如何将 client_protocol 传递给 R 中的 JDBC 驱动程序？

Question

我正在尝试使用dplyr.spark.hive 包连接HiveServer2，但我发生了一个错误，我无法将用户名传递给dbConnect 函数，这可能是我收到错误的原因关于NULLclient_protocol。

有谁知道如何解决这个问题或如何将user/username 传递给dbConnect 函数，其中驱动程序是JDBC？

这个beeline 请求对我来说很好

beeline  -u "jdbc:hive2://host:port/dbname;auth=noSasl" -n mkosinski --outputformat=tsv --incremental=true -f sql_statement.sql > sql_output

但是这个R 等效不：

> library(dplyr.spark.hive)
Warning: changing locked binding for ‘over’ in ‘dplyr’ whilst loading ‘dplyr.spark.hive’
Warning: changing locked binding for ‘partial_eval’ in ‘dplyr’ whilst loading ‘dplyr.spark.hive’
Warning: changing locked binding for ‘default_op’ in ‘dplyr’ whilst loading ‘dplyr.spark.hive’

Attaching package: ‘dplyr.spark.hive’

The following object is masked from ‘package:SparkR’:

    cache

Warning messages:
1: replacing previous import by ‘purrr::%>%’ when loading ‘dplyr.spark.hive’ 
2: replacing previous import by ‘purrr::order_by’ when loading ‘dplyr.spark.hive’ 
> Sys.setenv(HADOOP_JAR = "/opt/spark-1.5.0-bin-hadoop2.4/lib/spark-assembly-1.5.0-hadoop2.4.0.jar")
> Sys.setenv(HIVE_SERVER2_THRIFT_BIND_HOST = 'tools-1.hadoop.srv')
> Sys.setenv(HIVE_SERVER2_THRIFT_PORT = '10000')
> host = 'tools-1.hadoop.srv'
> port = 10000
> driverclass = "org.apache.hive.jdbc.HiveDriver"
> Sys.setenv(HADOOP_JAR = "/opt/spark-1.5.0-bin-hadoop2.4/lib/spark-assembly-1.5.0-hadoop2.4.0.jar")
> library(RJDBC)
> dr = JDBC(driverclass, Sys.getenv("HADOOP_JAR"))
> #url = paste0("jdbc:hive2://", host, ":", port)
> url = paste0("jdbc:hive2://", host, ":", port,"/loghost;auth=noSasl")
> class = "Hive"
> con.class = paste0(class, "Connection") # class = "Hive"
> con = new(con.class, dbConnect(dr, url, username = "mkosinski", database = "loghost"))
log4j:WARN No appenders could be found for logger (org.apache.hive.jdbc.Utils).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Error in .jcall(drv@jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1],  : 
  java.sql.SQLException: Could not establish connection to jdbc:hive2://tools-1.hadoop.srv:10000/loghost;auth=noSasl: Required field 'client_protocol' is unset! Struct:TOpenSessionReq(client_protocol:null, configuration:{use:database=loghost})
> con = new(con.class, dbConnect(dr, url, username = "mkosinski"))
Error in .jcall(drv@jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1],  : 
  java.sql.SQLException: Could not establish connection to jdbc:hive2://tools-1.hadoop.srv:10000/loghost;auth=noSasl: Required field 'client_protocol' is unset! Struct:TOpenSessionReq(client_protocol:null, configuration:{use:database=loghost})

编辑 1

我尝试使用不同的.jar 进行连接（如 cmets 中所建议的那样），看起来之前的问题已解决（我可能使用了错误的.jar）但现在我收到一个错误，告诉我连接不知何故未配置：

> Sys.setenv(HADOOP_HOME="/usr/share/hadoop/share/hadoop/common/")
> Sys.setenv(HIVE_HOME = '/opt/hive/lib/')
> host = 'tools-1.hadoop.srv'
> port = 10000
> driverclass = "org.apache.hive.jdbc.HiveDriver"
> library(RJDBC)
Loading required package: DBI
Loading required package: rJava
> dr = JDBC(driverclass,classPath = c("/opt/hive/lib/hive-jdbc-1.0.0-standalone.jar"))
> dr2 = JDBC(driverclass,classPath = c("/opt/hive/lib/hive-jdbc-1.0.0-standalone.jar",
+                                      "/opt/hive/lib/commons-configuration-1.6.jar"))
> url = paste0("jdbc:hive2://", host, ":", port)
> dbConnect(dr, url, username = "mkosinski", database = "loghost") -> cont
log4j:WARN No appenders could be found for logger (org.apache.hive.jdbc.Utils).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Error in .jcall(drv@jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1],  : 
  java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration
> dbConnect(dr2, url, username = "mkosinski", database = "loghost") -> cont
Error in .jcall(drv@jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1],  : 
  java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration
> sessionInfo()
R version 3.1.3 (2015-03-09)
Platform: x86_64-redhat-linux-gnu (64-bit)
Running under: CentOS Linux 7 (Core)

locale:
 [1] LC_CTYPE=en_US.UTF-8          LC_NUMERIC=C                  LC_TIME=en_US.UTF-8           LC_COLLATE=en_US.UTF-8       
 [5] LC_MONETARY=en_US.UTF-8       LC_MESSAGES=en_US.UTF-8       LC_PAPER=en_US.UTF-8          LC_NAME=en_US.UTF-8          
 [9] LC_ADDRESS=en_US.UTF-8        LC_TELEPHONE=en_US.UTF-8      LC_MEASUREMENT=en_US.UTF-8    LC_IDENTIFICATION=en_US.UTF-8

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

other attached packages:
[1] RJDBC_0.2-5 rJava_0.9-7 DBI_0.3.1  

loaded via a namespace (and not attached):
[1] tools_3.1.3

Answer 1

问题是错误的.jar 规范（JDBC 中的classPath arg）和错误的hiveServer2 url

解释在这里https://stackoverflow.com/a/34792408/3857701