The behaviour of the pullup dependency as described in the Oracle documentation for CRS resources is counter-intuitive and so I decided to do some testing around it to see the results and reassure myself that the documentation was correct.
Intermittent ORA-12514 error connecting to SCAN listeners
Users were complaining of ORA-12514: TNS:listener does not currently know of service requested in connect descriptor errors whilst connecting to a database on a RAC cluster. The cause was elusive, but was eventually tracked down to an unpublished bug relating to SCAN listener re-registration.
“PRVF-5408” – NTP Time Server error
The following message was being repeatedly reported in our alert log: 2012-12-05 04:44:36.067 [client(10553)]CRS-10051:CVU found following errors with Clusterware setup : PRVF-5408 : NTP Time Server "138.35.51.113" is common only to the following nodes "ora005" PRVF-5408 : NTP Time Server "138.35.51.113" is common only to the following nodes "ora005" Certainly a worrying message -- imagine the... Continue Reading →
Converting an ACFS General Purpose filesystem to an Oracle Home filesystem
I recently came across a scenario whereby we had created our ACFS filesystems as General Purpose filesystems using asmca, but then discovered that we needed these filesytems to be available prior to the database starting up and that we should have registered them as Oracle Home filesystems. This post details how we went about converting the filesystem without any loss of data.
Oracle 11gR2 RAC Cluster Verify Errors – NTP
During an installation of Oracle 11gR2 Real Application Clusters we encountered a warning during cluster verification that the NTP daemon did not have slewing enabled.
