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34 changes: 34 additions & 0 deletions
34
Microsoft.Azure.Cosmos/src/Diagnostics/AddressResolutionStatistics.cs
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//------------------------------------------------------------ | ||
// Copyright (c) Microsoft Corporation. All rights reserved. | ||
//------------------------------------------------------------ | ||
namespace Microsoft.Azure.Cosmos.Diagnostics | ||
{ | ||
using System; | ||
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internal sealed class AddressResolutionStatistics : CosmosDiagnosticsInternal | ||
{ | ||
public AddressResolutionStatistics( | ||
DateTime startTime, | ||
DateTime endTime, | ||
string targetEndpoint) | ||
{ | ||
this.StartTime = startTime; | ||
this.EndTime = endTime; | ||
this.TargetEndpoint = targetEndpoint ?? throw new ArgumentNullException(nameof(startTime)); | ||
} | ||
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public DateTime StartTime { get; } | ||
public DateTime? EndTime { get; set; } | ||
public string TargetEndpoint { get; } | ||
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public override void Accept(CosmosDiagnosticsInternalVisitor visitor) | ||
{ | ||
visitor.Visit(this); | ||
} | ||
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public override TResult Accept<TResult>(CosmosDiagnosticsInternalVisitor<TResult> visitor) | ||
{ | ||
return visitor.Visit(this); | ||
} | ||
} | ||
} |
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164 changes: 164 additions & 0 deletions
164
Microsoft.Azure.Cosmos/src/Diagnostics/CosmosClientSideRequestStatistics.cs
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//------------------------------------------------------------ | ||
// Copyright (c) Microsoft Corporation. All rights reserved. | ||
//------------------------------------------------------------ | ||
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namespace Microsoft.Azure.Cosmos | ||
{ | ||
using System; | ||
using System.Collections.Generic; | ||
using System.Globalization; | ||
using System.IO; | ||
using System.Text; | ||
using Microsoft.Azure.Cosmos.Diagnostics; | ||
using Microsoft.Azure.Documents; | ||
using Newtonsoft.Json; | ||
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internal sealed class CosmosClientSideRequestStatistics : CosmosDiagnosticsInternal, IClientSideRequestStatistics | ||
{ | ||
private readonly object lockObject = new object(); | ||
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public CosmosClientSideRequestStatistics(CosmosDiagnosticsContext diagnosticsContext = null) | ||
{ | ||
this.RequestStartTimeUtc = DateTime.UtcNow; | ||
this.RequestEndTimeUtc = null; | ||
this.EndpointToAddressResolutionStatistics = new Dictionary<string, AddressResolutionStatistics>(); | ||
this.ContactedReplicas = new List<Uri>(); | ||
this.FailedReplicas = new HashSet<Uri>(); | ||
this.RegionsContacted = new HashSet<Uri>(); | ||
this.DiagnosticsContext = diagnosticsContext ?? new CosmosDiagnosticsContextCore(); | ||
this.DiagnosticsContext.AddDiagnosticsInternal(this); | ||
} | ||
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private DateTime RequestStartTimeUtc { get; } | ||
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private DateTime? RequestEndTimeUtc { get; set; } | ||
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private Dictionary<string, AddressResolutionStatistics> EndpointToAddressResolutionStatistics { get; } | ||
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public List<Uri> ContactedReplicas { get; set; } | ||
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public HashSet<Uri> FailedReplicas { get; } | ||
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public HashSet<Uri> RegionsContacted { get; } | ||
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public TimeSpan RequestLatency | ||
{ | ||
get | ||
{ | ||
if (this.RequestEndTimeUtc.HasValue) | ||
{ | ||
return this.RequestEndTimeUtc.Value - this.RequestStartTimeUtc; | ||
} | ||
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return TimeSpan.MaxValue; | ||
} | ||
} | ||
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public bool IsCpuOverloaded { get; private set; } = false; | ||
