Single point of entry to apex app

Hi,
I understand there is a feature in apex where we can lock down the application entry point to a particular page. E.g. all requests to my app should come from http://server:port/entrypage.
I looked everywhere within the toolset for this feature, but didn't find anything like it. Is such a feature really available? Can someone me in the right direction if so?
Thanks.
Shuba

Here ya go, It is called deep linking:
How to disable "deep linking" feature?

Similar Messages

Securing single point of entry doc-lit web services

I am designing doc-lit web services with a single point of entry, but the doc can contain requests of various types, with varying levels of authorization on the 'methods' being called by the web service as a result of the passed requests. I'm looking for a standards-compliant means of accomplishing this, or at least some method that will not be insanely difficult to move to a standards-based security implementation when they become available. I do not want to use SSL/TLS, but do want to stick to standards including WS-Security, XML-Encryption and XML-DSig. I would also like to use OID/SSO with certificate-based authentication.
What are my options as far as existing tools, techniques, etc for this in a Java/Oracle environment? Is there anything in Oracle BPEL that could help me in this quest?
Appreciate any advice, pointers, shared experiences, etc on this - I'm a little lost in the trees right now!
Thanks Much,
Jim Stoll

Eric - appreciate the tip. The link to the JDev files for the OBE article doesn't work though (ie, in the article, there is a link to download the source for the project) - is there an alternate way that I could get hold of that code? Even something as simple as someone emailing it to me would work - I desperately need to move forward on this stuff. (There's another sample at http://www.oracle.com/technology/products/jdev/101/howtos/securews/index.html, but that one throws exceptions and I can't seem to get any help on it via the forum or Oracle Support, either...)
Thanks for your assistance!
Jim

How do you get a single point of entry to all ocs applications?

Hi,
I have a single node installation of oracle collaboration suite.
The main homepage for the site is as follows:
http://hostname.domain:7779
Now further to this i can access files or mail or search with the folliwing url's:
http://hostname.domain:7779/files/app
http://hostname.domain:7779/um/traffic_cop
http://hostname.domain:7779/files/app/ultrasearch
However once I am logged in, and I try to access each of these urls I alwayshave to login , ie provide a username and password. How can I access all these applications without having to log in again and again??? The user I am using is obiviously one created using the oid from the following url
http://hostname.domain:7778/oiddas
Do i need to configure my ocs user any further? I would appreciate any help on this
Naqi

u have to configer the portal get back to configration hand book and it will work just fine

Is a cluster proxy a single-point-of-failure?

Our group is planning on configuring a two machine cluster to host
          servlets/jsp's and a single backend app server to host all EJBs and a
          database.
          IIS is going to be configured on each of the two cluster machines with a
          cluster plugin. IIS is being used to optimize performance of static HTTP
          requests. All servlet/jsp request would be forwarded to the Weblogic
          cluster. Resonate's Central Dispatch is also going to be installed on the
          two cluster machines. Central Dispatch is being used to provide HTTP
          request load-balancing and to provide failover in case one of the IIS
          servers fails (because the IIS process fails or the cluster machine it's on
          fails).
          Will this configuration work? I'm most concerned about the failover of the
          IIS cluster proxy. If one of the proxies is managing a sticky session (X),
          what happens when the machine (the proxy is on) dies and we failover to the
          other proxy? Is that proxy going to have any awareness of session X?
          Probably not. The new proxy is probably going to believe this request is
          new and forward the request to a machine which may not host the existing
          primary session. I believe this is an error?
          Is a cluster proxy a single-point-of-failure? Is there any way to avoid
          this? Does the same problem exist if you use Weblogic's HTTP server (as the
          cluster proxy)?
          Thank you.
          Marko.


