【发布时间】:2017-06-05 09:15:01
【问题描述】:
我正在使用 spark 1.3.0(在 python 中)
我有 DF:
DF.show(3)
ID Date Hour TimeInCluster Cluster Xcluster Ycluster
25342438156 2012-11-30 15:00:00 26 T 130270 165620
25342438156 2012-11-30 16:00:00 86 D 136850 177070
25342438156 2012-11-30 17:00:00 35 D 136850 177070
我正在尝试将该 DF 保存到不存在的配置单元表中
我该怎么做?
谢谢
我将代码更改为:
sqlContext = HiveContext(sc)
FinalDf.write().mode(SaveMode.Overwrite).saveAsTable("myDB.sixuserstablediary")
但我得到了那个错误
py4j.protocol.Py4JJavaError: An error occurred while calling o280.apply.
: org.apache.spark.sql.AnalysisException: Cannot resolve column name "write" among (IMSI, Date, Hour, TimeInCluster, Cluster, Xcluster, Ycluster);
at org.apache.spark.sql.DataFrame$$anonfun$resolve$1.apply(DataFrame.scala:162)
at org.apache.spark.sql.DataFrame$$anonfun$resolve$1.apply(DataFrame.scala:162)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.sql.DataFrame.resolve(DataFrame.scala:161)
at org.apache.spark.sql.DataFrame.col(DataFrame.scala:436)
at org.apache.spark.sql.DataFrame.apply(DataFrame.scala:426)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:379)
at py4j.Gateway.invoke(Gateway.java:259)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:207)
at java.lang.Thread.run(Thread.java:745)
【问题讨论】:
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请参考以下链接:- stackoverflow.com/questions/30664008/…
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我试过但我的代码出错:FinalDf.registerTempTable("mytempTable") sqlContext.sql("create table Sixuserstablediary as select * from mytempTable")
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错误:sqlContext.sql("create table Sixuserstablediary as select * from mytempTable");文件“/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/spark/python/pyspark/sql/context.py”,第 528 行,在 sql 中返回 DataFrame(self. _ssql_ctx.sql(sqlQuery), self) 文件“/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/spark/python/lib/py4j-0.8.2.1-src. zip/py4j/java_gateway.py”,第 538 行,在 call 文件中“/opt/cloudera/parcels/CDH-5.4.7-1.cdh5.4.7.p0.3/lib/spark/ python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py",第 300 行,在 get_return_value