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A deadlock usually occurs when there are multiple threads running. Let us say there are 3 threads A, B and C running.
A is holding resources X and is currently for the resource Y to complete the operation. B is holding resources Y and is waiting for resource Z to complete. C is holding Z and is waiting for X to complete. This is called a deadlock, All the 3 threads are waiting on some resources that are being held by other waiting threads. This causes an indefinite waiting which is termed as a Deadlock
What else can I help you with?
What is Deadlock avoidance?
Deadlock is a situation when two thread are waiting on each other to release a resource. Deadlock avoidance methods are : 1) ostrich approach 2) eliminating hold and wait situation 3) eliminating mutual exclusion
Can deadlock be resolved without selecting a victim?
Yes, deadlock can be resolved by avoiding the conditions that lead to it, breaking the circular wait, or using deadlock prevention techniques like resource allocation graph, timeouts, or priority-based techniques. In some cases, deadlock can also be prevented by ensuring a single thread holds all resources simultaneously or by using a deadlock detection algorithm to preemptively handle it.
What is the difference between deadlock and a race condition?
Race ConditionsA race condition occurs when two threads access a shared variable at the same time. The first thread reads the variable, and the second thread reads the same value from the variable. Then the first thread and second thread perform their operations on the value, and they race to see which thread can write the value last to the shared variable. The value of the thread that writes its value last is preserved, because the thread is writing over the value that the previous thread wrote.DeadlocksA deadlock occurs when two threads each lock a different variable at the same time and then try to lock the variable that the other thread already locked. As a result, each thread stops executing and waits for the other thread to release the variable. Because each thread is holding the variable that the other thread wants, nothing occurs, and the threads remain deadlocked.
What is deadlock in java?
A deadlock is a situation that comes up when multiple threads are being used in a single java program. During thread execution, threads can access any number of methods they want. To ensure that data is consistent during execution, the methods have a property called "synchronized" which prevents multiple threads from accessing a single method. So under this scenario lets take a look at this example: Thread A is currently holding a lock on Method A and needs to execute method B in order to complete. Thread B is currently holding a lock on Method B and needs to execute method A in order to complete. The above is a classic example of deadlock.
What is the Difference between procedure and thread?
A procedure is the way something is accomplished. In a computer, the procedure might be an application or a function within an application that causes something specific to be accomplished. A thread is the path of execution through the application. The thread can only take one branch of a decision point, so if an application says something like, "if X==55 (X = X+Y), and X in fact DOES equal 55, then the thread would go through that execution point.
What are the various strategies are used to handle deadlock and what is centralized and distributed deadlock detection and prevention?
There are four strategies of dealing with deadlock problem:1. The Ostrich ApproachJust ignore the deadlock problem altogether.2. Deadlock Detection and RecoveryDetect deadlock and, when it occurs, take steps to recover.3. Deadlock AvoidanceAvoid deadlock by careful resource scheduling.4. Deadlock PreventionPrevent deadlock by resource scheduling so as to negate at least one of the four conditions.
What is deadlock what is starvation How do they differ from each other?
A deadlock occurs when two (or more) threads have created a situation where they are all blocking each other. ... Starvation occurs when a scheduler process (i.e. the operating system) refuses to give a particular thread any quantity of a particular resource (generally CPU).
What is an antonym for the word deadlock?
The antonym for deadlock is agreement.
What is the difference between thread based and process based?
Process based is much time as comparison as thread based. as well as Thread based application is cost effective. Process based application has its own address space so it take more cost. Alok Gupta. India.
What are some strategies for resolving thread contention in a multi-threaded application?
Some strategies for resolving thread contention in a multi-threaded application include using synchronization mechanisms like locks, semaphores, and mutexes to control access to shared resources, implementing thread-safe data structures, reducing the scope of synchronized blocks, and using thread pooling to limit the number of active threads. Additionally, optimizing the design of the application to minimize the need for shared resources can help reduce thread contention.
When was Wedlock Deadlock created?
Wedlock Deadlock was created in 1947.
When was Holy Deadlock created?
Holy Deadlock was created in 1934.
