Newbie clustering question / multicasting

Hi,
          Wondering if anybody can point me in the right direction. I want to run
          Weblogic in a cluster. My sticking point seems to be the multicasting
          aspect. I have three boxes with 192.168.1.xxx address. They connect to a
          Netopia SDSL router so I can connect to the Internet. I have 1 WAN IP and 2
          useable public IPs so I can map each of the three IPs to each of my three
          boxes. Been trying to read up on multicasting. From weblogic documentation
          I need a multicast address. Is it correct that this address would be the
          address of my router? But I don't think my router supports multicasting
          since it's just a cheap dsl router. Is there anything I can do to get
          around this problem?
          Thanks.
          

Correction to my previous post. The multicast addresses can only be in the
          range 224.0.0.1 to 239.255.255.255. The 192.168.1.xxx addresses are fine for
          the machines.
          Giri
          "Giri Alwar" <[email protected]> wrote in message
          news:[email protected]...
          > The multicast address is not the address of the router - rather it is a
          > separate address that is reserved exclusively for the servers in the
          cluster
          > to talk to each other to send out heartbeats, announce JNDI bindings etc.
          > Pick an address (a 192.168.1.xxx address will do fine) that is not used
          for
          > any other purpose and assign it as the multicast address. There is also a
          > utility from weblogic to test if multicast is working correctly before you
          > start the individual servers in the cluster. Refer to the documentation.
          > Giri
          >
          > "Tinou" <[email protected]> wrote in message
          > news:[email protected]...
          > > Hi,
          > >
          > > Wondering if anybody can point me in the right direction. I want to run
          > > Weblogic in a cluster. My sticking point seems to be the multicasting
          > > aspect. I have three boxes with 192.168.1.xxx address. They connect to
          a
          > > Netopia SDSL router so I can connect to the Internet. I have 1 WAN IP
          and
          > 2
          > > useable public IPs so I can map each of the three IPs to each of my
          three
          > > boxes. Been trying to read up on multicasting. From weblogic
          > documentation
          > > I need a multicast address. Is it correct that this address would be
          the
          > > address of my router? But I don't think my router supports multicasting
          > > since it's just a cheap dsl router. Is there anything I can do to get
          > > around this problem?
          > >
          > > Thanks.
          > >
          > >
          > >
          >
          >
          

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    As a newbie to SOA, I am trying to wrap my head around the question of how app. development for SOA differs from traditional models. For example, non-SOA environments there are few external considerations when coding a process,
    but in SOA environments, I understand everything is a service.
    Can someone provide a few code snippets as to how they would look in each environment?
    I have read through several documents on SOA and have done the SOA tutorial, etc. but I have yet to see a side-by-side comparison of application code in SOA and non-SOA environments.
    How would an architect plan the translation and mapping of business objectives and functional requirements into a technical solution for SOA, architecting the SOA solution ?
    I would really appreciate any pointers (links to articles, etc.) in this direction. Thank you.
    Gordon

    Hello Gordon,
    SOA (Service Oriented Architecture) - as the name indicates, it's design is based on services. SOA is another integration technique which is used for small scale integration. SOA is an approach to have software resources in an enterprise available and discoverable on network as well defined services. Each service would achieve a predefined business objective and perform discrete units of work. The services are independent and do not depend on the context or state of the other services. They work within distributed systems architecture.
    Few links which may help you in understanding SOA and it's design patterns -
    http://blogs.oracle.com/jeffdavies/2008/10/architects_dictionary.html
    http://www.oracle.com/technology/tech/soa/mastering-soa-series/part1.html
    http://www.oracle.com/technology/tech/soa/mastering-soa-series/part2.html
    http://www.oracle.com/technology/tech/soa/mastering-soa-series/part3.html
    http://www.oracle.com/technology/tech/soa/mastering-soa-series/part4.html
    http://www.oracle.com/technologies/soa/docs/soa-bp-design-patterns-whitepaper.pdf
    http://www.oracle.com/technology/pub/articles/erl_soa_design_patterns_app_sequences.html
    http://www.oracle.com/technology/oramag/oracle/09-sep/o59architect.html
    http://www.oracle.com/technology/pub/articles/tech_arch.html#soa
    Regards,
    Anuj

  • Newb HD questions...?

    I'm a newb to HD and we've just got funding for a HD camera. The boss bought a Panasonic AG-HMC150P.
    The question is about recording mode, in "p" or "i". Currently it is set for 1080/60i, its top setting. But it has a 1080/30p too.
    Our products will be made to view on a TV screen ntsc, and a computer screen.
    Is the "i" setting the best for us? ie: is there any advantage in us using the 30p setting?
    Also, I have FCP6 and a colleague has FCP5 on a less powerful machine.
    Whats the best way to hand him newly captured HD footage? Is it to render it out using H264 on my machine before passing it over?
    We are hoping funding for software upgrade/machine will come soon for him.

    Well, the short answer is "i" (interlaced) is only for display on older CRT "tube" televisions. "p" (progressive) is for display on computers and flat screen televisions. Typically you should try to stay progressive these days. 60i can be useful if you are going to slow-mo any shoots.
    Do NOT convert your files to H.264 to send to another edit. H.264 is not a good codec for editing, use it for distribution of edited material only.
    For sharing with FCP5 on a slower computer, consider using DVCProHD.

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