ansible notify

Tornado + ansible + twisted + automatic system development for mongodb O M (2) Source code: #! /Usr/bin/env python # coding: utf-8import OS. pathimport tornado. localeimport tornado. httpserverimport tornado. ioloopimport tornado. optionsimport tornado. webfrom tornado. options import define, optionsimport py1_define ("port", default = 8000, help = "run on the given port", type = int) class Application (tornado. web. application): def _ init _ (self)

Automated operations Tools: ansible Application scenario for multi-process call Ansible API: Application System Check An application system may have a cluster of 20-50 servers, and a preliminary system-level check can be checked with a unified playbook, such as (Df-h command). But deep into the application layer, there are some personalized applications, such as 2 HTTP servers, 20 middleware

The CMDB crawls service information in many ways, using automated tools Saltstack, Ansible, puppet, or using other modules to directly SSH remote connections to fetch server information. Here is a record of using the Ansible API interface to invoke the Setup module fetch.Experiment using two machines Ip System Software 192.168.93.137 Centos6.5_x64

related procedures?The answer is already included in the question.So, how do you tell which programs are relevant? Object lock.As for this question: why must there be synchronized in the Wait,notify place?Because it must be wired to have the same thread as these wait threads Cheng wake them up, this sentence may be difficult to understand, but you will find that: there is a wait program, a thread will often be created multiple instances, such as my l

Wait () notify () Notifyall ( ) These 3 methods are used to coordinate the access of multiple threads to shared data, so they must be used in the synchronized statement block.　　Wait () must be inside the synchronized function or code block, and wait () causes the thread that has already obtained the synchronized function or code block control to temporarily rest and lose control, Because the phenomenon loses control and enters the wait, other threads

Too lazy to write, look directly at the codeMobile Phone class/*** Mobile Phone type * Maximum number of phones produced *@authorHWUA **/ Public classshouji{ Public intMax//define container Maximum capacity Public intCurrentnum;//defining the container's current capacity PublicShouji (intmax) { This. Max =Max; Currentnum= 0; }}Production class//production of mobile phone class Public classSjphone1Implementsrunnable{ PublicShouji con; PublicSjphone1 (Shouji con) {//construct

IMP does not have an import view installed, please notify the DBA J:/back/2>imp system/manager@cw3 fromuser=xjy Touser=xjy file=mydata2005.dmp Import:release 9.0.1.1.1-production on Saturday May 12 09:31:30 2007 (c) Copyright 2001 Oracle Corporation. All rights reserved. Connect to: Oracle8i Enterprise Edition Release 8.1.7.0.0-productionWith the partitioning optionJserver Release 8.1.7.0.0-production IMP-00003: ORACLE Error 942 encounteredORA-009

usage and differences between sleep (), wait (), and notify () and Notifyall (), Suspend and resume (), yield (), join (), interrupt () in Java threadsfrom the operating system's point of view, the OS maintains a ready queue (the queued thread of readiness).And at some point the CPU only serves the thread that is in the queue header in the ready queue. However, the thread that is currently being serviced may feel that the quality of the CPU service is

often on the go, about in Java notify and Notifyall, often people have the following statements: 1 And it seems like there are examples to prove it. The above statement, can be said right, can also say wrong. The reason is that one of the key points is that the official statement is as follows: 1 2 3 4 5 6 7 8 Wait,notify,notifyall: This method should be

1. Yield ()This method is similar to sleep (), except that it is not possible for the user to specify how long to pause, and the yield () method only allows the same priority thread to have an opportunity to execute.2. Wait () and notify (), Notifyall ()These three methods are used to coordinate the access of multiple threads to shared data, so they must be used within the synchronized statement block. The Synchronized keyword is used to protect share

and the other thread produces the result, calling resume () to restore it.yield ():yield () causes the thread to discard the current CPU time, but does not cause the thread to block, that is, the thread is still in an executable state, and the CPU time may be split again at any time. The effect of calling yield () is equivalent to the scheduler thinking that the Java thread synchronization has taken enough time to go to another thread.Wait () notify

()This method is similar to sleep (), except that it is not possible for the user to specify how long to pause, and the yield () method only allows the same priority thread to have an opportunity to execute.4. Wait () and notify (), Notifyall ()These three methods are used to coordinate the access of multiple threads to shared data, so they must be used within the synchronized statement block. The Synchronized keyword is used to protect shared data a

Wait (), notify (), and Notifyall () are methods in the object classFrom the textual description of these three methods, you can know the following information:1 the Wait (), notify (), and Notifyall () methods are local methods and cannot be overridden for the final method.2 The Wait () method that invokes an object can block the current thread and the current thread must own the monitor (that is, the lock

When a thread enters a wait, it must be notify/notifyall by other threads, using Notifyall, to wakeAll threads in the wait state are brought back into the lock contention queue, and notify can only wake one. Note that only one thread can get the lock at any time, that is, only one thread can run the code in synchronized, Notifyall just let the wait thread regain the lock contention, but only one will get th

The communication between multiple threads of the JVM is made up of thread locks, conditional statements, and wait (), notify ()/notifyall.The following is a two different statement that implements an output that enables multiple threads to loop.Package com.app.thread;Import Javax.swing.plaf.SliderUI;/*** To see the problem* @author Gordon**/public class Lockdemo {public static void Main (string[] args) {SYSTEM.OUT.PRINTLN ("lock");Final outturn ot =

thread with a lower priority to be executed, and of course allows a thread with the same priority and high priority to execute, and yield () can only cause the thread with the same priority to have an opportunity to execute.When wait () is called, the thread releases the "lock flag" that it occupies, making other synchronized data in the object that the thread resides in can be used by other threads.Waite () and notify () because they operate on the

Wait () and Policy () are directly affiliated to the Object class, that is, all objects have this pair of methods. It seems incredible at the beginning, but it is actually quite natural, because this pair of methods will release the occupied lock when blocking, and the lock is owned by any object, the wait () method of any object is called to cause thread blocking and the lock on the object is released. However, calling the notify () method of any obj