Use SSO resource for 10gReports across two servers
We currently have installed oracle10g suite on a server which has 10ginfra,10gas and 10greports.
We are able to generate reports without passing the Username Password to the request by creating an SSO resource.
We now have a requirement to move 10greports to a new server and have the Portal on the existing server. Is there any means by which the Portal User can use the fire reports, which inturn can use the SSO resource defined on the Portal Server.
Basically the requirement is to decouple Portal and Reports Server across machines and yet be able to use SSO resource to get DB User credentials for generation of reports.
Pls Help.
There is no problem if you keep same SericeAccount for 2 Env.
In Cluster Env configuration would be same no extra effort, configuration is tomcat dependent not CMS or Processing Server dependent.
Encryption is by default RC4 in 3.1 and 4.1
Similar Messages
-
Flex IO error# 2032 when using IE7 for parallel https calls across two servers
Hi,
Weeks back I faced a wierd issue in the behaviour of flashplayer running on IE7 which is invoking parallel https calls. I have two SSL enabled servers one is listening on port 443 and the other is listening on port 8443 but both running in the same domain. I developed a flex client (using httpservice class) which sends parallel https requests to these two servers. When the number of parallel requests increases say more than 5 requests to each server, the fault handler was encountered with the error message:
[RPC Fault faultString="HTTP request error" faultCode="Server.Error.Request" faultDetail="Error: [IOErrorEvent type="ioError" bubbles=false cancelable=false eventPhase=2 text="Error #2032: Stream Error. URL: https://servlet"]. URL: https://servlet"]
I used some http tracer tools to check if the request jumps out of the browser but that didnt happen. I am 100% sure that I am using the correct url. I was totally helpless . This worked without any issues in IE8 or Chrome or Firefox. This made me think about increasing the number of concurrent connections for IE7 by modifying the windows registry. But still no difference in the behaviour.
After breaking my head for a long days, I got one solution which would work. This issue is happening only if we are sending https requests to different ports in the same domain. So rather than moving one among the two servers to a new domain, I got a new DNS name for the same destination. So presently I got two DNS names pointing to the same machine in which both the servers are mounted.
After this it really worked cool!!! Now that I am using a separate DNS name for the server listening on port 8443 and the old DNS name is used to hit the server listening on 443. And I am happy that its working fine without any issues .
But can anyone tell me if this is really an IE7 issue or do we have anyother solution to fix this.
Please share ur thoughts..Hi,
I am building a mobile employee directory and for that I am using Flash Builder 4.6/AIR 3.1.0. I am using RESTful web service to get XML results and to display on my mobile application. I am getting the same below error when accessing the webservice from mobile app (Android - Galaxy Tab 7 inch).
Error: [IOErrorEvent type="ioError" bubbles=false cancelable=false eventPhase=2 text="Error # 2032"] URL: http://adfdevp.alshaya.com:7013/RESTEmployeeDetails-EmployeeDetails-co">http://adfdevp.alshaya.com:7013/RESTEmployeeDetails-EmployeeDetails-co ntext-root/jersey/restlabhttp://adfdevp.alshaya.com:7013/RESTEmployeeDetails-http://adfdevp.als haya.com:7013/RESTEmployeeDetails-EmployeeDetails-co ntext-root/jersey/restlabEmployeeDetails-context-root/jersey/restlab
The same code is working in Flash Builder 4.6. I have checked Network Monitor to "Disabled" before deploying to mobile. What am i doing wrong here? I am pasting my code below-
<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" title="HomeView" xmlns:dao="dao.*"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.collections.IList;
import mx.collections.XMLListCollection;
import mx.events.FlexEvent;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
import mx.rpc.xml.SimpleXMLDecoder;
import mx.utils.ArrayUtil;
import valueObjects.EmployeeDetail;
[Bindable]
private var myXml:XML;
[Bindable]
public var resultCollection:IList;
public function handleXml(event:ResultEvent):void
var xmlListCollection:XMLListCollection = new XMLListCollection(event.result.children());
var xmlListCollectionValues:XMLListCollection = new XMLListCollection(event.result.emp.children());
var resultArray:Array = xmlListCollection.toArray();
