Dynamically switch back-end servers...

Hi, ours is a middleware layer that connect directly to back-end systems. There
is a new layer coming in between our layer and one of our back end system. I want
to device a system that will skipp this layer and directly start communicating
to the back-end programatically. That is at run time without getting the servers
down and changing the configuration to send to the back end system straight.
One way of doing this is shared memory where it read a value and depending on
this value set will route requests thru this new layer or directly send it to
backend. My only concern is, under high load conditions multiple processes of
the same server instance will keep on accessing this value. May be there are lot
other ways of doing this programmatically.
I want to know if there is any other way of doing this in the tuxedo environment?
thanks,
Sachin.Rane

Hi Sachin,
You don't give details of your configuration (i.e. SSSQ or MSSQ) but perhaps the
following will work:
Include an additional service that is unique to your server (e.g. "ADMIN<servername>")
and when you want to switch make a call to that service (using ud32, or write
your own client). In this way the server will only act on receiving the message,
and will not have to keep checking shared memory.
Let us know if this solves your problem - if not please describe the situation
in more detail (for example, is the additional layer Tuxedo-based? etc.).
Malcolm.
"Sachin Rane" <[email protected]> wrote:
>
My requirements is not this. I want skip this layer between my layer
and backend
when I want to. It is not as if I want to switch at start up if I am
not able
to connect but to change the connection when I want to and no longer
use it again.
"roopesh" <[email protected]> wrote:
You can put the logic inside tuxedo servers tpsvrinit function
to dynamically connect to the backend and when connection fails
then it will retry for a specified no of times to that backend
before taking connections to the backup database.
"Sachin Rane" <[email protected]> wrote:
Hi, ours is a middleware layer that connect directly to back-end systems.
There
is a new layer coming in between our layer and one of our back end
system.
I want
to device a system that will skipp this layer and directly start communicating
to the back-end programatically. That is at run time without getting
the servers
down and changing the configuration to send to the back end systemstraight.
One way of doing this is shared memory where it read a value and depending
on
this value set will route requests thru this new layer or directlysend
it to
backend. My only concern is, under high load conditions multiple processes
of
the same server instance will keep on accessing this value. May bethere
are lot
other ways of doing this programmatically.
I want to know if there is any other way of doing this in the tuxedo
environment?
thanks,
Sachin.Rane

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Hey Guys,
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Robert

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/ NIS can be enabled as per your requirement on any one of the TMG.
Additional to It
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Hope this helps
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1) Single Armed TMG server
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Thanks,
Robert
Robert

Lync 2013 updating databases after updating Front End servers

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Hi Logan Burt,
Central Management store database files
Data file or log purpose
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Transaction log file for the Central Management store
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Location Information service data file
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Transaction log for the Location Information service data file
And you could verify if Lync Server 2013 database updates have completed successfully.
How to Verify if Lync Server 2013 Database Updates Completed Successfully
http://blogs.technet.com/b/dodeitte/archive/2013/07/02/how-to-verify-if-lync-server-2013-database-updates-completed-successfully.aspx
Best regards,
Eric

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Aaaarggh.

Hi Fredd,
Thanks for the post and welcome to the forum.
BT will only start charging you for service once the service is activated, so there is definitely some confusion here.
Please drop me an email to [email protected], please include your BT account details and the link to this post. Once I have your details I will check the order from my end to see what is going on.
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BTCare Community Manager
If we have asked you to email us with your details, please make sure you are logged in to the forum, otherwise you will not be able to see our ‘Contact Us’ link within our profiles.
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I call again, Oh sorry this will take 3 days, 3 days pass nothing.
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Wondering what went wrong with human communication?

Thank you, I have emailed you with details.
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UPDATE AT 21:27 23rd March
I have just spoken to another person in faults.
They tell me our system does not support CALL SIGN so you can't have it!!!!
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Wondering what went wrong with human communication?

Can you switch back between CS5 and CS5.5 with the same project with Premiere??

Hey all,
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Because it has to create a new "version" of your project every time you go back and forth, you'll end up with umpteen versions if you go back and forth every time which could become a nightmare for you... And because it creates new "versions" every time, you're far more likely to end up with a corrupted file at some point... I'd stay away of going back and forth between versions...
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My iMac20 powers off by itself and won't switch back on

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So, Saturday the 11th of July arrives and I head back to the Genius Bar for my free appointment. I explained to a very helpful guy that this is my fifth visit and I would like to get to the bottom of the problem. He referred to the tech person who dealt with the original workshop repair and she came out to explain that the issue is caused by 'something' lurking in my Library folder and that if I wipe my hard drive and re-install the OS from scratch but without the Library folder, the problem should be solved.
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,

Amsys plc, the company Apple uses for off-site repairs returned my iMac20 today and the accompanying advice note states that the fault was resolved by replacing the power supply unit. I am really grateful to Apple for finally getting to the bottom of the problem, particularly as the repair was done free of charge, although I had already paid £49 for a useless workshop investigation at the Kingston store. The service given by Amsys was exemplary... the collection and return of the machine was carried out at the times promised and whenever I contacted the company by phone, each person I spoke to seemed to have knowledge of the repair without having to refer to the case notes (and none of the 'press 1 for service, 2 for sales...' rubbish).
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Hello there, I am creating a database of all our companies press contacts. I would like to create a form that would act as the front end and feed the database which is obviously the back end. The database is in Access 2013. My question is to whether this

Hello there, I am creating a database of all our companies press contacts. I would like to create a form that would act as the front end and feed the database which is obviously the back end. The database is in Access 2013. My question is to whether this is indeed possible?

