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Hi SEQ Team, This morning we had a problem. From log can be seen as below. {"@t":"2017-12-25T01:00:20.8747699Z","@mt":" Seq stopped cleanly"} {"@t":"2017-12-25T01:00:05.3491070Z","@mt":" Stopping {AppCount} running apps","AppCount":13} {"@t":"2017-12-25T01:00:05.0416443Z","@mt":" Stopping broadcast channel","SourceContext":"Flare.Events.Broadcast.BroadcastChannel"} {"@t":"2017-12-25T01:00:05.0416443Z","@mt":" Stopping {Tasks} scheduled tasks","Tasks":11,"SourceContext":"Seq.Server.Tasks.TaskRunner"} {"@t":"2017-12-25T01:00:03.7126398Z","@mt":" Signalling for {Workers} background worker(s) to complete","Workers":3,"SourceContext":"Flare.Workers.WorkerPool"} {"@t":"2017-12-25T01:00:03.7126398Z","@mt":" Stopping HTTP listener"} {"@t":"2017-12-25T00:58:39.3548640Z","@mt":" Memory is overutilized, so cooling down segment {Segment}","Segment":"12/23/2017 12:00:00","SourceContext":"Flare.Events.Cache.SegmentCache"} {"@t":"2017-12-25T00:58:30.5771826Z","@mt":" Memory is overutilized, so cooling down segment {Segment}","Segment":"12/23/2017 09:00:00","SourceContext":"Flare.Events.Cache.SegmentCache"} {"@t":"2017-12-25T00:58:21.4577578Z","@mt":" Memory is overutilized, so cooling down segment {Segment}","Segment":"12/23/2017 06:00:00","SourceContext":"Flare.Events.Cache.SegmentCache"} {"@t":"2017-12-25T00:58:12.0509496Z","@mt":" Memory is overutilized, so cooling down segment {Segment}","Segment":"12/23/2017 03:00:00","SourceContext":"Flare.Events.Cache.SegmentCache"} Then our PSScheduledJob that is checking if SEQ is in running state (seq status) discovered that is not in running state. At 1:30AM tried to start the SEQ (SEQ start). But: {"@t":"2017-12-25T01:30:13.5089970Z","@mt":" Uncaught exception from worker {WorkDescription} ({WorkId})","@l":"Error","@x":"Autofac.Core.DependencyResolutionException: An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = AppRunner (ReflectionActivator), Services = [Seq.Server.Features.Runner.IAppRunner, Flare.Diagnostics.Reporting.IDiagnosticReporter], Lifetime = Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = OwnedByLifetimeScope ---> An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = QuinceDB (DelegateActivator), Services = [Quince.QuinceDB], Lifetime = Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = OwnedByLifetimeScope ---> An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = StorageSubsystem (DelegateActivator), Services = [Seq.Server.Storage.StorageSubsystem], Lifetime = Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = OwnedByLifetimeScope ---> Cannot access file, the file is locked or in use (See inner exception for details.) (See inner exception for details.) (See inner exception for details.) ---> Autofac.Core.DependencyResolutionException: An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = QuinceDB (DelegateActivator), Services = [Quince.QuinceDB], Lifetime = Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = OwnedByLifetimeScope ---> An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = StorageSubsystem (DelegateActivator), Services = [Seq.Server.Storage.StorageSubsystem], Lifetime = Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = OwnedByLifetimeScope ---> Cannot access file, the file is locked or in use (See inner exception for details.) (See inner exception for details.) ---> Autofac.Core.DependencyResolutionException: An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = StorageSubsystem (DelegateActivator), Services = [Seq.Server.Storage.StorageSubsystem], Lifetime = Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = OwnedByLifetimeScope ---> Cannot access file, the file is locked or in use (See inner exception for details.) ---> Microsoft.Isam.Esent.Interop.EsentFileAccessDeniedException: Cannot access file, the file is locked or in use\r\n at Microsoft.Isam.Esent.Interop.Api.Check(Int32 err)\r\n at Flare.Storage.Esent.Data.EsentDBSession..ctor(Instance instance, String path, Action notifyDisposed)\r\n at Flare.Storage.Esent.Data.EsentDB.BeginSession(Action notifyDisposed, String tag)\r\n at Flare.Storage.Esent.Migration.EventStoreMigrator.GetAppliedMigrations(EsentDB db)\r\n at Flare.Storage.Esent.Migration.EventStoreMigrator.Migrate(EsentDB db)\r\n at Flare.Storage.Esent.EsentStorageExtent.BeginSession(String tag)\r\n at Flare.Storage.Esent.EsentStorageExtent.