Author: Markus Perdrizat

  • Considerations for Hadoop and BI

    Cloudera are looking at Considerations for Hadoop and BI in a little series of two articles (2nd part). BI tools traditionally were designed for small volumes of structured data where Hadoop generally stores data in complex formats at scale and processes data on read using MapReduce, so that can be quite a problem, and it’s…

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  • VoltDB – DIY In-Memory OLTP

    Merv Adrian writes about VoltDB, who recently announced more about what they’re doing, in VoltDB – DIY OLTP. Open Source. Win. VoltDB runs completely in memory, scales on multiple nodes, but only supports a limited set of ANSI SQL. Any missing functions can be added through a fast Java API, hence DIY. They’re lead by…

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  • Oracle Buys Secerno

    Yesterday Oracle announced that it has entered into an agreement to acquire Secerno, the UK-based Database Activity Monitoring firm. Oracle posted a FAQ  on the acquisition with some generic data points. Securosis have some good initial analysis on the deal. The product also supports MS SQL Server and Sybase ASE.

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  • Shock, vibe and awe

    How to speed up your database by 50% to 250% with a single hardware upgrade: swap your rack! In Shock, vibe and awe, Robin Harris looks at the impact of disk vibration on performance, and the findings are incredible. Using a carbon fibre composite rack will reduce vibration a lot. Based on this USENIX paper…

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  • Data Warehouse Best Practices

    The folks at Oracle’s Data Warehousing group have put together a comprehensive list of Data Warehouse Best Practices on OTN.

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  • Larry Ellison über Jonathan Schwartz

    Autsch: Ellison says he learned that Sun’s pony-tailed chief executive, Jonathan Schwartz, ignored problems as they escalated, made poor strategic decisions and spent too much time working on his blog, which Sun translated into 11 languages. “The underlying engineering teams are so good, but the direction they got was so astonishingly bad that even they…

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  • Der Erzdämon ist besiegt

    Wieso ist es gut, dass mein Vaterschaftsurlaub jetzt vorbei ist?

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  • EC-Karten ohne Cash

    Wer hat sich diesen Blödsinn ausgedacht, und wird in Zukunft die Maestro-Karten ohne Cash-Funktion ausliefern? (Via)

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  • Der richtige 10. Geburtstag

    Was feiert dieses Blog heute? (Und nicht letztes Jahr!)

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  • Mein Vorsatz für 2010

    Keine Tagesfragen mehr schreiben!

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