We found our entity bean bottlenecks using JProbe Profiler. It's great for
          watching the application and seeing what methods it spends its time in. We
          found an exeedingly high number of calls to ejbLoad were taking a lot of
          time, probably due to the fact that our EBs don't all have bulk-access
          methods.
          We also had to do some low-level method tracing to watch WebLogic thrash EB
          locks, basically it locks the EB instance every time it is accessed in a
          transaction. Our DBA says that Oracle is seeing a LOT of lock/unlock
          activity also. Since much of our EB data is just configuration information
          we don't want to incur the overhead of Java object locks, excess queries,
          and Oracle row locks just to read some config values. Deadlocks were also a
          major issue because many txns would access the same config data.
          Our data is also very normalized, and also very recursive, so using EBs
          makes it tricky to do joins and recursive SQL queries. It's possible that we
          could get good EB performance using bulk-access methods and multi-table EBs
          that use custom recursive SQL queries, but we'd still have the
          lock-thrashing overhead. Your app may differ, you may not run into these
          problems and EBs may be fine for you.
          If you have a cluster proxy you don't need to use sticky sessions with your
          load balancer. We use sticky sessions at the load-balancer level because we
          don't have a cluster proxy. For our purposes we decided that the minimal
          overhead of hardware ip-sticky session load balancing was more tolerable
          than the overhead of a dog-slow cluster proxy on WebLogic. If you do use the
          proxy then your load balancer can do round-robin or any other algorithm
          amongst all the proxies.
          Marko Milicevic <[email protected]> wrote in message
          news:[email protected]...
          > Sorry Grant. I meant to reply to the newsgroup. I am putting this reply
          > back on the group.
          >
          > Thanks for your observations. I will keep them all in mind.
          > Is there any easy way for me to tell if I am getting acceptable
          performance
          > with our configuration? For example, how do I know if my use of Entity
          > beans is slow? Will I have to do 2 implementations? One implementation
          > using entity beans and anther implementation that replaces all entity use
          > with session beans, then compare the performance?
          >
          > One last question about the cluster proxy. You mentioned that you are
          using
          > Load Director with sticky sessions. We too are planning on using sticky
          > sessions with Central Dispatch. But since the cluster proxy is stateless,
          > does it matter if sticky sessions is used by the load balancer? No matter
          > which cluster proxy the request is directed to (by load balancing) the
          > cluster proxy will in turn redirect the request to the correct machine
          (with
          > the primary session). Is this correct? If I do not have to incur the
          cost
          > of sticky sessions (with the load balancer) I would rather avoid it.
          >
          > Thanks again Grant.
          >
          > Marko.
          > .
          >
          > -----Original Message-----
          > From: Grant Kushida [mailto:[email protected]]
          > Sent: Monday, May 01, 2000 5:16 PM
          > To: Marko Milicevic
          > Subject: RE: Is a cluster proxy a single-point-of-failure?
          >
          >
          > We haven't had too many app server VM crashes, although our web server
          > typically needs to be restarted every day or so due to socket strangeness
          or
          > flat out process hanging. Running 2 app server processes on the same box
          > would help with the VM stuff, but remember to get 2 NICs, because all
          > servers on a cluster need to run on the same port with different IP addrs.
          >
          > We use only stateless session beans and entity beans - we have had a
          number
          > of performance problems with entity beans though so we will be migrating
          > away from them shortly, at least for our configuration-oriented tables.
          > Since each entity (unique row in the database) can only be accessed by one
          > transaction at a time, we ran into many deadlocks. There was also a lot of
          > lock thrashing because of this transaction locking. And of course the
          > performance hit of the naive database synching (read/write for each method
          > call). We're using bean-managed persistence in 4.5.1, so no read-only
          beans
          > for us yet.
          >
          > It's not the servlets that are slower, it's the response time due to the
          > funneling of requests through the ClusterProxy servlet running on a
          WebLogic
          > proxy server. You don't have that configuration so you don't really need
          to
          > worry. Although i have heard about performance issues with the cluster
          proxy
          > on IIS/netscape, we found performance to be just fine with the Netscape
          > proxy.
          >
          > We're currently using no session persistence. I have a philosophical issue
          > with going to vendor-specific servlet extensions that tie us to WebLogic.
          We
          > do the session-sticky load balancing with a Cisco localdirector, meanwhile
          > we are investigating alternative servlet engines (Apache/JRun being the
          > frontrunner). We might set up Apache as our proxy server running the
          > Apache-WL proxy plugin once we migrate up to 5.1, though.
          >
          > > -----Original Message-----
          > > From: Marko Milicevic [mailto:[email protected]]
          > > Sent: Monday, May 01, 2000 1:08 PM
          > > To: Grant Kushida
          > > Subject: Re: Is a cluster proxy a single-point-of-failure?
          > >
          > >
          > > Thanks for the info Grant.
          > >
          > > That is good news. I was worried that the proxy maintained
          > > state, but since
          > > it is all in the cookie, then I guess we are ok.
          > >
          > > As for the app server, you are right. It is a single point
          > > of failure, but
          > > the machine is a beast (HP/9000 N-class) with hardware
          > > redundancy up the
          > > yin-yang. We were unsure how much benefit we would get if we
          > > clustered
          > > beans. There seems to be a lot of overhead associated with
          > > clustered entity
          > > beans since every bean read includes a synch with the
          > > database, and there is
          > > no fail over support. Stateful session beans are not load
          > > balanced and do
          > > not support fail over. There seems to be real benefit for
          > > only stateless
          > > beans and read-only entities. Neither of which we have many
          > > of. We felt
          > > that we would probably get better performance by locating all
          > > of our beans
          > > on the same box as the data source. We are considering creating a two
          > > instance cluster within the single app server box to protect
          > > against a VM
          > > crash. What do you think? Do you recommend a different
          > > configuration?
          > >
          > > Thanks for the servlet performance tip. So you are saying
          > > that running
          > > servlets without clustering is 6-7x faster than with
          > > clustering? Are you
          > > using in-memory state replication for the session? Is this
          > > performance
          > > behavior under 4.5, 5.1, or both? We are planning on
          > > implementing under
          > > 5.1.
          > >
          > > Thanks again Grant.
          > >
          > > Marko.
          > > .
          >
          >
          > Grant Kushida <[email protected]> wrote in message
          > news:[email protected]...
          > > Seems like you'll be OK as far as session clustering goes. The Cluster
          > > proxies running on your IIS servers are pretty dumb - they just analyze
          > the
          > > cookie and determine the primary/secondary IP addresses of the WebLogic
          > web
          > > servers that hold the session data for that request. If one goes down
          the
          > > other is perfectly capable of analyzing the cookie too. As long as one
          > proxy
          > > and one of your two clustered WL web servers survives your users will
          have
          > > intact sessions.
          > >
          > > You do, however, have a single point of failure at the app server level,
          > and
          > > at the database server level, compounded by the fact that both are on a
          > > single machine.
          > >
          > > Don't use WebLogic to run the cluster servlet. It's performance is
          > > terrible - we experienced a 6-7x performance degredation, and WL support
          > had
          > > no idea why. They wanted us to run a version of ClusterServlet with
          > timing
          > > code in it so that we could help them debug their code. I don't think
          so.
          > >
          > >
          > > Marko Milicevic <[email protected]> wrote in message
          > > news:[email protected]...
          > > > Our group is planning on configuring a two machine cluster to host
          > > > servlets/jsp's and a single backend app server to host all EJBs and a
          > > > database.
          > > >
          > > > IIS is going to be configured on each of the two cluster machines with
          a
          > > > cluster plugin. IIS is being used to optimize performance of static
          > HTTP
          > > > requests. All servlet/jsp request would be forwarded to the Weblogic
          > > > cluster. Resonate's Central Dispatch is also going to be installed on
          > the
          > > > two cluster machines. Central Dispatch is being used to provide HTTP
          > > > request load-balancing and to provide failover in case one of the IIS
          > > > servers fails (because the IIS process fails or the cluster machine
          it's
          > > on
          > > > fails).
          > > >
          > > > Will this configuration work? I'm most concerned about the failover
          of
          > > the
          > > > IIS cluster proxy. If one of the proxies is managing a sticky session
          > > (X),
          > > > what happens when the machine (the proxy is on) dies and we failover
          to
          > > the
          > > > other proxy? Is that proxy going to have any awareness of session X?
          > > > Probably not. The new proxy is probably going to believe this request
          > is
          > > > new and forward the request to a machine which may not host the
          existing
          > > > primary session. I believe this is an error?
          > > >
          > > > Is a cluster proxy a single-point-of-failure? Is there any way to
          avoid
          > > > this? Does the same problem exist if you use Weblogic's HTTP server
          (as
          > > the
          > > > cluster proxy)?
          > > >
          > > > Thank you.
          > > >
          > > > Marko.
          > > > .
          > > >
          > > >
          > > >
          > > >
          > > >
          > > >
          > >
          > >
          >
          >

