[opt](TabletScheduler) introduce TableDispatchScheduler for table-level tablet scheduling#60955
Open
uchenily wants to merge 1 commit intoapache:masterfrom
Open
[opt](TabletScheduler) introduce TableDispatchScheduler for table-level tablet scheduling#60955uchenily wants to merge 1 commit intoapache:masterfrom
uchenily wants to merge 1 commit intoapache:masterfrom
Conversation
Contributor
|
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
|
Contributor
Author
|
run buildall |
…el tablet scheduling This PR optimizes the TabletScheduler by introducing a table-level dispatching mechanism. Instead of processing tablets sequentially from a single global queue, the scheduler now dispatches tablets to table-specific queues handled by a pool of worker threads. This optimization aims to prevent a long-held lock or a potential deadlock on a specific table from blocking the entire TabletScheduler and enhance overall scheduling throughput by allowing multiple tables to be processed concurrently.
149c92b to
6f31d1b
Compare
Contributor
Author
|
run buildall |
TPC-H: Total hot run time: 28613 ms |
TPC-DS: Total hot run time: 183411 ms |
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
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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 problem does this PR solve?
This PR optimizes the TabletScheduler by introducing a table-level dispatching mechanism. Instead of processing tablets sequentially from a single global queue, the scheduler now dispatches tablets to table-specific queues handled by a pool of worker threads.
This optimization aims to prevent a long-held lock or a potential deadlock on a specific table from blocking the entire TabletScheduler and enhance overall scheduling throughput by allowing multiple tables to be processed concurrently.
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
Release note
None
Check List (For Author)
Test
Behavior changed:
Does this need documentation?
Check List (For Reviewer who merge this PR)