JDK里面有TimeUnit,看spark源码有个ByteUnit.这个类还是挺不错的. public enum ByteUnit { BYTE (1), KiB (1024L), MiB ((long) Math.pow(1024L, 2L)), GiB ((long) Math.pow(1024L, 3L)), TiB ((long) Math.pow(1024L, 4L)), PiB ((long) Math.pow(1024L, 5L)); private ByteUnit(long m…

// //  该类管理所有的UDP发送 #import <Foundation/Foundation.h> #import "AsyncUdpSocket.h" @protocolUDPManagerDelegate; #define fromHostKey @"fromHost" #define dataKey @"data" #define socketTypeKey @"socketType" #define…

//  该类负责发送2G/3G Http请求的数据 #import <Foundation/Foundation.h> #import "ASIHTTPRequest.h" #import "ASINetworkQueue.h" #import "ASIDownloadCache.h" #import "ASIFormDataRequest.h" #import <SystemConfiguration/Ca…

spark 2.1.1 最近spark任务(spark on yarn)有一个报错 Diagnostics: Container [pid=5901,containerID=container_1542879939729_30802_01_000001] is running beyond physical memory limits. Current usage: 11.0 GB of 11 GB physical memory used; 12.2 GB of 23.1 GB virtual…