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"Broken pipe" IOException Causes Http Session Leaked After Applying WLS12.1.3PSU (Doc ID 2486990.1)

Last updated on JUNE 14, 2023

Applies to:

Oracle WebLogic Server - Version and later
Information in this document applies to any platform.


After the April 2018 WLSPSU (Patch 27419391 ) was applied, http session leaking comes with "Broken pipe" IOException. It was observed that every time "Broken pipe" IOException occurs, one session object was leaked.

The issue is not seen on plain 12.1.3, but only after applying the PSU. The issue is replicated on plain and also on July PSU.


Investigating the heap dumps, it could be observed that weblogic.servlet MemorySessionContext class is the principal memory leak suspect

 As you can see the referenced chains, the corresponding high count of MemorySessionData with the weblogic ExecuteThread (suspect 2).




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