Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[datafusion-contrib] Support Stand Alone Hive MetaStore #2209

Open
tustvold opened this issue Apr 12, 2022 · 0 comments
Open

[datafusion-contrib] Support Stand Alone Hive MetaStore #2209

tustvold opened this issue Apr 12, 2022 · 0 comments
Labels
enhancement New feature or request

Comments

@tustvold
Copy link
Contributor

tustvold commented Apr 12, 2022

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

Whilst AWS Glue can act as a Hive compatible metastore, and #2206 tracks adding support for it, this is of course not an option for people running outside of AWS. It would be good to provide some story for these users.

Describe the solution you'd like

I'm not very familiar with the Hive ecosystem, but it would appear that when people refer to the Hive metastore, they are referring to a client-side implementation, as opposed to a some service like Zookeeper, or Kafka.

I found this exceptionally confusing, but there appear to be three options:

  1. An implementation using an embedded Derby database
  2. An implementation using a remote JDBC database
  3. An implementation using a remote Hive server

I don't think 1. is useful for DataFusion's purposes, and 2. is likely tricky to implement without running into subtle incompatibilities with the Java version, I therefore think 3. is likely the best option. From my understanding this effectively takes the implementation of 2. and runs it as a network service with a thrift API. This should be relatively straightforward to support and can likely share a lot of code with any AWS Glue support.

Describe alternatives you've considered

We could not support this

@tustvold tustvold added the enhancement New feature or request label Apr 12, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
enhancement New feature or request
Projects
None yet
Development

No branches or pull requests

1 participant