Infrastructure at your Service
The last post in this series outlined on how to do an initial load of the target database using the “file to replicat” method: Installing and patching Oracle GoldenGate 12c to the latest release Setting up a sample replication with GoldenGate Performing an initial load with GoldenGate (1) – file to replicat In this post I’ll show how to do the initial load by exporting a schema from the source database, importing that into the…
The first post in this series outlined on how to install and patch Oracle GoldenGate to the latest release.The second post explained how to create a sample replication with Oracle GoldenGate: Installing and patching Oracle GoldenGate 12c to the latest release Setting up a sample replication with GoldenGate In this post I’ll look how to do an initial load using GoldenGate by using the “File to replicat” method (several other methods are available). To start…
I had to perform a duplicate database between 2 ODAs and was always facing an ORA-65500 at the begin of the RMAN operation. Looking a bit deeper in the log outputs pointed me out that it was due to some changes in the way RMAN makes the duplicate in 12c and cluster resources management.
By Franck Pachot . Look at the Oracle Download page: Standard Edition is there in 12.1.0.2 – more than one year after the release of the patchset for Enterprise Edition. It’s a new name – SE2 in short – and new rules. Let’s have a look at it.
A couple of days ago, I was involved in a project about implementing availability groups with SQL Server 2014. My customer wanted to isolate the replication traffic from the public network. The idea behind was to get a better control of the network bandwidth as well as to be sure that the replication can be done without any latency issues in case of heavily network traffic issued by other applications or backup activities for instance….
The first post in this series outlined on how to install and patch Oracle GoldenGate to the latest release: Installing and patching Oracle GoldenGate 12c to the latest release In this post I’ll look in how to prepare the databases and how to setup GoldenGate for a first sample replication between two Oracle 12.1.0.2 databases. My test setup is as follows: Hostname Database Type oelgg1 DB1 Source oelgg2 DB2 Target The idea is that…
As more and more customers ask for expertise in Oracle GoldenGate this blog post is the first in a series and outlines how to install Oracle GoldenGate 12c and how to patch it to the latest release on Oracle Linux 7.1 x64. The installation sources (as always) can be downloaded from otn.oracle.com. For the latest patchset you’ll need access to mos. At the time of writing the latest patchset is 12.1.2.1.9 and can be downloaded…
By Franck Pachot . In the previous blog post I’ve measured the physical i/o performance, with SLOB. We can run the same with a small size of data and a large buffer cache in order to measure logical reads (LIOs) and CPU performance.
Before PostgreSQL 9.5 (which is in alpha2 currently) you could grant access to individual columns of a table to users or roles. A little test script to demonstrate this: ([email protected][local]:5432) [postgres] > select version(); version ————————————————————————————————————– PostgreSQL 9.4.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-9), 64-bit (1 row) create table t ( id int primary key, name varchar(50), salary bigint ); insert into t ( id, name, salary ) values (…
By Franck Pachot . You buy resources on the Cloud, but they are mutualized, thanks to virtualization. Are you sure you have the resources you paid for? When it comes to Oracle databases there are 3 ways to test performances: Run an application, or a simulation of an application, such as the excellent SwingBench from Dominic Giles Run low-level calibration tools, such as Orion that simulate database, good when you have no database yet Or…
