Hangfire 1.8.0-beta1

https://www.hangfire.io/blog/ 1.8.0-beta1 Hangfire.Core • Added – Display deleted jobs in the Realtime and History graphs when supported by storage. • Added – `DeletedState` now have the persisted `Exception` property. • Added – `JobContinuationOptions.OnlyOnDeletedState` to create continuations after a failure. • Added – `Exception` job parameter is passed to continuation when `UseResultsInContinuations` method is used. • Added – `FromExceptionAttribute` to deal with an antecedent exception in a background job continuation. • Added – Passing job parameters in job creation phase (by @brian-knoll-micronetonline). • Added – Allow to filter exception types in `AutomaticRetryAttribute` by using the new `OnlyOn` property. • Added – `IBackgroundProcess.UseBackgroundPool` now allows to pass thread configuration logic. • Added – `IGlobalConfiguration.UseJobDetailsRenderer` method for custom renderers. • Added – `BackgroundJobServerOptions.WorkerThreadConfigurationAction` option • Added – Allow to pass custom data to `ApplyStateContext` and `ElectStateContext` instances. • Added – Preserve custom data dictionary between the entire filter chain. • Added – Fetch "Retries" metric with other statistics when supported by storage • Added – `IGlobalConfiguration.UseDashboardMetrics` extension method to pass multiple metrics at once. • Added – State renderer for the `DeletedState` to display its new exception property. • Added – Virtual `JobStorage.GetReadOnlyConnection` method intended to return `JobStorageConnection` for replicas. • Added – Virtual `JobStorage.HasFeature` method for querying optional features. • Added – Optional `GetSetCount` and `GetUtcDateTime` methods for the `JobStorageConnection` class. • Added – Optional `AcquireDistributedLock` and `RemoveFromQueue` methods for the `JobStorageTransaction` class. • Added – Support for transactional acknowledge using new storage method for better handling some data loss scenarios. • Added – `Factory`, `StateMachine` and `Performer` properties to context classes to avoid injecting services. • Added – Allow to pass transaction to background job state changer when new methods implemented. • Added – Optional `ParametersSnapshot` property for `BackgroundJob` and `JobData` classes to minimize roundtrips in future. • Changed – Use the `AttemptsExceededAction.Delete` option by default in the global automatic retry filter. • Changed – Move job to the `DeletedState` instead of `SucceededState` when its invocation was canceled by a filter. • Changed – `FromParameterAttribute`-based logic now always overwrites arguments, even with non-null values. • Changed – Improved display of real-time chart with more accents on failed and deleted jobs. • Changed – Ignore some members when serializing a `JobFilterAttribute` instance to decrease size • Changed – `ServerHeartbeatProcess` now uses `ThreadPriority.AboveNormal` to prioritize heartbeats. Hangfire.SqlServer • Added – Recommended Schema 8 migration with fixed `JobQueue.Id` column to use `bigint` type. • Added – `SqlServerStorageOptions.PreferMicrosoftDataSqlClient` option to use the corresponding package. • Added – `SqlServerStorage.SchemaVersion` metric for Dashboard UI. • Added – Implement optional experimental transactional acknowledge for SQL Server (`UseTransactionalAcknowledge` option). • Changed – Sliding invisibility timeout-based fetching method is now used by default with 5 minute timeout. • Fixed – Ensure connection is released when exception is thrown when during lock release. Hangfire.NetCore and Hangfire.AspNetCore • Added – `IApplicationBuilder.UseHangfireServer` that accepts custom factory for `IBackgroundProcessingServer`.