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Jim Johnson's Blog
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I read a fascinating article yesterday: OS Transactions by Porter, et al. It is about adding support in a Linux kernel for transacted memory, and then making many of the OS services transaction aware. I've long been convinced that TM has a huge potential...
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For most of the last six months, I've been responsible for disposing of an estate. The estate is small and, as these things go, fairly uncomplicated. Stressful, at times, but uncomplicated. Probably the biggest logistical complication has been that...
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A few of us have been recently been working on a new set of protocols for the project I'm currently on. The protocols themselves are unimportant, except that they're pretty involved, and for various reasons we're trying to both build and explain...
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I'll admit it. I made a huge mistake. It isn't like I wasn't warned. I read enough reviews that panned it. But, being the optimist, I went ahead and bought the 2 DVD set with both the new and the old version. After all it was only a few dollars...
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As I mentioned in a previous post , I'm essentially a plumber. I work on infrastructure software, and have focused mostly on how to hook things together to get work done reliably. I'm a reasonably literate plumber, though. I've worked, with...
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I had meant to file something before PDC, but never quite got around to it. Our group had a few people at the event, and had a presentation based on what we've been doing. If you didn’t see it, please go check out the channel 9 video of Max...
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There are some WCF-related webcasts coming up during July, with monday's one on transactional WCF support. You can find links to them on the MSDN Webcasts site. This month's talks are: Webcast Title Date/ Time Presenter Transactional Windows Communication...
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There was a tribute earlier today for Jim Gray at Berkley . I want to share some thoughts about Jim. I have had the privilege to know a lot of great engineers, a number of scarily bright people, a smaller number of truly wise people, and some solidly...
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Parts 1 , 2 , and 3 covered most of the mainline MSDTC features that show up in WS2008. And now we come to the end with three more, relatively minor, topics: VSS integration, changes in XA support, and some changes in MSDTC tracing. VSS Integration This...
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As I mentioned in parts 1 & 2 , WS2008 clusters are designed to have more than one functioning MSDTC instance. Once the DtcGetTransactionManager[Ex] had been upgraded to connect to multiple MSDTC instances simultaneously, the issues next focused on...
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As a preamble, I have to point out that most customers have little to no trouble with MSDTC in a cluster. It has been a great solution for those that need transactional consistency and high availability. Nothing in this description should suggest otherwise...
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Windows Server 2008 has a number of significant changes to MSDTC, addressing issues from performance, simplicity, and reach. These changes are the culmination of a stream of work that began with Vista, and was heavily influenced by .Net from 2.0 onwards...
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You've undoubtedly read about the announcement last week to publish our protocol documents on msdn. If you've gone and looked , there's an extensive set of documents posted. You may also remember that I mentioned that I'd been involved in some projects...
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I read a couple of weeks ago that HP is closing ZKO (Spitbrook Road, Nashua). I have a lot of fond memories of working in VMS development in ZKO1/1 (and later ZKO3/4) in the 80's and early 90's. It's sad to see that it is going. Of course I miss the people...
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I have clearly been away for a while. This blog effectively shut down about 18 months ago. For the last few months I've been trying to figure out if I should reopen it, and I set a date of Jan 1 to make that decision. I've decided to attempt to return...
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