every amount change of the user is recorded in this table. website users about 100W, now the table is too big, thought of sub-table, how to divide it? Table structure! user id is a 32-bit guid ...
to query the data after horizontal split, suppose the data of a business is split horizontally, and the monthly records are stored in a table. The data of each table is about 1000w. There are already more than 20 tables, such as table_201606,.,table_201...
http.createServer((request, response) => { response.setHeader( Access-Control-Allow-Origin , * ) request.on( data , data => { console.log(data) }) request.on( end , () => { console.log(request) response.end( succes...
1. The statistics API returns msg_data_id, to make a fool of people. ...
< H2 > the first case < H2 > package com.btmans.thread; public class TestSync implements Runnable{ int b = 100; public synchronized void m1() throws Exception{ b = 1000; Thread.sleep(5000); System.out.println("b=&q...
can the data returned by the management interface be printed to the specified log by nginx? Instead of printing the entire request information? (big people who know this area can explain these two kinds of logs in detail.) ...
I have been doing the function of uploading avatars on mobile in the past two days. I want to compress and upload images larger than 400kb. Images larger than 400kb have not been successfully compressed and no errors have been reported. Later, I re-read...