Last updated on NOVEMBER 08, 2016
Applies to:Portal - Version 188.8.131.52.0 to 184.108.40.206.0 [Release FMW11g]
Information in this document applies to any platform.
In a Fusion Middleware 220.127.116.11 environment with multiple Oracle Portal 18.104.22.168 middletier servers configured with OAM 22.214.171.124, performance degradation was observed while performing performance tests. The performance degradation was observed in the Portal metadata repository database. In the event of a performance drop, the wait events 'library cache lock' and 'cursor: pin S wait on X' accounted for the majority of the overall waiting time in the database. From the information in the ADDM report, the SQL statement 'select * from wwsso_ls_configuration_info$ where 0 = 1' could be associated with the performance drop :
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