This illustration shows the details of the mult1.example.com
Oracle Streams configuration, including the following mechanisms:
One queue that is used by the capture process, propagations, and apply processes.
A capture process that captures changes in the redo log and converts relevant changes into LCRs, which it enqueues. The capture process captures a change only if its tag is NULL
.
One apply process that applies changes from mult2.example.com
and another apply process that applies changes from mult3.example.com
. Both of these apply processes dequeue changes from the same queue. Any apply change from mult2.example.com
and mult3.example.com
has a tag of '00'
in the redo log.
One propagation to propagate locally captured LCRs to mult2.example.com
and another propagation to propagate locally captured LCRs to mult3.example.com