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當我嘗試在配置單元使用spark時查詢配置單元中的表時遇到錯誤。例如，當我這樣做：Hive錯誤：線程「main」中的異常java.lang.NoClassDefFoundError：scala/collection/Iterable
select count(*) from ma_table;
我得到這個：
Exception in thread "main" java.lang.NoClassDefFoundError: scala/collection/Iterable
at org.apache.hadoop.hive.ql.parse.spark.GenSparkProcContext.<init>(GenSparkProcContext.java:163)
at org.apache.hadoop.hive.ql.parse.spark.SparkCompiler.generateTaskTree(SparkCompiler.java:195)
at org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:267)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10947)
at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:246)
at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:250)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:477)
at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1242)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1384)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1171)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1161)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:232)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:183)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:399)
at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:776)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:714)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:641)
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:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:234)
at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
Caused by: java.lang.ClassNotFoundException: scala.collection.Iterable
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 23 more
經過一番研究，我想是這樣我的.bashrc（和採購它;））：
for f in ${HIVE_LIB}/*.jar; do
CLASSPATH=${CLASSPATH}:$f;
done
for f in ${SPARK_HOME}/jars/*.jar; do
CLASSPATH=${CLASSPATH}:$f;
done
for f in ${SCALA_HOME}/lib/*.jar; do
CLASSPATH=${CLASSPATH}:$f;
done
我檢查過，並且CLASSPATH中的所有這些罐子仍然出現錯誤。 我使用的是Hive 2.1，Hadoop 2.8和Spark 2.1。 任何想法？提前致謝！