var resultArrayValues:Array = xmlListCollectionValues.toArray();
var objEmployeeDetails:EmployeeDetail;
var resultCollection:ArrayCollection = new ArrayCollection();
var j:int = 0;
for(var i:int=0;i<resultArray.length;i++){
objEmployeeDetails = new EmployeeDetail();
objEmployeeDetails.brand = resultArrayValues[j];
objEmployeeDetails.division = resultArrayValues[j+1];
objEmployeeDetails.email = resultArrayValues[j+2];
objEmployeeDetails.employee_name = resultArrayValues[j+3];
objEmployeeDetails.employee_number = resultArrayValues[j+4];
objEmployeeDetails.grade = resultArrayValues[j+5];
objEmployeeDetails.mobile = resultArrayValues[j+6];
objEmployeeDetails.position = resultArrayValues[j+7];
j = j + 8;
resultCollection.addItem(objEmployeeDetails);
list.dataProvider = resultCollection;
//return resultCollection;
public function handleFault(event:FaultEvent):void
//Alert.show(event.fault.faultDetail, "Error");
protected function sesrchEmployee():void
xmlRpc.send();
]]>
</fx:Script>
<fx:Declarations>
<dao:EmployeeDAO id="srv"/>
<mx:HTTPService id="xmlRpc"
url="http://adfdevp.alshaya.com:7013/RESTEmployeeDetails-EmployeeDetails-co ntext-root/jersey/restlab"
result="handleXml(event)"
fault="handleFault(event)"
resultFormat="e4x" showBusyCursor="true">
<mx:request xmlns="">
<data>{key.text}</data>
<data>{key1.text}</data>
</mx:request>
</mx:HTTPService>
</fx:Declarations>
<s:navigationContent/>
<s:titleContent>
<s:VGroup width="100%">
<s:HGroup width="100%">
<s:Label top="40" paddingTop="10" paddingRight="13" height="29" text="Employee Name:"/>
<s:TextInput id="key" width="559"/>
</s:HGroup>
<s:HGroup width="100%">
<s:Label height="30" paddingTop="10" text="Employee Number:"/>
<s:TextInput id="key1" width="100%"/>
</s:HGroup>
</s:VGroup>
</s:titleContent>
<s:actionContent>
<s:Button icon="@Embed('assets/search.png')" click="sesrchEmployee()"/>
</s:actionContent>
<s:List id="list" top="0" bottom="0" left="0" right="0"
change="navigator.pushView(EmployeeDetails, list.selectedItem)">
<s:itemRenderer>
<fx:Component>
<s:IconItemRenderer label="{data.employee_name}"
messageField="position">
</s:IconItemRenderer>
</fx:Component>
</s:itemRenderer>
</s:List>
</s:View>
Please help me to resolve this issue as soon as possible. Appreciate your quick response in this regard.
Thanks,
Murtaza Ghodawala
Mobile: +965 97180549
[email protected] -
Useful Document/resources For Begginners
this document is easily on net
WS-BPEL Guide
Last changed on Dec 10, 2004 by Matthieu Riou
What is this article about ?
This is an introduction to WS-BPEL that should give you a practical understanding of what you have to do to create a nice WS-BPEL process, dwelling on most important details. After reading this article you probably won't be able to write a WS-BPEL process from top to bottom. But you should have a pretty good notion of what can be done with it, what it involves and be familiar with the main elements of the grammar.
First things first, here are the answers to the most trivial questions:
What this new and unique acronym means? Web Services Business Process Execution Language.
What is WS-BPEL? It's an XML grammar (a W3C schema) defining and standardizing structures necessary for web services orchestration.
What does WS-BPEL? Well, actually nothing as it's just a grammar. But a WS-BPEL engine can do many things when executing your process. Like reacting to message reception, manipulating the message data, sending messages to web services and evaluating expressions.
Where does it come from? It has been written by IBM, BEA Systems and Microsoft. Siebel and SAP joined these three and the specification has bee donated to OASIS.
Where does WS-BPEL fit? It's a very good candidate to add an orchestration layer to a Service Oriented Architecture. It will make your services collaborate nicely and will encapsulate the cross-service business logic. It will also help you to introduce long-living transactions.
Now that the introductory questions have been answered and before going any further I would like to clarify one thing about WSDL (I voluntarily wrote WSDL here, it's not a weird typo). WS-BPEL heavily relies on WSDL to describe the web services it is interacting with (we will see that soon) but that doesn't mean that it can only interact with services using XML(SOAP)/HTTP. WSDL introduces bindings which are the declaration of your services underlying communication medium. Bindings can be declared for local Java, JMS, RMI or anything you like (you might want to check Apache WSIF ). So a WS-BPEL engine using the right bindings could very well invoke many different services.
