Blog: Dynamic Query Splitting #6965
Open
+187
−1
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Signed-off-by: Ahmed Hassan <[email protected]>
Signed-off-by: Ahmed Hassan <[email protected]>
Signed-off-by: Ahmed Hassan <[email protected]>
afhassan
changed the title
justinjung04
approved these changes
Aug 13, 2025
|
|
||
| * With a static split interval of 24 hours and `max_shards_per_query` set to 75, a 7-day query still results in 7 splits. | ||
| * If the user increased query range to 100 days, the dynamic splitting algorithm will adjust the split interval to be 48 hours, producing 50 horizontal splits—keeping the total within the target of 75 shards. | ||
| * If vertical sharding is enabled and configured to use 5 shards, the dynamic logic selects the optimal combination of split interval and vertical shards to maximize parallelism without exceeding 75 shards. |
There was a problem hiding this comment.
Should we briefly explain how we calculate the optimal combination, or is that too much detail for this doc?
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What this PR does:
Publish blog post that explores the motivations behind adapting dynamic query splitting in Cortex, how the dynamic model works, and how to configure it for more efficient scalable PromQL query execution.
Which issue(s) this PR fixes:
Fixes #
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]