Duplicate Entries in APEX Report

Hello everyone,
I'm generating an APEX report that selects records and the user assigned to them. The records are all unique in the main table, but I have to link 4 different tables together to get all the information I need. In one of the tables, there are many different entries referencing the same CallID. This is causing my report to display all of those entries, even though they are duplicates on the report. Is there a way to make that column in the table unique, or prevent the entries from appearing multiple times?
I've tried using the Group By statement, but I get this error "ORA-00979: not a GROUP BY expression".
Thanks.

Hi,
It would depend on what data you actually want to end up with. If the information in each record on the final table is unique apart from the CallID value, then you will end up with "duplicates" of the data in the other three tables. If you think of a simplified version of this, you have a parent/child relationship between the tables - looking at things from the child table's point of view, several child records may have the same parent. Therefore, if you create a report that includes ALL details from ALL tables, then you will see the parent's information displayed for each child.
So, if you only want to see one parent's information regardless of the number of child records you have, you either have to combine the child records into a single value or use the Apex report's "Break Formatting" functionality (shown at the bottom of the report's Report Attributes tab). Using the GROUP BY within the SQL statement would normally require you to use an aggregation function to return a single value from the child table - for example, MAX(), MIN(), SUM(), COUNT() etc. If you didn't want to aggregate data, you could use DISTINCT instead (as in SELECT DISTINCT fieldlist FROM tables) but this will only remove duplicate records where ALL values in ALL columns matched.
So, it does depend on the data itself and how you want to display it.
Andy

