ansible notify

Java multithreading technology-wait/notify/join,-waitpolicyFunctions of wait/notify The wait () method is used to wait for the thread executing the code. The wait () method is an Object class method to put the current thread into the pre-execution queue and () the execution of the Code stops until it is notified or interrupted. Before calling wait (), you must obtain the object-Level Lock of the object. Tha

"This article goes from" http://www.cnblogs.com/dolphin0520/p/3920385.htmlThe following information can be found in the text descriptions of these three methods:1) The Wait (), notify (), and Notifyall () methods are local methods and are final methods and cannot be overridden.2) The Wait () method that invokes an object can cause the current thread to block, and the current thread must have a monitor (that is, a lock) on this object3) Invoking an obj

It is well known that Java supports multi-threading, there are multiple threads of multi-threaded interaction, there are many ways of interaction, such as by sharing data, or by providing the amount of lock signal, and so on, by using wait and notify to implement thread interaction.To use a good thread of wait and notify to first understand the state of the thread, the state of the thread can be roughly div

The thread is the smallest carrier that the computation program runs, because the hardware level of single single-core CPU develops to a certain bottleneck period, so there is multi-core multi-CPU, which directly leads to the complexity of multithreaded programming of programmers. This shows the importance of threading for high-performance development. So the thread has several states in the computer, how do they switch between them? What's the difference between sleep and wait? How do

Wait-notify sceneTypical wait-notify scenarios are generally related to the following two elements:1. Status variable (state Variable)when a thread needs to wait, it is always due to some condition that is not satisfied. For example, to populate the queue with data, and when the queue element is full, the thread needs wait to stop running. When the queue element is vacant, continue with its execution.2. Con

Tags: statistics TPS Pat for COM git href over targeGitHub Address: Https://github.com/fboender/ansible-cmdb Gathering information from facts, generating a host overviewInstallation wget https://github.com/fboender/ansible-cmdb/releases/download/1.17/ansible-cmdb-1.17.tar.gz tar zxf ansible-cmdb-1.17.tar.gz cd

We often use the wait (), notify (), and Notifyall () methods to communicate between threads. When a thread checks a condition, it enters a wait state, for example, in the producer-consumer model, the producer thread discovers that the buffer is full and waits, and the consumer thread makes the buffer idle and notifies the producer thread by consuming a product. The Call of Notify () or Notifyall () notifie

Sleep, interrupt, wait, and notify The sleep () method is used to stop a thread for a period of time. After the sleep interval expires, the thread may not resume execution immediately. This is because at that time, other threads may be running and not scheduled to give up execution, unless (a) "wake up" Threads have a higher priority. (B) The Running thread is blocked for other reasons.When wait () is a thread interaction, if the thread sends a wait (

Often on the go, about notify and Notifyall in Java, people often have the following statements: Notify only notifies a waiting object, and Notifyall notifies all waiting objects, and all objects continue to run And it seems that there are examples to prove it. The above statement can be said to be true or not. The reason is that one of the key points is that the official statement is as follows: Wait,

Tags: Automated ansible Ansible is an open-source automated O M tool that neither requires a database nor runs background programs (daemons) Easy to use, relatively simple compared with other similar tools (such as puppet) I. Control Machine requirements: The requirements for the ansible control machine are extremely simple. You can install Python or a later ve

The fetch module is the same as the copy function, which is the file transfer between different machines, the former is pulling files from the node to the master machine (the machine with ansible), the latter is transferring files from the master to the node. The template module can insert variables into the copied file.(Official document) the Copy module copies a file on the local box to remote locations. Use the Fetch module to copy files from remot

Install: Dependent packages: A jinja2:python of the designer-friendly modern template language Pyyaml:python a YAML encoding/deserialization function library Paramiko: SSHv2 written in pure Python Protocol function Library HTTPLIB2: A full-featured HTTP client function library installation Ansible[[emailprotected]~]#yumlist|grep-i ansibleFailedtosetlocale,defaultingtoCansible.noarch 1.9.2-1.el6 epelansible-inventory-grapher.noa

1. Introduction1.1. Company environment use Puppet, but I prefer ansible, reason two, first, I am Red Hat loyalty powder:), second, I am more familiar with Python1.2. Ansible Official website: https://www.ansible.com/1.3. Ansible Chinese document website: http://www.ansible.com.cn/2. Environment2.1. Ansible:ansible-2.4.2.0-1.el73. Installation3.1. Direct Yum is g

From http://blog.chinaunix.net/uid-20642150-id-4096719.htmlansible-Batch Linux management toolsHttps://github.com/ansible/ansibleInadvertently see this project, feel very similar to puppet, take the time to understand, found is very good, and support the use of Python to add their own modules, very simple.and relatively speaking, Ansible has the following advantages:1, lightweight, he does not need to go to

Tags: SCP type HTTP D3D firewalld non-dense dir rip colProcedure Note: First stop the Selinx and iptables and make sure that the server CD-ROM has a disc and is linked/etc/init.d/iptables Stop (C6)Systemctl Stop Firewalld (C7)Setenforce 0 temporarily close SELinux 1: Install Epel source1:yum-y Install Lrzsz2:rz + Epel with script and source database binaries3: InstallationExample: Rpm-ivh epel-release-latest-6.noarch (C6) 2: Install AnsibleYum-y Install

Tag: Equals line chown Package date file Service Playbook Word1.1 Synchronizing the MySQL package to the client server for pre-installationPs:mysql Install the package line to the/ansible/roles/mysql/files directory on the ansible server vim/ansible/roles/mysql/tasks/main.yml - name:copy mysql_tar_gz to client copy:src= mysql-5.6. tar.gz dest=/tmp/mysql-5.6.

1. The wait method and the Notify methodBoth methods, including the Notifyall method, are methods in the object class. In the Java api, the wait method is defined as Follows: Public final void Wait () throws Interruptedexception causes the current thread to wait until another thread invokes the notify() method or the method for this notifyAll() object. I N other words, This method behav

Java.lang.reflect.Method.invokeNative (Native Method)02-14 08:14:55.771:e/androidruntime (25572): at Java.lang.reflect.Method.invoke (method.java:511)02-14 08:14:55.771:e/androidruntime (25572): at Android.view.view$1.onclick (view.java:3593)02-14 08:14:55.771:e/androidruntime (25572): ... One more02-14 08:14:55.771:e/androidruntime (25572): caused By:java.lang.IllegalMonitorStateException:object not locked by Thread before notify ()02-14 08:14:55.77

Thread Communication concept: threads are independent individuals in the operating system, but these individuals cannot become a whole without special processing, and the communication between threads becomes one of the necessary ways for the whole. When a thread has a communication command, the interaction between the system is more powerful, while increasing CPU utilization will enable the developer to effectively grasp and supervise the thread task during processing. Use the Wait/