apache / apache/hudi

MOR compact improve

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#15,060 1 comment 0 reactions 0 assignees View on GitHub
area:table-service area:writer component:compaction from-jira priority:critical status:pr-available type:improvement
Dominant language
Java
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Description

In most business scenarios, the latest data is in the latest delta log file, so we sort it from large to small according to the instance time, which can largely avoid rewriting the data in the compact process, and then optimize the compact time

## JIRA info

- Link: https://issues.apache.org/jira/browse/HUDI-3617
- Type: Improvement

Contributor guide

No contributing guide indexed for this repository

Research direction

No files or tests are named. Start by locating the MOR compaction entry point and examining how delta log files are selected and ordered by instance time. Done means the compaction process prioritizes the latest delta log and avoids unnecessary data rewrites while improving compaction time.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering, distributed-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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