Consuming RESTful web service in Apex app

Hi,
I have created a RESTful Web service through an Apex application (4.0) and published as a public web service. Can someone point me to an example of how to then consume that service in another Apex app? The output is straightforward XML that I can retrieve just by pointing the browser to the URL of the service created, but when I go to create the REST Web Reference for the receiving application, I am not sure what to put for the Response Xpath or Response Namespace. The service is meant to just return report records that were created in the REStful Web service with no input required.
The service XML looks like this:
<ROWSET>
<ROW>
<PROJ_ID>132</PROJ_ID>
<PSL_NETID>xxxxxxxx</PSL_NETID>
<PROJECT_TITLE>11g- Oracle Upgrade to RAC 11g</PROJECT_TITLE>
<CUSTOMER>OIT</CUSTOMER>
<DIVISION>EIS</DIVISION>
</ROW>
<ROW>
<PROJ_ID>132</PROJ_ID>
<PSL_NETID>xxxxxx</PSL_NETID>
<PROJECT_TITLE>11g- Oracle Upgrade to RAC 11g</PROJECT_TITLE>
<CUSTOMER>OIT</CUSTOMER>
<DIVISION>CSS</DIVISION>
Any help would be appreciated.
Thanks,
Pat
Edited by: patfmnd on Dec 7, 2012 3:04 AM

Hi,
I have made progress in this. I created the RESTful report service in an Apex 4.1 application. (previous attempt was with 4.0 version of Apex)
I then created a separate application and created a RESTful web service reference that I tested and it was successful in bringing up XML. However in Apex 4.1, when I create a report following the Wizard for creating a report based on that Web service reference I get the error: ORA-31013: Invalid XPATH expression Which I don't know how to get past. The Xpath provided in the Web service reference test gave output below and brought back a result. There was no where during the Report creation to provide an Xpath. Am I missing something or is 4.1 not quite Web service ready??
This is what I get from the test of the Web service reference in the Apex App from which I want to create a report: (I see in this XML the data I was expecting from the test of the RESTful web service but it looks like the output I get from the Web service test is more like the Report xml itself.)
<!DOCTYPE html> <html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:htmldb="http://htmldb.oracle.com" xmlns:apex="http://apex.oracle.com"> <head> <title>Author</title>
 <script type="text/javascript">
//<![CDATA[
var apex_img_dir = "/i/", htmldb_Img_Dir = apex_img_dir;
//]]>
</script>
<script src="/i/javascript/apex_4_1.min.js" type="text/javascript">
</script>
<script type="text/javascript">
//<![CDATA[
apex.security.framebreaker("D");
//]]>
</script>

