data of measurement data of a measurement. Field is age . Target: write a CQs that aggregates the data according to the specified time (group by time ()) logic: count the point of the same age example: count the point of age=14 and age=132 i...
because InfluxDB clusters are charged. Now you are ready to use message queuing to solve the normal data Synchronize of the InfluxDB database cluster. But if a database server goes down, and then restart and start, how to recover the data and turn the da...
app, developed by individuals uses individual-owned domain names. Are there any restrictions on domain names when filing for the record? For example, this app can only be a tool class or are there any other restrictions? ...
push the stream to red5 on Ali CVM via mobile phone, and then play it with the videojs plug-in in the browser. It will be very stuttered. Is there a under guidance, but it is very smooth in the local area network? the bandwidth of Ali CVM is 10m, so the...
as detailed in the title: what I just saw simply surprised me. directly using the static page cut by UI (the previous minute) or a Baidu library can also explain my guilt. when I see this place, I feel a little guilty. I always take the marking ...
how to access tomcat, of different ports open on this machine through nginx for example, there are six tomcat on this machine is tomcat1 8080 tomcat2 8081 tomcat3 8082 tomcat4 8083 tomcat5 8084 tomcat6 8085 , respectively. then the server newl...
found a very interesting phenomenon in PHP, but I don t know how to explain it. The code goes like this: $str1 = "01 "; $str1PP; echo $str1; 01 $str1 = "01"; $str1PP; echo $str1; 2 Why is it interesting ...