This forum thread appears to point towards the problem.
Re: Unable to Switch Audio Sync Settings

Front-end/back-end cluster question

[att1.html]


Patrick Power wrote:
          > Thanx for your reply Prasad. I was surprised none of the Bea engineers
          > wished to touch this one. What do you suppose is up with that? Either
          > they are too busy, or possibly my question is too dumb.
          >
          I am from BEA so its not that we are not responding ;).
          >
          > Back to the issue: Yes, we will NES bridge/proxy into servlet front-end
          > cluster, potentially with Directors on the very front of the topology for
          > balancing. Your diagram as such:
          >
          > <Netscape/IIS/Apache/WLS FRONT END> ----- <CLUSTER OF WEBLOGIC SERVER
          > > SERVING SERVLETS> --- <CLUSTER OF WEBLOGIC SERVERS SERVING EJB>
          >
          > 1) Does <Netscape/IIS/Apache/WLS FRONT END> mean NES with proxy shared lib,
          > with a WLS service definition into cluster in obj.conf? I assume yes.
          Yes.
          >
          > 2) I would assume that <CLUSTER OF WEBLOGIC SERVERS SERVING SERVLETS> would
          > need the WLS HttpClusterServlet to the <CLUSTER OF WEBLOGIC SERVERS SERVING
          > EJB> all the way in the back.
          No. I was splitting presentation logic (namely servlets and jsp) and business
          logic (ejb) into two layers. Again you don't have to split it into two. You can
          colocate them both together. You could use NES or IIS or Apache or WLS. You
          don't need HttpClusterServlet.
          Lets get this straight.
          1. You need our proxy plugin for failover and to load balance the request that
          are going to presentation logic.
          2. From presentation logic layer, when you talk to backend business logic
          providers (like ejb cluster), if you use stateless session beans we provide
          failover and load balancing. In future we will support clustered stateful
          session beans as well. Therefore you don't need load balancer here.
          3. HttpClusterServlet should run only in front of presentation logic cluster and
          also it supports http only.
          Hope this helps.
          - Prasad
          > The NES proxy would only proxy into the f/e
          > cluster, right? You're not suggesting an external proxy of some type, are
          > you? The HttpClusterServlet is for WLS cluster-to-cluster proxies.
          > 3) A load balancer between the wls f/e and wls b/e clusters? That doesn't
          > seem applicable here. Once again, it should be HttpClusterServlet for WLS
          > cluster-to-cluster proxies.
          > 4) "use two or three proxy servers to avoid single point of failure."
          > Hmmm, once again - are we talking the WLS HttpClusterServlet proxy? Well,
          > that's the inital question: Can I have more than one HttpClusterServlet
          > proxy in the front-end cluster, proxying to the back-end cluster?
          > Otherwise, internally from this WLS architecture perspective, it is a single
          > point of failure.
          >
          > An example: 10 instances in f/e cluster. can more than one of these
          > instances have the WLS HttpClusterServlet proxy to the b/e cluster? Or, are
          > there instances of WLS HttpClusterServlet proxy in all 10 f/e cluster
          > instances?
          >
          > Cheers, Pat
          >
          > Prasad Peddada <[email protected]> wrote in message
          > news:[email protected]...
          > >
          > >
          > > Patrick Power wrote:
          > >
          > > > I know that this topic was addressed to some degree here in an earlier
          > > > posting, but I still have a question regarding the architecture
          > > > design:
          > > >
          > > > If configuring a front-end cluster for servlets/sessions and a
          > > > back-end cluster for remote services -- you route requests to the
          > > > back-end using the WLS proxy servlet. ok, got that part.
          > >
          > > Not quite. The typical scenario is
          > >
          > > <Netscape/IIS/Apache/WLS FRONT END> ----- <CLUSTER OF WEBLOGIC SERVER
          > > SERVING SERVLETS> --- <CLUSTER OF WEBLOGIC SERVERS SERVING EJB>
          > >
          > > You don't proxy and serve servlets from the same server.
          > >
          > > >
          > > > The question: Is there a single instance of the wls proxy servlet in
          > > > the front-end cluster? Or, is it on every instance in the front-end
          > > > cluster? What is the failover mechanism, in the case of a single
          > > > instance of proxy servlet in the f-e cluster failing?
          > >
          > > To prevent that you need to use some kind of h/w or software load
          > > balancer and then use two or three proxy servers to avoid single point
          > > of failure.
          > >
          > > > Is it a single point of failure between the 2 clusters?
          > > >
          > > > Thanx in advance for your help.
          > > >
          > > > BTW, I think Wei, Kumar and the other Bea folks cruising this group
          > > > have been doing a bang-up job of providing badly-needed detail on this
          > > > subject area - material this largely absent from the documentation.
          > > > Good job.
          > > >
          > > >
          > >
          > > --
          > > Cheers
          > >
          > > - Prasad
          > >
          > >

