Portal Webcache Invalidations Are Not Working, WWC-40018, WWC-40019, HTTP-404 are Raised.
Last updated on NOVEMBER 08, 2016
Applies to:Portal - Version 9.0.4 to 10.1.4.2 [Release 10g to 10gR2]
Information in this document applies to any platform.
Checked For Relevance: 16-FEB-2015
When enabling the webcache in Portal:
-> Administer TAB
-> Global settings
-> cache TAB
WWC-40018 error with HTTP-404 is raised.
A TCP sniffer placed on the webcache invalidation port doesn't show any packet coming. In Portal 10.1.4.0.0 it might show a result as being reported as a possible DNS error as apposed to a 404 error.
All invalidations examples found in middle tier $ORACLE_HOME/webcache/examples are working fine.
When clearing the webcache in Portal ->builder-> administer TAB -> Global settings -> cache TAB WWC-40019 is raised.
Running the following query in SQLPLUS as PORTAL user fails in timeout:
ERROR at line 1:
ORA-29273: HTTP request failed
ORA-6512: at "SYS.UTL_HTTP", line 1577
ORA-12535: TNS:operation timed out
ORA-6512: at line 1
where mymiddletier.oracle.com is the machine hosting the webcache and 4001 is the webcache invalidation port.
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