[FLINK-7001] Improve performance of Sliding Time Window with pane optimization - ASF JIRA

Agile Board

Rank to Top

Rank to Bottom

Attach files

Attach Screenshot

Bulk Copy Attachments

Bulk Move Attachments

Add vote

Voters

Watch issue

Watchers

Create sub-task

Convert to sub-task

Link

Clone

Labels

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Improvement
Status: Open
Priority: Not a Priority
Resolution: Unresolved
Affects Version/s: None
Fix Version/s: None
Component/s: API / DataStream
Labels:
- auto-deprioritized-major
- auto-deprioritized-minor

Description

Currently, the implementation of time-based sliding windows treats each window individually and replicates records to each window. For a window of 10 minute size that slides by 1 second the data is replicated 600 fold (10 minutes / 1 second). We can optimize sliding window by divide windows into panes (aligned with slide), so that we can avoid record duplication and leverage the checkpoint.

I will attach a more detail design doc to the issue.

The following issues are similar to this issue: ~~FLINK-5387~~, ~~FLINK-6990~~