Hi tison,

Fair enough, point taken.

BTW one thing for @Twice, before the VOTE thread: Required Resources
still lists the OpenDAL mailing lists (private@ / dev@ / commits@ /
issues@ / [email protected]), looks like a copy-paste leftover,
should be the podling's own lists once the name is confirmed.

On Thu, Aug 13, 2026 at 10:54 PM tison <[email protected]> wrote:
>
> > At the same time, I have already started familiarizing myself with the
> > project on GitHub.
>
> Welcome! Feel free to ask anything on GitHub or following on the mailing
> list.
>
> Although, I'd prefer to keep the focus on API, code quality, adoption, and
> other development velocity things, rather than jump into concrete
> free-standing style because I typically understand that contributors can
> decide style adoption around the area they are actively working on.
> Commenting on styles are cheap and if you're not living with those, it is
> too cheap to suggest.
>
> Best,
> tison.
>
>
> mingcheng <[email protected]> 于2026年8月13日周四 22:18写道:
>
> > Hi, tison
> >
> > I agree with your careful consideration regarding the project version
> > number strategy, and I also understand that we need to be mentally
> > prepared for the long-term maintenance of this project.
> >
> > A clear plan shows that we already have many good ideas and roadmap
> > which means a good start, I look forward to this project continuing to
> > move forward within the incubation.
> >
> > At the same time, I have already started familiarizing myself with the
> > project on GitHub.
> >
> > On Thu, Aug 13, 2026 at 10:01 PM tison <[email protected]> wrote:
> > >
> > > Hi mingcheng,
> > >
> > > > crates is currently 0.67, which doesn't seem very “mature,” so I'd
> > > > suggest moving it to 1.0 when into the podling stage - that way looks
> > > > more "mature" and production-ready :-)
> > >
> > > Thanks for your feedback :D
> > >
> > > A 1.0 release would typically associate with a stable promise. I'm going
> > to
> > > release a 0.7 version this month to include several breaking changes and
> > > module structure rearrangement, and see if the state is in a good shape
> > for
> > > 1.0.
> > >
> > > That said, I'm a big fan of providing stable APIs that downstream
> > projects
> > > can rely on. But the version series should reflect the real stable
> > status,
> > > or else it would be meaning less. For example, a project release 100.0.1
> > > months after its 1.0.0 release, has noting different from staying in 0.x.
> > >
> > > Here is a meme site about ZeroVer [1] and you would find several ASF
> > > (top-level) projects on list :D
> > >
> > > [1] https://0ver.org/
> > >
> > > Back to Asyncband, the scope has been discussed as:
> > >
> > > * Asynchronous primitives like Semaphore, Mutex, WaitGroup, Latch, etc.
> > > * Composited utilities like shutdown.
> > > * Channels with multiple strategies.
> > > * Concurrency control like admission, singleflight, and perhaps something
> > > like select!/join! later.
> > >
> > > Non-goals contain:
> > >
> > > * IO reactor/proactor (fs, net, signal, timer, ...). We can continue
> > > incubating that at fast/scorpio.
> > > * Schedulers (tokio's scheduler, yatp, etc.). I have no idea about
> > working
> > > on these, yet.
> > > * Future/Stream combinators. It is covered by rust-lang/futures and
> > > actually with full async/await support this should be unnecessary.
> > >
> > > It's actually a big challenge to provide stable API promises. Or we can
> > > keep the stable one documented while other stay behind an
> > > "unstable-<feature-name>" feature flag. All of that are technical details
> > > we can work together :D
> > >
> > > Best,
> > > tison.
> > >
> > >
> > > mingcheng <[email protected]> 于2026年8月13日周四 21:52写道:
> > >
> > > > Hi, tison
> > > >
> > > > Thanks for driving this work forward so efficiently.
