otp authenticator

the process, which means that each process has a separate identity and can effectively monitor the status of each process. When the process exits abnormally, you can snap to the exit event and restart the process (see OTP Supervisor/worker).Go goroutine No identification, goroutine state is not able to monitor.Dynamic reflectionThe features of Erlang dynamic language make it natural to support REPL, and Erlang supports remote shell, and we can connec

cannot start the debugger through the command line. You can use RPC: Call (node, debugger, start, []) to start the debugger, prompting at node @ host. 10 get the state of OTP processes such as gen_server/gen_fsm SYS: get_status/1, 2, applicable to all OTP processes and process based on proc_lib and sys 11 how to set timer Use Erlang: send_after/3 and Erlang: start_timer/3 instead of the timer module. Timer

message is displayed,After loading, you can view the source code through module-> View, and double-click the code line to set the breakpoint. 4. debuggingAfter a module is marked as interpreted, we can set a breakpoint for the code in this module, and the processes started afterwards will enter the debugging status.You can also choose process> attach from the menu to attach a running process. 5. Special CasesWhen we use the behavior of OTP, our autom

) get_path () add_path (DIR) add_pathz (DIR) add_patha (DIR) of the Code module is used to manage the code path. the folders related to kernel and stdlib are loaded first. If the subsequent modules have the same name as the OTP module, they will be overwritten by the modules with the same name in OTP; in other words, the modules in kernel and stdlib will not be overwritten. Erlang Runtime is a prerequisite

? You can refer to OTP design principles: http://www.erlang.org/doc/design_principles/spec_proc.html#id72814 To put it simply, use sys and proce_lib to make the process conform to: Supervision tree. 6.2 special processes This section describes how to write a template that does not use standard behaviors (gen_server, gen_fsm, gen_event) and write a process that fully complies with the OTP design principles t

Note series Erlang environment and sequential ProgrammingErlang concurrent programmingErlang distributed programmingYawsErlang/OTP Date change description2014-11-02AOutline, 1Agenda 0 range Real-world modeling method of Erlang Erlang Process Creation Erlang Process Design Mode Erlang process error handling 1 Erlang concurrency modeling Philosophy Armstrong jumped out of the urgency and eager to explain all-in-one solutions of programming languages in

Red Hat Enterprise Linux (RHEL) 7.1Beta has been released, including a large number of enhancements and improvements, focusing on ease of use, management, security, and performance. This version also supports the POWER8 hardware architecture of the IBMPower system. In addition, IdentityManagement (IdM) supports powerful OTP one-time password authentication through LDAP or Kerberos protocol. This system is implemented by Google's open-source software F

1 need to install related packages1 sudo Install wget Libssl-dev libreadline-dev libncurses5-dev zlib1g-dev M4 Curl Wx-common libwxgtk3. 0-dev autoconf2 The following error occurred　　* Documentation:* Xsltproc is missing.* FOP is missing.* Xmllint is missing.* The documentation can built.Solve1 sudo apt-get install libxml2-utils xsltproc FOP3 The following error,ODBC:ODBC Library–link check failedFix sudo apt-get install unixodbc unixodbc-bin Unixodbc-dev4 Error belowI encounter the similar fa

external memory, the internal memory is usually used to store infrequently changed code, while the external memory is used to store frequently updated code and data. Design Engineers also need to consider whether the memory will be reprogrammed online or replaced with new programmable devices. For applications that require re-programming, we usually choose a microcontroller with Internal flash memory, but the microcontroller with internal OTP or ROM

Target (1) understand the impact of erlang concurrent process scheduling on the load of each cpu core in a multi-core cpu environment; (2) memory increase mechanism of Erlang virtual machine; (3) scheduling of Erlang processes; (4) monitor cpu usage in LinuxLab Environment Lenovo minicomputer: Operating System: RedHat Enterprise LinuxServer release6.4 (Santiago) Kernel version: Linux server1 2.6.32-358. el6.x86 _ 64 #1 SMP CPU model: Intel (R) Xeon (R) CPU E7-4820 @ 2.00 Ghz; 4 CPUs, each with 8

In Erlang programming practice, most of the time is dealing with the list: Taking the Header element, traversing, matching... Why does Erlang and other functional programming languages have a special liking for the list? The referential transparency is referenced in Appendix B of Erlang and OTP in action ). The following text is excerpted from Wikipedia: Referential transparencyAndReferential opaquenessAre properties of parts of computer programs. an

Ranch is a TCP processing program framework. The official explanation of ranch is a socket acceptor pool for TCP Protocols. It aims to provide a convenient, easy-to-use, efficient, and stable basic TCP processing program. I also used it as the basis to write a simple chat program. The underlying communication processing of cowboy is also ranch processing, and dozens of files are used as the basic HTTP server. Today, let's see what magic it has. There is not much nonsense. I will analyze it in th

', N 'column ', n' RatioUp'GOExec sp_addextendedproperty N 'Ms _ description', N 'username', N 'user', N 'dbo', N 'table', N 'useraccounts', N 'column ', N 'username' GO Ftp. cs code: Using System;Using System. Web. Security;Using System. Configuration;Using System. Data;Using System. Data. SqlClient; Namespace host{/// /// Ftp summary./// Public class ftp{Private SqlConnection conHost; Public string UserName; // User NamePublic string Password; // PasswordPublic bool Disable; // Disabled Accou