What are the main reasons for server crash

The Internet industry is growing , The requirements for servers are also getting higher and higher . Many servers are facing jam 、 Slow , There are even many server crashes . Server crash and downtime have brought many problems to our website , Even make the source site inaccessible , I believe many people have encountered such problems , So why does the server crash ？ Xiaobian shows you some reasons why the server can't work properly .

1、 Program error
Now many development engineers like to use C or C++ Written program , In fact, if C If the pointer is wrong , It will cause the operating system to terminate all programs , Indirectly causing the server system to crash .

2、 The disk is full
The server disk needs to be cleaned regularly to ensure safety and normal use of the server , This is the basic operation of server maintenance , When the disk is overloaded , There is no running space , It will also cause the system to fail to operate normally . So whether it is self maintenance or professional management , We all need to pay attention to this problem .

What is the main problem of server crash ？ What precautions are there ？

3、 Database problem
The number of temporary tables in the database is fixed , And the memory of the query is reserved . When the table data is read, it will be released . But if fixed temporary tables are queried at the same time , Then other query requests will be automatically sorted , Until the temporary table is released, it can work normally .

4、 The server was attacked
Nowadays, cyber attacks often occur , whatever Web server Are facing such dangers , The crash and downtime caused by the attack on the server is a loss that we can't measure . Cyber attacks we cannot predict , But it is necessary to take defensive measures , It is suggested that all websites should take preventive measures , Prepare corresponding protection plan , In order to ensure the first time to restore the use of problems .

5、 The number of visits exceeds the scope of the server
The number of visits to the website is not fixed , Sometimes because of business promotions or some special nodes , The peak flow will suddenly increase a lot , It even exceeds the bearing range of the website server , Once out of this range , It is likely to cause the server to crash , The website is inaccessible .

There are many reasons for server crashes , The above is a few common main reasons . What we can do is regular maintenance , Back up the data , Through the company's team or professional operation and maintenance personnel , Do a good job in server operation and maintenance , Make sure the website is running properly , Ensure server data security .