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[英]after packaging and running app I get java.lang.ClassNotFoundException: org.apache.hive.jdbc.HiveDriver
[英]ERROR: java.lang.ClassNotFoundException: org.apache.hive.jdbc.HiveDriver postgres Foreign data wrapper
=# SELECT code, total_emp FROM sample_07 ORDER BY code LIMIT 3;
**ERROR: java.lang.ClassNotFoundException: org.apache.hive.jdbc.HiveDriver**
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at HadoopJDBCUtils.ConnInitialize(HadoopJDBCUtils.java:74)
/usr/local/pgsql/lib under this directory i have got the following JARs
hive-jdbc-2.1.0.2.6.5.8-7-standalone.jar
hadoop-common-2.8.3-amzn-0.jar
Hadoop_FDW.jar
是否需要更改JAR文件的任何版本,或者是否缺少我創建的擴展hadoop_fdw
就我而言,也需要重新啟動數據庫,並設置類路徑
echo $HADOOP_FDW_CLASSPATH
/usr/local/pgsql/lib/Hadoop_FDW.jar:/usr/local/pgsql/lib/hive-jdbc-2.1.0.2.6.5.8-7-
standalone.jar:/usr/local/pgsql/lib/:/home/ec2-user/agensgraph/contrib/hadoop_fdw/
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