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Vertically scale your PostgreSQL infrastructure with pgpool – 3 – Adding...
In the first and second post in this series we did the basic pgpool setup including the watchdog configuration and then did a simple setup for automatically failover from a PostgreSQL master instance...
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Can I do it with PostgreSQL? – 10 – Timezones
This post is inspired by a question we received from a customer: In Oracle there is the sessiontimezone which returns the time zone of the session. Asking for the time zone of the session in Oracle...
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OUD – Oracle Unified Directory 11.1.2.3 Backups Tips and Tricks
Backing up an OUD consists of several components The OUD software itself The OUD back end data The OUD configuration The OUD logical export as a ldif file However, in this post I would like to take a...
View ArticleCan I do it with PostgreSQL? – 11 – NLS_DATE_FORMAT
Following the last post about time zones this post is about the display and default format of date and time values. What people usually do to get a consistent display of date and time values in Oracle...
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GoldenGate 12.2: ERROR: Unable to create a new wallet
Today I had a very strange issue when setting up a brand new GoldenGate 12.2 installation. Installation went fine, patch went fine (PSU 170221) and then I started to configure GoldenGate. One of the...
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SQL Server on Linux and experimental Flexible Architecture
In this blog post let’s talk a little bit about SQL Server optimal installation on the Linux file system. This is probably one of the first considerations we will have as a database administrator....
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Can I do it with PostgreSQL? – 12 – dbca (database configuration assistant)
Short answer: No. Long answer: No. Every other possible answer: No. There is no such tool in PostgreSQL. In Oracle you can use the database configuration assistant to create your Oracle database. But...
View ArticleDocumentum – Thumbnail not working with TCS
A few months ago and right after a migration of around 0.5TB of documents, we enabled the TCS for one of our Application. We were using a Content Server 7.2 P05 with the associated D2 4.5 P03. As...
View ArticleDocumentum – Wrong dfc versions after installation, upgrade or patch
If you are familiar with Documentum or if you already read some of my blogs, then you probably already know that EMC has sometimes issues with libraries. In a previous blog (this one), I talked about...
View ArticleDocumentum – Increase the number of concurrent_sessions
In Documentum, there is a parameter named concurrent_sessions which basically defines how many sessions a Content Server can open simultaneously. This parameter is defined in the server.ini file (or...
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Can I do it with PostgreSQL? – 13 – create database
Following the last post about which tools you can use to create your PostgreSQL instance in this post we’ll look at how you can do the “create database” part that you would do in Oracle when not using...
View ArticleWhen automatic reoptimization plan is less efficient
11gR2 started to have the optimizer react at execution time when a misestimate is encountered. Then the next executions are re-optimized with more accurate estimation, derived from the execution...
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12cR2 DBCA, Automatic Memory Management, and -databaseType
This post explains the following error encountered when creating a 12.2 database with DBCA: [DBT-11211] The Automatic Memory Management option is not allowed when the total physical memory is greater...
View ArticleCan I do it with PostgreSQL? – 14 – optimizer hints
This is a question that comes up quite often: How can I use optimizer hints in PostgreSQL as I can do it in Oracle? Well, you cant, and the reasons are this: Poor application code maintainability:...
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OUD – Oracle Unified Directory 11.1.2.3 Tuning, It is not always the servers...
The default configuration which is shipped with OUD is not meant to be ready for enterprise usage. The default settings of OUD are targeted at evaluators and developers who run equipment with limited...
View ArticleSharding with Oracle 12c R2 Part II : Scalability and Connections
In previous blog, we talked about system-managed sharding. We saw how it is possible to create shard databases with Oracle 12c R2. Below we remind the configuration we used. VM sharddemo1: catalog VM...
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OUD – Oracle Unified Directory 11.1.2.3, Oracle generates more and more LDAP...
After installing OUD some time ago, I was doing some tests to see how it performs, and as long as I do ldap searching on the command line it looks very good. I am running Unified Directory...
View Article12cR2 DML monitoring and Statistics Advisor
Monitoring DML to get an idea of the activity on our tables is not new. The number of insert/delete/update/truncate since last stats gathering is tracked automatically. The statistics gathering job use...
View ArticleTrace files segmented in multiple parts as a workaround for bug 23300142
Today I visited a customer, who deleted a Data Guard configuration (i.e. a temporary Data Guard setup through the broker was deleted). The LOG_ARCHIVE_DEST_STATE_2 on the primary database was set to...
View ArticleService “696c6f76656d756c746974656e616e74″ has 1 instance(s).
Weird title, isn’t it? That was my reaction when I did my first ‘lsnrctl status’ in 12.2: weird service name… If you have installed 12.2 multitenant, then you have probably seen this strange service...
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