<form action="wwv_flow.accept" method="post" name="wwv_flow" id="wwvFlowForm"><input type="hidden" name="p_flow_id" value="140" id="pFlowId" /><input type="hidden" name="p_flow_step_id" value="1" id="pFlowStepId" /><input type="hidden" name="p_instance" value="6146802068150520" id="pInstance" /><input type="hidden" name="p_page_submission_id" value="1940235134399423" id="pPageSubmissionId" /><input type="hidden" name="p_request" value="" id="pRequest" />
<div id="header">
<div id="app-logo"><a href="f?p=140:1:0"></a></div>
<div id="navbar">
<div class="navbar-entry">Logout</div>
</div>
</div>
<div id="tabs">
<div class="frame">
<div class="bg">
<div class="tab-holder">
<div class="first-current">
<div><span>Author</span></div>
</div>
</div>
</div>
</div>
</div>
<div id="topbar">
<div class="breadcrumb-region" id="R170908223330421512">
<div>
<div id="breadcrumbs">
<ul class="breadcrumb-list">
<li class="current">Author</li>
</ul>
</div>
</div>
</div>
</div>
<div id="messages"></div>
<div id="body">
<table class="tbl-body" cellspacing="0" cellpadding="0" border="0" summary="">
<tbody>
<tr>
<td class="tbl-main" width="100%">
<div class="rounded-corner-region" id="books">
<div class="rc-blue-top">
<div class="rc-blue-top-r">
<div class="rc-title">AUTHOR</div>
<div class="rc-buttons"><button value="Reset" class="button-gray" type="button" id="B170907622885421490"><span>Reset</span></button></div>
</div>
</div>
<div class="rc-body">
<div class="rc-body-r">
<div class="rc-content-main">
<table id="apex_layout_170907030238421484" border="0" class="formlayout" summary="" role="presentation" datatable="0">
<tr>
<td align="right"><label for="P1_REPORT_SEARCH" tabindex="999"><a class="optional-w-help" href="javascript:popupFieldHelp('170907422375421487','6146802068150520')" tabindex="999">Search</a></label></td>
<td colspan="1" rowspan="1" align="left"><input type="hidden" name="p_arg_names" value="170907422375421487" /><input type="text" id="P1_REPORT_SEARCH" name="p_t01" value="" size="30" maxlength="2000" class="text_field" /></td>
<td align="right"><label for="P1_ROWS" tabindex="999"><a class="optional-w-help" href="javascript:popupFieldHelp('170907508375421490','6146802068150520')" tabindex="999">Display</a></label></td>
<td colspan="1" rowspan="1" align="left"><input type="hidden" name="p_arg_names" value="170907508375421490" /><select name="p_t02" id="P1_ROWS" size="1" class="selectlist">
<option value="10">10</option>
<option value="15" selected="selected">15</option>
<option value="20">20</option>
<option value="30">30</option>
<option value="50">50</option>
<option value="100">100</option>
<option value="200">200</option>
<option value="500">500</option>
<option value="1000">1000</option>
<option value="5000">5000</option>
</select></td>
<td align="left"></td>
<td colspan="1" rowspan="1" align="left"><button value="Go" class="button-gray" type="button" id="P1_GO"><span>Go</span></button></td>
</tr>
</table>
<div id="report_170907030238421484_catch">
<table cellpadding="0" border="0" cellspacing="0" summary="" id="report_books">
<tr>
<td></td>
</tr>
<tr>
<td>
<table cellpadding="0" border="0" cellspacing="0" summary="" class="report-standard">
<tr>
<th id="AUTHORID" class="header">
<div class="rpt-sort">Authorid<img align="absmiddle" src="/i/arrow_up_gray_dark.gif" width="13" height="12" alt="Sort by this column" /></div>
</th>
<th id="LNAME" class="header">
<div class="rpt-sort">Lname</div>
</th>
<th id="FNAME" class="header">
<div class="rpt-sort">Fname</div>
</th>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">A100</td>
<td headers="LNAME" class="data">AUSTIN</td>
<td headers="FNAME" class="data">JAMES</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">A105</td>
<td headers="LNAME" class="data">ADAMS</td>
<td headers="FNAME" class="data">JUAN</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">B100</td>
<td headers="LNAME" class="data">BAKER</td>
<td headers="FNAME" class="data">JACK</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">F100</td>
<td headers="LNAME" class="data">FIELDS</td>
<td headers="FNAME" class="data">OSCAR</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">J100</td>
<td headers="LNAME" class="data">JONES</td>
<td headers="FNAME" class="data">JANICE</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">K100</td>
<td headers="LNAME" class="data">KZOCHSKY</td>
<td headers="FNAME" class="data">TAMARA</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">M100</td>
<td headers="LNAME" class="data">MARTINEZ</td>
<td headers="FNAME" class="data">SHEILA</td>
</tr>
<tr class="highlight-row">
<td headers="AUTHORID" class="data">P100</td>
<td headers="LNAME" class="data">PORTER</td>
<td headers="FNAME" cla
Edited by: patfmnd on Dec 12, 2012 5:59 PM
Edited by: patfmnd on Dec 12, 2012 6:07 PM

APEX app using Oracle Text to index pages that require authorzation

Hi Gurus and APEX Dev team
My team need to develop an APEX App that will index all our documents spread across various servers. Some of the documents require Single sign on access (e.g. KIX.oraclecorp.com) and some require other authorization methods (e.g. Metalink) . The Question is , Is it possible to index the pages that require authorization using Oracle text. If yes How? I have implemented the demo app which can index pages that do not require authorization.
Thanks a million
regards
Bala

Hello,
Unless I misunderstand you, the fact that the pages require authentication doesn't really matter, it is the underlying data you want to index correct? If so then you would index them in exactly the same way that you would index any table data using Oracle Text/interMedia.
John.
Blog: http://jes.blogs.shellprompt.net
Work: http://www.apex-evangelists.com
Author of Pro Application Express: http://tinyurl.com/3gu7cd
REWARDS: Please remember to mark helpful or correct posts on the forum, not just for my answers but for everyone!

How to integrate OMR into Apex app?

Hi guys,
My app would be ideal for OMR data entry. OMR is Optical Mark Recognition. Remember marking answers on tests by coloring in bubbles? That's what I'm talking about. ScanTron is the market leader in the field. Anyway, can anyone share advice about how to integrate OMR into an Apex app?
Thanks,
Kim

Hi,
You can find lot of discussion from this forum how integrate devices like scanner or bar code reader with APEX.
And you might find that HTML and JavaScripts are not best chose to communicate with local devices.
Regards,
Jari

Single points of failure?

