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Extreme Management Center 8.1.2.59 GUI Periodically Returns "404 not found" After Several Days of Service

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TitleExtreme Management Center 8.1.2.59 GUI Periodically Returns "404 not found" After Several Days of Service
Symptoms
  • GUI returns "404 not found".
  • Reboot to recover.
  • GUI "404 not found" returns after a few days.
  • server.log may report either several repetitive "null pointer exceptions" or "too many open files" prior to any reboot to recover.
Environment
  • Extreme Management Center (XMC)
  • NetSight Console
  • Software Release 8.1.2.59
Cause
A open file descriptor leak is present in the scripting engine.
Resolution
This issue is resolved in Extreme Management Center software release 8.1.4.40 and above.
Additional notes
The server.log may report multiple Java "null pointer exception" or "too many open files" events which is a high level indication that this problem has occurred.

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