Fix LISTEN/NOTIFY connection self-healing#420
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azygis merged 2 commits intohangfire-postgres:masterfrom Feb 7, 2026
Merged
Fix LISTEN/NOTIFY connection self-healing#420azygis merged 2 commits intohangfire-postgres:masterfrom
azygis merged 2 commits intohangfire-postgres:masterfrom
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When EnableLongPolling is enabled, the ListenForNotificationsAsync method only caught TaskCanceledException, causing all other exceptions (network timeouts, connection drops) to propagate up and kill the worker thread. This change adds self-healing reconnection logic that catches connection failures, reconnects after a 1 second backoff, and continues the loop. Fixes hangfire-postgres#410
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@azygis ? :) |
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@frankhommers ?:) |
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Will try to merge and publish this week. |
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Pinned [Hangfire.AspNetCore](https://github.com/HangfireIO/Hangfire) at 1.8.23. <details> <summary>Release notes</summary> _Sourced from [Hangfire.AspNetCore's releases](https://github.com/HangfireIO/Hangfire/releases)._ ## 1.8.23 ### Release Notes #### Hangfire.Core * **Changed** – Use stable sorting algorithm for background job filters again (by @jirikanda). * **Fixed** – Custom `AutomaticRetryAttribute` is ignored under certain conditions regression from 1.8.14 (by @jirikanda). * **Fixed** – Add missing keys for Swedish translation (by @karl-sjogren). * **Project** – Use `TypeNameAssemblyFormatHandling` in tests with .NET 6 (by @viktor-vintertass). #### Hangfire.AspNetCore * **Fixed** – `InvalidOperationException`: The request reached the end of the pipeline without executing the endpoint. Commits viewable in [compare view](HangfireIO/Hangfire@v1.8.22...v1.8.23). </details> Pinned [Hangfire.Core](https://github.com/HangfireIO/Hangfire) at 1.8.23. <details> <summary>Release notes</summary> _Sourced from [Hangfire.Core's releases](https://github.com/HangfireIO/Hangfire/releases)._ ## 1.8.23 ### Release Notes #### Hangfire.Core * **Changed** – Use stable sorting algorithm for background job filters again (by @jirikanda). * **Fixed** – Custom `AutomaticRetryAttribute` is ignored under certain conditions regression from 1.8.14 (by @jirikanda). * **Fixed** – Add missing keys for Swedish translation (by @karl-sjogren). * **Project** – Use `TypeNameAssemblyFormatHandling` in tests with .NET 6 (by @viktor-vintertass). #### Hangfire.AspNetCore * **Fixed** – `InvalidOperationException`: The request reached the end of the pipeline without executing the endpoint. Commits viewable in [compare view](HangfireIO/Hangfire@v1.8.22...v1.8.23). </details> Pinned [Hangfire.PostgreSql](https://github.com/frankhommers/Hangfire.PostgreSql) at 1.21.1. <details> <summary>Release notes</summary> _Sourced from [Hangfire.PostgreSql's releases](https://github.com/frankhommers/Hangfire.PostgreSql/releases)._ ## 1.21.1 ## What's Changed * Use PrivateAssets for Dapper.Aot package reference by @latop2604 in hangfire-postgres/Hangfire.PostgreSql#422 **Full Changelog**: hangfire-postgres/Hangfire.PostgreSql@1.21.0...1.21.1 ## 1.21.0 ## What's Changed * Fix duplicate key error in FetchedJobs when job has multiple queue entries by @nicolaj-hartmann in hangfire-postgres/Hangfire.PostgreSql#419 * Fix LISTEN/NOTIFY connection self-healing by @nicolaj-hartmann in hangfire-postgres/Hangfire.PostgreSql#420 * Dapper.AOT by @latop2604 in hangfire-postgres/Hangfire.PostgreSql#417 ## New Contributors * @nicolaj-hartmann made their first contribution in hangfire-postgres/Hangfire.PostgreSql#419 * @latop2604 made their first contribution in hangfire-postgres/Hangfire.PostgreSql#417 **Full Changelog**: hangfire-postgres/Hangfire.PostgreSql@1.20.13...1.21.0 Commits viewable in [compare view](hangfire-postgres/Hangfire.PostgreSql@1.20.13...1.21.1). </details> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore <dependency name> major version` will close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself) - `@dependabot ignore <dependency name> minor version` will close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself) - `@dependabot ignore <dependency name>` will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself) - `@dependabot unignore <dependency name>` will remove all of the ignore conditions of the specified dependency - `@dependabot unignore <dependency name> <ignore condition>` will remove the ignore condition of the specified dependency and ignore conditions </details> --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: James Gunn <james@gunn.io>
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Summary
When
EnableLongPollingis enabled, the LISTEN connection could die from network issues without recovery, causing workers to stop processing jobs while the server heartbeat continued.This adds automatic reconnection when the LISTEN connection fails.
Changes
Test
Added test that kills LISTEN connection via
pg_terminate_backendand verifies worker continues processing.Fixes #410