Programmer Think

With the development of the Internet, the public has more understanding of the profession of programmer. In addition to high salary, there is too much pressure, black and white reversal, irregular work and rest and so on, which are also things that a programmer must experience. Most programmers are quiet and steady. If they have any question ...

There are many ways of MySQL master-slave replication. This paper mainly demonstrates the master-slave replication based on binlog. Principle of MySQL master-slave replication (also known as A/B replication) The Master records the data changes in the binary log, that is, the file specified in the configuration file log bin, These records are ...

Title Link: Turing Tree General meaning There is a sequence of length n, numbered from 1 to n, and each position has an element value Query: multiple queries, the sum of elements after de duplication in each query [l, r] Problem solving ideas Offline query + segment tree / tree array or chairman tree Acacia topic recommendation Solution ...

STL: Standard Template Library GP: Generic Programming STL is the most successful work of GP!! 1, STL six components AllocatorsContainersAlgorithmsIterators (iterators)AdaptersFunctors The relationship between the six components is shown in the figure below: 1. The first contact is Containers, and the container needs data, whi ...

1, Case description Three classic images (lena, pepper and barbara) are added with Gaussian noise, multiplicative noise and salt and pepper noise respectively. Gaussian white noise: the mean value is 0 and the variance is 0.05. Salt and pepper noise: noise density 0.10. Multiplicative noise: here is the noise with uniformly distributed mean va ...

1. Scheduled tasks In project development, we often need timed tasks to help us do some content, such as sending SMS / station information regularly, data summary and statistics, business monitoring, etc., so we need to use our timed tasks. It is very simple to write timed tasks in Spring Boot. The following is an example of how to create time ...

react source code analysis 12 Status update process Video Explanation (efficient learning): Enter learning setState&forceUpdate Several ways to trigger status update in react: ReactDOM.renderthis.setStatethis.forceUpdateuseStateuseReducer Let's focus on this Setstate and this Forceupdate, hook in Chapter 13 this. Call this in setstat ...

catalogue 1. Netlink communication data structure 1.1 netlink message header: struct nlmsghdr 1.2 socket message packet structure: struct msghdr 1.3 netlink message processing macro 2 application layer sends netlink message to kernel 3. The kernel sends netlink message to the application layer 4. The application layer receives the kernel ...

1. Introduction to Vue 1.1 VUE introduction Vue (pronunciation / vju) ː/， Similar to view) is a progressive framework for building user interfaces. Unlike other large frameworks, Vue is designed to be applied layer by layer from bottom to top. Vue's core library only focuses on view layers, which is not only easy to start, but also easy to i ...

Author: wuXing QQ:1226032602 E-mail:1226032602@qq.com https://dev.mysql.com/doc/refman/5.7/en/replication-implementation-details.html mysql replication working principle replication is a high availability solution provided by mysql. 1. The master records the data changes in the binary log 2. Request the master library to establish a c ...