A Distributed Worker Launcher Framework
Overview
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.
- Wrap
nanonext::tls_config()intry()to avoid platform-dependent false positives on CRAN.
From NEWS.md in the release
Install
Health
- OK13 OK2026-08-05
- NOTE12 OK, 1 NOTE2026-08-01
- OK13 OK2026-06-09
- ERROR12 OK, 1 ERROR2026-06-08
- OK14 OK2026-03-10
Documentation
- 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
Repository
- 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
Forks over time
Releases over time
Issues over time
PRs over time
Commits over time
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.
The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel
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)
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Dependencies
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.
Code & Tests
People & History
Pick two releases to compare their code metrics.
- 1.3.3Latest
- 1.3.22026-07-30 · diff ↗
- 1.3.12026-05-30 · diff ↗
- RR 4.6.0 released · 2026-04-24
- 1.3.02025-09-13 · diff ↗ ·
removed 5 exports
crew_async, crew_class_async, crew_class_queue, crew_eval_async, crew_queue - 1.2.12025-06-09 · diff ↗
- 1.2.02025-06-06 · diff ↗
- 1.1.22025-05-08 · diff ↗
- RR 4.5.0 released · 2025-04-11
- 1.1.0
- 1.0.0
- 0.10.22024-11-15 · diff ↗
- 0.10.12024-11-03 · diff ↗
- 0.10.0
- 0.9.52024-06-24 · diff ↗
- 0.9.42024-06-20 · diff ↗
Show 18 earlier eventsHide 18 earlier events
- 0.9.32024-05-22 · diff ↗
- 0.9.22024-04-24 · diff ↗
- RR 4.4.0 released · 2024-04-24
- 0.9.12024-03-25 · diff ↗
- 0.9.02024-02-08 · diff ↗
- 0.8.02024-01-09 · diff ↗ ·
added 4 exports
crew_class_monitor_local, crew_monitor_local, crew_terminate_process, crew_terminate_signal - 0.7.02023-12-11 · diff ↗ ·
added 4 exports
crew_class_relay, crew_class_throttle, crew_relay, crew_throttle - 0.6.02023-10-12 · diff ↗ ·
removed 2 exports
crew_class_schedule, crew_scheduleadded 3 exports
crew_async, crew_class_async, crew_eval_async - 0.5.0
- 0.4.0
- 0.3.02023-06-26 · diff ↗ ·
removed 2 exports
crew_class_router, crew_routeradded 4 exports
crew_class_client, crew_class_schedule, crew_client, crew_schedule - 0.2.1
- 0.1.12023-04-21 · diff ↗
- RR 4.3.0 released · 2023-04-21
- 0.1.02023-04-19 · diff ↗ ·
removed 6 exports
crew_class_launcher_callr, crew_controller_callr, crew_launcher_callr, crew_session_start, crew_session_terminate, crew_waitadded 6 exports
crew_assert, crew_class_launcher_local, crew_controller_local, crew_launcher_local, crew_random_name, crew_retry - 0.0.52023-03-23 · diff ↗
- 0.0.42023-03-21
- RR 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
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