Warning in sprintf(log_file, i): one argument not used by format '|'
wlandau opened this issue · 3 comments
Recently, I started noticing a warning while using the multiprocess scheduler.
options(clustermq.scheduler = "multiprocess")
clustermq::Q(x = 1:2, fun = function(x) x, n_jobs = 2)
#> Starting 2 processes ...
#> Warning in sprintf(log_file, i): one argument not used by format '|'
#> Warning in sprintf(log_file, i): one argument not used by format '|'
#> Running 2 calculations (0 objs/0 Mb common; 1 calls/chunk) ...
#> Master: [0.7s 14.7% CPU]; Worker: [avg 57.0% CPU, max 2593083.0 Mb]
#> [[1]]
#> [1] 1
#>
#> [[2]]
#> [1] 2Created on 2021-07-19 by the reprex package (v2.0.0)
Session info
sessioninfo::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#> setting value
#> version R version 4.1.0 (2021-05-18)
#> os macOS Catalina 10.15.7
#> system x86_64, darwin17.0
#> ui X11
#> language (EN)
#> collate en_US.UTF-8
#> ctype en_US.UTF-8
#> tz America/New_York
#> date 2021-07-19
#>
#> ─ Packages ───────────────────────────────────────────────────────────────────
#> package * version date lib source
#> backports 1.2.1 2020-12-09 [1] CRAN (R 4.1.0)
#> callr 3.7.0 2021-04-20 [1] CRAN (R 4.1.0)
#> cli 3.0.0 2021-06-30 [1] CRAN (R 4.1.0)
#> clustermq 0.8.95.1 2020-07-13 [1] CRAN (R 4.1.0)
#> codetools 0.2-18 2020-11-04 [1] CRAN (R 4.1.0)
#> crayon 1.4.1 2021-02-08 [1] CRAN (R 4.1.0)
#> digest 0.6.27 2020-10-24 [1] CRAN (R 4.1.0)
#> ellipsis 0.3.2 2021-04-29 [1] CRAN (R 4.1.0)
#> evaluate 0.14 2019-05-28 [1] CRAN (R 4.1.0)
#> fansi 0.5.0 2021-05-25 [1] CRAN (R 4.1.0)
#> fs 1.5.0 2020-07-31 [1] CRAN (R 4.1.0)
#> glue 1.4.2 2020-08-27 [1] CRAN (R 4.1.0)
#> highr 0.9 2021-04-16 [1] CRAN (R 4.1.0)
#> hms 1.1.0 2021-05-17 [1] CRAN (R 4.1.0)
#> htmltools 0.5.1.1 2021-01-22 [1] CRAN (R 4.1.0)
#> knitr 1.33 2021-04-24 [1] CRAN (R 4.1.0)
#> lifecycle 1.0.0 2021-02-15 [1] CRAN (R 4.1.0)
#> magrittr 2.0.1 2020-11-17 [1] CRAN (R 4.1.0)
#> pillar 1.6.1 2021-05-16 [1] CRAN (R 4.1.0)
#> pkgconfig 2.0.3 2019-09-22 [1] CRAN (R 4.1.0)
#> prettyunits 1.1.1 2020-01-24 [1] CRAN (R 4.1.0)
#> processx 3.5.2 2021-04-30 [1] CRAN (R 4.1.0)
#> progress 1.2.2 2019-05-16 [1] CRAN (R 4.1.0)
#> ps 1.6.0 2021-02-28 [1] CRAN (R 4.1.0)
#> purrr 0.3.4 2020-04-17 [1] CRAN (R 4.1.0)
#> R6 2.5.0 2020-10-28 [1] CRAN (R 4.1.0)
#> Rcpp 1.0.7 2021-07-07 [1] CRAN (R 4.1.0)
#> reprex 2.0.0 2021-04-02 [1] CRAN (R 4.1.0)
#> rlang 0.4.11 2021-04-30 [1] CRAN (R 4.1.0)
#> rmarkdown 2.9 2021-06-15 [1] CRAN (R 4.1.0)
#> sessioninfo 1.1.1 2018-11-05 [1] CRAN (R 4.1.0)
#> stringi 1.7.3 2021-07-16 [1] CRAN (R 4.1.0)
#> stringr 1.4.0 2019-02-10 [1] CRAN (R 4.1.0)
#> styler 1.5.1 2021-07-13 [1] CRAN (R 4.1.0)
#> tibble 3.1.2 2021-05-16 [1] CRAN (R 4.1.0)
#> utf8 1.2.1 2021-03-12 [1] CRAN (R 4.1.0)
#> vctrs 0.3.8 2021-04-29 [1] CRAN (R 4.1.0)
#> withr 2.4.2 2021-04-18 [1] CRAN (R 4.1.0)
#> xfun 0.24 2021-06-15 [1] CRAN (R 4.1.0)
#> yaml 2.2.1 2020-02-01 [1] CRAN (R 4.1.0)
#>
#> [1] /Library/Frameworks/R.framework/Versions/4.1/Resources/libraryThis could be because I upgraded my version of R. On R 4.1.0:
sprintf("pattern", "value")
#> Warning in sprintf("pattern", "value"): one argument not used by format
#> 'pattern'
#> [1] "pattern"Created on 2021-07-19 by the reprex package (v2.0.0)
On R 4.0.3:
sprintf("pattern", "value")
#> [1] "pattern"Created on 2021-07-19 by the reprex package (v0.3.0)
Thanks, the warning should be harmless (but you may want to add a %i somewhere in your log file name to separate the different workers)
Proposed change: wrap qsys_multicore.r#L23 in suppressWarnings() (maybe better: catch warning and warn instead that worker logs will be mangled)
Catching sprintf() warnings makes sense to me. Would it also be possible to configure the defaults so no warning arises when the user does not set a log?
That's already the case (or at least it should be) because we're only trying to match the pattern if log_file is a character (default is NULL).
Are you sure you haven't set it in options()?
That's indeed a bug in multiprocess