> > > >
> > > > Here is one more small suggestion: I see the asyncband version on
> > > > crates is currently 0.67, which doesn't seem very “mature,” so I'd
> > > > suggest moving it to 1.0 when into the podling stage - that way looks
> > > > more "mature" and production-ready :-)
> > > >
> > > >
> > > > On Thu, Aug 13, 2026 at 8:52 PM tison <[email protected]> wrote:
> > > > >
> > > > > The rebrand has been done:
> > > > >
> > > > > * https://github.com/fast/asyncband
> > > > > * https://crates.io/crates/asyncband
> > > > >
> > > > > The PODLINGNAMESEARCH ticket has been filed:
> > > > >
> > > > > * https://issues.apache.org/jira/browse/PODLINGNAMESEARCH-257
> > > > >
> > > > > Best,
> > > > > tison.
> > > > >
> > > > >
> > > > > Xuanwo <[email protected]> 于2026年8月12日周三 23:30写道:
> > > > >
> > > > > > Thank you for raising this!
> > > > > >
> > > > > > Learnt a lot about mea. I'm happy with the new name.
> > > > > >
> > > > > > On Wed, Aug 12, 2026, at 20:28, Twice wrote:
> > > > > > > Hi IPMC,
> > > > > > >
> > > > > > > I would like to propose Asyncband [1] as a new Apache Incubator
> > > > > > > project, you can find the proposal of Asyncband [2] for more
> > details.
> > > > > > >
> > > > > > > The project was previously named MEA and was discussed in an
> > > > Incubator
> > > > > > > thread [3]. Based on community feedback, we decided to rename the
> > > > > > > project Asyncband because MEA was too short and could be
> > ambiguous in
> > > > > > > some languages.
> > > > > > >
> > > > > > > I'm acting as the champion, and we currently have 4 mentors
> > > > (including
> > > > > > me).
> > > > > > >
> > > > > > > Full proposal inlined below for easy reading.
> > > > > > >
> > > > > > > [1] https://github.com/fast/mea
> > > > > > > [2]
> > > > > > >
> > > > > >
> > > >
> > https://cwiki.apache.org/confluence/spaces/INCUBATOR/pages/446071349/Asyncband+Proposal
> > > > > > > [3]
> > https://lists.apache.org/thread/5pb2rtzjmn1rzchfglokslgwwg293o47
> > > > > > >
> > > > > > > Best regards,
> > > > > > > Twice
> > > > > > >
> > > > > > >
> > > >
> > -------------------------------------------------------------------------
> > > > > > >
> > > > > > > Abstract
> > > > > > > Asyncband is a runtime-agnostic Rust library of composable
> > > > > > > synchronization, coordination, channel, and concurrency-control
> > > > > > > primitives for asynchronous applications.
> > > > > > >
> > > > > > > Proposal
> > > > > > > Asyncband provides reusable building blocks for asynchronous Rust
> > > > > > > programs without coupling applications or libraries to a
> > particular
> > > > > > > async runtime. Its primitives interoperate through Rust’s
> > standard
> > > > > > > Future, Context, and Waker interfaces and can therefore be used
> > with
> > > > > > > Tokio, async-std, or other executors.
> > > > > > >
> > > > > > > The proposed project scope includes:
> > > > > > > - Synchronization primitives such as Mutex, RwLock, Semaphore,
> > > > > > > Barrier, Condvar, Latch, WaitGroup, Once, OnceCell, and OnceMap.
> > > > > > > - Communication primitives such as one-shot, bounded and
> > unbounded
> > > > > > > MPSC, and broadcast channels with different delivery and overflow
> > > > > > > strategies.
> > > > > > > - Composed coordination utilities such as graceful shutdown
> > > > signaling.
> > > > > > > - Concurrency-control utilities such as admission control and
> > > > > > > duplicate-call suppression.
> > > > > > > The following areas are intentionally outside the project’s
> > scope:
> > > > > > > - I/O reactors or proactors for filesystems, networking, signals,
> > > > > > > timers, or similar facilities.
> > > > > > > - Task schedulers or complete async runtimes.
> > > > > > > - General-purpose Future or Stream combinator libraries already
> > > > > > > covered by the Rust futures ecosystem.
> > > > > > > Asyncband is intended to be a focused, commons-style foundation
> > for
> > > > > > > async synchronization and coordination in Rust rather than
> > another
> > > > > > > async runtime.
