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PDP does not show user identities despite getting the correct information from the Domain Controllers
Symptoms
  • PDP does not show user identities despite getting the correct information from the Domain Controllers.

  • "Table pdp_sessions entries limit (90000) reached" critical system alert messages repeatedly appear in SmartView Tracker.

  • Clearing Identity Awareness kernel tables resolves the issue for some time (a few weeks).
Cause

Issue in the "pdp_sessions" kernel table. 

A new machine session is created, but the old one is not cleared. As a result, the old session becomes an orphan and is not cleaned when the supersession is closed.


Solution
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