So, we are looking into the xServe RAID, and I'd like some insight into making things as bulletproof as possible.
Right now we plan to have:
a load balancer and a failover load balancer (running on cheap BSD hardware, since hardware load balancers are so damned expensive) feeding into
two application servers, which communicate with
one back-end server, which serves as both a database server and an NFS server for the app servers
And the volumes that will be NFS-mounted would be on our xServe RAID, which would be connected directly to the back-end server.
The networking hardware would all be failover through multiple switches and cards and so forth.
The idea here is to avoid as many single points of failure as possible. Unfortunately at the moment we don't have a DBA who is fluent in clustering, so we can't yet get rid of the back-end server as a single point of failure. (Which is also why I'm mounting the RAID on it and sharing via NFS... if the database goes down, it won't matter that the file service is down too.) However, in the current setup, there's one other failure point: the RAID controllers on the xServe RAID.
Performance is less important to us on this than reliability is. We can't afford two RAID units at the moment, but we can afford one full of 500 gig drives, and we really only need about 4 TB of storage right now, so I was thinking of setting up drive 0 on controller 0 and drive 0 on controller 1 as a software RAID mirror, and the same with drive 1, etc. As far as I understand it, this eliminates the RAID controllers as a single point of failure, and as far as I know they are at least supposedly the only single point of failure in the xServe RAID system. (I could also do RAID 10 that way, but due to the way we store files, that wouldn't buy us anything except added complexity.)
And later on, down the road, when we have someone good enough to figure out how to cluster the database, if I understand correctly, we can spend the money get a fibre switch or hub or whatever they call it and mount the RAID on the two (application server) systems that actually use it, thus cutting out the middle man NFS service. (I am under the impression that this sort of volume-sharing is possible via FC... is that correct?)
Comments? Suggestions? Corrections to my misapprehentions?
--Adam Lang

Camelot wrote:
A couple of points.
was thinking of setting up drive 0 on controller 0 and drive 0 on controller 1 as a software RAID mirror, and the same with drive 1, etc.
Really? Assuming you're using fourteen 500GB drives this will give you seven volumes mounted on the server, each a 500GB mirror split on the two controllers. That's fine from a redundancy standpoint, but it ***** from the standpoint of managing seven direct mountpoints on the server, as well as seven NFS shares, and 14 NFS mount points on the clients. Not to mention file allocations between the volumes, etc.
If your application is such that it's easy to dictate which volume any particular file should be on and you don't mind managing all those volumes, go ahead, otherwise consider creating two RAID 5 volumes, one on each controller, using RAID 1 to mirror them on the back-end server and exporting a single NFS share to the clients/front-end servers.
Quite simple, actually. But admittedly, two RAID 5s RAID-1-ed together would be much more efficient, space-wise.
if I understand correctly, we can spend the money get a fibre switch or hub or whatever they call it and mount the RAID on the two (application server) systems that actually use it
Yes, although you'll need another intermediate server as the metadata controller to arbitrate connections from the two machines. It becomes an expensive option, but your performance will increase, as will the ease with which you can expand your storage network (adding more storage as well as more front-end clients).
But then that means that the metadata controller is a single point of failure...?
--Adam Lang

Primary site server a single point of failure?

I'm installing ConfigMgr 2012 R2, and employing a redundant design as much as possible. I have 2 servers, call them CM01,CM02, in a single primary site, and on each server I have installed the following roles: Management Point, Distribution Point, Software
Update Point, as well as the installing the SMS Provider on both servers. SQL is on a 3rd box.
I am now testing failover from a client perspective by powering down CM01 and querying the current management point on the client: (get-wmiobject -namespace root\ccm -class ccm_authority).CurrentManagementPoint . The management point assigned to
the client flips to the the 2nd server, CM02, as expected. However, when I try to open the CM management console, I cannot connect to the Site, and reading SMSAdminUI log reveals this error: "Provider machine not found".
Is the Primary site server a single point of failure?
Why can't I point the console to a secondary SMS provider?
If this just isn't possible, what is the course of action to restore console access once the Primary Site server is down?
Many Thanks

Yes, that is a completely false statement. Using a CAS and multiple primaries in fact will introduce multiple single points of failure. The only technical Eason for a CAD a multiple primary sites is for scale out; i.e., supporting 100,000+ managed systems.
HA is achieved from a client perspective by adding multiple site systems hosting the client facing roles: MP, DP, SUP, App Catalog.
Beyond that, all other roles are non-critical to client operations and thus have no built-in HA mechanism. This includes the site server itself also.
The real question is what service that ConfigMgr provides do you need HA for?
Jason | http://blog.configmgrftw.com