<Get>d__15.MoveNext()\r\n at Flare.Events.EventStore.<Get>d__12.MoveNext()\r\n at System.Linq.Enumerable.<TakeIterator>d__24`1.MoveNext()\r\n at Flare.Events.EventStore..ctor(IStorageEngine[] storageEngines, String extentsPath, WorkerPool workerPool, MemoryThresholds memoryThresholds, BroadcastChannel broadcast)\r\n at Seq.Server.SeqServerModule.InitStorageSubsystem(IComponentContext c)\r\n at Autofac.Builder.RegistrationBuilder.<>c__DisplayClass0_0`1.<ForDelegate>b__0(IComponentContext c, IEnumerable`1 p)\r\n at Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance(IComponentContext context, IEnumerable`1 parameters)\r\n at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters)\r\n --- End of inner exception stack trace ---\r\n at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters)\r\n at Autofac.Core.Lifetime.LifetimeScope.GetOrCreateAndShare(Guid id, Func`1 creator)\r\n at Autofac.Core.Resolving.InstanceLookup.Execute()\r\n at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable`1 parameters)\r\n at Autofac.ResolutionExtensions.TryResolveService(IComponentContext context, Service service, IEnumerable`1 parameters, Object& instance)\r\n at Autofac.ResolutionExtensions.ResolveService(IComponentContext context, Service service, IEnumerable`1 parameters)\r\n at Autofac.ResolutionExtensions.Resolve[TService](IComponentContext context, IEnumerable`1 parameters)\r\n at Seq.Server.SeqServerModule.<>c.<Load>b__16_7(IComponentContext c)\r\n at Autofac.Builder.RegistrationBuilder.<>c__DisplayClass0_0`1.<ForDelegate>b__0(IComponentContext c, IEnumerable`1 p)\r\n at Autofac.Core.Activators.Delegate.DelegateActivator.ActivateInstance(IComponentContext context, IEnumerable`1 parameters)\r\n at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters)\r\n --- End of inner exception stack trace ---\r\n at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters)\r\n at Autofac.Core.Lifetime.LifetimeScope.GetOrCreateAndShare(Guid id, Func`1 creator)\r\n at Autofac.Core.Resolving.InstanceLookup.Execute()\r\n at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable`1 parameters)\r\n at Autofac.Core.Activators.Reflection.ConstructorParameterBinding.Instantiate()\r\n at Autofac.Core.Activators.Reflection.ReflectionActivator.ActivateInstance(IComponentContext context, IEnumerable`1 parameters)\r\n at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters)\r\n --- End of inner exception stack trace ---\r\n at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 parameters)\r\n at Autofac.Core.Lifetime.LifetimeScope.GetOrCreateAndShare(Guid id, Func`1 creator)\r\n at Autofac.Core.Resolving.InstanceLookup.Execute()\r\n at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance(ISharingLifetimeScope currentOperationScope, IComponentRegistration registration, IEnumerable`1 parameters)\r\n at Autofac.Core.Resolving.ResolveOperation.Execute(IComponentRegistration registration, IEnumerable`1 parameters)\r\n at Autofac.Features.LazyDependencies.LazyRegistrationSource.<>c__DisplayClass5_0`1.<CreateLazyRegistration>b__1()\r\n at System.Lazy`1.CreateValue()\r\n at System.Lazy`1.LazyInitValue()\r\n at Seq.Server.ServiceProcess.ServerService.<Start>b__9_0(CancellationToken cancel)\r\n at Flare.Workers.WorkerPool.<>c__DisplayClass4_0.