Skip to content

Remove mechanism for supporting multiple memory pools#11071

Merged
losipiuk merged 2 commits intotrinodb:masterfrom
losipiuk:lo/drop-pools-concept
Feb 18, 2022
Merged

Remove mechanism for supporting multiple memory pools#11071
losipiuk merged 2 commits intotrinodb:masterfrom
losipiuk:lo/drop-pools-concept

Conversation

@losipiuk
Copy link
Copy Markdown
Member

@losipiuk losipiuk commented Feb 16, 2022

Description

Remove support for reserved memory pool.
Mechanism did not prove to be useful and was disabled by default.
Removing to simplify codebase.
After getting rid of the reserved pool we have just one pull and we can remove the mechanism for supporting multiple memory pool altogether.

Is this change a fix, improvement, new feature, refactoring, or other?

Improvment

Is this a change to the core query engine, a connector, client library, or the SPI interfaces? (be specific)

query engine, SPI

Related issues, pull requests, and links

fixes #6677

Documentation

(x) No documentation is needed.
( ) Sufficient documentation is included in this PR.
( ) Documentation PR is available with #prnumber.
( ) Documentation issue #issuenumber is filed, and can be handled later.

Release notes

( ) No release notes entries required.
(x) Release notes entries required with the following suggested text:

# General
* Remove support for reserved memory pool. Configuration property `experimental.reserved-pool-disabled` can no longer be used. ({issue}`6677`)

@cla-bot cla-bot bot added the cla-signed label Feb 16, 2022
@losipiuk losipiuk force-pushed the lo/drop-pools-concept branch from 65d25c4 to 3af6d4e Compare February 17, 2022 10:22
@losipiuk losipiuk marked this pull request as ready for review February 17, 2022 10:22
@losipiuk losipiuk requested review from dain and martint February 17, 2022 10:23
@losipiuk
Copy link
Copy Markdown
Member Author

@findepi PTAL at this one too.

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

final.
still @GuardedBy("this")?

Copy link
Copy Markdown
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I agree. Also it feels we did not need that synchronization before neither (give destroy is called once)

Copy link
Copy Markdown
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actually we do not need pool field at all - just a boolean flag if we exported JMX bean.

@losipiuk losipiuk force-pushed the lo/drop-pools-concept branch from 3af6d4e to 1a662a3 Compare February 17, 2022 13:19
@losipiuk
Copy link
Copy Markdown
Member Author

@findepi AC + some more code bashed. No rebase so you can just take a look at diff

@losipiuk losipiuk force-pushed the lo/drop-pools-concept branch from 369b6f6 to 5c61526 Compare February 17, 2022 16:42
Copy link
Copy Markdown
Member Author

@losipiuk losipiuk Feb 17, 2022

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

@dain @findepi @arhimondr
I am a bit concerned about the removal of this endpoint. What was the target audience? Can it backfire?
getMemoryInfo above changed from POST to GET has the relevant information but it is tagged with INTERNAL_ONLY security so cannot be used as a replacement.
And I am also not sure if I can safely change INTERNAL_ONLY to MANAGEMENT_READ above.

Would appreciate some help here.

Copy link
Copy Markdown
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Maybe I can keep it with paramter and require that caller always has to pass "general" ?

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I'm not sure who uses that. Maybe @electrum does? If you do what to keep it, change the annotation to @Path("general").

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I think this was for internal monitoring at Facebook. I'm fine with removing it.

Copy link
Copy Markdown
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Thanks guys:)

@linzebing linzebing self-requested a review February 17, 2022 17:40
Copy link
Copy Markdown
Contributor

@arhimondr arhimondr left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@losipiuk losipiuk force-pushed the lo/drop-pools-concept branch from 5c61526 to cd2cdda Compare February 17, 2022 21:00
@losipiuk
Copy link
Copy Markdown
Member Author

@arhimondr AC: diff

@losipiuk
Copy link
Copy Markdown
Member Author

CI:#10932

@losipiuk losipiuk merged commit 698ff6c into trinodb:master Feb 18, 2022
@github-actions github-actions bot added this to the 372 milestone Feb 18, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Development

Successfully merging this pull request may close these issues.

Remove reserved pool

5 participants