SQL Express LocalDB as Back-end for MS Access

Can a MS Access front-end database be connected to the new SQL Express LocalDB backend on the same machine?
If the answer is YES, where do I find information about the driver/connection string?
This is what I’m trying to accomplish. I have a project that uses MS Access to collect data using stationary PCs located far from the actual data collection site. The use of Tablet PCs with the use of wireless network has been suggested to make data entry
more efficient so data collection is done at the point of inspection. The problem is that MS Access was not build to transmit data/be used in a wireless network environment, so my idea was to use the same MS Access front end (to save time by not building anther
FE and keep same interface for user) with a LocalDB as back end on the Tablet PC and have the LocalDB either at time interval send the data to synch to a network replica backend for everybody use.
If answer is NO, suggest a feasible approach with any other product of way to accomplish this data transmission.
Just so this post question is clearer a SQL Server is not be permitted in this site.
Thanks
IB_4

Hi,
These threads may be helpful:
Using SQL Server LocalDB and Access across servers and platforms
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/5fed23bd-5f2f-4dfa-a7d2-66ce5874f333/using-sql-server-localdb-and-access-across-servers-and-platforms
Link Access 2013 To SQL Server LocalDB Tables
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/a05b7650-3ab5-4b3e-beb1-2094336c589c/link-access-2013-to-sql-server-localdb-tables
Meanwhile, your question is related to Access database. I would suggest you initial a new thread in Access forum for dedicated support.
http://social.msdn.microsoft.com/Forums/office/en-US/home?forum=accessdev
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
Tracy Cai
TechNet Community Support

An add-on to force firefox switch back to default search engine in search bar

Hi,
I have a couple search engines installed in firefox's search bar. I find it extremely annoying that each time I change the search engine it remains like that even after restarting firefox. Is there any add-on that would switch back to the one that is on the top of the list (which happens to be my default search engine for navigation bar as well) every time I restart the browser?
Let me give you an example: I use duckduckgo as a default search engine for the nav bar and in the search bar. Let's say I need to find a definition for which I use wikipedia search engine. I switch to wikipedia one then. I turn off the browser and the next time I start firefox the search engine that appears in the search bar is wikipedia and I would prefer it to be duckduckgo.
I hope it isn't to vague.
cheers,
Omen

Easiest is to set the preferred default engine to the preferred search engine via the user.js file in the Firefox profile folder by copying the related user_pref() line to this file.
The user.js file is read each time Firefox is started and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.
You can search the <b>about:config</b> page for browser.search. to locate the pref(s) that you need.
*user_pref("browser.search.defaultenginename", "Google");
You can use this button to go to the currently used Firefox profile folder:
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
* Create the chrome folder (lowercase) in the <xxxxxxxx>.default profile folder if this folder doesn't exist
* Use a plain text editor like Notepad to create a (new) user.js file in this folder (the names are case sensitive)
* Make sure that you select "All files" and not "Text files" when you save the file via "Save file as" in the text editor as user.js<br />Otherwise Windows may add a hidden .txt file extension and you end up with a not working user.js.txt file
* http://kb.mozillazine.org/user.js_file

Dynamically binding backing bean

Dynamic binding of backing bean
Here is a problem that I have been trying to solve. Maybe someone can have a go at it:
Here is a Search form(Simplified version):
af:selectOneChoice - to choice a 'class family' e.g., companies, NGO, charity, institution etc
af:inputText - to enter a name
af:commandButton – to search
Here is a User task:
1.     Choose a 'class family' from the selectOneChoice
2.     Enter a name in inputText
3.     Click commandButton to start the search
Additional information
1. The number of 'class family' is about 30 and requires different method of search.
2. I want to use a uniform search user interface and so there is only one page for all.
3. Each 'class family' has it own managed bean in face-config.xml.
Scenario:
Lets say the searchUI.jsp has an initial backing bean called SearchBean.java. The af:selectOneChoice in searchUI.jsp has a valueChangeListener and when the user chooses a 'class family' at step (1), the valueChangeListener in SearchBean.java is triggered.
Problem:
The problem is how do I dynamically switch the backing beans, say from SearchBean.java to SearchCompanyBean.java so that when the user next click the search commandButton, it is the searchAction method in the SearchCompanyBean.java and NOT the initial SearchBean.java that handles the action.
Cheers in advance.

Hi,
Assuming you are using ADF BC, have a look at using view criteria. You can define, dynamically apply and remove view criteria on the view object.
Have a look at the help on oracle.jbo.ViewCriteria and applyViewCriteria from the ViewObject implementation class. Sounds like they might meet your requirements.
Create a client method on your VO and drag it onto your page as an ADF parameter form and go from there.
Brenden

Dynamically switch back-end servers...

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