我已安装Spark - 1.4.1(有R 3.1.3版本)。目前正在测试SparkR以运行统计模型。我能够运行一些示例代码,例如,
Sys.setenv(SAPRK_HOME = "C:\\hdp\\spark-1.4.1-bin-hadoop2.6")
.libPaths(c(file.path(Sys.getenv("SPARK_HOME"), "R", "lib"), .libPaths()))
#load the Sparkr library
library(SparkR)
# Create a spark context and a SQL context
sc <- sparkR.init(master = "local")
sqlContext <- sparkRSQL.init(sc)
#create a sparkR DataFrame
DF <- createDataFrame(sqlContext, faithful)
sparkR.stop()
接下来,我将rJava
个软件包安装到SparkR
。但它没有安装。给出以下错误。
> install.packages("rJava")
Installing package into 'C:/hdp/spark-1.4.1-bin-hadoop2.6/R/lib'
(as 'lib' is unspecified)
trying URL 'http://ftp.iitm.ac.in/cran/bin/windows/contrib/3.1/rJava_0.9-7.zip'
Content type 'text/html; charset="utf-8"' length 898 bytes
opened URL
downloaded 898 bytes
Error in read.dcf(file.path(pkgname, "DESCRIPTION"), c("Package", "Type")) :
cannot open the connection
In addition: Warning messages:
1: In unzip(zipname, exdir = dest) : error 1 in extracting from zip file
2: In read.dcf(file.path(pkgname, "DESCRIPTION"), c("Package", "Type")) :
cannot open compressed file 'rJava/DESCRIPTION', probable reason 'No such file or directory'
此外,当我在shell上运行SparkR
命令时,它将作为32位应用程序启动。我突出显示了以下版本信息。
所以,请帮我解决这个问题。
答案 0 :(得分:2)
在{** MY code hanging in the below method **}
IntlProc95(z1, 0, z2);
Showmessage('CallDLL_IntlConfig called');
shell中,它似乎改变了安装R软件包的位置。关键是
SparkR
我怀疑
您有两种选择,
Installing package into 'C:/hdp/spark-1.4.1-bin-hadoop2.6/R/lib'
中的lib
参数指定您要安装的位置install.packages
答案 1 :(得分:0)
我解决了这个问题。这是R版本问题,之前我正在使用R 3.1.3。那时它给了我错误, rJava包不适用于当前的R版本。
To solve I follow this steps:
1) Installed new R version i.e R 3.2.2
2) Then update the Path variable and new R version path(Windows -> "Path" -> "Edit environment variables to for your account" -> PATH -> edit the value.)
3) Again restart sparkR shell.
感谢大家的支持!!!