I have not blogged about new features of OpenLogReplicator since version 1.0 was released. Now it is time to catch up. Every version apart from bug fixes and stability improvements include new major features: Version 1.5.0 Key feature of this release is the ability to produce metrics directly for Prometheus. The metrics include counters for […]
OpenLogReplicator 1.5.0 released Read More »
I love situations when the provider of software advertises some feature but does not tell what it really is and how it is implemented. Both Ask Tom and Stackoverflow don’t really tell you what is it really about. Well, in such cases it is best to actually see at some code which is parsing the
Oracle XMLType binary vs CLOB Read More »
Oracle at some point of decided that users might want to replicate the changes from the database to other targets. What they noticed, that the architecture of the database did not allow easy replication since the redo log did not contain information that would allow to identify the exact row, that has been modified. The
Supplemental logging – how much space does it require? Read More »
The format is proprietary and there is no public official document which would describe the structure. Here is a brief summary of various sources which are publicly available. One might think that there is very little information available, but that’s not true. This is a list I have made in the past when I was
Oracle redo log format community documentation Read More »
Every Oracle database user assumes that the output of the logdump command should provide a valid output. During testing of OpenLogReplicator I came across something strange. It appears that the output of OpenLogReplicator logdump mode is better than the original output of Oracle database logdump command. Maybe I am wrong? Let’s create a test scenario
logdump output errors for tables with ROWDEPENDENCIES Read More »