So let's see how we are going to take a look at WS-BPEL. First, I'm going to give a very simple and classic example, just to give you a taste of what can be done with WS-BPEL. Then I'll introduce briefly its main activities. We'll see how to handle your process data and manipulate it and also how a particular process execution can be identified among all others. Finally we'll talk about how WS-BPEL introduces long-living transactions.
A very simple yet demonstrative example
After reading this chapter, most of you will probably think that the example I'm going to use is too simple and not realistic. I agree. But my goal here is just to give you a flavor of how WS-BPEL can be used, a realistic example would take more than all this article by itself.
Now, you are the owner of a small bank granting loans to some of your customers. You have sales offices creating new customer contracts. You also have a web site and customers can directly ask for a loan online for small amounts. But before accepting a contract, some verifications are necessary. Those verifications are done using a risk assessment system maintained by a third party and by an in-house system that files the most tough requests. Loan specialists are part of your staff and then use this in-house system to take the final decision.
So here is, step by step, the process that must be followed:
1. A loan request is issued, either from your web site of from one of your agencies. This request is made for a customer and for a certain amount.
2. A risk assessment system must be contacted to check whether the risk associated with the customer asking for the loan is high or low (probably based on his credit history).
1. If the loan amount is lower than $10,000 and the risk associated to the customer is low, the loan is directly approved (which saves time).
2. Otherwise, the loan request must be filed in your in-house system.
1. A loan specialist checks the request and gives his final decision.
2. The in-house system let you know the specialist's decision.
3. The response is sent to the customer.
So how those pieces would be implemented in a "WS-BPEL aware" architecture? Here we go:
One message triggered by your web site or your sales system and targeted at your process web service. It would hold at least the customer's name and the loan amount.
One message triggered by the WS-BPEL engine to the risk assessment system to ask for the risk associated with the customer. If you pay your bills correctly, an answer message from this message should be expected.
If needed, one message from the WS-BPEL engine to your in-house system to fill the loan request.
One message from your in-house system to the process web service to give it the loan specialist's answer.
Finally, one message back to your web site or to your sales system to give the final answer.
One thing some of you probably already noticed is that when talking about the process I mentioned the "process web service". That's right, every process created inside a WS-BPEL engine is published as a web service with its own endpoint. When you want to send a message to your process, you actually send it to this web service.
So now that you have a better idea of what it would take to implement this process in WS-BPEL, it's time to step back a bit.
Private vs. Public Processes
It's quite important to differentiate private and public processes (they are called executable and abstract in WS-BPEL). It is the same kind of opposition as between orchestration and choreography and it has a great impact on your architecture.
Private processes manage services inside a given organization. They act as a service themselves and are centralized. As in an orchestra, there is a chief conductor (the process engine). Public processes manage services across several organizations. Each organization knows about it's own part of the process but doesn't know anything about the activities executed by other parties (for obvious confidentiality reasons). It's a peer-to-peer approach where you know the incoming and the outgoing messages, but nothing about what is done before, after or even meanwhile.
WS-BPEL is quite good to handle private processes but doesn't perform so well for public ones (don't shoot me!). I have a feeling that even the members of the Oasis committee working on WS-BPEL don't know too much what to do with those. But actually, service choreography (public services) is not completely mature yet in terms of standards and market acceptance where as orchestration already has a widely embraced specification (WS-BPEL, in case you didn't realize) and many commercial implementations as well as open source ones (you may want to check Twister ). So good news, what you are going to learn in this article might prove useful.
After those high-level considerations, we'll now look into WS-BPEL guts to see what's there and what we could use to build our process.
WS-BPEL Activities
In WS-BPEL, everything being part of your process body is an activity. There are basic activities (the ones that do something) and structured activities (the ones that organize basic activities without doing anything by themselves, just like your boss).
Basic activities
Invoking a web service is as simple as that:
<invoke partnerLink="riskAssessor" portType="assessor" operation="assess"/>
Pretty simple isn't it? In our initial example this declaration would be used to invoke the risk assessment system. Well, I'm actually cheating, you'll see later that you usually need a bit more (like input and output data) but this is a valid invocation.