> > > > > > >
> > > > > > > Background
> > > > > > > Asyncband was started by Zili Chen (tison) in October 2024 and
> > has
> > > > > > > been developed publicly on GitHub under the Apache License,
> > Version
> > > > > > > 2.0. The project was previously named MEA and publishes the mea
> > crate
> > > > > > > on crates.io and versioned API documentation on docs.rs. Right
> > now,
> > > > we
> > > > > > > have four active contributors and the crate has been downloaded
> > more
> > > > > > > than 5M times.
> > > > > > >
> > > > > > > Rationale
> > > > > > > Async Rust libraries frequently need synchronization and
> > coordination
> > > > > > > facilities even when they do not want to impose a particular
> > runtime
> > > > > > > on downstream applications. Runtime-specific primitive
> > > > implementations
> > > > > > > can introduce otherwise unnecessary coupling, while repeatedly
> > > > > > > implementing low-level concurrency machinery increases
> > correctness
> > > > and
> > > > > > > maintenance risks.
> > > > > > >
> > > > > > > Asyncband addresses this gap with a coherent set of
> > > > > > > executor-independent primitives and a deliberately small runtime
> > > > > > > dependency surface. It gives libraries a shared implementation
> > for
> > > > > > > common concurrency behavior while allowing applications to choose
> > > > > > > their executor.
> > > > > > >
> > > > > > > Moving Asyncband to the ASF would establish durable,
> > vendor-neutral
> > > > > > > ownership and a transparent, merit-based governance model. It
> > would
> > > > > > > also create a neutral place for users of different runtimes and
> > > > > > > downstream projects to collaborate on correctness, API design,
> > > > > > > performance, documentation, and new primitives within a
> > well-defined
> > > > > > > scope.
> > > > > > >
> > > > > > > Initial Goals
> > > > > > > By transferring ownership of the project to the ASF, Asyncband
> > > > expects
> > > > > > > to ensure its neutrality and further encourage and facilitate the
> > > > > > > adoption of Asyncband by the community.
> > > > > > >
> > > > > > > Some of the areas we would like to focus on during the Apache
> > > > > > > incubation phase include:
> > > > > > > - A healthier community: More contributors could be able to
> > > > > > > participate in Asyncband and own different modules.
> > > > > > > - Wider adoption: Asyncband can be adopted by more Rust projects,
> > > > > > > which in turn drives its own functionality.
> > > > > > > - Strengthening correctness evidence through cross-runtime
> > > > integration
> > > > > > > tests, stress and property testing, and targeted model checking.
> > > > > > > - Establishing reproducible benchmarks and improving performance
> > > > > > > without compromising safety, fairness, or API clarity.
> > > > > > >
> > > > > > > Current Status
> > > > > > > Meritocracy
> > > > > > > Asyncband has been developed through public GitHub issues and
> > pull
> > > > > > > requests. Contributors receive credit through the repository
> > history
> > > > > > > and release notes, but project ownership and release authority
> > are
> > > > > > > currently concentrated in the founding maintainer, and no formal
> > > > > > > committer-governance model exists yet.
> > > > > > >
> > > > > > > The initial community intends to adopt the Apache Way. Technical
> > and
> > > > > > > governance decisions will be made transparently on ASF-managed
> > > > > > > channels, contributions of code and non-code work will be
> > evaluated
> > > > on
> > > > > > > merit, and contributors who demonstrate sustained positive
> > > > > > > participation will be invited to become committers and PPMC
> > members.
> > > > > > >
> > > > > > > Community
> > > > > > > Contributors: 9
> > > > > > >
> > > > > > > Users:
> > > > > > > - Apache OpenDAL
> > > > > > > - Prek
> > > > > > > - Foyer
> > > > > > > - ScopeDB
> > > > > > > - ... and more on
> > https://crates.io/crates/mea/reverse_dependencies
> > > > > > > The donation discussion is public at
> > > > > > https://github.com/fast/mea/issues/140.
> > > > > > >
> > > > > > > Core Developers
> > > > > > > The current core developers have experience with Rust,
> > asynchronous
> > > > > > > systems, and public open-source collaboration. Zili Chen is an
> > ASF
> > > > > > > Member and IPMC member with experience mentoring incubating
> > projects.
