12c_2

CRS-1136 when upgrading Clusterware to 12.1.0.2

Recently I have tried to upgrade the Clusterware from 12.1.0.1 to 12.1.0.2 on a two node Linux cluster. After starting the rootupgrade.sh I got the following error. CRS-1136: Rejecting the rolling upgrade mode change because the cluster is being patched. CRS-4000: Command Start failed, or completed with errors. 2014/08/07 12:48:41 CLSRSC-511: failed to set Oracle…

pflaster_Fotor

sqlplus preliminary connection

Some time ago a customer had problems with a application that generates many blocking sessions. In the end all the blocking session grow up and exceeds the avaible processes on the database so that the ORA-00020 maximum number of processes exceeded error occur. The customer also ask me, to analyze the problem to know which…