Download Service Trace Viewer Tool

The Windows Communication Foundation (WCF) Service Trace Viewer tool helps you correlate diagnostic traces produced by WCF listeners to locate the root cause of an error. The tool gives you a way to easily view, group, and filter traces so that you can diagnose, repair and verify issues with WCF services. For more information about using this tool, see Service Trace Viewer Tool (SvcTraceViewer.exe).

Here, we load client traces only for clarity, but service traces (request message received and response message sent) appear in the same activity if they are also loaded in the tool and propagateActivity was set to true. This is shown in a later illustration.

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Once the message is formed, we transfer to a Process Action activity. If propagateActivity is set to true on both the client and service, this activity has the same id as the one defined in the client, and described previously. From this stage we start to benefit from direct correlation across endpoints, because all traces emitted in WCF that are related to the request are in that same activity, including the response message processing.

The following screenshot shows the activities for both the client and service, and highlights the Process Action Add activity across processes (orange). Arrows relate the request and response messages sent and received by the client and service. The traces of Process Action are separated across processes in the graph, but shown as part of the same activity in the upper-right panel. In this panel, we can see client traces for sent messages followed by service traces for received and processed messages.

In the following error scenario, error and warning traces at the service and client are related. An exception is first thrown in user code on the service (right-most green activity that includes a warning trace for the exception "The service cannot process this request in user code."). When the response is sent to the client, a warning trace is again emitted to denote the fault message (left pink activity). The client then closes its WCF client (yellow activity on the lower-left side), which aborts the connection to the service. The service throws an error (longest pink activity on the right).

On the upper right panel, you can examine traces for the activity you selected on the left. You can then examine red or yellow traces in that panel and see how they are correlated. In the preceding graph, we see warning traces both for the client and service in the same Process Action activity.

Windows Communication Foundation (WCF) Service Trace Viewer Tool helps you analyze diagnostic traces that are generated by WCF. Service Trace Viewer provides a way to easily merge, view, and filter trace messages in the log so that you can diagnose, repair, and verify WCF service issues.

Press SHIFT while clicking multiple trace files to select and open them simultaneously. Service Trace Viewer merges the content of all files and presents one view. For example, you can open trace files of both client and service. This is useful when you have enabled message logging and activity propagation in configuration. In this way, you can examine message exchange between client and service. You can also drag multiple files into the viewer, or use the Project tab. See the Managing Project section for more details.

It is not recommended that you load a trace log file bigger than 200MB. If you attempt to load a file larger than this limit, the loading process may take a long time, depending on your computer resource. The Service Trace Viewer tool may not be responsive for a long time, or it may exhaust your machine's memory. It is recommended that you configure partial loading to avoid this. For more information on how to do this, see "Loading Large Trace Files" section.

When you open a file that does not contain activity traces, the viewer attempts to convert the file. You must specify the name and location of the file that will contain the converted trace data. Once the data has been converted, the viewer displays the content of the new file.

The viewer supports projects to facilitate viewing multiple trace files. For example, if you have a client trace file and a service trace file, you can add them to a project. Then, every time you open the project, all the trace files in the project are loaded simultaneously.

The viewer hides unnecessary detail in the activity graph by collapsing activities. In a collapsed activity, individual traces are not displayed. Only transfers trace appear. If you want to view all traces in an activity, expand the activity vertically by clicking the expand symbol of the activity in the header of the graph.

You can select which process or thread to be displayed in the graph from this drop-down list. For example, if you have the trace files of two clients (A and B) and one service opened, and you only want to display the service and client A in the graph, you can deselect client B from the list.

The pre-defined filter of the viewer can be used to selectively filter parts of the WCF traces. By default, it is set to allow all infrastructure traces to pass through. The settings of this filter are defined in the Filter Options sub-menu under View menu.

If you are familiar with the XML Path Language (XPath), you can use it to construct custom filters to search the trace data for any XML element of interest. The filters are accessible through the filter toolbar.

When you open a very large trace file in the Service Trace Viewer, system performance can be negatively impacted. The loading speed and the response time after loading can be slow. Actual speed differs from time to time, depending on your hardware configuration. In most PCs, loading a trace file larger than 200M has a severe performance impact. For traces files larger than 1G, the tool may use up all available memory, or stop responding for a very long time.

In order to avoid the slow loading and response time in analyzing large trace files, the Service Trace Viewer provides a feature called "Partial Loading", which only loads a small part of the trace at a time. For example, you may have a trace file over 1GB, running for several days on the server. When some errors have occurred and you want to analyze the trace, it is not necessary to open the entire trace file. Instead, you can load the traces within a certain period of time when the error might have occurred. Because the scope is smaller, the Service Trace Viewer tool can load the file faster and you can identify the errors using a smaller set of data.

Because traces may not be distributed evenly in the time span, the length of the time period you specify in the Partial Loading toolbar may not be proportional to the loading size shown. The actual loading size can be smaller than the Estimated Size in the partial loading dialog.

If you do not have permission to write to the registry, you get the following error message "The Microsoft Service Trace Viewer was not registered to the system" when you use the "svctraceviewer /register" command to register the tool. If this occurs, you should log in using an account that has write access to the registry.

If you open a trace log created using an Arabic operating system, you may notice that the time filter does not work. For example, year 2005 corresponds to year 1427 in Arabic calendar. However, the time range supported by the Service Trace Viewer tool filter does not support a date earlier than 1752. This can imply that you are not able to select a correct date in the filter. To resolve this problem, you can create a custom filter (View/Custom Filters) using an XPath expression to include a specific time range.

In CUCM, the RTMT application is used to gather traces for most types of issues. Every major and minor version of CUCM has an associated version of the RTMT application. If, on your PC, you do not see a Unified RTMT program group under Start > Programs > Cisco, or if the RTMT version does not match your CUCM cluster, you must install the RTMT tool for your CUCM version before you move forward.

If you are familiar with earlier versions of CUCM, this version differs in that the Cisco CallManager traces are a single set of SDL* traces, not a set of SDL* traces and a set of ccm* traces. This is because, in CUCM 9.X and later, traces are interwoven into a single set of files which makes analysis easier. The same is true for the Cisco CTI Manager service. Instead of both the SDL* traces and cti* traces, all of the data is in the SDL* traces for that service.

The Cisco CallManager/CTI Manager traces related to the specific call can be analyzed by the Collaboration Solutions Analyzer tool (ladder diagram/annotations/filtered logs/diagnostic signatures). Check the documentation on how to use the tool:

Playwright Trace Viewer is a GUI tool that helps you explore recorded Playwright traces after the script has ran. Traces are a great way for debugging your tests when they fail on CI. You can open traces locally or in your browser on trace.playwright.dev.

The tool available on github( -tracerviewer) should help. It is a Java swing application and should work on Mac as long as you have Java 8 installed.

try running just the .jar file on a command prompt equivalent of Mac, like 'java -jar pega-tracerviewer-3.1.jar'

If you have a trace ID in a log file, you can jump directly to it. Otherwise, you can query based on attributes such as service, operation name, tags and duration.Some interesting data will be summarized for you, such as the percentage of time spent in a service, and whether or not operations failed.

The Zipkin UI also presents a Dependency diagram showing how many traced requests went through each application. This can be helpful for identifying aggregate behavior including error paths or calls to deprecated services.

The trace viewer allows you to identify performance problems in your model, thentake steps to resolve them. For example, at a high level, you can identifywhether input or model training is taking the majority of the time. Drillingdown, you can identify which ops take the longest to execute. Note that thetrace viewer is limited to 1 million events per device. e24fc04721