> > > > > > > Yunze Xu is an Apache Pulsar PMC member. Dian Luo and Haixu
> > Ouyang
> > > > > > > have contributed to the implementation, documentation, testing,
> > and
> > > > > > > maintenance of Asyncband and related projects in the fast GitHub
> > > > > > > organization.
> > > > > > >
> > > > > > > This gives the initial group some ASF experience, but not every
> > core
> > > > > > > developer is familiar with ASF release, governance, and
> > communication
> > > > > > > practices. The Mentors will help the whole community learn and
> > > > > > > consistently apply those practices.
> > > > > > >
> > > > > > > Alignment
> > > > > > > Asyncband is already licensed under Apache-2.0, is developed in
> > > > > > > public, and is directly used by Apache OpenDAL. Its purpose as
> > > > > > > reusable, vendor-neutral infrastructure aligns with the ASF’s
> > > > emphasis
> > > > > > > on community-led development and long-term stewardship.
> > > > > > >
> > > > > > > The ASF hosts a growing set of Rust projects and Rust components,
> > > > > > > including Apache OpenDAL, Apache DataFusion, and parts of Apache
> > > > > > > Arrow. Asyncband can provide shared async coordination
> > infrastructure
> > > > > > > for Apache projects where appropriate while remaining useful to
> > the
> > > > > > > wider Rust community.
> > > > > > >
> > > > > > > Known Risks
> > > > > > > Project Name
> > > > > > > This project was previously named MEA, which stands for “Modular
> > > > > > > Essentials for Async”. During previous discussions at the Apache
> > > > > > > Incubator, we realized that MEA might be too short and ambiguous
> > in
> > > > > > > some languages, so it was renamed Asyncband.
> > > > > > >
> > > > > > > Orphan Products
> > > > > > > Asyncband is a small library whose maintenance has so far been
> > led
> > > > > > > primarily by one person, so loss of interest by the founding
> > > > > > > maintainer is a real risk. Existing downstream adoption and the
> > > > > > > commitment of four active contributors reduce the immediate
> > risk, but
> > > > > > > they do not eliminate it.
> > > > > > >
> > > > > > > The central incubation goal is to distribute ownership across a
> > > > larger
> > > > > > > group of committers and downstream stakeholders. Transparent
> > > > > > > governance, documented maintenance practices, and ASF-controlled
> > > > > > > project assets will make continuation less dependent on any one
> > > > > > > individual.
> > > > > > >
> > > > > > > Inexperience with Open Source
> > > > > > > Asyncband has been developed openly on GitHub since its
> > inception,
> > > > and
> > > > > > > all initial committers have participated in public open-source
> > > > > > > workflows. Zili Chen and Yunze Xu have substantial ASF
> > experience,
> > > > > > > while other initial committers are newer to ASF governance,
> > > > > > > mailing-list-based decision-making, release voting, and policy
> > > > > > > requirements.
> > > > > > >
> > > > > > > The project will rely on its Mentors and experienced initial
> > > > > > > committers to teach these practices and ensure that knowledge is
> > > > > > > shared rather than concentrated.
> > > > > > >
> > > > > > > Length of Incubation
> > > > > > > Expect to enter incubation in two months and graduate in about
> > two
> > > > years.
> > > > > > >
> > > > > > > Homogenous Developers
> > > > > > > The initial active developers are geographically concentrated in
> > > > China
> > > > > > > and share overlapping professional interests in Rust
> > infrastructure.
> > > > > > > They are not all employed by the same organization, but the
> > current
> > > > > > > group is still too small and homogeneous for a sustainable Apache
> > > > > > > community.
> > > > > > >
> > > > > > > The project will actively recruit contributors through downstream
> > > > > > > users, Rust runtime communities, ASF Rust projects, documentation
> > > > > > > work, testing initiatives, and well-scoped issues suitable for
> > new
> > > > > > > participants.
> > > > > > >
> > > > > > > Reliance on Salaried Developers
> > > > > > > Asyncband is not known to depend on a development team funded by
> > a
> > > > > > > single employer. The more significant risk is concentration of
> > > > > > > maintenance work in the founding maintainer, regardless of
> > whether
> > > > > > > that work is salaried or voluntary.
