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摘要: ping命令是用来查看网络上另一个主机系统的网络连接是否正常的一个工具。ping命令的工作原理是:向网络上的另一个主机系统发送ICMP报文,如果指定系统得到了报文,它将把报文一模一样地传回给发送者,这有点象潜水艇声纳系统中使用的发声装置。例如,在Linux终端上执行ping localhost命令将会看到以下结果:PING localhost.localdomain (127.0.0.1) from 127.0.0.1 : 56(84) bytes of data.64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=0 ttl=2 阅读全文
posted @ 2014-01-08 10:40 一天不进步,就是退步 阅读(1215) 评论(0) 推荐(0)
摘要: http://www3.ntu.edu.sg/home/ehchua/programming/howto/EclipseCpp_HowTo.htmlEclipse 4.3 (Kepler) for C/C++ ProgrammingHow To Install Eclipse CDT 8.2 and Get StartedEclipse is an open-source Integrated Development Environment (IDE) supported by IBM. The mother site is @ www.eclipse.org. Eclipse is popu 阅读全文
posted @ 2014-01-07 14:58 一天不进步,就是退步 阅读(3401) 评论(0) 推荐(0)
摘要: http://zhidao.baidu.com/link?url=uPWXURahp5KzdXbgrGTb9-r-abGaNC-J7dkhFkMhf062OJ1jeCM5wpBCgDR7bDg8uFrPTW2jL96NeTGjLNs8nKSVN Commit"C:\Program Files\TortoiseSVN\bin\TortoiseProc.exe" /command:commit /path:%f /notempfile /closeonendSVN CommitAll"C:\Program Files\TortoiseSVN\bin\TortoiseP 阅读全文
posted @ 2014-01-06 20:39 一天不进步,就是退步 阅读(650) 评论(0) 推荐(0)
摘要: 1. redis事件的定义/* State of an event based program */typedef struct aeEventLoop { int maxfd; /* highest file descriptor currently registered */ int setsize; /* max number of file descriptors tracked */ long long timeEventNextId; /*下一个定时器的id*/ time_t lastTime; /* Used to detect system ... 阅读全文
posted @ 2014-01-05 22:34 一天不进步,就是退步 阅读(636) 评论(0) 推荐(0)
摘要: http://redis.io/topics/internals-vmVirtual Memory technical specificationThis document details the internals of the Redis Virtual Memory subsystem. The intended audience is not the final user but programmers willing to understand or modify the Virtual Memory implementation.Keys vs Values: what is sw 阅读全文
posted @ 2014-01-04 22:49 一天不进步,就是退步 阅读(1225) 评论(0) 推荐(0)
摘要: 1. Redis内存管理通过在zmalloc.h和zmalloc.c中重写c语言对内存的管理来完成的。 redis内存管理c内存管理原型作用zmallocmallocvoid *malloc(unsigned int num_bytes);分配一块指定大小的内存区域,并返回指向该区域头部的指针,分配失败则返回NULLzcalloccallocvoid *calloc(unsigned n, unsigned size);在内存的动态存储区中分配n个长度为size的连续空间,函数返回一个指向分配起始地址的指针;如果分配不成功,返回NULL。zreallocreallocoid *reall... 阅读全文
posted @ 2014-01-04 22:29 一天不进步,就是退步 阅读(7701) 评论(0) 推荐(0)
摘要: http://docs.oracle.com/cd/E13222_01/wls/docs81/ConsoleHelp/jdbc_connection_pools.html#1106016JDBC Connection Pools[Attributes and Console Screen Reference for JDBC Connection Pools]The following sections explain how to configure and manage JDBC connection pools in the Administration Console:Configur 阅读全文
posted @ 2014-01-03 11:31 一天不进步,就是退步 阅读(3313) 评论(0) 推荐(0)
摘要: 来博客园满一年了,去年的计划200篇随笔加转载的任务已经完成了。庆祝一下!今天是2014年上班的第一天,订立一个新的目标。1. 2014年新的随笔要完成到300篇,及合计要500篇以上。2. 投入更多精力关注大数据云计算、英语、linux、数据结构和算法。3. 关注一些理财投资的事情,古语有云:马无夜草不肥 人无外财不富。告别2013,迎接2014,1314哈哈!希冀丰收的一年。fighting! 阅读全文
posted @ 2014-01-02 08:50 一天不进步,就是退步 阅读(1114) 评论(9) 推荐(0)
摘要: weblogic主机及一台从机启动成功后,在启动从机的时候报错, (HttpClient.java:139) at weblogic.net.http.HttpClient.New(HttpClient.java:212) at weblogic.net.http.HttpURLConnection.connect(HttpURLConnection.java:140) at weblogic.management.Admin.checkAdminServerIsRunning(Admin.java:1669) at weblogic.management.Admin.recon... 阅读全文
posted @ 2013-12-30 22:05 一天不进步,就是退步 阅读(860) 评论(0) 推荐(0)
摘要: http://simpleprogrammer.com/2013/07/08/how-religion-destroys-programmers/discovered something about myself—I have an amazing gift to always make the very best technology choice.No really, it is quite amazing.When I look back at my development career, it seems to me that every programming language I 阅读全文
posted @ 2013-12-29 15:05 一天不进步,就是退步 阅读(302) 评论(0) 推荐(0)
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