Operation and maintenance, think before the pit than developing a good point, but looking back feeling like a deep pit development, as difficult to deal with things, with the same urgent need its own continuous learning to keep pace with technical operation and maintenance requirements, as well as learning how to communicate with customers, clients learn how to adapt to all the changes brought about by the change. Prior to the operation and maintenance of the word is simply that: to give the system a problem timely repair, or collection issues timely feedback to the developers or project managers. Turning now to come from the following areas: server, database, software system, which a few customers to comprehensive treatment, so in order to get things done.
On operation and maintenance, the definition given by Wikipedia: operation and maintenance (English: Ops ), also known as operation and maintenance engineers , technical personnel are collectively class operation and maintenance. Operation and maintenance responsibilities of personnel planning information is based on business needs, network services, through network monitoring, early warning events, service scheduling, troubleshooting upgrades and other means to make the service available in a long-term stable state. Feel the biggest difference is that with the implementation of the operation and maintenance is more focused on security, focusing on how to protect the system, database, server can function properly and can promptly identify problems and propose solutions, system files, back up the database in a timely manner is also extremely important, according to the actual operation and maintenance in time to some useful feedback to the developers to help develop technical adjustment system development and database design. Operation and maintenance compared with the embodiment, the operation and maintenance more emphasis on technology. Therefore, operation and maintenance is divided into: network operation and maintenance, computer room operation and maintenance, server operation and maintenance, database operation and maintenance (DBA), IT operation and maintenance (load balancing, traffic monitoring, etc.).
Network operation and maintenance and computer room operation and maintenance is more contact with the hardware, software, and I prefer, so I want to focus on server operation and maintenance, database operation and maintenance, IT operation and maintenance.
Server operation and maintenance: that before the truth has been less concerned about their own, but with the practical application of business systems, only to find that this will not be concerned about a big trouble. Such as: fast database incremental, disk space was timely follow-up observations, otherwise it will lead to a series of questions, the business stops, even simple Select query can not be executed. The following is the actual situation of their own experience:
1, due to disk full plate, which led to a procedural error when writing data services, which led directly to the collapse of this service, even the configuration file (configuration file to configure large amount of information) contents are lost;
2, due to disk full plate, which led to the interface service initiated data queries can not be executed properly, the business system login function can not be used directly;
3, due to disk full plate, which led to all database backup plan to throw an exception, reported no extra space;
4, due to disk full plate, several business systems and reduced response rate is very powerful.
5, because the amount of traffic data increments than before evaluation, the FTP server will be almost paralyzed.
6, six servers were shut down in the case without the knowledge of their own, leading to a customer led demonstration system function, the main function of a total standstill can not be used, even more terrible is that the scene is not only leading customers, as well as other leaders of the unit.
So I promptly deployed on the server Zabbix, the server at any time concerned about the situation, hoping to avoid the problems encountered above.
Operation and maintenance of the database: a database operation and maintenance for me, not the election, if the database is abnormal, customers and corporate leaders who are the first to find me, no way to get active dry up. Database business systems involved in the current respectively: Mariadb, SQLServer and Oracle, because Oracle is among libraries, data storage is not the core business data, and its data will be synchronized in time to Mariadb database, so for the time being do not control. The other two databases are to maintain their focus, Mariadb database 10 business database, were placed on two servers, database data and several of these monthly increments 10G; SQLServer is currently more than 20 G, incremental yet can. Operation and maintenance of the database is currently the main focus is on the memory usage and database backup.
IT operation and maintenance (O & M system): The current business systems large and small, nearly 20, a high frequency of use, there are 10, so the focus is timely attention to the core issue of traffic and where the server disk and so on. If there is a need then promptly set up load balancing environment, and solve some of the problems can affect normal operation.