stackabletech / stackabletech/hdfs-operator

Missing properties in discovery core-site.xml for Hive impersonation

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customer-request type/bug
Dominant language
Rust
Stars
53
Forks
9
Avg merge
1d 13h
Merged PRs (30d)
10

Description

Description

When using kerberized HDFS and Hive, for impersonation some properties must be set which are currently e.g. overriden in HDFS as in this Hive test
https://github.com/stackabletech/hive-operator/blob/235a531bf463e91a59578f5edd4602afba8cf8ba/tests/templates/kuttl/kerberos-hdfs/30-install-hdfs.yaml.j2#L32

hadoop.proxyuser.hive.hosts="*"
hadoop.proxyuser.hive.users="*"

This works for HDFS and the role / rolegroup level, but is left out from the "discovery" core-site.xml.

This leads to problems for Hive impersonation which just mounts the core-site.xml.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Inspect the code that generates the discovery core-site.xml and compare it with the properties set in tests/templates/kuttl/kerberos-hdfs/30-install-hdfs.yaml.j2. Start by tracing how role and rolegroup configuration differs from discovery configuration. Done means the Hive proxy-user properties are present in the discovery file and can support Hive impersonation.

Written by the indexing model from the issue text.

Assessment

Tech stack
hadoop, kubernetes, rust
Domain
devops, distributed-systems
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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