Oracle VM Site Review - Oracle VM Health Check
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Watch: Hadoop vs. HBase

Every data platform has its value, and deciding which one will work best for your big data objectives can be tricky—Alex Gorbachev, Oracle ACE Director, Cloudera Champion of Big Data, and Chief Technology Officer at Pythian, has recorded a series of videos comparing the various big data platforms and presents use cases to help you identify which ones will best suit your needs.

Log Buffer #400, A Carnival of the Vanities for DBAs

Another centurion mark achieved by the Log Buffer as it reaches 400. Freshness and uniqueness of Log Buffer still is as youthful as was with the edition 1. Enjoy the gems of Oracle, SQL Server and MySQL.

Oracle:

What Cloud Infrastructure Will Best Deliver?

Join Us For a Networking Event at UKOUG

UKOUG event photo

Join us for an informal networking event alongside Rittman Mead on Monday December 8th during UKOUG. We will be discussing how to leverage data to drive your organization’s success.

What Does “Backup Restore Throttle Speed” Wait Mean?

After migrating a 10g database to 11g, I asked the Application team to start their tests in order to validate that everything was working as expected. I decided to keep an eye on OEM’s Top Activity page while they were running the most mportant job. I already knew what kind of “colors” I would  find because I had checked its behavior in the former version. Suddenly, a strange kind of wait appeared on my screen: it was my first encounter with Backup Restore Throttle Speed.

 

Watch: Hadoop vs. Cassandra

Every data platform has its value, and deciding which one will work best for your big data objectives can be tricky—Alex Gorbachev, Oracle ACE Director, Cloudera Champion of Big Data, and Chief Technology Officer at Pythian, has recorded a series of videos comparing the various big data platforms and presents use cases to help you identify which ones will best suit your needs.

Log Buffer #399, A Carnival of the Vanities for DBAs

This Log Buffer Edition brings some freshly picked blog posts right out of the gardens of Oracle, SQL Server and MySQL.

Oracle:

Suppose you have a process A that you want to run faster. This process doesn’t commit (much), so it doesn’t wait on log file sync. However, there is another multi-threaded process, B, that commits very frequently, and spends a lot of time on “log file sync”.

Pythian at UKOUG 14

Will you be joining us at the UKOUG Conference and Exhibition in Liverpool, UK? Over 200 world-class speakers and industry experts will be in attendance, including some of our very own.

Log Buffer #398, A Carnival of the Vanities for DBAs

This Log Buffer Edition covers some informative and interesting posts from Oracle, SQL Server and the MySQL.

Oracle:

Watch: Hadoop vs. Oracle Exadata

Every data platform has its value, and deciding which one will work best for your big data objectives can be tricky—Alex Gorbachev, Oracle ACE Director, Cloudera Champion of Big Data, and Chief Technology Officer at Pythian, has recorded a series of videos comparing the various big data platforms and presents use cases to help you identify which ones will best suit your needs.

New leafmisscount Option in Flex Cluster 12c

In the Oracle RAC previous version we have worked with the option “misscount” of crsctl, which applies for all the servers because there was only one kind of servers, but in the new version of Oracle (12c) we have a new kind of RAC configuration, the “Flex Cluster”. With Flex Cluster we have two kinds of servers “Hub nodes” and “Leaf Nodes”, the Hub Nodes have the same concept of the normal nodes in the previous versions, however the Leaf Nodes are different. I will let Oracle Documentation define these servers:

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