To wait for an incoming message, you'll write:
<receive partnerLink="inhouseSystem" portType="inhousePort" operation="registerLoanRequest"/>
That would be used to wait for the loan specialists' answer after registering the loan request in your in-house system. Now let's say that you want to send an immediate synchronous answer to this "receive". You'd write, after the receive:
<reply partnerLink="inhouseSystem" portType="inhousePort" operation="registerLoanRequest"/>
But how exactly does a WS-BPEL engine know, upon reception of a message, if it has to trigger the creation of a new process execution (a process instance)? Well, there's an attribute just for that: "createInstance".
<receive partnerLink="loanRequester" portType="loanProcess" operation="processLoanRequest" createInstance="true"/>
These 3 declarations use common attributes: partnerLink, portType and operation. If you know WSDL, you are already familiar with the port types and operations. Partner links have been introduced in WS-BPEL to model a two-way interaction between a process and a partner (a web service or another process). It lets you define the role of each of the two party in the interaction.
There are two more basic activities that could prove useful (or at least one of the two):
<wait until="'2002-12-24T18:00+01:00'"/>
<empty/>
Structured activities
To start with, 3 basic ones: sequence, switch and while. If their behavior is not clear yet, here are examples:
<sequence>
<receive .../>
<invoke .../>
<invoke .../>
</sequence>
<switch xmlns:inventory="http://supply-chain.org/inventory" xmlns:FLT="http://example.com/faults">
<case condition= "bpws:getVariableProperty(stockResult,level) > 100">
do something
</case>
<case condition="bpws:getVariableProperty(stockResult,level) >= 0">
do something else
</case>
<otherwise>
do the last thing
</otherwise>
</switch>
<while condition="10 < bpws:getVariableData('loopVar', 'main', '/counter')">
<assign>
<copy>
<from expression="bpws:getVariableData('loopVar', 'main', '/counter') + 1"/>
<to variable="loopVar" part="main" query="/counter"/>
</copy>
</assign>
</while>
Another structured activity is 'pick'. It's just like several receive activities waiting at the same time with an additional alarm construct to avoid waiting forever the occurrence of a message:
<pick>
<onMessage partnerLink="" portType="" operation="">
do something
</onMessage>
<onMessage partnerLink="" portType="" operation="">
do something else
</onMessage>
<onAlarm until="2004-12-31T23:59:00">
hey, what the hell are you waiting for?
</onAlarm>
<pick>
Like the receive activity, it's possible to declare a 'createInstance' attribute on the pick element to trigger the creation of a new process instance.
Finally, for those who found all those activities way too structured and were missing a bit of anarchy, WS-BPEL introduced a flow activity. You basically declare all your activities as you like and then create links that take those activities as origin and target. The flow is also the only way to enable the execution of several parallel branches.
Process Data
To handle the process execution data, WS-BPEL introduces a new and unique concept: variables Ok, that was just a bad attempt to keep you interested. Here is the context: your process engine must receive and send messages as defined by web services WSDL descriptions. To be able to do anything useful it must retain those messages and let you manipulate their content to create new messages or influence the process flow in variables. Therefore variables hold the state of a process execution. WS-BPEL variables can either hold a WSDL message or an arbitrary XML structure defined by a schema.
An example for the declaration of a variable that can hold a WSDL message (the first stanza comes from the WSDL description, the second is a part of the process definition):
<message name="creditInformationMessage">
<part name="firstName" type="xsd:string"/>
<part name="lastName" type="xsd:string"/>
<part name="amount" type="xsd:integer"/>
</message>
<variable name="requestLoan" messageType="creditInformationMessage"/>
So now, how do I stuff an incoming message into this variable? Here is the stuffing:
<receive partnerLink="loanRequester" portType="loanProcess" operation="processLoanRequest" variable="requestLoan"/>
Hey hey! That's our old receive! A variable attribute can be specified for a receive to hold the incoming message. For a reply, there's also a variable attribute to give the content of the message to send. And for an invoke, there's an inputVariable attribute to give the variable to send and an outputVariable to hold the response (for a synchronous invocation).
We have variables to hold our message and we know how to give them a value upon reception of a message. But how do you initialize a variable when you want to send a message using it? How do you build a variable using parts of other variables? The answer is assignment. There's an additional activity I didn't mention yet (yes, I'm holding information) named assign. It lets you "copy and paste" the whole content of a variable, only a WSDL part in a message or even just an element (using Xpath). Again, examples are better than idle words:
<assign>
<copy>
<from variable="ob1"/>
<to variable="knob"/>
</copy>
<copy>
<from variable="userInfo" part="homeAddress"/>
<to variable="address"/>
</copy>
<copy>
<from variable="house" part="bathroom" query="/shower/soap"/>
<to variable="cleaningAgent"/>
</copy>
<copy>
<from>hey you</from>
<to variable="song" part="title"/>
</copy>
</assign>
Once your variable has been set correctly, you can simply use it as inputVariable for an invoke.
