Wednesday, May 29, 2019

Oracle Enterprise Manager 13.3.2 Database Plugin New Features (Flash and JET)


Oracle EM 13.3 PG was released April 28th 2019. This new (plugin only) release contains 8 new plugins including a new version of the DB plugin.

After installing these plugins we noticed several changes in behavior for the DB targets.

1.    All pages that used Adobe Flash now use Oracle JavaScript Extension Toolkit (JET)
2.    Top Activity and Emergency Performance pages were completely removed from the Performance menu

At the beginning was weird to use just ASH analytics instead of Top Activity page but all the key information is there.

There’s an option to revert 3 JET pages back to Flash if needed. This can be done through emctl commands. All this information can be found on MOS 2422790.1

Also, if you really need the old Top Activity page you can still access it using a direct URL link. For this follow MOS 2528627.1 for more details.

Thanks,
Alfredo

Monday, May 27, 2019

Unable to Extend OEM 13.3 Domain to Add an Additional OMS

While trying to add an additional OMS to the current OEM 13.3 GCDomain using the provisioning console there’s an error in the Install homes step.

The error contains the following message:

Caused by: oracle.sysman.oii.oiif.oiifb.OiifbEndIterateException:
oracle.sysman.oii.oiif.oiifb.OiifbEndIterateException: SEVERE:Values for the following variables could not
be obtained from the command line or response file(s):
MYORACLESUPPORT_USERNAME(MyOracleSupportUsername)
Silent install cannot continue.


This issue is related to Bug 28290139 and the workaround can be found in MOS 2432095.1
After performing the workaround the OMS addition job needs to be executed from scratch. This resolves the issue.

Thanks,
Alfredo

Friday, April 19, 2019

Oracle Autonomous Data Warehouse – What is it?


Oracle Autonomous Data Warehouse (ADW) is one of the so-called DB as a Service DBaaS or probably we should call it Data Warehouse as a Service DWaaS with the difference that this service is completely automatic and autonomous.

This service is comprised by an Oracle Database (of course) already pre-configured for analytics, data lakes and data warehouse workloads. This Oracle Database (PDB) has 18c features running on Exadata hardware. Oracle Exadata software is 18c with features like In-Memory delivered from the cell server.

There’s a service console that helps to manage the ADW services. On top of this, Machine Learning (ML) tools help with data analysis and data models.

Development tools like SQL Developer are useful to create objects, load data and more.

Let now talk about tasks that happen automatically:

Automatic statistics gathering during direct-path load operations
Automatic tuning
Automatic Partitioning
Automatic In-Memory
Automatic Indexing (soon)
Automatic Compression
Automatic Tablespace Management
Automated backups and patching

ADW is also capable of repair itself. Machine Learning is used to detect anomalies and uses pattern recognition to determine if this problem is already in the problem knowledge-base. If is a known problem, it will apply the fix automatically.

On the security side all the information is encrypted at rest. This means that backups and all data in the tablespaces is encrypted using TDE. The connectivity between ADW and the rest of the world is secured be default. Oracle provides a wallet file that contains all the connectivity information required to login. If you open this file you’ll notice that all connectivity is being done through SSL.

(security=(ssl_server_cert_dn=…

Provisioning is quite easy using the service console.

From the main dashboard you can click on “Create a data warehouse” button.





Select the Workload type between Autonomous Data Warehouse ADW or Autonomous Transaction Processing ATP loads.



Next you choose a compartment where the ADW database is going to live. For this example I’m going to choose ADWTest01 compartment. It is not recommended to use the root compartment.



Then we are going to set the Display and Database names. For this example, I’m choosing 1 OCPU and 1 TB of storage. Keep in mind that ADW is elastic, this means we can add more OCPUs and Storage on the fly without the need for downtime.




From the Administrator Credentials section we are going to set the ADMIN account password.



Next is license type. You can choose to use a license that you already own or subscribe to a new one.



Last but not least is the Tags section. You can add a tag to this ADW database to better manage it inside your tenancy.



Let’s now click Create Autonomous Database and wait few minutes for OCI to provision it.



The orange ADW icon will turn green once the ADW database is fully provisioned.



In my next post I’ll cover how to connect o the ADW database and how to load data to it.

Thanks,
Alfredo