Posts Categorized: Technical Blog

Instant REST API For Any Database

Not so long ago, I was playing with ElasticSearch, which has the interesting characteristic of having a REST API as its primary interface. Sure, it’s a little more stilted and awkward than any native interface but, on the other hand, it’s a nice universal type of API. Any language that can make a http request…

Expanding the Couchbase Collector for Diamond

The code For the impatient ones, the couchbase collector can be found in github: Couchbase Collector Follow the instructions in the README file to get it installed under your diamond! Intro If you have been involved with metric collections at any point you may have heard of BrightCove’s Diamond. Diamond is literally a little piece…

List of SQL Server Databases in an Availability Group

After migrating some databases to SQL Server 2012 and creating Availability Groups for some databases, we have noticed that some of our maintenance scripts were failing with the following error: The target database (‘MyDB1′) is in an availability group and is currently accessible for connections when the application intent is set to read only. For…

Oracle Passwords: How to Use Punctuation Symbols

You can’t make a password strong enough. But at least you can try. Having at least one upper case character, one lower case character, one number, one punctuation mark or symbol, and greater than 8 characters, you can have a password which can be considered something decently safe, probably.

What Does oracle-rdbms-server-11gR2-preinstall Not Do?

I was working on a project to clone Oracle install to a new Linux server and this should be simple as oracle-rdbms-server-11gR2-preinstall RPM can be used to configure the server, right? So simple that I did not read the documentation. However, I did review Requirements for Installing Oracle 11gR2 RDBMS on RHEL6 or OL6 64-bit…

Why is Affinity Mask Negative in sp_configure?

While looking at a SQL server health report, I found affinity mask parameter in sp_configure output showing a negative value. name                                minimum     maximum     config_value run_value ———————————– ———– ———– ———— ———– affinity mask                       -2147483648 2147483647  -1066394617  -1066394617 Affinity mask is a SQL Server configuration option which is used to assign processors to specific threads for improved…

Oracle RMAN Restore to the Same Machine as the Original Database

Among the most critical but often most neglected database administration tasks is testing restore from backup. But sometimes, you don’t have a test system handy, and need to test the restore on the same host as the source database. In such situations, the biggest fear is overwriting the original database. Here is a simple procedure…

RMAN Infatuation?

Lately, I am becoming infatuated with RMAN again. Have you ever run “restore database preview”? Are you curious about how the recovery SCN are determined? Media recovery start SCN is 1515046 Recovery must be done beyond SCN 1515051 to clear datafile fuzziness If you are, then I will demonstrate this for you. RMAN LEVEL0 backup…

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