Python 使用Pyhive插入配置单元调用错误

Python 使用Pyhive插入配置单元调用错误,python,hive,pyhive,Python,Hive,Pyhive,我正在使用pyhive与hive交互 使用下面的代码,SELECT语句运行良好 # Import hive module and connect from pyhive import hive conn = hive.Connection(host="HOST") cur = conn.cursor() # Import pandas import pandas as pd # Store select query in dataframe all_tables = pd.read_sql

我正在使用pyhive与hive交互

使用下面的代码,
SELECT
语句运行良好

# Import hive module and connect
from pyhive import hive
conn = hive.Connection(host="HOST")
cur = conn.cursor()

# Import pandas
import pandas as pd

# Store select query in dataframe 
all_tables = pd.read_sql("SELECT * FROM table LIMIT 5", conn)
print all_tables

# Using curssor 
cur = conn.cursor()
cur.execute('SELECT * FROM table LIMIT 5')
print cursor.fetchall()
在这之前没有问题。当我想将插入蜂巢时

假设我想执行这个查询:
INSERT INTO table2选择Col1,Col2 FROM table1

我试过:

cur.execute('INSERT INTO table2 SELECT Col1, Col2 FROM table1')
我收到了这个错误

pyhive.exc.OperationalError: TExecuteStatementResp(status=TStatus(errorCode=1, errorMessage=u'Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.tez.TezTask', sqlState=u'08S01', infoMessages=[u'*org.apache.hive.service.cli.HiveSQLException:Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.tez.TezTask:28:27', u'org.apache.hive.service.cli.operation.Operation:toSQLException:Operation.java:388', u'org.apache.hive.service.cli.operation.SQLOperation:runQuery:SQLOperation.java:244', u'org.apache.hive.service.cli.operation.SQLOperation:runInternal:SQLOperation.java:279', u'org.apache.hive.service.cli.operation.Operation:run:Operation.java:324', u'org.apache.hive.service.cli.session.HiveSessionImpl:executeStatementInternal:HiveSessionImpl.java:499', u'org.apache.hive.service.cli.session.HiveSessionImpl:executeStatement:HiveSessionImpl.java:475', u'sun.reflect.GeneratedMethodAccessor81:invoke::-1', u'sun.reflect.DelegatingMethodAccessorImpl:invoke:DelegatingMethodAccessorImpl.java:43', u'java.lang.reflect.Method:invoke:Method.java:498', u'org.apache.hive.service.cli.session.HiveSessionProxy:invoke:HiveSessionProxy.java:78', u'org.apache.hive.service.cli.session.HiveSessionProxy:access$000:HiveSessionProxy.java:36', u'org.apache.hive.service.cli.session.HiveSessionProxy$1:run:HiveSessionProxy.java:63', u'java.security.AccessController:doPrivileged:AccessController.java:-2', u'javax.security.auth.Subject:doAs:Subject.java:422', u'org.apache.hadoop.security.UserGroupInformation:doAs:UserGroupInformation.java:1698', u'org.apache.hive.service.cli.session.HiveSessionProxy:invoke:HiveSessionProxy.java:59', u'com.sun.proxy.$Proxy33:executeStatement::-1', u'org.apache.hive.service.cli.CLIService:executeStatement:CLIService.java:270', u'org.apache.hive.service.cli.thrift.ThriftCLIService:ExecuteStatement:ThriftCLIService.java:507', u'org.apache.hive.service.rpc.thrift.TCLIService$Processor$ExecuteStatement:getResult:TCLIService.java:1437', u'org.apache.hive.service.rpc.thrift.TCLIService$Processor$ExecuteStatement:getResult:TCLIService.java:1422', u'org.apache.thrift.ProcessFunction:process:ProcessFunction.java:39', u'org.apache.thrift.TBaseProcessor:process:TBaseProcessor.java:39', u'org.apache.hive.service.auth.TSetIpAddressProcessor:process:TSetIpAddressProcessor.java:56', u'org.apache.thrift.server.TThreadPoolServer$WorkerProcess:run:TThreadPoolServer.java:286', u'java.util.concurrent.ThreadPoolExecutor:runWorker:ThreadPoolExecutor.java:1149', u'java.util.concurrent.ThreadPoolExecutor$Worker:run:ThreadPoolExecutor.java:624', u'java.lang.Thread:run:Thread.java:748'], statusCode=3), operationHandle=None)
如果我直接在配置单元中执行相同的查询,那么一切都会运行良好。 有什么想法吗

注意:我所有的桌子都是外置的

CREATE EXTERNAL TABLE IF NOT EXISTS table ( col1 String, col2 String) stored as orc LOCATION 's3://somewhere' tblproperties ("orc.compress"="SNAPPY");

我不知道如何使用pyhive插入pandas df,但如果您安装了pyspark,一个选项是您可以转换为spark df并使用pyspark来完成

from pyspark.sql import sqlContext
spark_df = sqlContext.createDataFrame(pandas_df)
spark_df.write.mode('append').saveAsTable('database_name.table_name')

您可以使用
spark
执行以下操作

from pyspark.sql import sqlContext

# convert the pandas data frame to spark data frame
spark_df = sqlContext.createDataFrame(pandas_df)

# register the spark data frame as temp table
spark_df.registerTempTable("my_temp_table")

# execute insert statement using spark sql
sqlContext,sql("insert into hive_table select * from my_temp_table")
这将把
数据框中的数据插入到
配置单元
表中


希望这对您有所帮助

解决方案是在连接行中添加用户名
conn=hive.Connection(host=“host”,username=“USER”)

据我所知,配置单元查询分为多种类型的操作(作业)。在执行简单查询时(
ie.SELECT*FROM table
),这会从配置单元元存储中读取数据,而执行查询不需要mapReduce作业或tmp表。但是,一旦切换到更复杂的查询(即使用联接),就会出现相同的错误

文件代码如下所示:

# Import hive module and connect
from pyhive import hive
conn = hive.Connection(host="HOST", username="USER")
cur = conn.cursor()
query = "INSERT INTO table2 SELECT Col1, Col2 FROM table1"
cur.execute(query)

所以也许它需要许可什么的。。我将搜索有关此行为的更多信息并更新答案。

感谢您的快速回复,但我的问题不是插入数据框的内容。。我想执行插入语句。对不起,我误解了。所以您正试图将数据从一个配置单元表插入另一个配置单元表?是的,我可以找到解决方案,但无法解释,我发布了答案。请尝试首先创建一个字符串:query=“insert into dbname.table2选择Col1作为Col1,从dbname.table1选择Col2作为Col2”。然后cur.execute(查询)