<Run>b__0()","WorkDescription":"Start background processes","WorkId":"908e9827-90dd-446b-b9ef-cd5d09fd2b79","SourceContext":"Flare.Workers.WorkerPool"} {"@t":"2017-12-25T01:30:03.3546165Z","@mt":" Available storage engines in order of preference are {Engines}","Engines":["ESENT","LMDB"],"SourceContext":"Flare.Events.EventStore"} {"@t":"2017-12-25T01:30:03.3546165Z","@mt":" Opening event store at {ExtentsPath}","ExtentsPath":"F:\\SEQ\\Extents","SourceContext":"Flare.Events.EventStore"} {"@t":"2017-12-25T01:30:03.3233496Z","@mt":" ESENT sparse file support is available on this system"} {"@t":"2017-12-25T01:30:03.0889876Z","@mt":" Opening document store {DatabasePath}","DatabasePath":"F:\\SEQ\\Documents\\default.quince","InstanceName":"Quince","SourceContext":"Quince.QuinceDB"} {"@t":"2017-12-25T01:30:03.0577566Z","@mt":" Seq listening on {ListenUris}","ListenUris":["https://seq.somename.com:5341/"]} {"@t":"2017-12-25T01:30:02.4483350Z","@mt":" Seq {SeqVersion} {ProcessWordSize}-bit running on .NET {DotNetVersion} and OS {OSCaption} ({OSVersion}) {OSWordSize}-bit","SeqVersion":"4.1.17","ProcessWordSize":64,"DotNetVersion":"4.0.30319.42000","OSCaption":"Microsoft Windows Server 2012 R2 Datacenter","OSVersion":"6.3.9600","OSWordSize":64,"SourceContext":"Seq.Server.Features.Diagnostics.EnvironmentInformationWriter"} Then during working hours when manually checking SEQ status surprisingly: The Seq service is installed and running. SEQ.exe process allocated only 20 MB of RAM when normally 21GB. Trying to reach SEQ endpoint then request returned: Error Seq in unavailable. Failed to initialize storage: Cannot access file, the file is locked or in use. The whole problem showed up when no additional workload or maintenance has been performed. The problem has been solved by manual Stop-Process SEQ -Force then SEQ start. Looking forward to a suggestion.
Posted by Igor about a year ago
Hi, I have a python project, which uses log and configures it with help of logging.conf file. I want to add seq log as additional handler. When I use sample from documentation I don't see messages in Seq browser. Same seq sample, tested on python test (without config file, without other handlers) works. Please, could you add sample to documentation or explain me what a problem in my code? logging.config.fileConfig('logging.conf') self.logger = logging.getLogger("root") seqlog.log_to_seq( server_url="http://", api_key="", level=logging.INFO, batch_size=1, auto_flush_timeout=10000, # milliseconds override_root_logger=True ) thank you, Igor.
Posted by Igor Ziselman about a year ago
We have 5 services running on the same machine using the same API key. Sometimes, after a deploy of one of them, the message don't arrive anymore of that one deployed service. To fix this, we have ot go to the settings, click deselect 'Require an API key', save changes, and reselect it and save changes. The Seq runs on another server.
Posted by Jan Kinable about a year ago
Just wanted to let you know. Getting this error in the new version: {"@t":"2017-12-06T13:52:11.3298151Z","@mt":"Error serving {RequestUrl} (token: {ErrorToken})","@l":"Error","@x":"System.IO.FileNotFoundException: Could not load file or assembly 'Seq.Api, Version=4.2.244.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.\r\nFile name: 'Seq.Api, Version=4.2.244.0, Culture=neutral, PublicKeyToken=null'\r\n at Seq.Server.Web.Api.RootModule.GetRootEntity()\r\n at Nancy.Routing.Route.<>c__DisplayClass4.<Wrap>b__3(Object parameters, CancellationToken context)\r\n\r\nWRN: Assembly binding logging is turned OFF.\r\nTo enable assembly bind failure logging, set the registry value [HKLM\\Software\\Microsoft\\Fusion!EnableLog] (DWORD) to 1.\r\nNote: There is some performance penalty associated with assembly bind failure logging.\r\nTo turn this feature off, remove the registry value [HKLM\\Software\\Microsoft\\Fusion!EnableLog].\r\n","RequestUrl":"http://localhost:5341/api","ErrorToken":"90a96918439248679e921042db308344","RequestId":"e1ef0f5e-7896-4200-9083-a23644b4bf73"}
Posted by Erling Brandvik about a year ago
Nick, As an administrator for an enterprise SEQ installation, I am one of a few API key creators. I find myself being a bottleneck for the process and have created a utility to help me quickly create dozens of keys. I would like to see a feature where users can self provision a key (like an API Gateway product does for consumers). Or allow for a power user role that can provision new keys but cannot change system settings.
