Deadlock and starvation are two key issues in concurrent computing systems, particularly in operating systems and database management.
**Deadlock** occurs when a set of processes become stuck in a state where each process is waiting for a resource that is held by another process in the set. This creates a cycle of dependencies with no process able to proceed. For example, if Process A holds Resource 1 and is waiting for Resource 2 (held by Process B), while Process B is waiting for Resource 1, neither process can continue, resulting in a deadlock.
**Starvation**, on the other hand, happens when a process is perpetually denied necessary resources to proceed because other processes are continuously being given those resources. This usually occurs due to improper resource allocation policies or scheduling algorithms. For instance, if a high-priority process keeps preempting resources from a lower-priority process, the lower-priority process may never get the resources it needs to complete its task.
Both issues need to be managed through effective resource management strategies, such as deadlock detection and recovery mechanisms, and fair scheduling policies to ensure that all processes get a chance to execute.
