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Multi Threaded OCI/OCCI Application Leaks Memory With 12c Client. (Doc ID 2106522.1)

Last updated on JANUARY 29, 2022

Applies to:

Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


 1) Multi threaded OCI/OCCI application leaks memory when compiled and run with 12c client. Same code does not leak when run with client.

 2) Memory leak report from the valgrind or other equivalent tools has reference to "ztca_" functions. For example, ztca_GetRandom -> ztca_GetRandomMC-> ztca_rsaAdpCreateCtx.

 3) Issue is specific to multi threading concept with 12c client version and not applicable when threading is not used. 


Either the client is upgraded from lower version to 12c or its a new deployment with 12c client.


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