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diff --git a/solr-8.3.1/contrib/jaegertracer-configurator/README.txt b/solr-8.3.1/contrib/jaegertracer-configurator/README.txt
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+Welcome to Apache Solr Jaeger Tracer Configurator
+========
+
+Apache Solr Jaeger Tracer Configurator (solr-jaegertracer) provides a way for you to expose Solr's tracing to Jaeger.
+
+# Setup Jaeger Tracer Configurator
+
+Note that all library of solr-jaegertracer must be included in the classpath of all nodes then Jaeger tracer can be setup in `solr.xml` like this:
+
+```
+<tracerConfig name="tracerConfig" class="org.apache.solr.jaeger.JaegerTracerConfigurator">
+  <str name="agentHost">localhost</str>
+  <int name="agentPort">5775</int>
+  <bool name="logSpans">true</bool>
+  <int name="flushInterval">1000</int>
+  <int name="maxQueueSize">10000</int>
+</tracerConfig>
+```
+
+List of parameters for JaegerTracerConfigurator include:
+|Parameter|Type|Required|Default|Description|
+|---------|----|--------|-------|-----------|
+|agentHost|string|Yes||The host of Jaeger backend|
+|agentPort|int|Yes||The port of Jaeger port|
+|logsSpans|bool|No|true|Whether the tracer should also log the spans|
+|flushInterval|int|No|5000|The tracer's flush interval (ms)|
+|maxQueueSize|int|No|10000|The tracer's maximum queue size|
+
+Other parameters which are not listed above can be configured using System Properties or Environment Variables. The full list are listed at [Jaeger-README](https://github.com/jaegertracing/jaeger-client-java/blob/master/jaeger-core/README.md).
+
+By default the sampling rate is 0.1%, this value can be changed by updating
+key `samplePercentage` of cluster properties. I.e: `/admin/collections?action=CLUSTERPROP&name=propertyName&samplePercentage=100`.
diff --git a/solr-8.3.1/contrib/jaegertracer-configurator/lib/jaeger-core-0.35.5.jar b/solr-8.3.1/contrib/jaegertracer-configurator/lib/jaeger-core-0.35.5.jar
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+++ b/solr-8.3.1/contrib/jaegertracer-configurator/lib/jaeger-core-0.35.5.jar
diff --git a/solr-8.3.1/contrib/jaegertracer-configurator/lib/jaeger-thrift-0.35.5.jar b/solr-8.3.1/contrib/jaegertracer-configurator/lib/jaeger-thrift-0.35.5.jar
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+++ b/solr-8.3.1/contrib/jaegertracer-configurator/lib/jaeger-thrift-0.35.5.jar
diff --git a/solr-8.3.1/contrib/jaegertracer-configurator/lib/libthrift-0.12.0.jar b/solr-8.3.1/contrib/jaegertracer-configurator/lib/libthrift-0.12.0.jar
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+++ b/solr-8.3.1/contrib/jaegertracer-configurator/lib/libthrift-0.12.0.jar