There's still one mystery unsolved in the way you can use variables in WS-BPEL: referencing them in expressions. Let's say you have a variable holding a specific value and want to use this value in the condition of a switch case, how do we do that? By using two functions:
bpws:getVariableProperty ('variableName', 'propertyName')
bpws:getVariableData ('variableName', 'partName'?, 'locationPath'?)
The first function accepts the name of your variable and a property (we'll introduce property later but right now you just need to know that a property is a named XPath expression). The second accepts your variable, an optional part and an optional XPath expression relative to the part root.
It's now time to see your first complete WS-BPEL example. It triggers the execution of a process upon reception of a message and iterates over a value contained in the message until 10. It's a very stupid example and it's probably the last thing you want to do with WS-BPEL (just as a reminder, WS-BPEL is used to orchestrate web services, not iterate over a value) but it illustrates almost everything we talked about in this paragraph.
<?xml version='1.0' encoding="UTF-8"?>
<process name="loop"
targetNamespace="http://www.smartcomps.org/twister/example/loop/process/"
xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:def="http://www.smartcomps.org/twister/examples/loop/service/"
abstractProcess="no">
<variables>
<variable name="loopVar" type="loopVarType"/>
</variables>
<correlationSets>
<correlationSet name="counterCorrel" properties="def:counterId"/>
</correlationSets>
<sequence>
<receive partnerLink="loopPartner" portType="loopPort" operation="loopOp"
variable="loopVar" createInstance="true">
<correlations>
<correlation set="counterCorrel" initiate="yes"/>
</correlations>
</receive>
<while condition="10 > bpws:getVariableData('loopVar', 'main', '/counter')">
<assign>
<copy>
<from expression="bpws:getVariableData('loopVar', 'main', '/counter') + 1"/>
<to variable="loopVar" part="main" query="/counter"/>
</copy>
</assign>
</while>
</sequence>
</process>
As you probably already realized, data manipulation can quickly become a bit verbose. The WS-BPEL Technical Committee is currently working on it to have something easier for WS-BPEL 2.0.
Correlation
Correlation is a notion that can be a bit hard to grasp at first but is very important. So hang on and I'll do my best to be even more clear (somehow) than usually. During its execution, a process has to interact with several different services. This interaction is stateless so there is no way to make sure you will be addressed to a particular instance of a service. So let's imagine you own a wine store and have a web site allowing users from all over the world to order cheap and very good French wine. A service provided by your bank does the billing for you and you also use a shipper to send the orders all over the world. When a user places an order online, your web site generates an order id. But your bank doesn't know anything about your order id, it creates its own billing id corresponding to your order and you always must use this billing id when interacting with your bank (to confirm the transaction just after shipment for example). The shipper also creates his own shipment id that will be used when he confirms that the order has been sent.
You want to use a WS-BPEL engine to handle those tasks automatically and orchestrate all the services (there's probably much more than three services and many steps involved). That's a really good idea!!! But how do you deal with all these different ids ? Yep, you guessed it: correlation. How does it work? A correlation is an unique way to identify the interaction of your process execution with a given party. A correlation is a list of property elements and a property element is a named XPath expression. This XPath expression must select a value in the exchanged messages that will be the value of the correlation for this particular message. So for our previous example we would define the following elements:
<property name="billId" type="xsd:string"/>
<propertyAlias propertyName="billId" messageType="createBillMessage" part="billInfo" query="billId"/>
<propertyAlias propertyName="billId" messageType="confirmTransactionMessage" part="billId"/>
<property name="shipId" type="xsd:string"/>
<propertyAlias propertyName="shipId" messageType="shipMessage" part="shipId"/>
<correlationSets>
<correlationSet name="bankCorrelation" properties="billId"/>
<correlationSet name="shipperCorrelation" properties="shipId"/>
</correlationSets>
A correlation can be composed of more than one property (separated by spaces). A property can also have several aliases for each type of message the correlation is used for.
Usually a correlation is declared for each actor your process has to communicate with. The correlation is initiated during the first message exchange between your process execution and a party and is reused anytime your process execution sends a message to this party.
