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Prevent concurrent modifications of the same User object

Jan Tošovský, modificado 1 Ano atrás.
Prevent concurrent modifications of the same User object
Liferay Master Postagens: 576 Data de Entrada: 22/07/10 Postagens Recentes

When the User is signed in, the last login date is updated in DB. However, in some scenarios, this can happen in multiple threads, and fail:

2024-06-18 08:12:16.932 ERROR [ajp-nio-127.0.0.1-8009-exec-2085][MainServlet:543] null
com.liferay.portal.kernel.exception.SystemException: com.liferay.portal.kernel.dao.orm.ORMException: javax.persistence.OptimisticLockException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) : [com.liferay.portal.model.impl.UserImpl#964101]
  1. Enable the Remember Me option when logging into the portal
  2. Open portal pages in multiple tabs
  3. Close the browser
  4. Open the browser. The tabs with portal pages are reloaded and each performs auto-logging on behalf of the user (in fast pace). These requests are processed in multiple threads and sometimes fail.

 

login locking database operations concurrency
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Jamie Sammons, modificado 1 Ano atrás.
RE: Prevent concurrent modifications of the same User object
Expert Postagens: 367 Data de Entrada: 05/09/14 Postagens Recentes

Bug report created: https://liferay.atlassian.net/browse/LPD-30166