用fs.copyToLocalFile( hdfsPath,localPath);下载hdfs的文件会报NullPointerException,具体报错为: java.lang.NullPointerException at java.lang.ProcessBuilder.start(ProcessBuilder.java:) at org.apache.hadoop.util.Shell.runCommand(Shell.java:) at org.apache.hadoop.util.S…
MyEclipse Server view报错解决方法 方法/步骤 启动MyEclipse,弹出一个框,报错. -------------------------------------------------------------------------------- Errors occurred during the build. Errors running builder 'DeploymentBuilder' on project 'SeNT-DL'. java.lang.…
redis使用连接池报错解决redis使用十几小时就一直报异常 redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool at redis.clients.util.Pool.getResource(Pool.java:22) at com.derbysoft.jredis.longkeytest.BorrowObject.run(BorrowObject.jav…
linux下启动dbca或netmgr类的图形界面报错解决 Xlib: connection to ":0.0" refused by server Xlib: No protocol specified …… 解决办法: www.2cto.com exit 退到root用户下执行下面代码 Java代码 xhost local:oracle non-network local connections being added to access control l…