Some question on CORE BPEL ENGINE

Hello,
I've read Chapter 4 and now I've some question:
1-Clustering: What's you intend which expression "fail-over can be configured on the engine" and How? What Kind of clustering you realize (active-active, active-passive,...)?
2-I think that I don't exactly understand what you intend with "BPEL Compensating Transaction Model" could you give me more information about this?
thank you guys!
Andrea

1- I just completed a draft of a tech note on High Availability that I can share with you that explains the clustering model in detail. At a very high level, the BPEL Server is completely stateless and reliable, including a built-in recovery service that enables failover in case of failures. You don't need to cluster the app-server to be able to cluster BPEL servers (for either high availability or scalability).
2 - BPEL provides support for compensating transactions, which is an alternative transaction model when XA-style, ACID transactions can not be used (either due to the long-running nature of a "transaction" or the inclusion of services which don't support XA/JTA style transactions. We have code examples available for this and slides from our training course that discuss it.
Send me an email if you would like access to either of these documents. I'll also try to publish them to OTN in the next few days as tech notes, but in the meantime, I'm happy to share the information directly with any individuals who want it.
Dave
David Shaffer
Product Mgr, Oracle BPEL Process Manager
[email protected]
W: 650.506.1729
http://otn.oracle.com/bpel

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    >
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    bumping up to check if some one can provide more information
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    mrcheekz

    Hi all,
    i have some questions - maybe some of you guys may
    help me.
    here we go.
    1. here in germany we have three options.
    - Core Duo 1,83 GHz with combo drive, white (1079
    Euro)
    - Core Duo 2GHz with DVD Burner, white (1279 Euro)
    - Core Duo 2GHz with 80GB Harddisk and DVD Burner,
    black (1479 Euro)
    Is it worth to buy the middle option? 200 Euro extra
    for 0,17Ghz and a DVD Burner - sounds a bit
    expensive?!
    2. Is the performance difference betweeen 1,83 Ghz
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    Barely, but if you're buying a new computer, it's always a good idea to get the fastest that's currently out.... simply because it won't be outdated as fast as if you get the lowest option.
    3. Why is a RAM upgrade to 1GB recommended? and is
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    in the shop said that I will loose guarantee if I
    will do this by myself. Harddisk costs 80GB (+40€),
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    expensive!!!!
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    cheers,
    mrcheekz
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    Resubmitting...

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    3.     Is there a big change of OID API from 10g to 11g? If so, I think a big effort maybe on application modification.
    4.     I found that there is a OAM Basic version for OSSO 10g upgrade. So if this OAM Basic will migrate the OSSO configuration (like external application) automatically, or it must be re-configed after the upgrade?
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    ขอบคุณครับ
    อาคเนย์  อุดปิน
    กด
    <Edited By Host>

    Google translation:
    พนักงานของ iTunes Store จะไม่ได้อ่านข้อความในเว็บบอร์ดนี้ ถ้าคุณต้องการความช่วยเหลือสำหรับปัญหาที่มีใน iTunes Store, คุณจะต้องติดต่อกับพวกเขาผ่านทางแบบฟอร์มเว็บนี้:
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    Striving is without limit!

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    I am very appreciate for your kingly help!Thanks again!
    EnquanLi
    China
    Striving is without limit!

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