apache / apache/paimon

[Feature] consumer-id in batch reading from spark

Open
#4,913 0 comments 1 reaction 0 assignees View on GitHub
enhancement
Dominant language
Java
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Forks
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Avg merge
1d 11h
Merged PRs (30d)
396

Description

### Search before asking

- [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar.

### Motivation

When storing logs into append-only bucked table and batch reading from spark,
Is there any way to prevent data removal from compaction without turning on write-only or making snapshot-retention longer?

If there isn't, like streaming `consumer-id`, making a temporary snapshot prevention is needed.

### Solution

setting a spark sql hint for storing consumer-id and retention

### Anything else?

_No response_

### Are you willing to submit a PR?

- [x] I'm willing to submit a PR!

Contributor guide

No contributing guide indexed for this repository

Research direction

No files, tests, or entry points are named. Start by tracing Spark batch reading, compaction, and the existing streaming consumer-id behavior; done would define and implement a Spark SQL hint that preserves the required snapshots through the requested retention period.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, spark
Domain
data-engineering
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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