for example, if several cluster are enabled, it is impossible for each cluster to instantiate its own database. if not, then master instantiates the database, and cluster requests master if it needs to query data. as a result, it feels like the amount ...
multiple processes currently implemented by pm2 cluster, want to know whether to add instance. ...
1 how to achieve automatic rotation to ensure reliability 2 how to enable client An of server1 to push information to client B of server2 in a websocket cluster 2 how to make client An of server1 push information to client B of server2? ...
won t there be any problems with mysql s performance under high concurrency when using master-slave semi-Synchronize replication scheme? After all, semi-Synchronize also has a delay, which will slightly block the thread in addition, I think there is...
I deployed a fastdfs file cluster on five servers, assigned as follows: tracker1:117.48.231.77 tracker2:117.48.231.99 [group1] 117.48.231.94 117.48.231.88 [group2] 117.48.231.84 you can upload files to the storage of two group. but the prob...
print ( " Web page display * ") < H1 > dynamic visualization of define custom toolbar location, web pages < H1 > class TopToolbar (mpld3.plugins.PluginBase): """Plugin for moving toolbar to top of figure"&quo...
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...
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http_build_query accepts an array and returns a query string of type string $arr = array( foo => bar , a => b ); http_build_query($arr); foo=bar&a=b how do I restore foo=bar&a=b strings to an array? is there such a method in ph...
how to get the json data of a page, such as the user profile picture in segmentdefault comments, the number of comments, etc. When you see a https link of the teacher in the video, you directly open a json data page, and you want to do it yourself, and t...
the data passed in the background is as follows let myData = [ [{ id:1, maxvalue:20, value:15, name:"1" },{ id:2, maxvalue:20, value:15, name:"1" },{ id:3, maxvalue:20, va...
< H1 > there are two tables, one merchandise table: shop_goods table structure is as follows: < H1 > CREATE TABLE `shop_goods` ( `goods_id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT ID , `goods_name` char(60) NOT NULL COMMENT , `g...