search

TechnitiumSoftware / DnsServer

Technitium DNS Server
https://technitium.com/dns/
GNU General Public License v3.0
4.51k stars 431 forks source link

QUIC Connection Refused after a day #1076

Closed chmichael closed 1 month ago

chmichael commented 1 month ago

Hello, I am getting CONNECTION_REFUSED after a day running only with QUIC protocol. If i switch to UDP there are no problems. Dropped connections are 0 while Server failures seems normal. Restarting DNS Server fixes the problem.

Here's the log of the my local dns proxy results:

2024/10/16 03:26:37.902365 ERROR exchange failed prefix=dnsproxy upstream=quic://dnsserver.mydomain.com:853 question=";www.youtube.com.\tIN\t HTTPS" duration=63.5042ms err="getting conn: dialing quic connection to quic://dnsserver.mydomain.com:853: CONNECTION_REFUSED (remote)"
2024/10/16 03:26:53.603980 ERROR exchange failed prefix=dnsproxy upstream=quic://dnsserver.mydomain.com:853 question=";data.tradingview.com.\tIN\t HTTPS" duration=117.8509ms err="getting conn: dialing quic connection to quic://dnsserver.mydomain.com:853: CONNECTION_REFUSED (remote)"
2024/10/16 03:26:53.724808 ERROR exchange failed prefix=dnsproxy upstream=quic://dnsserver.mydomain.com:853 question=";data.tradingview.com.\tIN\t HTTPS" duration=225.4918ms err="getting conn: dialing quic connection to quic://dnsserver.mydomain.com:853: CONNECTION_REFUSED (remote)"

Error Logs from Technitium:

[2024-10-15 07:25:25 UTC] DNS Server failed to resolve the request '1667503734.rsc.cdn77.org. A IN' using forwarders: cloudflare-dns.com ([2606:4700:4700::1111]), cloudflare-dns.com ([2606:4700:4700::1001]), dns.google (8.8.8.8), dns.google (8.8.4.4).

System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
   at System.IO.Stream.ReadAtLeastAsyncCore(Memory`1 buffer, Int32 minimumBytes, Boolean throwOnEndOfStream, CancellationToken cancellationToken)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at TechnitiumLibrary.IO.StreamExtensions.ReadExactlyAsync(Stream s, Int32 count, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.IO\StreamExtensions.cs:line 66
   at TechnitiumLibrary.Net.Dns.DnsDatagram.ReadUInt16NetworkOrderAsync(Stream s, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsDatagram.cs:line 361
   at TechnitiumLibrary.Net.Dns.DnsDatagram.ReadFromTcpAsync(Stream stream, MemoryStream sharedBuffer, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsDatagram.cs:line 348
   at TechnitiumLibrary.TaskExtensions.TimeoutAsync[T](Func`2 func, Int32 timeout, CancellationToken cancellationToken)
   at TechnitiumLibrary.TaskExtensions.TimeoutAsync[T](Func`2 func, Int32 timeout, CancellationToken cancellationToken)
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.ReadDnsDatagramAsync(Stream tcpStream) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 206
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
   at DnsServerCore.Dns.DnsServer.RecursiveResolverBackgroundTaskAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, Boolean advancedForwardingClientSubnet, IReadOnlyList`1 conditionalForwarders, Boolean dnssecValidation, Boolean cachePrefetchOperation, Boolean cacheRefreshOperation, Boolean skipDnsAppAuthoritativeRequestHandlers, TaskCompletionSource`1 taskCompletionSource) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3127
   at TechnitiumLibrary.Net.Dns.ClientConnection.TcpClientConnection.QueryAsync(DnsDatagram request, Int32 timeout, Int32 retries, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\ClientConnection\TcpClientConnection.cs:line 327
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4502
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4718
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass93_0.<<InternalResolveAsync>g__DoResolveAsync|1>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4419
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4829
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalResolveAsync(DnsDatagram request, Func`3 getValidatedResponseAsync, Boolean doNotReorderNameServers, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4780
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalDnssecResolveAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4896
   at TechnitiumLibrary.Net.Dns.DnsClient.<>c__DisplayClass97_0.<<InternalCachedResolveQueryAsync>b__0>d.MoveNext() in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4995
--- End of stack trace from previous location ---
   at TechnitiumLibrary.Net.Dns.DnsClient.ResolveQueryAsync(DnsQuestionRecord question, Func`2 resolveAsync) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4254
   at TechnitiumLibrary.Net.Dns.DnsClient.InternalCachedResolveQueryAsync(DnsQuestionRecord question, CancellationToken cancellationToken) in Z:\Technitium\Projects\TechnitiumLibrary\TechnitiumLibrary.Net\Dns\DnsClient.cs:line 4977
   at DnsServerCore.Dns.DnsServer.DefaultRecursiveResolveAsync(DnsQuestionRecord question, NetworkAddress eDnsClientSubnet, IDnsCache dnsCache, Boolean dnssecValidation, Boolean skipDnsAppAuthoritativeRequestHandlers, CancellationToken cancellationToken) in Z:\Technitium\Projects\DnsServer\DnsServerCore\Dns\DnsServer.cs:line 3343
ShreyasZare commented 1 month ago

