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? ...
Is there any asynchronous request data in the loop that can be solved with async await? ...
the directory structure she wrote after taking over the Mini Program project from someone else last week is like this the problem now is: tokentokentoken login ...
I use too many packages, but many of them are limited, or there are too many features I don t need the https: paper.dropbox.com and https: medium.com are currently stuck question 1 how does it look like these two editor functions after I c...
sql transaction rollback (rollback) does not take effect. mysql version 5.7.24, macOS10.14, sets autocommit to OFF does not take effect, change the num=5, of On The Road to 1, withdraw the transaction, do not take effect, why is num or 1? < table >...
first question: the web server in lamp is apache, right? What about the application server? Is it php? < hr > question addition: according to the following blog and StackOverflow Q & A, I found that in the lamp or lnmp stack, apache only calls php, ...