I have several tasks that need to be executed all the time. In the task, a method is called to get the value, blocking the attempt to get the value for 10 minutes, and then exit the thread if the value is not available 10 minutes later. These tasks are m...
problem description recently, I have been optimizing the related business of the system learn that you can improve the performance of db through thread pooling here comes the problem mysql has its own thread pool. You can add parameters such as ...
problem description where should the Java thread pool be created? Or whether a thread pool is used for one business, multiple businesses, or the whole project ...
but I wonder if I can use a thread pool. Like fixedthreadpool. To limit the number of threads to control the number of visits if the number of visits exceeds the limit of the number of threads, refuse directly. Can you control the number of visits ?...
The question is written on the title, is there any way to be spaced by BAN, when it is applied too fast in crawlers? Or is it that there is no interval in this kind of concurrency? ...
in .Vue, data(){ appData:[ { imgs: "https: img.codeshelper.com upload img 2021 03 14 sc102be2wyb8338.jpg", bannerText: "banner111" }, { imgs: &...
div.model__mask see that others use double sliding lines to divide class names, does this mean anything in the world? (for example, const uses uppercase to make it easier to distinguish types.) Why not use a single slide line, or a crossbar? ...
1. After saving the web page to localstorage, and then closing the browser through the scheduled task, the next time you open the url, you will get the saved content from localstorage, and then you can continue with the operation. I use vue2 2. It won ...
I want to execute the node script at 6:30 every morning. Is that right? 6 30 * * * bin bash node mnt app dituwuyou_schedule server taskService loadNormalData.js ...
my database table user_tree looks like this. This is a left-right value tree, where Level represents the depth of the tree, Lft is the left value, and Rgt is the right value. < table > < tbody > < tr class= "firstRow " > < th width= "147 " > Userid <...