Christian created ARROW-7520: -------------------------------- Summary: Arrow / R - too many batches causes a crash Key: ARROW-7520 URL: https://issues.apache.org/jira/browse/ARROW-7520 Project: Apache Arrow Issue Type: Bug Components: R Affects Versions: 0.15.1 Environment: - Session info -----------------------------------------------------------------------------------------------------------------------------------------------------------
setting value version R version 3.6.1 (2019-07-05) os Windows 10 x64 system x86_64, mingw32 ui RStudio language (EN) collate English_United States.1252 ctype English_United States.1252 tz America/New_York date 2020-01-08 - Packages --------------------------------------------------------------------------------------------------------------------------------------------------------------- ! package * version date lib source acepack 1.4.1 2016-10-29 [1] CRAN (R 3.6.1) arrow * 0.15.1.1 2019-11-05 [1] CRAN (R 3.6.2) askpass 1.1 2019-01-13 [1] CRAN (R 3.6.1) assertthat 0.2.1 2019-03-21 [1] CRAN (R 3.6.1) backports 1.1.5 2019-10-02 [1] CRAN (R 3.6.1) base64enc 0.1-3 2015-07-28 [1] CRAN (R 3.6.0) bit 1.1-14 2018-05-29 [1] CRAN (R 3.6.0) bit64 0.9-7 2017-05-08 [1] CRAN (R 3.6.0) blob 1.2.0 2019-07-09 [1] CRAN (R 3.6.1) callr 3.3.1 2019-07-18 [1] CRAN (R 3.6.1) cellranger 1.1.0 2016-07-27 [1] CRAN (R 3.6.1) checkmate 1.9.4 2019-07-04 [1] CRAN (R 3.6.1) cli 1.1.0 2019-03-19 [1] CRAN (R 3.6.1) 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3.6.1) zoo * 1.8-6 2019-05-28 [1] CRAN (R 3.6.1) [1] C:/Users/cklar/Desktop/R packages [2] C:/Program Files/R/R-3.6.1/library P -- Loaded and on-disk path mismatch. D -- DLL MD5 mismatch, broken installation. Reporter: Christian Fix For: 0.15.1 Hi, When creating north of 200-300 batches, the writing to the arrow file crashes R - it doesn't even show an error message. Rstudio just aborts. I have the feeling that maybe each batch becomes a stream and R has issues with the connections, but that's a total guess. Any help would be appreciated. ## Here is the function. When running it with 3000 it crashes immediately. Before that I ran it with 100, and then increased it slowly, and then it randomly crashed again. write_arrow_custom(data.frame(A=c(1:100000),B=c(1:100000)),'C:/Temp/test.arrow',3000) write_arrow_custom <- function(df,targetarrow,nrbatches) { ct <- nrbatches idxs <- c(0:ct)/ct*nrow(df) idxs <- round(idxs,0) %>% as.integer() idxs[length(idxs)] <- nrow(df) df_nav <- idxs %>% as.data.frame() %>% rename(colfrom=1) %>% mutate(colto=lead(colfrom)) %>% mutate(colfrom=colfrom+1) %>% filter(!is.na(colto)) %>% mutate(R=row_number()) stopifnot(df_nav %>% mutate(chk=colto-colfrom+1) %>% '$'('chk') %>% sum()==nrow(df)) table_df <- Table$create(name=rownames(df[1,]),df[1,]) writer <- RecordBatchFileWriter$create(targetarrow,table_df$schema) df_nav %>% dlply(c('R'),function(df_nav){ catl(glue('\{df_nav$colfrom[1]}:\{df_nav$colto[1]} / \{df_nav$R[1]}...')) tmp <- df[df_nav$colfrom[1]:df_nav$colto[1],] writer$write_batch(record_batch(name = rownames(tmp), tmp)) NULL }) -> batch_lst writer$close() rm(batch_lst) gc() } -- This message was sent by Atlassian Jira (v8.3.4#803005)