Over the last two weeks I’ve been working on a heartbeat monitoring solution for a client. This is not the normal heartbeat solution provided by Oracle as described in note 1299679.1; yet very similar. The approach that I configured is similar to a traditional heartbeat setup but uses the same extract and replicats already being used by the database/application. For simplicity reasons, I like to call this approach an Integrated Application Heartbeat.
In order (more...)
Normally, I don’t mind errors when I’m working with Oracle GoldenGate (OGG); I actually like getting errors, keeps me on my toes and gives me something to solve. Clients on the other hand do not like errors…LOL. Solving errors in OGG is normally pretty straight forward with the help of the documentation. Although today I can almost disagree with the docs.
Today, as I’ve been working on implementing a solution with OGG 11.1.x (more...)
Every once in awhile when I restart an extract, I see entries in the report file that reference “Bounded Recovery”. What exactly is “Bounded Recovery”?
First, keep in mind that “Bounded Recovery” is only for Oracle databases!
Second, according to the documentation, “Bounded Recovery” is a component of the general extract checkpointing facility. This component of the extract guarantees an efficient recovery after an extract stops for any reason, no matter how many uncommitted transactions (more...)
Replicating data can be a time consuming process to setup. Fortunately, Oracle GoldenGate provide a few tools to help ease the complexity of setup. One of these tools is the “macro”. Macros are used to simplify and automate the work associated with setting up and replicating data. So what exactly is a macro? Oracle defines a macro as:
A macro is a built-in automation tool that enables you to call a stored set of processing (more...)
Recently, I’ve been doing some work with a client where tokens need to be used. It came to my attention that the basic usage of tokens is misunderstood. Let’s see if I can clear this up a bit for people reading.
In Oracle GoldenGate, tokens are a way to capture and store data in the header of the trail file (more info on trail headers here). Once a token has been defined, captured and (more...)
Wither you use a single OEM and migrating to a new OEM or have multiple OEMs, the need to move templates between environments will arise. I had this exact problem come up recently at a customer site between an OEM 11g and OEM 12c. In order to move the templates, I needed to export the multiple monitoring templates using EMCLI. The command that I used to do individual exports was the following:
./emcli export_template -name="<template (more...)
Oracle Enterprise Manager 12c Release 4 has a lot of new features; however, I quickly want to focus on a feature that has been in OEM12c for awhile. This feature is Business Intelligence Publisher (BIP). BIP has been a part of OEM12c since it was initially released; at first it was a bit cumbersome to get it installed. With the release of 18.104.22.168, the OEM team has done a great job at (more...)
!The code contained in this post is meant to be used at your own risk!
With any Oracle GoldenGate replication configuration, it is always good to monitor what is going on. One aspect that many people want to know is how can I validate that every record is being transferred to the target system. Once such way is to use Oracle Veridata; however, some times there is not enough time to setup and (more...)
When working with Oracle GoldenGate, understanding the System Change Number (SCN) is important. The SCN is an internal number maintained by the database that keeps track of the changes made to the database for recovery purposes. The SCN is also important when working with Oracle GoldenGate. In many environments, instantiation of Oracle GoldenGate environments require knowing where to start the replicat from.
To find the current SCN for the database, Oracle has made this pretty (more...)
This is just a quick post while I’m waiting on a few other things to line up today. For many of us, the long awaited Release 4 of Oracle Enterprise Manager 12c is out! This release of OEM 12c has many exciting improvements and some really cool new stuff. I cannot remember all of them, but one I’m looking forward to is the AWR Warehouse and figure out how all of it (more...)
In order to upgrade out OEM environment from 22.214.171.124 to 126.96.36.199 we need to download the latest version of OEM from either http://otn.oracle.com or from http://edelivery.oracle.com. Once we have the files needed to upgrade, we need to stage them in (more…)