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spark中不支持的方法

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首先,我在spark中启动thrift服务器 . /sbin/start-thriftserver.sh 和deamon开始了 .

hadoop   13015     1 99 13:52 pts/1    00:00:09 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java -cp /home/hadoop/spark/lib/hive-jdbc-0.13.0.jar:/home/hadoop/spark-1.4.1-bin-hadoop2.6/sbin/../conf/:/home/hadoop/spark-1.4.1-bin-hadoop2.6/lib/spark-assembly-1.4.1-hadoop2.6.0.jar:/home/hadoop/spark-1.4.1-bin-hadoop2.6/lib/datanucleus-core-3.2.10.jar:/home/hadoop/spark-1.4.1-bin-hadoop2.6/lib/datanucleus-api-jdo-3.2.6.jar:/home/hadoop/spark-1.4.1-bin-hadoop2.6/lib/datanucleus-rdbms-3.2.9.jar
-Xms512m -Xmx512m -XX:MaxPermSize=256m org.apache.spark.deploy.SparkSubmit --class org.apache.spark.sql.hive.thriftserver.HiveThriftServer2 spark-internal

之后,我开始 /bin/pyspark

我的蜂巢版本是0.13.1,

火花版是1.4.1,

hadoop版本是2.7

spark classpath在下面 .

SPARK_CLASSPATH = /home/account/spark/lib/hive-jdbc-0.13.0.jar:/home/account/spark/lib/hive-exec-0.13.0.jar:/ home / account / spark / lib / hive-metastore-0.13.0.jar:/home/account/spark/lib/hive-service-0.13.0.jar:/home/account/spark/lib/libfb303-0.9.0.jar:/ home / account /spark/lib/log4j-1.2.16.jar

在pyspark(python-shell)中,我编写了这段代码 .

>>> df = sqlContext.load(source="jdbc",driver="org.apache.hive.jdbc.HiveDriver", url="jdbc:hive2://IP:10000/default", dbtable="default.test")

但它没有用,我得到了这个错误 . 我该如何解决这个错误?

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/dev/user/ja/spark/python/pyspark/sql/context.py", line 458, in load
    return self.read.load(path, source, schema, **options)
  File "/home/dev/user/ja/spark/python/pyspark/sql/readwriter.py", line 112, in load
    return self._df(self._jreader.load())
  File "/home/dev/user/ja/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", line 538, in __call__
  File "/home/dev/user/ja/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py", line 300, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling o29.load.
: java.sql.SQLException: Method not supported
        at org.apache.hive.jdbc.HiveResultSetMetaData.isSigned(HiveResultSetMetaData.java:141)
        at org.apache.spark.sql.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:132)
        at org.apache.spark.sql.jdbc.JDBCRelation.<init>(JDBCRelation.scala:128)
        at org.apache.spark.sql.jdbc.DefaultSource.createRelation(JDBCRelation.scala:113)
        at org.apache.spark.sql.sources.ResolvedDataSource$.apply(ddl.scala:269)
        at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:114)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        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:722)

我认为hive不支持 HiveResultSetMetaData.isSigned 方法 . 但我不知道如何解决这个错误 . 请帮忙..

谢谢

1 回答

  • 1

    这是不确定的 . 但我回答了我的问题 .

    我认为它是由版本引起的 . 当我执行下面的命令时,我得到“方法不支持”错误 .

    但是当我在spark-1.3.1上发出这个命令时,它是有效的 .

    >>> df = sqlContext.load(source="jdbc",driver="org.apache.hive.jdbc.HiveDriver", url="jdbc:hive2://IP:10000/default", dbtable="default.test")

    所以我认为问题是版本 .

    但这是我的猜测 .

    这个页面可能对您有所帮助 . http://docs.hortonworks.com/HDPDocuments/HDP1/HDP-1.2.4/ds_Hive/jdbc-hs2.html

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