原创文章,转载请注明出处:server非业余研究http://blog.csdn.net/erlib 作者Sunface 联系邮箱:cto@188.com Remsh There's a mechanism entirely similar to the one available through the JCL mode, although invoked in a different manner. The entire JCL mode sequence can by bypassed b…
原创文章.转载请注明出处:server非业余研究http://blog.csdn.net/erlib 作者Sunface 联系邮箱:cto@188.com Exercises 练习 Review Questions复习问题 [1]. What are the 4 ways to connect to a remote node?[2]. Can you connect to a node that wasn't given a name?[3]. What's the command to go…
原创文章,转载请注明出处:server非业余研究http://blog.csdn.net/erlib 作者Sunface 联系邮箱:cto@188.com Processes Trying to get a global view of processes is helpful when trying to assess how much work is being done in the VM in terms of tasks. A general good practice in Erla…
原创文章,转载请注明出处:服务器非业余研究http://blog.csdn.net/erlib 作者Sunface 联系邮箱:cto@188.com Job Control Mode 作业控制模式 The Job Control Mode (JCL mode) is the menu you get when you press ˆG in the Erlang shell. From that menu, there is an option allowing you to connect t…
原创文章,转载请注明出处:server非业余研究http://blog.csdn.net/erlib 作者Sunface , and some of the hidden data I mentioned was missing. If you want the total amount of memory owned by the virtual machine, as in the amount that will trip system limits (ulimit), this valu…
原创文章.转载请注明出处:server非业余研究http://blog.csdn.net/erlib 作者Sunface . Then, in times of need, it's also possible to bypass the tools and go direct to the VM for information. . 甚至在须要时,直接向VM获取信息(无需使用工具). A practical approach to growing a system and keeping i…
原创文章,转载请注明出处:server非业余研究http://blog.csdn.net/erlib 作者Sunface . .To connect to the node, you use the to_erl program: 你能够使用 to_erl程序连接到节点上:-------------------------------------------------------------------------------------$ to_erl /tmp/erl_pipeAttach…
etop是erlang进程信息查看工具,类似于UNIX的top. 一.配置参数 node The measured node. Value: atom() Mandatory setcookie Cookie to use for the etop node - must be the same as the cookie on the measured node. Value: atom() lines Number of lines (processes) to display. Value…
1. 保护式(guard)中如果出错,不会报错,只会返回false! case 1=:1 of true when not erlang:length(t) =:= 1 orelse true -> ok; _ -> error end. Result is: error 保护式中对t (atom) 求length会出错,本应crash掉,但因为在保护式中,默认出错后结束此保护式计算并返回false,这也是为什么保护式不接受复杂的函数,只能用erlang的bif来做的原因之一. 2. tr…
In this tutorial, we will be discussing about how to install Erlang and Elixir in CentOS 7 minimal server. Before installing them, let us see a brief explanation of each. About Erlang Erlang is an open source programming language used to build massiv…
在window中调试的时候我们可以通过启动多个cmd窗口运行Erlang节点,在生产环境中我们需要Erlang服务在Centos服务器上后台运行;这就需要在启动的时候添加启动参数detached来脱离终端: -detached Starts the Erlang runtime system detached from the system console. Useful for running daemons and backgrounds processes. Implies -n…
把之前阅读资料的时候记下的东西,整理了一下. Adding special-purpose processor support to the Erlang VM P23 简单介绍了Erlang Compiler和Beam文件格式; The Erlang Compiler in short 章节提到了 Core Erlang 这个之前有提到过: [Erlang 0120] Know a little Core Erlang http://www.cnblogs.com/me-sa/p/know…
之前,在 [Erlang 0126] 我们读过的Erlang论文 提到过下面这篇论文: On Preserving Term Sharing in the Erlang Virtual Machine 地址: http://user.it.uu.se/~kostis/Papers/erlang12_sharing.pdf 摘要:In this paper we describe our experiences and argue through examples why flattening t…
epmd进程和Erlang节点进程如影随形,在Rabbitmq集群,Ejabberd集群,Couchbase集群产品文档中都会有相当多的内容讲epmd,epmd是什么呢? epmd 是Erlang Port Mapper Daemon的缩写,全称足够明确表达它的功能了(相比之下,OTP就是一个难以从字面理解的名字);epmd完成Erlang节点和IP,端口的映射关系,比如在我的测试机上, [root@nimbus data2]# epmd -names epmd: up and run…
虽然忙,有些事还是要抽时间做; Erlang Resources 小站 2014年1月~6月资讯合集,方便检索. 小站地址: http://site.douban.com/204209/ 1月 114 RR Elixir with José Valim by CHARLES MAX WOOD on JULY 17, 2013 http://rubyrogues.com/114-rr-elixir-with-jose-valim/ "The Erlang Runtime Sy…
Erlang/OTP 17.0 has been released http://www.erlang.org/download/otp_src_17.0.readme Erlang/OTP 17.0发布了,不过Maps相关的设计还没有尘埃落定,目前: With Maps you may for instance: -- M0 = #{ a => 1, b => 2}, % create associations -- M1 = M0#{ a := 10 }…
声明:本文讨论的Erlang Maps是基于17.0-rc2,时间2014-3-4.后续Maps可能会出现语法或函数API上的有所调整,特此说明. 前情提要: [Erlang 0116] 当我们谈论Erlang Maps时,我们谈论什么 Part 1 继续昨天的话题,在Erlang Factory SF Bay Area 2013有一个议题:"Where are we on the Map?" [PDF ],这个Talk基本上就是选取了EEP43的要点,有兴趣的同学可以FQ观看视频 W…
Erlang 增加 Maps数据类型并不是很突然,因为这个提议已经进行了2~3年之久,只不过Joe Armstrong老爷子最近一篇文章Big changes to Erlang掀起不小了风浪.这篇文章用了比较夸张的说法:"Records are dead - long live maps !",紧接着在国内国外社区这句话就传遍了.马上就有开发者忧心忡忡的在Stackoverflow上提问:Will Erlang R17 still have records? 套…