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Join us for the 2016 Software Training Workshops

19 September 2016

Training

Registration for Unidata's 2016 Software Training Workshop has been extended until October 5, 2016. The workshop features a session on using the Python programming language with Unidata technologies, Unidata's display and analysis packages IDV and AWIPS-II (with GEMPAK), as well as the Local Data Manager (LDM)

The workshop will be held October 17 – November 1, 2016. Individual courses last from one to three days.

Unidata's training workshops are developed and presented by the software developers and support staff for each package, so you can be sure to get your questions answered.

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News and information from the Unidata Program Center

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    Velocity Template Error

    • Unexpected Exception
    • Roller has encountered and logged an unexpected exception.
    Exception Velocity template error : standard
    Message Invocation of method 'retrieveWeblogEntries' in class org.apache.roller.weblogger.pojos.wrapper.WeblogCategoryWrapper threw exception javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.7.5.v20191016-ea124dd158): org.eclipse.persistence.exceptions.DatabaseException
    Internal Exception: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 86,764,676 milliseconds ago. The last packet sent successfully to the server was 86,764,676 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.
    Error Code: 0
    Call: SELECT id, description, image, name, position, websiteid FROM weblogcategory WHERE ((websiteid = ?) AND (name = ?))
    bind => [2 parameters bound]
    Query: ReadAllQuery(name="WeblogCategory.getByWeblog&Name" referenceClass=WeblogCategory sql="SELECT id, description, image, name, position, websiteid FROM weblogcategory WHERE ((websiteid = ?) AND (name = ?))") at roller-custom.vm[line 284, column 21]
    Type unidata:Weblog
    Exception org.apache.velocity.exception.MethodInvocationException