if MySQL is a few questions about master-slave synchronization 1) can one slave synchronize data from multiple master, or can one slave only work for one master and one master for multiple slave 2) must their database names be the same for master and...
I know that mysql master and slave have been configured, but I don t know what to do if one of them dies: 1. If there is only one master and one slave, do you want to upgrade the master manually in case the master dies? (it seems that you can t call...
package main import "fmt" func main(){ p1:=test() p2:=test() fmt.Println(p1(),p2(),p1()) } func test() func ()int { t:=0 return func() int { tPP return t } } the above is one of my exercises, but the re...
the front and back ends of vue and spring cloud are separated. When the backend uses Oauth2 to redirect registration, the front end reports an error, and chrome runs normally, but Firefox and 360th report the wrong: which is disallowed for cross-origin ...
was asked in the interview what is the specific difference between http and https? What does have to do with tcp ip? Does it have anything to do with three handshakes? could you please explain it well ? ...
reverse the value,key of hashMap < span> Exception in thread "main" java.util.ConcurrentModificationException at java.base java.util.HashMap$HashIterator.nextNode(HashMap.java:1493) at java.base java.util.HashMap$KeyIterator.ne...
made a graded background color (translucent), but the display is inconsistent on Firefox and Chrome. Am I missing something? <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text html; charset=u...