Can't create a new thread (errno 12)Error No:1135Problem Analysis:Database tutorial server problems, database operations cannot create new threads. Generally, there are two reasons: 1. Too many threads are opened in the mysql tutorial. 2. The server system memory overflows. 3. damaged environment software or system.Solution:1. For VM users, contact the Space Provider to check whether the memory and system of the database server are running properly. 2. Independent host users: 1) enter the user table in mysql database of myadmin in the php tutorial, edit the database users, and modify the value of max_connections. Change it to a smaller value. 2) contact the server administrator to check whether the server memory and system are normal. If the server memory is insufficient, check which processes consume the server memory, at the same time, consider whether to increase the server memory to improve the load capacity of the entire system.