Compensation
I'm not going to detail this chapter as much as I did for the previous ones. This article is already far too long (and therefore too boring). Talking about compensation in a detailed manner would require another article like this one. But to whet your appetite, I'll tell you what its is and what it is the problem it has been designed to solve.
Compensation is related to error handling. WS-BPEL processes are usually long-lasting (there could be days between 2 activities), they use asynchronous messages and interact with several different services. Introducing the concept of ACID transactions in this context is quite tough. Each of the services involved can locally use its own transaction but it's impossible within your process to control them (and you probably don't want to). So what can you do if you have three asynchronous operations, like 3 invoke / receive couples, that must be executed in an "all or nothing" fashion? How to cancel the two first operations that have already been committed if the third fails?
Compensation is basically a set of activities attempting to cancel operations that have already been completed inside an unit of work. If an activity fails or a fault is thrown inside this unit of work, this set of activities is supposed to roll back everything that has been already completed in the unit of work in a way specific to your business case. You are the only one who really knows what to do if something goes wrong so you have to provide the necessary operations.
But this system has important drawbacks:
It is your responsibility to execute the right activities to handle the cancellation.
All the services you are interacting with must support a way to rollback a previously committed transaction (most probably requiring some hard coding).
Conclusion
WS-BPEL has been a bit criticized principally for its absence of human participant interaction (as in conventional workflows), everything is a service. But whether you like it or not, it's already standard and if you use it for what it is good at, a pretty good one. Besides it's a good step in the right direction to standardize the BPM - SOA - 'call it what you like' space. And you can always rely on good products like Twister to introduce Worklist functionalities (remember, always a bit of marketing in a conclusion).
Resources
WS-BPEL Specification: http://www-106.ibm.com/developerworks/library/ws-bpel/
Oasis WS-BPEL Technical committee: http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=wsbpel
Twister WS-BPEL Open Source Implementation: http://www.smartcomps.org/twisterWhere can I get a document like this for the IQ775? I have asked HP several times, but get no response. I just want to know how to open the damned thing!
-
Changes are not reflecting using af:resource for adding CSS
Hi,
I am trying to add new CSS file(say the name as customNew.css) to page template using af:resource tag, the changes are not reflected. Instead I see(using firebug) that, styles coming from different CSS file(say the name as customOld.css ) which configured on trinidad-config.xml and trinidad-skins.xml files.
I was under the impression that, the new CSS file(customNew.css) will override the old css (customOld.css). So, CSS added using af:resource tag will not override any other CSS ???
Any help will be appreciated
Thanks,
San.Hi,
if you bring CSS to the browser through af:resource then this is not overriding any skinning definition. Skins can only changed in trinidad-config.xml file (which also can be done at runtime). Just adding a CSS file to af:resource wont do the trick here.
Frank -
Using JDBC Persistent Manager for Tomcat across multiple Servers
Sorry if I word this question incorrectly, but I hope you can get the gist of it. Basically, I have a web application that will be running on 2 different machines. When too many users are on one machine, they are switched over to another machine (load balancing). If I use JDBC (or file) Persistance Manager to store sessions, what happens when a user is switched between machines? If both machines use the same settings for the Persistance Manager, when a user has just been moved to a new machine, will it be able to load the session from the DB? (since it should have its sessionID). If you can not do this, is there a way to do it?
Thanks!Sorry if I word this question incorrectly, but I hope
you can get the gist of it. Basically, I have a web
application that will be running on 2 different
machines. When too many users are on one machine,
they are switched over to another machine (load
balancing). If I use JDBC (or file) Persistance
Manager to store sessions, what happens when a user is
switched between machines? If both machines use the
same settings for the Persistance Manager, when a user
has just been moved to a new machine, will it be able
to load the session from the DB? (since it should
have its sessionID). If you can not do this, is
there a way to do it?
Thanks!Session ids are unique and cannot be transferred between different servers... Wise web servers supports load balancing and should be able to transfer/store session without your special code. If you still keen to write transfer code yourself you have to:
1) Store not only session id, but also all content of session (including some virtual (your) session id
2) Transfer (i.e. create a copy) stored session content to another machine
Paul -
ACE module not load balancing across two servers
We are seeing an issue in a context on one of our load balancers where an application doesn't appear to be load balancing correctly across the two real servers. At various times the application team is seeing active connections on only one real server. They see no connection attempts on the other server. The ACE sees both servers as up and active within the serverfarm. However, a show serverfarm confirms that the load balancer sees current connections only going to one of the servers. The issue is fixed by restarting the application on the server that is not receiving any connections. However, it reappears again. And which server experiences the issue moves back and forth between the two real servers, so it is not limited to just one of the servers.