> > > > > > >
> > > > > > > The project will mitigate this risk by sharing release, review,
> > > > > > > triage, and technical ownership among multiple committers and by
> > > > > > > recognizing sustained non-code contributions as well as code
> > > > > > > contributions.
> > > > > > >
> > > > > > > Relationships with Other Apache Products
> > > > > > > - Apache OpenDAL directly depends on Asyncband and uses it
> > throughout
> > > > > > > its Rust implementation.
> > > > > > > - prek depends on Asyncband and is used in Apache Airflow’s
> > > > > > > development workflows, creating an indirect relationship with
> > Apache
> > > > > > > Airflow.
> > > > > > > - Asyncband may be useful to other ASF Rust projects that need
> > > > > > > executor-independent synchronization or coordination, but no
> > project
> > > > > > > will be expected to adopt it merely because it is hosted by the
> > ASF.
> > > > > > >
> > > > > > > An Excessive Fascination with the Apache Brand
> > > > > > > The proposal is motivated by neutral ownership, durable
> > > > > > > infrastructure, transparent governance, and community growth
> > rather
> > > > > > > than by endorsement or marketing value. The initial community
> > > > > > > understands that the Apache name does not guarantee adoption and
> > that
> > > > > > > incubation requires sustained work on releases, policy
> > compliance,
> > > > and
> > > > > > > community development.
> > > > > > >
> > > > > > > Documentation
> > > > > > > The API documentation of Asyncband is hosted at
> > https://docs.rs/mea.
> > > > > > >
> > > > > > > If the proposal is accepted, the community may establish a
> > project
> > > > > > > website at asyncband.apache.org; docs.rs will continue to host
> > API
> > > > > > > documentation for published crate versions.
> > > > > > >
> > > > > > > Initial Source
> > > > > > > The project currently holds a GitHub repository and a Cargo
> > crate:
> > > > > > > - https://github.com/fast/mea
> > > > > > > - https://crates.io/crates/mea
> > > > > > > The crate will retain its name, while the repository will be
> > moved to
> > > > > > > the Apache org.
> > > > > > >
> > > > > > > Source and Intellectual Property Submission Plan
> > > > > > > External Dependencies
> > > > > > > The published crate currently has one direct runtime dependency:
> > > > > > >
> > > > > > > MIT
> > > > > > > slab 0.4.12 (It is planned to be removed)
> > > > > > >
> > > > > > > Cryptography
> > > > > > > N/A
> > > > > > >
> > > > > > > Required Resources
> > > > > > > Mailing Lists
> > > > > > > [email protected]
> > > > > > > [email protected]
> > > > > > > [email protected]
> > > > > > > [email protected]
> > > > > > > [email protected]
> > > > > > > Subversion Directory
> > > > > > > N/A
> > > > > > >
> > > > > > > Git Repositories
> > > > > > > From https://github.com/fast/mea
> > > > > > > - https://gitbox.apache.org/asf/repos/asyncband
> > > > > > > - https://github.com/apache/asyncband
> > > > > > >
> > > > > > > Issue Tracking
> > > > > > > The community would like to continue using GitHub Issues.
> > > > > > >
> > > > > > > Other Resources
> > > > > > > The community has already chosen GitHub Actions as continuous
> > > > > > integration tools.
> > > > > > >
> > > > > > > Initial Committers
> > > > > > > tison [[email protected]]
> > > > > > > Dian Luo [[email protected]]
> > > > > > > Yunze Xu [[email protected]]
> > > > > > > Haixu Ouyang [[email protected]]
> > > > > > >
> > > > > > > Sponsors
> > > > > > > Champion
> > > > > > > Mingyang Liu [[email protected]]
> > > > > > >
> > > > > > > Nominated Mentors
> > > > > > > tison [[email protected]]
> > > > > > > Hao Ding [[email protected]]
> > > > > > > Jean-Baptiste Onofré [[email protected]]
> > > > > > > Mingyang Liu [[email protected]]
> > > > > > >
> > > > > > > Sponsor Entity
> > > > > > > The Incubator
> > > > > >
> > > > > > --
> > > > > > Xuanwo
> > > > > >
> > > > > > https://xuanwo.io/
> > > > > >
> > > >
> > > > ---------------------------------------------------------------------
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> > > >
> > > >
> >
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