Infrastructure at your Service
As you may know, Oracle 20c is in the cloud with new features. The one I have tested is the PREPARE DATABASE FOR DATA GUARD. This command configures a database for use as a primary database in a Data Guard broker configuration. Database initialization parameters are set to recommended values. Let’s see what this command will do for us The db_unique_name of the primary database is prod20 and in the Data Guard I will build,…
By Franck Pachot . Those parameters, SQLNET.EXPIRE_TIME in sqlnet.ora and ENABLE=BROKEN in a connection description exist for a long time but may have changed in behavior. They are both related to detecting dead TCP connections with keep-alive probes. The former from the server, and the latter from the client.
Introduction ODA X8-2, in the S, M or HA flavour, is the new database appliance from Oracle. But as a brand new product, you can experience troubles due to the lack of maturity. This time, it concerns database creation that can be extremely slow on these servers if you are using ODA 19.5. Deployment, appliance creation and core configuration X8-2 reimaging is fine, and appliance creation is done without any problem on X8-2. Don’t hesitate…
The emdef is a command line utility used to make various modifications to job definitions in the Control-M/EM database. we saw how emdef can help to manage Calendars and Folders, today it the Jobs turn so let’s deep in 😉
Mistakes or accidental data deletions can sometimes happen on a productive MariaDB Galera Cluster and this can be disastrous. There are so many cases I have heard by customers and hereafter are some of the most common: – dropping one column of a table – dropping one table – updating a big table without a where clause What if it was possible to restore online a subset of data without downtime?
Introduction: For security purposes we sometimes must update the password of our Control M architecture. This task seems to be easy, but you must be careful to update the passwords wherever they are used. Today we will check how to update the password of our Control M infrastructure including application user and database owner for each of our databases. Prerequisites: Be sure to have the old password to proceed easier.( not mandatory but easier…
In a previous blog I talked about the emdef utility and how it can help to manage and standardize calendars across multiple environments. In this blog we will deal with folders definitions in the Control-M/EM database. This can be used to extract data as a backup, or for migration from one to another environment.
The emdef is a command line utility used to make various modifications to calendar definitions in the Control-M/EM database. It can be used to extract data as a backup, or for migration from one to another environment.
Control-M: Export/Import Calendars What is a Control M Calendar? A Control M calendar is used to schedule Control M jobs that are assigned to him: For example the job named JOB_TEST will be executed depending of the days and rules defined in the calendar named CALENDAR_EXAMPLE_1 : You can see that the job is scheduled following the calendars rules (by selecting View schedule) Also you can list the calendars available in the tools tab of…
By Franck Pachot . Microsoft SQL Server has implemented MVCC in 2005, which has been proven to be the best approach for transaction isolation (the I in ACID) in OLTP. But are you sure that writers do not block readers with READ_COMMITTED_SNAPSHOT? I’ll show here that some reads are still blocked by locked rows, contrary to the precursors of MVCC like PostgreSQL and Oracle.
By Franck Pachot The Oracle Cloud is not only for Oracle Database. You can create a VM running Oracle Linux with full root access to it, even in the free tier: a free VM that will be always up, never expires, with full ssh connectivity to a sudoer user, where you are able to tunnel any port. Of course, there are some limits that I’ve detailed in a previous post. But that is sufficient to…
Over 1 million IOPS (@8 KByte) and more than 26 GByte/s (@1MByte): Read more to see all impressive benchmark figures from a server with 14 NVMe drives and read why this is still not the best you could get…
