[Feature] Need a simple tool to query data in the store (e.g. for debugging/troubleshooting)

[dlg99]

Willingness to contribute

No. I cannot contribute a bug fix at this time.

Feature Request Proposal

Venice's docker image should package a simple documented tool/script to query the data

I tried using java -jar /opt/venice/bin/venice-admin-tool-all.jar --query .. but it returns "Schema of store: .. doesn't exist" error. This is a documented way

"clients/venice-thin-client/bin/query_key.sh" (Suggested on slack) is not packaged in the docker image.

Working way is to use java -jar /opt/venice/bin/venice-thin-client-all.jar $storeName $key $router false "" on the venice-client

Motivation

What is the use case for this feature?

Troubleshooting / testing

Details

https://venicedb.slack.com/archives/C03SLQWRSLF/p1682546829621559

What component(s) does this bug affect?

• Controller: This is the control-plane for Venice. Used to create/update/query stores and their metadata.
• Router: This is the stateless query-routing layer for serving read requests.
• Server: This is the component that persists all the store data.
• VenicePushJob: This is the component that pushes derived data from Hadoop to Venice backend.
• Thin Client: This is a stateless client users use to query Venice Router for reading store data.
• Fast Client: This is a stateful client users use to query Venice Server for reading store data.
• Da Vinci Client: This is an embedded, stateful client that materializes store data locally.
• Samza: This is the library users use to make nearline updates to store data.
• Admin Tool: This is the stand-alone client used for ad-hoc operations on Venice.