sparklyr | R interface for Apache Spark

 by   sparklyr R Version: v1.8.1 License: Apache-2.0

kandi X-RAY | sparklyr Summary

kandi X-RAY | sparklyr Summary

sparklyr is a R library typically used in Big Data, Spark, Hadoop applications. sparklyr has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

sparklyr: R interface for Apache Spark.
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            kandi-support Support

              sparklyr has a medium active ecosystem.
              It has 906 star(s) with 305 fork(s). There are 74 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 314 open issues and 1654 have been closed. On average issues are closed in 82 days. There are 4 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of sparklyr is v1.8.1

            kandi-Quality Quality

              sparklyr has 0 bugs and 0 code smells.

            kandi-Security Security

              sparklyr has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              sparklyr code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              sparklyr is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              sparklyr releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.
              It has 56124 lines of code, 495 functions and 408 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

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            sparklyr Key Features

            No Key Features are available at this moment for sparklyr.

            sparklyr Examples and Code Snippets

            No Code Snippets are available at this moment for sparklyr.

            Community Discussions

            QUESTION

            Error when creating H2O context using RSparkling
            Asked 2022-Mar-25 at 20:41

            I am running Spark 2.4.4 using Yarn and interfacing using RSparkling and Sparklyr

            As per these instructions I've

            1. Installed Sparklyr
            2. Called the library for Sparklyr
            3. Removed any prior installs of H2O
            4. Installed the latest version of H2O (rel-zorn)
            5. Installed rsparkling 3.36.0.3-1-2.4
            6. Called the library for rsparkling
            7. Specified my spark_config()
            8. Successfully made a connection to Spark using Yarn
            9. Ran h2oConf <- H2OConf()

            When I try to make a H2O context using the h2oConf above I get the following error:

            ...

            ANSWER

            Answered 2022-Mar-25 at 13:08

            It seems that your environment still contains old H2O R library. cacert is an valid parameter and it was introduced in H2O 3.26.0.6.

            Source https://stackoverflow.com/questions/71616995

            QUESTION

            How to connect RStudio Cloud to Spark?
            Asked 2022-Mar-13 at 08:39

            I am using RStudio Cloud and I want to connect to Spark using sparklyr package. I tried a local master and a yarn master. The code is as below.

            ...

            ANSWER

            Answered 2022-Mar-13 at 08:39

            This could be a problem with the version of Spark.

            This works fine for me, on a new project on RStudio Cloud:

            Source https://stackoverflow.com/questions/71454900

            QUESTION

            How to access a Databricks database with sparklyr
            Asked 2022-Jan-13 at 09:04

            New in Azure Databricks environment, I discover the packages SparkR and sparklyr.

            From my notebooks with SparkR, I manage to connect to a database :

            ...

            ANSWER

            Answered 2022-Jan-13 at 09:04

            If it helps anyone, here's what I found that seems to work.

            1. Setting the default data base
            2. Read table in default data base

            Source https://stackoverflow.com/questions/70665587

            QUESTION

            In R and Sparklyr, writing a table to .CSV (spark_write_csv) yields many files, not one single file. Why? And can I change that?
            Asked 2021-Nov-25 at 18:44

            Background

            I'm doing some data manipulation (joins, etc.) on a very large dataset in R, so I decided to use a local installation of Apache Spark and sparklyr to be able to use my dplyr code to manipulate it all. (I'm running Windows 10 Pro; R is 64-bit.) I've done the work needed, and now want to output the sparklyr table to a .csv file.

            The Problem

            Here's the code I'm using to output a .csv file to a folder on my hard drive:

            ...

            ANSWER

            Answered 2021-Aug-10 at 18:45

            Data will be divided into multiple partitions. When you save the dataframe to CSV, you will get file from each partition. Before calling spark_write_csv method you need to bring all the data to single partition to get single file.

            You can use a method called as coalese to achieve this.