Thanks for the feedback. I am not sure which specific local DNS proxy you are using but assuming that the QUIC upstream is your Technitium DNS server instance. Connection refused error just means that the port is not open on the server. So, that will need some debugging to see if the port is really open or if the dns process is running.

The other error log is unrelated to this. The error seems to indicate that the TCP/TLS requests was closed mid session so it failed to read the complete response. Not sure about the reasons as it could be anything including network issues.

chmichael commented 1 month ago

Ok i'll keep you informed but it's weird it does it on QUIC connections and not UDP.

@ShreyasZare btw, it's Adguard's dns proxy https://github.com/AdguardTeam/dnsproxy configured to use technitium's QUIC upstream.

polarathene commented 1 month ago

Probably unrelated, but what does ulimit -Sn report in the container for you? Is it a number above 1024? If it's not what is ulimit -Hn?

chmichael commented 1 month ago

Now it's working for more than 1 day so i'm still investigating ...

@polarathene ulimit -Sn = 1024 and ulimit -Hn = 1048576

polarathene commented 1 month ago

ulimit -Sn = 1024

This is fine 👍

If it is related to file descriptors, @ShreyasZare could raise the soft limit at runtime provided there is nothing that would call select() syscall on Linux (that is typically limited to 1024, and causes failures beyond that). (EDIT: As shown below, this already appears to be done by dotnet like Go does)

It seems that was a bit naive of me, similar to Go dotnet is implicitly raising the soft limit to the hard limit on Linux: https://github.com/dotnet/runtime/pull/82429 (in early 2023 this was not the case)

# On my environment soft and hard limits for Docker containers presently default to 1048576
$ docker run --rm -itd--name dns --ulimit=nofile=1024:524288 technitium/dns-server
$ docker exec -it dns bash

# These are now correct from explicit `--ulimit`:
$ ulimit -Sn
1024
$ ulimit -Hn
524288

# The DNS service is running as PID 1, we can see soft limit for `NOFILE` was raised to hard limit:
# NOTE: Instead of prlimit command you can also use `cat /proc/1/limits`
$ prlimit -p 1

RESOURCE   DESCRIPTION                             SOFT      HARD UNITS
AS         address space limit                unlimited unlimited bytes
CORE       max core file size                         0 unlimited bytes
CPU        CPU time                           unlimited unlimited seconds
DATA       max data size                      unlimited unlimited bytes
FSIZE      max file size                      unlimited unlimited bytes
LOCKS      max number of file locks held      unlimited unlimited locks
MEMLOCK    max locked-in-memory address space unlimited unlimited bytes
MSGQUEUE   max bytes in POSIX mqueues            819200    819200 bytes
NICE       max nice prio allowed to raise             0         0
NOFILE     max number of open files              524288    524288 files
NPROC      max number of processes            unlimited unlimited processes
RSS        max resident set size              unlimited unlimited bytes
RTPRIO     max real-time priority                     0         0
RTTIME     timeout for real-time tasks        unlimited unlimited microsecs
SIGPENDING max number of pending signals          62367     62367 signals
STACK      max stack size                       8388608 unlimited bytes

There is the System.Net.Sockets module with Select() method which calls the platform specific SocketPal method:

I don't see any direct calls to such from this project nor in the libmsquic library. so unless that's being done elsewhere implicitly perhaps I'm off base here 😅

@chmichael when you've had it running for a reasonable amount of time under similar load conditions, you could probably try this in the container:

ls -1 /proc/1/fd | wc -l

That will show us how many FDs are open for PID 1 (which should be the DNS service in the Docker container).

Each connection would typically open an FD, but these should be cleaned up rather than accumulating. If the number isn't too large under the conditions that would cause the failure you're experiencing then this whole theory of mine can be disregarded 😅

You'd need to hit that 1048576 hard limit for file descriptors for this to trigger a crash, or if select() syscall is used somewhere then FDs would need to reach 1024+.

chmichael commented 1 month ago

@polarathene Thanks

I've upgraded to v13.1 let's see how it goes.

chmichael commented 1 month ago

3 days without a problem (13.1) so i close this issue.

ShreyasZare commented 1 month ago

Thanks for the feedback.