importjava.io.File;importjava.io.FileNotFoundException;importjava.io.FileReader;publicclassFileOperations{publicstaticvoidreadFile(StringfilePath){try{Filefile=newFile(filePath);if(!file.exists()){thrownewFileNotFoundException("File does not exist: "+filePath);}FileReaderreader=newFileReader(file);/...
如果文件存在,我们可以使用Java的File类的delete()方法来删除文件。 Filefile=newFile("path/to/file.txt");if(file.exists()){file.delete();}else{System.out.println("File does not exist.");} 1. 2. 3. 4. 5. 6. 完整代码示例 importjava.io.File;publicclassFileDeletionExample{publicstaticvoid...
import java.io.File; public class FileExistsExample { public static void main(String[] args) { File file = new File("path/to/file.txt"); if (file.exists()) { System.out.println("File exists."); } else { System.out.println("File does not exist."); } } } 复制代码 在上面的示例...
下面是一个简单的示例代码: import java.io.File; public class FileExistsExample { public static void main(String[] args) { File file = new File("test.txt"); try { if (file.exists()) { System.out.println("File exists!"); } else { System.out.println("File does not exist."); } }...
Application application_1397132528617_2814 failed 2 times due to AM Container for appattempt_1397132528617_2814_000002 exited with exitCode: -1000 due to: File file:/tmp/hadoop-yarn/staging/hadoop/.staging/job_1397132528617_2814/job.jar does not exist .Failing this attempt.. Failing the application...
1 hadoop jar hadoop-mapreduce-examples-2.6.0-cdh5.15.1.jar pi 2 3 会报错java.io.FileNotFoundException: File does not exist巴拉巴拉 解决: 第一步:在yarn-site.xml中添加临时存放目录的配置 第二步:重启yarn 好人一生平安:) 乃好 2019-11-17 16:17:49 源自:5-7 提交example案例到YARN上运行 3002...
Sqoop 抽数报错: java.io.FileNotFoundException: File does not exist 一、错误详情 2019-10-17 20:04:49,080 INFO [IPC Server handler 20 on 45158] org.apache.hadoop.mapred.TaskAttemptListenerImpl: Diagnostics report from attempt_1567429685851_474405_m_000001_0: Error: java.lang.RuntimeException...
java.io.FileNotFoundException: File does not exist: hdfs://ABC.xyz.net:8020/user/yarn/mapreduce/mr-framework/3.0.0-cdh6.3.2-mr-framework.tar.gz Labels: Apache Hadoop backlashhardik Explorer Created on 01-02-2020 02:53 AM - edited 01-02-2020 02:56 AM I was ...
Caused by: java.io.FileNotFoundException: File does not exist: hdfs://hadoop101:9000/directoryat org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1309) at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1301) ...
Hive Reader 配置readMode为hdfs方式的情况下同步Hive表数据报block文件不存在问题: java.io.FileNotFoundException: File does not exist: /user/hive/warehouse/... 问题原因 1、Hive Reader配置readMode为hdfs方式的时候,底层读取数据的方式是基于HDFS文件方式读取数据,会先在HDFS上根据表找到数据对应的Block块,然后...