cov=feathr_project/feathr feathr_project/test --cov-config=.github/workflows/.coveragerc_db
   azure_synapse_test:
     # might be a bit duplication to setup both the azure_synapse test and databricks test, but for now we will keep those to accelerate the test speed
@@ -195,7 +195,7 @@ jobs:
           SQL1_PASSWORD: ${{secrets.SQL1_PASSWORD}}
         run: |
           # skip databricks related test as we just ran the test; also seperate databricks and synapse test to make sure there's no write conflict
-          # run in 4 parallel jobs to make the time shorter
+          # run in 6 parallel jobs to make the time shorter
           pytest -n 6 --cov-report term-missing --cov=feathr_project/feathr feathr_project/test --cov-config=.github/workflows/.coveragerc_sy
 
   local_spark_test:

.gitignore

@@ -213,3 +213,6 @@ null/*
 project/.bloop
 metals.sbt
 .bsp/sbt.json
+
+# Feathr output debug folder
+**/debug/

docs/dev_guide/new_contributor_guide.md

@@ -6,19 +6,19 @@ parent: Feathr Developer Guides
 
 # What can I contribute?
 All forms of contributions are welcome, including and not limited to:
-* Improve or contribute new [notebook samples](https://github.com/feathr-ai/feathr/tree/main/feathr_project/feathrcli/data/feathr_user_workspace)
+* Improve or contribute new [notebook samples](https://github.com/feathr-ai/feathr/tree/main/docs/samples)
 * Add tutorial, blog posts, tech talks etc
 * Increase media coverage and exposure
 * Improve user-facing documentation or developer-facing documentation
-* Add testing code 
+* Add testing code
 * Add new features
 * Refactor and improve architecture
 * For any other forms of contribution and collaboration, don't hesitate to reach out to us.
 
 # I am interested, how can I start?
 If you are new to this project, we recommend start with [`good-first-issue`](https://github.com/feathr-ai/feathr/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22).
 
-The issues are also labled with what types of programming language the task need. 
+The issues are also labled with what types of programming language the task need.
 * [`good-first-issue` and `Python`](https://github.com/feathr-ai/feathr/issues?q=is%3Aopen+label%3A%22good+first+issue%22+label%3Apython)
 * [`good-first-issue` and `Scala`](https://github.com/feathr-ai/feathr/issues?q=is%3Aopen+label%3A%22good+first+issue%22+label%3Ascala)
 * [`good-first-issue` and `Java`](https://github.com/feathr-ai/feathr/issues?q=is%3Aopen+label%3A%22good+first+issue%22+label%3Ajava)

docs/quickstart_synapse.md

@@ -24,7 +24,7 @@ Feathr has native cloud integration. Here are the steps to use Feathr on Azure:
 
 1. Follow the [Feathr ARM deployment guide](https://feathr-ai.github.io/feathr/how-to-guides/azure-deployment-arm.html) to run Feathr on Azure. This allows you to quickly get started with automated deployment using Azure Resource Manager template. Alternatively, if you want to set up everything manually, you can checkout the [Feathr CLI deployment guide](https://feathr-ai.github.io/feathr/how-to-guides/azure-deployment-cli.html) to run Feathr on Azure. This allows you to understand what is going on and set up one resource at a time.
 
-2. Once the deployment is complete,run the Feathr Jupyter Notebook by clicking this button:  [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/feathr-ai/feathr/main?labpath=feathr_project%2Ffeathrcli%2Fdata%2Ffeathr_user_workspace%2Fnyc_driver_demo.ipynb). 
+2. Once the deployment is complete,run the Feathr Jupyter Notebook by clicking this button:  [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/feathr-ai/feathr/main?labpath=docs%2Fsamples%2Fnyc_taxi_demo.ipynb).
 3. You only need to change the specified `Resource Prefix`.
 
 ## Step 2: Install Feathr