Gleb Otochkin

Optimizing CPU cores and threads for Oracle on AWS

A Smarter Way to Scale: Custom CPU Options on AWS About a couple of weeks ago, AWS introduced a new option to manage ...

Orphaned disks in OVM and what to do with them

Some time ago I was doing a maintenance on an OVM and noticed that it had significant number of disks without mapping ...

Replicating users and tablespaces with Oracle GoldenGate

I decided to write this blog post after reading some comments on my older posts and several online discussions where ...

Oracle GoldenGate microservices architecture - first try.

Three or four months ago Oracle released a new 12.3 version of the Oracle GoldenGate (OGG) software. The release did ...

Oracle database upgrade on RDS AWS and SPM baselines

Introduction A couple of days ago I saw a question posted online asking about how AWS upgrades an RDS Oracle database ...

Network multicast support on Azure

Updating ASMLIB Driver Using "update-driver"

It is a controversial question whether to use ASMLIB for managing disks for an ASM instance, but I don't want to start ...

SharePlex replication between two instances on the same host

Several days ago I was asked a question about SharePlex and should verify behaviour before providing the answer. I had ...

Oracle RAC on Azure

Microsoft Azure provides an acceptable and affordable platform for a training environment. I am an Oracle DBA, and use ...

Truncates and sequences replication in Oracle GoldenGate

We use the terms DDL and DML in our DBA life with Oracle all the time. The first stands for Data Definition Language ...

Oracle Live SQL: explain plan

We've all encountered a situation where you want to check a simple query or syntax for your SQL and don't have a ...

GoldenGate 12.2 big data adapters: part 1 - HDFS

December 2015 brought us a new version of GoldenGate, and a new version for Big Data adapters for the GoldenGate. Let's ...

AWS DMS tips for Oracle migrations

GoldenGate 12.2 big data adapters: part 3 - Kafka

This article continues our deep dive into the GoldenGate Big Data adapters, specifically focusing on the Kafka adapter. ...

Installing Oracle 18c using command line

Introduction Just three days ago Oracle released Oracle 18c for general installation on-premises. We've had a taste of ...

What you should know about Docker Containers for Oracle Data Integrator

Not long ago, Oracle adopted the Docker engine as one of the accepted platforms for its products and published a set of ...

GoldenGate 12.2 big data adapters: part 4 - HBASE

This is the next post in my series about Oracle GoldenGate Big Data adapters.

GoldenGate 12.2 big data adapters: part 2 - FLUME

In this blog post, we continue our review of the new Oracle GoldenGate Big Data adapters. In the first part of the ...

HugePages for Oracle database in Oracle Cloud

I recently published a blog post about large pages support in AWS RDS for Oracle and someone asked me if and how it ...

Oracle GoldenGate Installation, Part 1

I want to introduce several post about Oracle GoldenGate (GG), a relatively new replication software from Oracle. We ...