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When you report an issue with your modeling tool, Cameo Collaborator or Teamwork Cloud, always include related log files. Log files provide useful information that we need to investigate and troubleshoot your problem. Accessing log files
Open your modeling tool and in the main menu go to Help > About <modeling tool name>. In the Environment tab, click the link provided in the Log File line to open a log file. Or Go to <user.home>\<.modeling tool name>\<modeling tool version> directory and obtain <modeling tool name>.log file. Default path for Windows: C:\Users\<USERNAME>\AppData\Local\.<modeling tool name>\<modeling tool version number>
Go to <WebAppPlatform installation directory>/logs/webappplatform directory, and obtain the web-app.log and/or collaborator.log files. Default path for Linux: /opt/local/TeamworkCloud/WebAppPlatform/logs/webappplatform Default path for Windows: C:\Program Files\TeamworkCloud\WebAppPlatform\logs\webappplatform
Go to the <user.home>\.twcloud\<version number> directory and obtain the server.log file. Default path for Linux: /home/twcloud/.twcloud/<version> Go to the <user.home>\.authserver\<version number> directory and obtain the authserver.log file. Default path for Linux: /home/twcloud/.authserver/<version>
Go to <Cassandra installation directory>\logs directory and obtain the cassandra.log file. Default path for Linux: /var/log/cassandra
Default for Linux: Default for Windows:
Go to Alfresco Community installation directory, and obtain the alfresco.log, share.log and solr.log files. Go to <Alfresco Community installation directory>\tomcat\logs, and obtain the alfrescotomcat-stderr.log, alfrescotomcat-stdout.log and catalina.log files. Generating a log file If the performance of your modeling tool declines or it freezes, go to <modeling tool installation directory>\bin, and run the submit_issue.exe or submit_issue.sh file several times. It dumps threads into the log file of your modeling tool. Then you can access the log file as described above. Java crash log files If your modeling tool crashes (disappears), try searching for Java crash log files. They are stored in the running location of the modeling tool, e.g., the <modeling tool installation directory>/bin or <modeling tool installation directory> directory. The names of these log files start with "hs_err", e.g., hs_err_pid15693.log. If you find the Java crash log file, it indicates that Java was the reason of your modeling tool crash. |
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In order to troubleshoot this issue, we will need the program’s log files (located in the install directory of your tool). Additional information might be required about the Java environment on which our modeling tools are based. The information we need is called the “heapdump” and can be obtained using the Java VisualVM program. Please read and follow this procedure to install Java VisualVM and send this data to us (while the tool is running):
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To solve the problem, we need a little input from you. We need to examine the log files to troubleshoot the problem. The following list outlines how to submit log files: Generating a log file when the modeling tool freezes or performs slowly: 1. When a modeling tool runs slowly or freezes, open <modeling tool installation directory>\bin, and run submit_issue.exe several times. It dumps threads into the log file. 2. Click Help > About on the main menu of your modeling tool. In the open dialog, select the Environment tab and click the Log File link. The log file opens.* 3. Save the file and register an issue. Click Help > Report an Issue on the main menu of your modeling tool *If a modeling tool is inactive, as of version 17.0.4, log file is stored in the following location:
By using Java VisualVM: Modeling tools developed by No Magic Inc. are Java-based; thus, you can use the Java VisualVM program for performance issue examination. Data provided by VisualVM may help to explore issues accurately. The following steps outline how to obtain the data from VisualVM: Note. Please read the steps first to familiarize yourself with the whole procedure to gather more precise information. Step #8 should be started as soon as possible. On Windows OS:
On Mac OS:
On Linux OS:
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title | From time to time, we receive Out Of Memory exceptions. I suspect that these exceptions are caused by MagicDraw memory leaks. How would you suggest solving this problem? |
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While performing small ordinary tasks (not individual large operations, such as opening a large project or merging several large projects), modeling tool memory leaks may cause OutOfMemory exception errors. This is due to the cumulative effect of performing many small operations that normally do not cause any problems.
In order to analyze and fix the issue, more information is required. Please provide us with the following information:
- Can you reproduce the problem? If yes, what are the steps to reproduce it?
- If it is possible to reproduce it, send us the project file. We guarantee confidentiality, and shall sign a Non-disclosure Agreement at your request.
- Send us the memory dump file. It may help to detect the problem.
To create a memory dump file, please do the following:
- In the properties* file, append JAVA_ARGS parameters as follows:
-XX\:+HeapDumpOnOutOfMemoryError -XX\:HeapDumpPath\=d\:\\snapshots - Start your modeling tool.
The dump file will be created in the provided location – d:\\snapshots (please make sure that this location is available), if an OutOfMemory exception occurs. As the file may be large, please zip the created file, and upload it to the provided ftp server.
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- For MagicDraw, the properties file is magcdraw.properties (mduml.properties for MagicDraw version 17.0.4 or earlier).
- For Cameo Enterprise Architecture, the properties files is cameoea.properties.
- For Cameo Systems Modeleer, the properties files is csm.properties.
- For Cameo Business Modeler, the properties file is csm.properties.
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This issue appears when MagicDraw Look and Feel is Windows. Please change the Look and Feel to Metal. For this, select Options > Look and Feel > Metal. |
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If you are running the Sun's JVM, set the following java properties in your mduml.properties* file: in the line JAVA_ARGS=-Xmx600M, change the number of heap size '600' to maximal heap size in megabytes. For example: JAVA_ARGS=-Xmx800M This sets java heap size to 800 megabytes. If you get exception "java.lang.OutOfMemoryError: PermGen space" please, check if PermSize is specified in mduml.properties* file. The JAVA_ARGS line should look like: JAVA_ARGS=-Xmx600M -XX\:PermSize\=40M -XX\:MaxPermSize\=150M If PermSize is specified in mduml.properties* file and the same problem still appears, the MaxPermSize should be increased. PermSize is part of heap size, so MaxPermSize should always be smaller than heap size specified with Xmx parameter. For example: JAVA_ARGS=-Xmx600M -XX\:PermSize\=40M -XX\:MaxPermSize\=200M
* If you are using MagicDraw 17.0.5 or later, the name of the property file is magicdraw.properties. |
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In cases when MagicDraw is not responding, please, run submit_issue.exe. You may find it in /bin/ folder. In case there are processes, submit issue produces thread dump for it and writes it to md.log file. You can grab thread dump directly from Report an Issue frame, "MD log file" tab. Please attach thread dump to this issue report or send us md.log file. This log can be found in the user home directory ( /.magicdraw/ ). |
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We noticed such behavior under Windows NT when mapped network drives are present, but a portion of them are offline. Try disconnecting all offline drives. |
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title | What are the common recommendations to increase performance? |
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When you work with very large models or use a lot of diagrams at a time, the performance of MagicDraw may become slow. To increase an efficiency of modeling, we suggest the following solutions:
- Increase a java heap size.
- Do not keep unused diagrams open. Open project without loading diagrams. Your projects will be opened over a shorter period of time without opening a diagram as well as use less memory.
- Increase an active validation period. MagicDraw takes less memory with increased active validations period.
- Split the project to read only modules. Keep read only modules not loaded. This may help only if your project contains several parts with minimal dependencies between them.
- Use Garbage Collector to free unused memory.
- Turn of antivirus. Some antivirus software can cause significant performance decrease on project open and other actions.
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