Question

我正在使用下面提到的R版本：

R version 3.4.3 (2017-11-30) -- "Kite-Eating Tree"
Copyright (C) 2017 The R Foundation for Statistical Computing
Platform: x86_64-apple-darwin15.6.0 (64-bit)

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[R.app GUI 1.70 (7463) x86_64-apple-darwin15.6.0]

我正在使用macOS Sierra版本10.12.6（16G1314）。使用3.1 GHz Intel Core i7处理器，内存16 GB 1867 MHz DDR3，显卡是Intel Iris Graphics 6100 1536 MB。

这是我的R代码崩溃了。出于安全原因，我已将主机名，端口，数据库名称，用户名和密码取出。 con分配是崩溃的原因。我正在尝试使用组织内的代码示例连接到Redshift集群。

library(RPostgreSQL)
drv <- dbDriver("PostgreSQL")
con <- dbConnect(
    drv,
    host = "<host name>",
    port = "<four digit port>"
    dbname = "'dbname = <database name> ssl=require'",
    user = "<user name>",
    password = "<password>"
)

以下是我的R会话信息，直到con分配

R version 3.4.3 (2017-11-30)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Sierra 10.12.6

Matrix products: default
BLAS: /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.4/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods  
[7] base     

other attached packages:
[1] RPostgreSQL_0.6-2 DBI_0.8          

loaded via a namespace (and not attached):
[1] compiler_3.4.3

以下是出于安全原因删除了内容的崩溃报告：

 *** caught segfault ***
address 0x0, cause 'memory not mapped'

Traceback:
 1: .Call(RS_PostgreSQL_newConnection, drvId, con.params)
 2: postgresqlNewConnection(drv, ...)
 3: dbConnect(drv, host = "<hostname>", port = "<port>",     dbname = "'dbname = <database name> ssl=require'", user = "<user name>",     password = "<password>")
 4: dbConnect(drv, host = "<hostname>", port = "<port>",     dbname = "'dbname = <database name> ssl=require'", user = "<user name>",     password = "<password>")

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace

我已尝试使用两个Redshift群集并遇到同样的问题。

问题：如何解决此问题，以便通过R？

连接到我的Redshift群集

奖金问题：最近只是我或R版本是否有错误？

Answer 1

我很快搜索并浏览了Redshift的Amazon文档。他们建议您使用JDBC或ODBC驱动程序。 RPostgreSQL包使用libpq驱动程序，因此我不希望它与Redshift一起使用。

我建议您使用RODBC，RJDBC或odbc，具体取决于最适合您的设置。

通过RPostgreSQL建立数据库连接时R崩溃

1 个答案: