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RSS订阅原创 spark查询报错org.apache.hadoop.hive.ql.exec.Utilities.copyTableJobPropertiesToConf方法不存在NoSuchMethodError
Exception in thread "main" java.lang.NoSuchMethodError: org.apache.hadoop.hive.ql.exec.Utilities.copyTableJobPropertiesToConf(Lorg/apache/hadoop/hive/ql/plan/TableDesc;Lorg/apache/hadoop/conf/Configuration;)V
2022-09-10 13:28:37
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原创 Thread.sleep() 和 System.out.println() 与内存可见性
1.加上volatile关键字内存可见性线程t1结束，不加volatile线程t1死循环。import java.util.concurrent.TimeUnit;public class T01_withVolitile { private volatile boolean stop=false; public static void main(String[] args) throws Exception{ T01_withVolitile c = new T0
2020-07-08 21:24:42
642
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