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A Distributed Worker Launcher Framework

3packages dependsuggested by 3
47.6Kdownloads / year
100.0%test coverage
13/13flavors OK

Overview

About

In computationally demanding analysis projects, statisticians and data scientists asynchronously deploy long-running tasks to distributed systems, ranging from traditional clusters to cloud services. The 'NNG'-powered 'mirai' R package by Gao (2023) doi:10.5281/zenodo.7912722 is a sleek and sophisticated scheduler that efficiently processes these intense workloads. The 'crew' package extends 'mirai' with a unifying interface for third-party worker launchers. Inspiration also comes from packages. 'future' by Bengtsson (2021) doi:10.32614/RJ-2021-048, 'rrq' by FitzJohn and Ashton (2023) https://github.com/mrc-ide/rrq, 'clustermq' by Schubert (2019) doi:10.1093/bioinformatics/btz284), and 'batchtools' by Lang, Bischel, and Surmann (2017) doi:10.21105/joss.00135.

Changes in 1.3.3
  • Wrap nanonext::tls_config() in try() to avoid platform-dependent false positives on CRAN.

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 2.6 min · r-oldrel-windows-x86_64
Status changes
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK13 OK2026-06-09
  • ERROR12 OK, 1 ERROR2026-06-08
  • OK14 OK2026-03-10
Advisories

none known

Documentation

In release 1.3.3
README· In the repository, left out of the releaseVignettesYes · 7 · dynamicNEWSYes · 100% structured · mentions 1.3.3Citation fileNoWebsiteYes · pkgdown
Description cites an R Journal article
Help pages
34 (1 internal)includes a package overview page
Examples that run
100%29 run in a plain check (15 of them under a condition)
Exported functions with examples
88%
Documented parameters
100%
Return-value docs
42%
Help pages citing references
0%

Downloads

47.6K
CRAN downloads in the past year
Rank #1,831 · ~130/day · ~4K/mo
Daily download trend is not available in this view yet.
3.2K30 days
10.9K90 days
47.6K1 year
Compare downloads with other packages →
Also on787 r2u12 autocran2.9K conda_forge27 c2d4u

Repository

153Stars
4Forks
0Open issues
0Open PRs
31Releases
2,013Commits
4Commit identities
r-packagerrstatshigh-performance-computing
2,013 commits · Last activity 2026-09-03 · 0% stars, 30d · Default branch at 1.3.3.9000, ahead of CRAN 1.3.3 (checked 2026-10-11) · Discussions: 45 posts
Responsiveness
How these are sampled
PRs merged (all time)
84%
Median days to close, 50 most recently updated closed issues
5
Median days to close, 50 most recently updated closed PRs
0

Stars over time

2025-10-18 · 1472026-07-26 · 153
PracticesBeta

15 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/wlandau/crew on 2026-10-11.

Continuous integration (2)
GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (4)
Code of conductContributing guideIssue templatesPR template
Docs source (4)
README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-03 · The repository has a site deploy workflow

pkgdown site last built 2026-09-03, before release 1.3.3 (2026-09-04)

Coverage (1)
Coverage reporting
Show all practicesHide 2 practices
Research and citation (1)
codemeta.json
Lint, format, editor (3)
lintrLint workflowRStudio project
How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies
18 external dependencies (excludes base and recommended)

Installing crew adds 24 packages (16 with compiled code, 17 MB of source tarballs). Heaviest: data.table 5.7 MB, promises 3.1 MB, Rcpp 1.8 MB.

Depends (1)
R >= 4.0.0
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
3direct
0indirect
Imports 3
Suggested by 3
Depends, Imports or LinkingTo, most downloaded first
Suggests, most downloaded first

People & History

People (3)
Author, Maintainer since 0.0.4 (2023)
Contributor · added in 0.2.1
Copyright holder, Funder
Listed in earlier versions (1)
Landau
no longer listed · 0.0.4 to 1.3.3
Releases (29)

Pick two releases to compare their code metrics.

Show 18 earlier eventsHide 18 earlier events
  • 0.9.3
    record
    2024-05-22 · diff ↗
  • 0.9.2
    record
    2024-04-24 · diff ↗
  • R
    R 4.4.0 released · 2024-04-24
  • 0.9.1
    record
    2024-03-25 · diff ↗
  • 0.9.0
    record
    2024-02-08 · diff ↗
  • 0.8.0
    record
    2024-01-09 · diff ↗ ·
    added 4 exports
    crew_class_monitor_local, crew_monitor_local, crew_terminate_process, crew_terminate_signal
  • 0.7.0
    record
    2023-12-11 · diff ↗ ·
    added 4 exports
    crew_class_relay, crew_class_throttle, crew_relay, crew_throttle
  • 0.6.0
    record
    2023-10-12 · diff ↗ ·
    removed 2 exports
    crew_class_schedule, crew_schedule
    added 3 exports
    crew_async, crew_class_async, crew_eval_async
  • 0.5.0
    record
    2023-09-18 · diff ↗ ·
    added 2 exports
    crew_class_tls, crew_tls
  • 0.4.0
    record
    2023-07-11 · diff ↗ ·
    added 1 export
    crew_clean
  • 0.3.0
    record
    2023-06-26 · diff ↗ ·
    removed 2 exports
    crew_class_router, crew_router
    added 4 exports
    crew_class_client, crew_class_schedule, crew_client, crew_schedule
  • 0.2.1
    record
    2023-05-22 · diff ↗ ·
    added 1 export
    crew_deprecate
  • 0.1.1
    record
    2023-04-21 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • 0.1.0
    record
    2023-04-19 · diff ↗ ·
    removed 6 exports
    crew_class_launcher_callr, crew_controller_callr, crew_launcher_callr, crew_session_start, crew_session_terminate, crew_wait
    added 6 exports
    crew_assert, crew_class_launcher_local, crew_controller_local, crew_launcher_local, crew_random_name, crew_retry
  • 0.0.5
    record
    2023-03-23 · diff ↗
  • 0.0.4
    record
    2023-03-21
  • R
    R 4.2.0 released · 2022-04-22

Package metadata

First published
2023-03-21
Total releases
29 / 3 yrs
License
MIT + file LICENSE OSI
Minimum R
≥ 4.0.0
Download size
762 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("crew")
Landau, W. M., Eli Lilly and Company, , & Woodie, D. (2026). crew: A Distributed Worker Launcher Framework (Version 1.3.3) [Computer software]. https://doi.org/10.32614/CRAN.package.crew

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for crew version 1.3.3 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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