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? ...
execute when installing Litecoin sudo apt-get install libboost-test-dev I can t install it. I can t find this package. Do I need to add any libraries? ...
< html > < head > < meta charset= "gbk " > < title > shoppingCar < title > < style > < H1 > content ul {< H1 > display:flex; flex-direction:row; justify-content:center; list-style:none; height:36px; } < H1 > content ul li {< H1...
problem description In the react project, when configuration information is injected into pages that need to use JS-SDK, the console prints: wx is not defined no-undef what to do? the environmental background of the problems and what methods yo...
in the model structure tree, how to obtain the dbid of all leaf nodes under the parent node according to the dbid of the parent node one level above the leaf node ...
how to cache node.js with high concurrency? Is there any example of how node.js,javascript caches if you want to turn 5 requests into one? ...