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  1. WebTop
  2. WT-1004

Atmosphere UUID cache is causing OutOfMemory

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Details

    • Bug
    • Status: Closed
    • Highest
    • Resolution: Done
    • Core
    • None
    • 5.11.0
    • release
    • 5.11.3
    • wt-5.12.3
    • 0431

    Description

      After the introdution of new fixes (WT-971) that leverages on push channel for frequent updates, in some situations, modified Atmosphere broadcaster cache fails to remove entries, causing after some time a memory allocation problem.

      It's hard do define a sequence of steps to cause the OutOfMemory error, it depends from several factors: # of users, # logins/logouts, etc.

      To se if this can happen you need to login into WebTop make sure to have mail service, then after some minutes logout and then login again. Repeat this 3/4 times. Then make a JVM heap dump and analize live objects using VisualVM or MemoryAnalyzer: if there are UUIDBroadcasterCache classes that consume resources even if the user is out it's clearly a symptom of the problem. 

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            Unassigned Unassigned
            matteo.albinola Matteo Albinola
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