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public CosmosDiagnosticsContext DiagnosticsContext { get; } | ||
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public void RecordRequest(DocumentServiceRequest request) | ||
{ | ||
} | ||
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public void RecordResponse(DocumentServiceRequest request, StoreResult storeResult) | ||
{ | ||
DateTime responseTime = DateTime.UtcNow; | ||
Uri locationEndpoint = request.RequestContext.LocationEndpointToRoute; | ||
StoreResponseStatistics responseStatistics = new StoreResponseStatistics( | ||
responseTime, | ||
storeResult, | ||
request.ResourceType, | ||
request.OperationType, | ||
locationEndpoint); | ||
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if (storeResult?.IsClientCpuOverloaded ?? false) | ||
{ | ||
this.IsCpuOverloaded = true; | ||
} | ||
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lock (this.lockObject) | ||
{ | ||
if (!this.RequestEndTimeUtc.HasValue || responseTime > this.RequestEndTimeUtc) | ||
{ | ||
this.RequestEndTimeUtc = responseTime; | ||
} | ||
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if (locationEndpoint != null) | ||
{ | ||
this.RegionsContacted.Add(locationEndpoint); | ||
} | ||
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this.DiagnosticsContext.AddDiagnosticsInternal(responseStatistics); | ||
} | ||
} | ||
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public string RecordAddressResolutionStart(Uri targetEndpoint) | ||
{ | ||
string identifier = Guid.NewGuid().ToString(); | ||
AddressResolutionStatistics resolutionStats = new AddressResolutionStatistics( | ||
startTime: DateTime.UtcNow, | ||
endTime: DateTime.MaxValue, | ||
targetEndpoint: targetEndpoint == null ? "<NULL>" : targetEndpoint.ToString()); | ||
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lock (this.lockObject) | ||
{ | ||
this.EndpointToAddressResolutionStatistics.Add(identifier, resolutionStats); | ||
this.DiagnosticsContext.AddDiagnosticsInternal(resolutionStats); | ||
} | ||
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return identifier; | ||
} | ||
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public void RecordAddressResolutionEnd(string identifier) | ||
{ | ||
if (string.IsNullOrEmpty(identifier)) | ||
{ | ||
return; | ||
} | ||
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DateTime responseTime = DateTime.UtcNow; | ||
lock (this.lockObject) | ||
{ | ||
if (!this.EndpointToAddressResolutionStatistics.ContainsKey(identifier)) | ||
{ | ||
throw new ArgumentException("Identifier {0} does not exist. Please call start before calling end.", identifier); | ||
} | ||
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if (!this.RequestEndTimeUtc.HasValue || responseTime > this.RequestEndTimeUtc) | ||
{ | ||
this.RequestEndTimeUtc = responseTime; | ||
} | ||
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this.EndpointToAddressResolutionStatistics[identifier].EndTime = responseTime; | ||
} | ||
} | ||
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public override string ToString() | ||
{ | ||
// This is required for the older IClientSideRequestStatistics | ||
// Capture the entire diagnostic context in the toString to avoid losing any information | ||
// for any APIs using the older interface. | ||
return this.DiagnosticsContext.ToString(); | ||
} | ||
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public void AppendToBuilder(StringBuilder stringBuilder) | ||
{ | ||
// This is required for the older IClientSideRequestStatistics | ||
// Capture the entire diagnostic context in the toString to avoid losing any information | ||
// for any APIs using the older interface. | ||
stringBuilder.Append(this.DiagnosticsContext.ToString()); | ||
} | ||
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public override void Accept(CosmosDiagnosticsInternalVisitor visitor) | ||
{ | ||
visitor.Visit(this); | ||
} | ||
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public override TResult Accept<TResult>(CosmosDiagnosticsInternalVisitor<TResult> visitor) | ||
{ | ||
return visitor.Visit(this); | ||
} | ||
} | ||
} |
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