[docs-traces] Added version info to the OTEL_TRACES_SAMPLER doc (#5492)

CodeBlanch · web-flow · commit 39d960e0e77a · 2024-03-29T12:01:21.000-07:00
diff --git a/docs/trace/customizing-the-sdk/README.md b/docs/trace/customizing-the-sdk/README.md
@@ -363,8 +363,8 @@ var tracerProvider = Sdk.CreateTracerProviderBuilder()
     .Build();
 ```
 
-It is also possible to configure the sampler by using the following
-environmental variables:
+If using `1.8.0-rc.1` or newer it is also possible to configure the sampler by
+using the following environmental variables:
 
 | Environment variable       | Description                                        |
 | -------------------------- | -------------------------------------------------- |
diff --git a/src/OpenTelemetry/Trace/TracerProviderSdk.cs b/src/OpenTelemetry/Trace/TracerProviderSdk.cs
@@ -407,12 +407,7 @@ protected override void Dispose(bool disposing)
 
     private static Sampler GetSampler(IConfiguration configuration, Sampler? stateSampler)
     {
-        Sampler? sampler = null;
-
-        if (stateSampler != null)
-        {
-            sampler = stateSampler;
-        }
+        var sampler = stateSampler;
 
         if (configuration.TryGetStringValue(TracesSamplerConfigKey, out var configValue))
         {

Original file line number	Diff line number	Diff line change
`@@ -407,12 +407,7 @@ protected override void Dispose(bool disposing)`
`407`	`407`
`408`	`408`	`private static Sampler GetSampler(IConfiguration configuration, Sampler? stateSampler)`
`409`	`409`	`{`
`410`		`- Sampler? sampler = null;`
`411`		`-`
`412`		`- if (stateSampler != null)`
`413`		`- {`
`414`		`- sampler = stateSampler;`
`415`		`- }`
	`410`	`+ var sampler = stateSampler;`
`416`	`411`
`417`	`412`	`if (configuration.TryGetStringValue(TracesSamplerConfigKey, out var configValue))`
`418`	`413`	`{`