[英]Running query from Amplab-shark to cassandra on hdfs
Please help needed for Amplab-Shark query on cassandra in hdfs. 请在hdfs中的Cassandra上查询Amplab-Shark时需要帮助。
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/mapreduce/task/JobContextImpl
I can successfully run: 我可以成功运行:
But can not run any select statement ie: 但是不能运行任何选择语句,即:
select * from table;
I get the following error: 我收到以下错误:
shark> select * from call limit 1;
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/mapreduce /task/JobContextImpl
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at org.apache.hadoop.hive.ql.metadata.Table.getInputFormatClass(Table.java:302)
at org.apache.hadoop.hive.ql.metadata.Table.<init>(Table.java:99)
at org.apache.hadoop.hive.ql.metadata.Hive.getTable(Hive.java:989)
at org.apache.hadoop.hive.ql.metadata.Hive.getTable(Hive.java:892)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.getMetaData(SemanticAnalyzer.java:1083)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.getMetaData(SemanticAnalyzer.java:1059)
at shark.parse.SharkSemanticAnalyzer.analyzeInternal(SharkSemanticAnalyzer.scala:139)
at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:279)
at shark.SharkDriver.compile(SharkDriver.scala:210)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:337)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:909)
at shark.SharkCliDriver.processCmd(SharkCliDriver.scala:328)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:413)
at shark.SharkCliDriver$.main(SharkCliDriver.scala:233)
at shark.SharkCliDriver.main(SharkCliDriver.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.mapreduce.task.JobContextImpl
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 17 more
Thank you 谢谢
I would need to see the full config and how you set up the tables for a better answer. 我需要查看完整的配置以及如何设置表以获得更好的答案。 Just looking at the error it seems like you are missing some hadoop jars on your classpath 只是看着错误,似乎您在类路径上缺少了一些hadoop jars
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