My charts have suddenly disappeared or are not displaying at all?

Over the years we've had just a few clients who ask for help because charts suddenly disappear or they are not displaying at all. Typically we have found that the following steps are the best place to start:

  1. Not having enough space on the local hard drive. When charts are generated, temporary disk space is used to draw the chart, and then it is passed to the browser. Please check the drive where Yellowfin is installed and make sure you have enough available space.
  2. The temporary folder used by the application server cannot be accessed, or is missing. You just need to ensure the temporary folder is there and accessible by the user used to run the Yellowfin service. Check out the link below...

http://www.seemoredata.com/en/showthread.php?53-javax.imageio.IIOException-Can-t-create-output-stream!-Error-on-Tomcat

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