Enum AsyncContinuationExecutor

Defines async continuations behavior.

Namespace: Apache.Ignite.Core.Configuration

Assembly: Apache.Ignite.Core.dll

Syntax

public enum AsyncContinuationExecutor

Fields

Name Description

Custom

Name	Description
Custom	Indicates that custom executor is configured on the Java side. This value should not be used explicitly.
ThreadPool	Executes async continuations on the thread pool (default).
UnsafeSynchronous	Executes async continuations synchronously on the same thread that completes the previous operation. WARNING: can cause deadlocks and performance issues when not used correctly. Ignite performs cache operations using a special "striped" thread pool (see StripedThreadPoolSize). Using this synchronous mode means that async continuations (any code coming after `await cache.DoAsync()`, or code in `ContinueWith()`) will run on the striped pool: Cache operations can't execute while user code runs on the striped thread. Attempting other cache operations on the striped thread can cause a deadlock. This mode can improve performance, because continuations do not have to be scheduled on another thread. However, special care is required to release striped threads as soon as possible.

Indicates that custom executor is configured on the Java side.

This value should not be used explicitly.

ThreadPool

Executes async continuations on the thread pool (default).

UnsafeSynchronous

Executes async continuations synchronously on the same thread that completes the previous operation.

WARNING: can cause deadlocks and performance issues when not used correctly.

Ignite performs cache operations using a special "striped" thread pool (see StripedThreadPoolSize). Using this synchronous mode means that async continuations (any code coming after await cache.DoAsync(), or code in ContinueWith()) will run on the striped pool:

Cache operations can't execute while user code runs on the striped thread.
Attempting other cache operations on the striped thread can cause a deadlock.

This mode can improve performance, because continuations do not have to be scheduled on another thread. However, special care is required to release striped threads as soon as possible.