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feat: implement log reopening on SIGUSR1 signal

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This commit is contained in:
Joseph Doherty
2026-02-23 00:46:09 -05:00
parent cf75077bc4
commit 345e7ca15c
2 changed files with 12 additions and 2 deletions
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6
src/NATS.Server/NatsServer.cs
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@@ -61,6 +61,7 @@ public sealed class NatsServer : IMessageRouter, ISubListAccess, IDisposable
public string ServerNKey { get; }
public bool IsShuttingDown => Volatile.Read(ref _shutdown) != 0;
public bool IsLameDuckMode => Volatile.Read(ref _lameDuck) != 0;
public Action? ReOpenLogFile { get; set; }
public IEnumerable<NatsClient> GetClients() => _clients.Values;
public Task WaitForReadyAsync() => _listeningStarted.Task;
@@ -192,7 +193,7 @@ public sealed class NatsServer : IMessageRouter, ISubListAccess, IDisposable
/// <summary>
/// Registers Unix signal handlers.
/// SIGTERM → shutdown, SIGUSR2 → lame duck, SIGUSR1 → log reopen (stub), SIGHUP → reload (stub).
/// SIGTERM → shutdown, SIGUSR2 → lame duck, SIGUSR1 → log reopen, SIGHUP → reload (stub).
/// </summary>
public void HandleSignals()
{
@@ -222,7 +223,8 @@ public sealed class NatsServer : IMessageRouter, ISubListAccess, IDisposable
_signalRegistrations.Add(PosixSignalRegistration.Create((PosixSignal)10, ctx =>
{
ctx.Cancel = true;
_logger.LogWarning("Trapped SIGUSR1 signal — log reopen not yet supported");
_logger.LogInformation("Trapped SIGUSR1 signal — reopening log file");
ReOpenLogFile?.Invoke();
}));
_signalRegistrations.Add(PosixSignalRegistration.Create((PosixSignal)12, ctx =>