            Source https://stackoverflow.com/questions/68731738

            QUESTION

            How to use spark_read_avro from sparklyr R package?
            Asked 2021-Oct-15 at 10:39

            I'm using: R version 4.1.1 sparklyr version ‘1.7.2’

            I'm connected to my databricks cluster with databricks-connect and trying to read an avro file using the following code:

            ...

            ANSWER

            Answered 2021-Oct-15 at 10:39

            I found a workaround using sparkavro package:

            Source https://stackoverflow.com/questions/69543319

            QUESTION

            Extract elements from Spark array column using SparklyR "select"
            Asked 2021-Sep-12 at 00:21

            I have a Spark dataframe in a SparklyR interface, and I'm trying to extract elements from an array column.

            ...

            ANSWER

            Answered 2021-Sep-12 at 00:21

            The following solution came to mind.

            Source https://stackoverflow.com/questions/69137952

            QUESTION

            Getting counts of membership in combination of groups using sparklyr or dplyr
            Asked 2021-Aug-31 at 04:23

            I have a spark dataframe I'm manipulating using sparklyr that looks like the following:

            ...

            ANSWER

            Answered 2021-Aug-30 at 23:18

            The following matches your requested output format, and process the data in the way I understand you want, but (as per the comment by @Martin Gal) does not match the example result you provided.

            Source https://stackoverflow.com/questions/68990890

            QUESTION

            In RStudio, can I visually preview Spark Dataframes in the GUI like I can with normal R dataframes?
            Asked 2021-Aug-12 at 21:11

            Background

            This may be my lack of skill showing, but as I'm working on data manipulation in R, using RStudio, I'm fond of clicking into dataframes in the "Environments" section of the GUI (for me it's in the top-right of the screen) to see how my joins, mutates, etc. are changing the table(s) as I move through my workflow. It acts as a visual sanity check for me; when it comes to tables and dataframes I'm a very visual thinker, and I like to see my results as I code. As an example, I click on this:

            And see something like this:

            The Problem

            Lately, because of a very large dataset (~200m rows), I've needed to do some of my dplyr work inside sparklyr, using a local instance of Apache Spark to work through some data manipulation. It's working mostly fine, but I lose my ability to have little previews of the data because spark dataframe objects look like lists in the Environment pane:

            Besides clicking, is there a way I can "preview" my Spark dataframes inside RStudio as I work on them?

            What I've tried

            So your first thought might be "just use head()" -- and you'd be right! Except that running head(d1, 5) on a local Spark df with 200 million rows takes ... a long time.

            Anything I may be missing?

            ...

            ANSWER

            Answered 2021-Aug-12 at 21:11

            Generally, I believe you need to call collect() on the Spark dataframe. So I would first sample the Spark dataframe, say .001% of the rows (if there's 200 million) with the sparklyr::sdf_sample function, and then collect that sample into a regular dataframe to look at.

            Source https://stackoverflow.com/questions/68763784

            QUESTION

            convert 12 hour clock to 24 hour time in sparklyr
            Asked 2021-Aug-10 at 18:00

            Im trying to convert the following to a 24 hour time using sparklyr:

            ...

            ANSWER

            Answered 2021-Aug-10 at 18:00

            You can set spark.sql.legacy.timeParserPolicy to LEGACY as shown below:

            Source https://stackoverflow.com/questions/68731212

            QUESTION

            Tidymodels + Spark
            Asked 2021-Jul-10 at 04:15

            I'm trying to develop a simple logistic regression model using Tidymodels with the Spark engine. My code works fine when I specify set_engine = "glm", but fails when I attempt to set the engine to spark. Any advice would be much appreciated!

            ...

            ANSWER

            Answered 2021-Jul-10 at 04:15

            So the support for Spark in tidymodels is not even across all the parts of a modeling analysis. The support for modeling in parsnip is good, but we don't have fully featured support for feature engineering in recipes or putting those building blocks together in workflows. So for example, you can fit just the logistic regression model:

            Source https://stackoverflow.com/questions/68259209

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install sparklyr

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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