there are three actions in a Service method doSomething { Database write operations redis write call an api } how do I achieve the transactionality or ultimate consistency of this method? if there are only redis and database operations @ T...
as a rookie, recently, when I learned about distributed consistency-related solutions, I found a very painful problem. Many places say that 2pc and 3PC are used, but there are still many problems with two-phase commit. Since this is the case, why do many...
Why does the pbft algorithm require N > = 3f + 1? or what happens when the primary node is a fault node? ...
package structure is as follows: com.xxx.xxx.package1 com.xxx.xxx.package2 com.xxx.xxx.package3 com.xxx.xxx.common.package1 . each package has an independent controller,service,repository, etc. tested in Spring Boot and JUnit5 environments, @ Com...
take the official tutorial as an example, assume that there are six buttons outside the canvas, corresponding to each item in the xAxis.data. Click a button to make the opposite column green. how can I implement it? do I need to myChart.setOption (op...
I use the plug-in pdf.js to add pdf content to div, using the canvas canvas loop and then use getComputedStyle to get all the properties of the div. The value of height that appears in the CSSStyleDeclaration object is correct attach my code: ...
problem description the difference between the two is that one creates a new memory space, and the other is just a reference relationship, but I want to know why the difference in the source code leads to the difference between deep copy and shallow c...
Project presentation: http: wangweiguang.xyz mindmap Project Code: https: github.com wwg1996 Si. The interface looks like a mind map. I want to know where the code to implement the graphical interface is. For example, I want to change the color of...