Implementing single sign on across multiple web apps

Hi
I was wondering if somebody could help me. I need to implement single sign on
for multiple web apps deployed in separate WARs in a single EAR file. I need
to authenticate against an LDAP server and ensure that the user only has to sign
on once per user session even if the user navigates between web apps. The weblogic
docs only seem to go so far, i.e. "Single sign on works if each web app uses the
same cookie" etc. So I see that, apart from buying WebLogic Enterprise Security
there are only two ways of doing this:
1. Implement single sign on.
2. Create my own security realm with my own authenticator implementations.
So my questions are:
1. We don't want to effect the normal weblogic user/passwords used to access the
WLS console but need to have single sign on. Should we implement single sign on
(option 1,above) or create our own realm?
2. Can somebody point me to somewhere on the web/in the the WLS documentation
that shows me how to implement single sign on using session cookies?
TIA
Mik

"Mik Quinlan" <[email protected]> wrote in message
news:[email protected]..
>
Hi
I was wondering if somebody could help me. I need to implement singlesign on
for multiple web apps deployed in separate WARs in a single EAR file. Ineed
to authenticate against an LDAP server and ensure that the user only hasto sign
on once per user session even if the user navigates between web apps. Theweblogic
docs only seem to go so far, i.e. "Single sign on works if each web appuses the
same cookie" etc. So I see that, apart from buying WebLogic EnterpriseSecurity
there are only two ways of doing this:
1. Implement single sign on.
2. Create my own security realm with my own authenticator implementations.
So my questions are:
1. We don't want to effect the normal weblogic user/passwords used toaccess the
WLS console but need to have single sign on. Should we implement singlesign on
(option 1,above) or create our own realm?
2. Can somebody point me to somewhere on the web/in the the WLSdocumentation
that shows me how to implement single sign on using session cookies?
http://e-docs.bea.com/wls/docs81/security/thin_client.html#1039551
That also has a pointer to:
For more information, see session-descriptor in Assembling and Configuring
Web Applications.

Why can't we have a single point of contact who de...

Three weeks ago our house was hit by lightning and our broadband connection went on the blitz (a Linnit technical term).
The telephone stopped working. I did an on-line check and the connection registered a fault. The on-line system logged the fault with the teachnical team. So far so good...
I received a call from the tech team advising an engineer was coming out to us, if the fault was with our equipment we would be charged. That's fair. Engineer called. My phones were fine, BUT the BT router was where the fault lay said the engineer. We would need to raise another fault report because he only dealt with telephone AND as he was a subcontractor he would bill for the work... He disconnected the router so the phone would work and left.
I work virtually, which means that I can work from my home, so I need the internet even more than my family want the telephone. I plugged the internet back in so that I could continue to work and called BT again from my mobile. Speaking to a very polite guy in Delhi I was asked to describe my phone socket, unplug the router from the office, carry it downstairs to the kitchen where the main socket is, plug the router in there, reconnect, try again, all sorts of stuff before finally being advised that it was probably just the 'microfilter' and that as they were very inexpensive it might be faster for me to go out and buy one and plug it in myself rather than have another engineer come out to us.
So I did just that. In fact, as the microfilters are less than a fiver, I got two... brought them home and plugged one in... didn't work.
Called Delhi again. Spoke to someone else who was, again, very polite. They tried to get me to unplug and plug things in and out again, but I politely declined this time explaining that now the poor internet connection that we did have was running so slowly I am having to commute in to work over Christmas. He sympathised and told us that he would escalate the issue. That was before Christmas. Since then I received a text on my phone on Christmas Day telling me they couldn't reach me!!!
Today I called again to BEG someone to please come out and fix things for us. We aren't technical. We cannot act as pseudo engineers. We pay BT one bill each quarter for a service. Why on earth can't BT provide me with a single point of contact when I have an issue. And if that point of contact could understand me and explain things to me in words and phrases that I understand that would be perfect!
Last year I cancelled three mobile contracts that we'd had since the early 90's with O2 because they were so unhelpful.
BT aren't the cheapest broadband provider but we've stayed with them out of 20+ years loyalty and the understanding that we had a one-stop-shop. Now, it looks as though I'll be shopping around for another domestic broadband provider for 2012.

Thank you for being so helpful and constructive.
I tried to look at the ASDL settings, john46 but it's asking me for my HomeHub password... the only password I have is for our wireless network and that one doesn't work.
I can't test the phone line right now because I'll have to disconnect the internet and I'm currently working on another computer whilst chatting on this one with you. However I will do that later. I'll also look at the RogerB link you provided.
Truth is, we're pensioners who use the internet but we havent a grain of technical understanding between us. We're old fashioned enough to admit that we just want someone who knows what he's doing to come here and fix it for us. It's already cost us £130 for an engineer to come out from OpenReach to tell us the phone line is OK and it's the router causing the problem. Best case scenario is that another BT engineer who knows about broadband comes out and does it because the last BT person that I spoke to in Delhi did actually confirm that there is a fault on the BT side. I'm getting so frustrated right now I'll probably call out an independant I find in Yellow Pages and get charged an arm and a leg again and I'll then cancel with BT in a fit of pique.

