I've been running Joget for over a month and it's been working fine. Today when I tried uploading my latest Workflow version I got an error.... i tried restarting Joget a couple times, and I'm always getting this error msg --> Problem while initializing caches. Suggestions?

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2011-08-30 21:50:14,125: Problem while initializing caches !!!
java.lang.NullPointerException
        at org.enhydra.shark.repositorypersistence.DODSRepositoryPersistenceManager.getXPDL(DODSRepositoryPersistenceManager.java:296)
        at org.enhydra.shark.SharkUtilities.restorePackage(SharkUtilities.java:1468)
        at org.enhydra.shark.SharkUtilities.synchronizeXPDLCache(SharkUtilities.java:1418)
        at org.enhydra.shark.SharkUtilities.restorePackages(SharkUtilities.java:1450)
        at org.enhydra.shark.SharkEngineManager.initCaches(SharkEngineManager.java:978)
        at org.enhydra.shark.SharkEngineManager.init(SharkEngineManager.java:874)
        at org.enhydra.shark.SharkEngineManager.configure(SharkEngineManager.java:535)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
...

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5 Comments

  1. Paul

    I also can't see the workflow anymore in the Joget Console. If I try to upload the XPDL I get this error 'java.lang.Exception: The package with id **************_pkg is already open'. 

    When I try to update the package with the workflow designer I get this error:

    org.enhydra.shark.api.internal.repositorypersistence.RepositoryException No xpdl ??(***************_pkg, 103) in repository

    Anyone have a suggestion? It seems like my workflow is corrupted somehow............

  2. Paul

    Below is the line that's failing when I start the Joget server.... looks like an issue with my XPDL... this error started when I was uploading a new version of my XPDL. Could something be corrupted in the database or with my XPDL? How can I clear this?  

    2011-08-30 22:45:08,718: SharkUtilities -> synchronizing XPDL cache

    2011-08-30 22:45:10,625: Problem while initializing caches !!!
    java.lang.NullPointerException
    at org.enhydra.shark.repositorypersistence.DODSRepositoryPersistenceManager.getXPDL(DODSRepositoryPersistenceManager.java:296)
    2011-08-30 22:45:08,718: SharkUtilities -> synchronizing XPDL cache

    1. Paul

      Nvm. Figured it out. Somehow when I deployed the last workflow the database got out of sync. The table 'shkxpdls' had a record for the latest workflow version, but it was missing from 'shkxpdldata'. So I deleted the record from table 'shkxpdls' and everything now works fine. Seems like when I updated the last workflow the changes were committed to the 'shkxpdls' table but not the 'shkxpdldata' table. Is this a small bug? Perhaps both inserts should be committed at the same time. 

      1. Paul

        Root cause turned out to be the MySql option 'max_packet_size' needed to be increased. I set it to 32M and that seemed to fix the update issue. 

  3. Aristo

    I also have the same problem. But I'm using Oracle for the database.