The application vendor wants to know why the load balancer is periodically not sending traffic to one of the servers. I'm kind of curious myself. Does anyone have some tips on where we can look next to isolate the cause?
We're running A2(3.3). The ACE module was upgraded to that version of code on a Friday, and this issue started the following Monday. The ACE has 28 contexts configured, and this one context is the only one reporting any issues since the upgrade.
Here are the show serverfarm statistics as of today:
ACE# show serverfarm farma-8000
serverfarm : farma-8000, type: HOST
total rservers : 2
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver: server#1
x.x.x.20:8000 8 OPERATIONAL 0 186617 3839
rserver: server#2
x.x.x.21:8000 8 OPERATIONAL 67 83513 1754Are you enabling sticky feature? What kind of predictor are you using?
If sticky feature is enabled and one rserver goes down, traffic will leans to one side.
Even after the rserver retuns to up, traffic may continue to lean due to sticky feature.
The behavior seems to depend on the configuration.
So, please let me know a part of configuration?
Regards,
Yuji -
Use of "findByMultipleParameters" for "OR " between two Query Filters
Hi,
I am also working in CE7.1 .I have a query regarding the use of "findByMultipleParameters" .
That is how to use "OR " between two Query Filter condition,because if we add multiple queries into Query Filter List it will by default taking "AND " .
For an example, I have to pull data from a table/BO with a condition col A = 10 OR ( col B > 100 AND col c = "XYZ") .
My code snippet looks like given below.......
List queryFilters = new ArrayList();
QueryFilter queryFilterOne = QueryFilterFactory.createFilter("ROLLUMBER",Condition.EQ, rollNumber);
QueryFilter queryFilterTwo = QueryFilterFactory.createFilter("NAME",Condition.EQ, "123");
queryFilters.add(queryFilterOne);
queryFilters.add(queryFilterTwo);
List students = studentServiceLocal.findByMultipleParameters(queryFilters, false, "xyz");
I have tried all these and found all of them deprecated,Please suggest something appropriate.Your quick response will help a lot.
//queryFilterOne.setAction(QueryFilter.OPERATION_OR);
//QueryFilterFactory.createBoolOperator(queryFilterOne.OPERATION_OR);
//queryFilters.add(QueryFilter.OR);
//queryFilters.add(queryFilterOne.setOperation(QueryFilter.OPERATION_OR));
My another Query is what is the role of implCheck(Boolean),findByName(String) in "findByMultipleParameters()" ?
Thanking you for your help in advance.
Regards,
Sonali
Edited by: Sonali Das on Sep 14, 2010 2:32 PMHi Praveen/Harris,
As Mr Bhanu said , we can get the result by using formula variable defined on attribute with replacement path as processing type.
There is document in https://websmp101.sap-ag.de/bi
in infoindex->How to Calculate with attributes
To findout the difference between formula variable and current date, define one more formula variable with processing as custoemr exit.And fill this variable with sy-datum or something else.
with rgds,
Anil Kumar Sharma .P -
Using Solution Manger for transports across entire landscape
Hi
I would like to know, is there any option in Solution Manager to use for transports for the entire landscape?
We have around 35+ SAP instances of different releases like ECC6.0, SCM 4.1, and BI 7.0 in our landscape. We also have portal systems in our landscape.
Currently we are doing transports in 3 different ways like for ECC 6.0, we are doing using Dev ECC 6.0 system, for SCM, we are doing from Dev SCM system and for BI system we are doing using Dev BI system.
Is there any option available in Solution Manager to do transports for the entire landscape of different releases?
Regards
SrinivasHello,
I am not sure to understand you but you can describe all your transport route under Solution Manager for all your landscape.
Then you release transport and manage workflow from Solman.
You can do it for Java System with CTS+.
Regards,
Chris -
Using an external hard drive across two non-networked computers?
i run itunes on my home macbook with my library stored on an external hard drive. it occurred to me that i might be able to bring that hard drive to work and listen to my music on my (windows xp) work computer. so i brought it in, and i can see all the music on the drive, but it doesn't show up in my itunes library on that computer.
how do i go about doing that? is it even possible?figured it out...i needed to copy the itunes library.itl and itunes library.xml files to my windows pc, and once that was done, itunes recognized the library on my external hard drive.
