Operating System-Distributed System

Distributed System

The fundamental starting point and purpose of the distributed system: the pursuit of multi-level cooperation and strong.

Compared with computer networks, distributed systems:

1. multi-machine cooperation: Automatic task allocation and coordination;

2. Strong: when one or more computers or networks in the system fail, the rest of the system can be automatically restructured into a new system, which can work, you can even continue to do some or all of the work of the invalid part, which is called a graceful degradation.

 

Distributed Operating System: It is responsible for the global operating system in an integrated distributed system. It is responsible for system-wide resource allocation and scheduling, task division, information transmission, control and coordination, and provides users with a unified interface and standard interface.

Its research mainly involves the following issues:

1. Distributed Operating System Model and hierarchy;

2. distributed resource management model, global resource allocation policy, andAlgorithm;

3. Distributed Resource Access Control;

4. Global Processor Allocation and server load balancing;

5. Process Communication Mechanism;

6. data security issues;

7. Consistency of distributed activities.

There is also a Distributed Name. System Fault Tolerance and troubleshooting.