Posted by PJ Khatri about a year ago
Is there a way to plot a JSON array that is embedded in a log line in Seq? For example, an array of temperatures is output on a line in the log. temperatures [0, 0.25, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2, 2.25, 2.5, 2.75, 3, 3.25, 3.5, 3.75, 4, 4.25, 4.5, 4.75, 5, 5.25, 5.5, 5.75, 6, 6.25, 6.5, 6.75, 7, 7.25, 7.5, 7.75, 8, 8.25, 8.5, 8.75, 9, 9.25, 9.5, 9.75, 10, 10.25, 10.5, 10.75, 11, 11.25, 11.5, 11.75, 12, 12.25, 12.5, 12.75, 13, 13.25, 13.5, 13.75, 14, 14.25, 14.5, 14.75, 15, 15.25, 15.5, 15.75, 16, 16.25, 16.5, 16.75, 17, 17.25, 17.5, 17.75, 18, 18.25, 18.5, 18.75, 19, 19.25, 19.5, 19.75, 20, 20.25, 20.5, 20.75, 21, 21.25, 21.5, 21.75, 22, 22.25, 22.5, 22.75, 23, 23.25, 23.5, 23.75, 24, 24.25, 24.5, 24.75, 25, 25.25, 25.5, 25.75, 26, 26.25, 26.5, 26.75, 27, 27.25, 27.5, 27.75, 28, 28.25, 28.5, 28.75, 29, 29.25, 29.5, 29.75, 30, 30.25, 30.5, 30.75, 31, 31.25, 31.5, 31.75, 32, 32.25, 32.5, 32.75, 33, 33.25, 33.5, 33.75, 34, 34.25, 34.5, 34.75, 35, 35.25, 35.5, 35.75, 36, 36.25, 36.5, 36.75, 37, 37.25, 37.5, 37.75, 38, 38.25, 38.5, 38.75, 39, 39.25, 39.5, 39.75, 40, 40.25, 40.5, 40.75, 41, 41.25, 41.5, 41.75, 42, 42.25, 42.5, 42.75, 43, 43.25, 43.5, 43.75, 44, 44.25, 44.5, 44.75]
Posted by Tom about a year ago
I'm trying to optimize my messages to allow our seq server to keep more data in RAM. I'd like to understand, if I send 1 million messages like "this is some log of {foo}", does seq keep the entire event including the text in RAM, or does it store only the template once and keep the id and the variable contents 1 million times? In other words, in order to allow more messages to be kept in RAM, should I worry about the size of the template, or only the amount of data in the variables sent along with them?
Posted by Natan Vivo about a year ago
Hi, I test Seq for product (.NET) and add it (via nlog). And now, profiler dotTrace shows that nlog-seq takes ~ 67% from all times for our standard flow. Could you, please, suggest correct pattern to use nlog-seq, which will not reduce performance? nlog configuration: <target name="seq" xsi:type="Seq" serverUrl="http://<address>:<port>" /> <logger name="*" minlevel="Trace" writeTo="seq" /> thank you, Igor.
Posted by Igor Mark Ziselman about a year ago
Seems, the sample contains 2 issues: seqlog.log_to_seq( server_url="http://my-seq-server:5431/", api_key="My API Key" <-- SHOULD BE COMMA level=logging.INFO, batch_size=10, auto_flush_timeout=10000 <-- SHOULD BE COMMA override_root_logger=True )
Posted by Igor Ziselman about a year ago
Hello and Happy Holidays :) I am checking out the great documentation found here regarding collections: http://docs.getseq.net/docs/query-syntax#collections Currently I am emitting a simple array of strings. Some of the elements are null, and I am curious if it is possible to count the elements within this array and if it is possible to count the number of non-null elements. Thank you for any assistance you can provide!
Posted by Michael DeMond about a year ago
I have errors in seq log file: 2017-11-08 12:33:55.446 +03:00 [Error] The event "event-1033792d268b08d51fd61c6a00000000" could not be sent to "Watch: Couriers_Moscow". Microsoft.Isam.Esent.Interop.EsentBadParentPageLinkException: Database corrupted в Microsoft.Isam.Esent.Interop.Api.Check(Int32 err) в Microsoft.Isam.Esent.Interop.Api.RetrieveUnicodeString(JET_SESID sesid, JET_TABLEID tableid, JET_COLUMNID columnid, RetrieveColumnGrbit grbit) в Microsoft.Isam.Esent.Interop.Api.RetrieveColumnAsString(JET_SESID sesid, JET_TABLEID tableid, JET_COLUMNID columnid, Encoding encoding, RetrieveColumnGrbit grbit) в Quince.Documents.DocumentStore.TryLoad[T](String id, T& document) в Quince.Documents.DocumentStore.Load[TDocument](String id) в Seq.Server.Features.Watches.WatchReactor.On(Event`1 evt) в Seq.Server.Features.Runner.AppHost.Send(StorageEvent storageEvent) Can I repair database somehow?
Posted by Gennady Vdovin about a year ago