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Published Jun. 30, 2025

Getting 'DuplicateSamlIdpSsoSessionException' in the Debug Logs

Written By

Madhusudan Sharma

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Issue

Users are facing intermittent login issues in the SAML environment; however, the below error is observed frequently in their log files:

DEBUG [default task-73687][BaseSamlStrutsAction:61] null
com.liferay.saml.persistence.exception.DuplicateSamlIdpSsoSessionException: Duplicate SAML IDP SSO session for

Environment

  • Liferay DXP 7.4

Resolution

Following are the suggestions that might help to resolve this issue:

  • In general, the SSO process identifies a SAML SSO request and so the session for that portal process is created as a brand new one.
  • However, if there is an already existing session on the portal side then that might result in this  error. Please note that the Liferay portal handles a SAML SSO request and its session as a new one if there is no value of the SAML_SSO_SESSION_ID in the request.
  • The other cause for this can be inconsistency in entity ID generation on the DB level.
  • In order to confirm the inconsistency in entity ID generation, check if the value of the currentId field in the Counter DB table for the entry whose name is com.liferay.saml.persistence.model.SamlIdpSsoSession is higher than the highest value of the samlIdpSsoSessionId in the SamlIdpSsoSession DB table.
  • The SamlIdpSsoSession creation logic uses this currentId value to generate the value for the samlIdpSsoSessionId for the new SamlIdpSsoSession entity.
  • If the currentId value is lower then it should be set higher than the the highest value of the samlIdpSsoSessionId in the SamlIdpSsoSession DB table.

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