Identifying the Problem
When you encounter the maximum limit of file handles in Panopticon, data connection or logging into Panopticon could fail. To confirm that Panopticon has hit the file handle limit, you should look for this message in the Panopticon log:
(Err: 60) Out of file descriptors suitable for socket operation
In conjunction with the error message above, you may also see the following messages in the Panopticon log:
com.panopticon.server.core.exception.HyperWorksUnitsLicenseException: Unable to check
out a license
java.lang.Throwable: Altair License Manager: License error
Other things that could indicate that Panopticon has reached the maximum limit for file handles, but can also have other reasons, are:
- The browser console may show error messages like:
Unable to check out a license
- The dashboard may show the following message when you click the Edit button:
Unable to edit – HWU license error
- The dashboard may show the following when a Viewer wants to open a workbook:
AW Snap ! Unable to checkout license; Go to workbook overview
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