NI-DAQmx VisualStudio C++ 6 Single point analog output

Specs: NI-DAQmx 7, VisualStudio C++ 6.0, PCI-6722,8channel AO
We have a very simple application: set a voltage (actually 6 channels) and keep it until we want it changed again, perform the change very quickly in response to an image capturing algorithm. So I don't need any waveforms or buffering.
In this forum post http://forums.ni.com/ni/board/message?board.id=231&message.id=3283&query.id=18094 you talk about an AOOnePoint example, but I get an error that the NI-DAQ driver does not support my device.
I may need to use NI-DAQmx, but how? I would like to use something like AO_VWrite(,,), maybe for 6 channels in one call. But I can't find it in NI-DAQmx. It seems I need to setup buffers and frequencies. I have a working sample, but it seems a slow and certainly overkill of this simple application:
// Link with \DAQmx ANSI C Dev\lib\msvc\NIDAQmx.lib
#include "NIDAQmx.h"
double[2] data;
int taskHandleAnalog;
int written;
void Init()
    DAQmxErrChk (DAQmxCreateTask("",&taskHandleAnalog));
    DAQmxErrChk (DAQmxCreateAOVoltageChan(taskHandleAnalog,"Device and Channel Info","",0,10,DAQmx_Val_Volts,NULL));
    DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandleAnalog,"",1000,DAQmx_Val_Rising,DAQmx_Val_ContSamps,NUMBER_OF_AO_SAAMPLES));
    DAQmxErrChk (DAQmxWriteAnalogF64(taskHandleAnalog,NUMBER_OF_AO_SAAMPLES,0,1.0,DAQmx_Val_GroupByChannel,data,&written,NULL));
    DAQmxErrChk (DAQmxStartTask(taskHandleAnalog));
void SetVoltage( double voltage )
    data[0] = voltage;
    data[1] = voltage;
    DAQmxStopTask(taskHandleAnalog);
    DAQmxErrChk (DAQmxWriteAnalogF64(taskHandleAnalog,NUMBER_OF_AO_SAAMPLES,true,10.0,DAQmx_Val_GroupByChannel,data,&written,NULL));

Hi,
It looks like you simply wants to output voltages on the analog output channels, but only wants one update at a time with no waveforms or buffering in DAQmx.
As I'm sure you know there are really just 3 types of measurements. Single Point, Finite, and Continuous. Since you want a single value at a time it's just a Single Point operation.
You can find DAQmx examples for single point operations in this path:
C:\Program Files\National Instruments\NI-DAQ\Examples\DAQmx ANSI C\Analog Out\Generate Voltage\Volt Update
Simply place the DAQmx Write Code within a loop and you will be updating one value at a time, but multiple times when "we want it changed again".
Dennis Morini
Field Sales Engineer
National Instruments Denmark
http://www.ni.com/ask

Is there a way to stop the OS from switching to a newly opened app? I would like to be able to continue what I'm doing while I wait for an app to launch and not get interrupted by a forced entry into the app.

Is there a way to stop the OS from switching to a newly opened app? I would like to be able to continue what I'm doing while I wait for an app to launch and not get interrupted by a forced entry into the app.
As an example, I'm going to my email in safari, while I wait for it to load, I open an excel document, and the OS decides excel should be the front app, so I go back to safari so I can enter my login info, but halfway through my password the OS decides that excel is where I should finish typing my password.
VERY ANNOYING. Can I open apps in the background?

Thank you everyone for the suggestions. J D, I'm not a terminal fan, but I'm sure it works. I found a solution that I can use in the dock from another post.
Annoyed by Mac OS
Works great and allows me to maximize those multitasking minutes.

Pl/sql block reading reading table data from single point in time

I am trying to figure out whether several cursors within a PL/SQL block are executed from within a Single Point In Time, and thus do not see any updates to tables made by other processes or procedures running at the same time.
The reason I am asking is since I have a block of code making some data extraction, with some initial Sanity Checks before the code executes. However, if some other procedure would be modifying the data in between, then the Sanity Check is invalid. So I am basically trying to figure out if there is some read consistency within a PL/SQL, preventing updates from other processes to be seen.
Anyone having an idea?.
BR,
Cenk

"Transaction-Level Read Consistency
Oracle also offers the option of enforcing transaction-level read consistency. When a transaction runs in serializable mode, all data accesses reflect the state of the database as of the time the transaction began. *This means that the data seen by all queries within the same transaction is consistent with respect to a single point in time, except that queries made by a serializable transaction do see changes made by the transaction itself*. Transaction-level read consistency produces repeatable reads and does not expose a query to phantoms."
http://www.oracle.com/pls/db102/search?remark=quick_search&word=read+consistency&tab_id=&format=ranked

Single point of entry to apex app

Similar Messages

Maybe you are looking for