[jira] [Updated] (SPARK-16785) dapply doesn't return array or raw columns

["Shivaram Venkataraman (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-16785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shivaram Venkataraman updated SPARK-16785:
------------------------------------------
    Assignee: Clark Fitzgerald

> dapply doesn't return array or raw columns
> ------------------------------------------
>
>                 Key: SPARK-16785
>                 URL: https://issues.apache.org/jira/browse/SPARK-16785
>             Project: Spark
>          Issue Type: Bug
>          Components: SparkR
>    Affects Versions: 2.0.0
>         Environment: Mac OS X
>            Reporter: Clark Fitzgerald
>            Assignee: Clark Fitzgerald
>            Priority: Minor
>             Fix For: 2.0.1, 2.1.0
>
>
> Calling SparkR::dapplyCollect with R functions that return dataframes produces an error. This comes up when returning columns of binary data- ie. serialized fitted models. Also happens when functions return columns containing vectors.
> The error message:
> R computation failed with
>  Error in (function (..., deparse.level = 1, make.row.names = TRUE, stringsAsFactors = default.stringsAsFactors())  :
>   invalid list argument: all variables should have the same length
> Reproducible example: https://github.com/clarkfitzg/phd_research/blob/master/ddR/spark/sparkR_dapplyCollect7.R
> Relates to SPARK-16611



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