-
Hello,
We have the system 11.5.7:
AppsTier on one server and the DBTier, concurrent managers and the admin on another server. There is no the load balance for the AppsTier. The load balance requests more than one server. So we are on the Single Node architecture and Not the Multinode architecture, though there are two servers (one for AppsTier and one for DBTier and etc) in the system.
The system has been in production about 3 years. There has never been over loaded due to the user sessions in the system. I believe we should combine the system 11.5.7 on the two servers to one server. We have the server can handle the load with significant free margin in terms of the server resources, and the performance will be improved by eliminating the latencies between the servers in the current system. Another major benefit is that the simplification for the maintenance and the upgrade.
I need to convince the management for consolidating the two servers to one server as described. Do you agree the proposed one server system is better than two servers for our system?
Thanks In Advance.
Seani know it will easier to manager one node rathter than multi-node but my point of view is that you will have a complete server to server your (froms and web) and another complete server for your database and concurrent manager.
maybe you and other users have different resones and i am intersted to know is it just becase the management of one server will be easier or are there other resons.
one qustions please is your single server more prowerfull than the other 2 servers or not?
fadi -
I wrote a LogFile class that opens a BufferedWriter on the specified file and writes to it when called. The constructor is as follows:
m_bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(m_strLogFile, true)));
m_logFile = new File(m_strLogFile);
I have a max log file size set to 2 megs (at which point the file is archived and reset). This limit has worked great. However, now that my system is seeing more usage, I'd like to raise the max limit to 5 megs. I've done that and all appears ok. My question is whether the JVM uses more resources for the 5 meg file than the 2 meg, or does it only keep track of a pointer to the end of the file and append to that. I'm hoping the latter is the case, so that the file size is irrelevant. However, if there might be performance difficulties writing to a file that size, I'll keep the limit at 2 megs.
MichaelI have a max log file size set to 2 megs (at which
point the file is archived and reset).I suppose it really depends on how you are doing that.
However, unless you explicitly set a buffer size somewhere that is 2 megs, then normal file io is going to use about 512 or 1k, regardless of the file size. If you use a buffered writer in java it will use 512 bytes (I believe) and the low level os will use about 512. The actual number of bytes might be 256 up to about 4k on the OS side, but I think most buffers are around 512 these days. -
How to use one certificate for two directory servers?
Hi,
running Sun DSEE 6.3.1 on two servers, server 1 has name ds1.example.com, server 2 has name ds2.example.com. There is a round robin DNS record ds.example.com, which alternates between:
ds1.example.com
ds2.example.com
and
ds2.example.com
ds1.example.com
An LDAP client connects to one of the servers over SSL using the name ds.example.com. We want to generate a certificate using the name ds.example.com and use it on both directory servers.
If we generate a CSR using DSCC on server 1 and get back a signed certificate, the certificate can be installed correctly on server 1. However, if we use the same signed certificate on server 2 it fails with error:
Unable to find private key for this certificate.
Failed to add the certificate.
Error executing the operation. The error code is 11.
What is the correct way to generate one CSR, have it signed by a CA and then implement this signed certificate on multiple servers?
/rolfFrom one Directory Server (ds1) generate CSR with the name ds.example.com in the request. Once you get the signed cert import it into the same server you generated CSR with. Then from ds1.example.com :
scp -p <slapd install/instance path>/alias/* <account>@ds2.example.com:<slapd install/instance path>/alias/
to copy the contents of the alias path to the same location on the other Directory Server. Make sure file permissions are the same. -
How to set up NAT for two servers using same port with ASDM ASA 5505
Hi there,
We have a new installation of a ASA 5505 and are trying to get some NAT issues straightened out. Here is the scenario: On our internal network, we have two servers running Filemaker Server, a relational database server that clients connect with using port 5003. Our goal is to be able to allow users from the outside to access either of these servers as needed. I know how to set up a simple static NAT rule and matching Access rule in ASDM which would be fine for a case in which only one server using a given port is running on a network, but for simple static rules I seem to be blocked from entering a different translated port number from the orginal port number, which becomes a problem when two servers we need to access from the outside are running software using the same port number.
What is the simplest way to address this need? I am guessing that I need to set up a scenario like this, where port 5004 (or any arbitrarily choosen unused port, can be used to access the second server:
Outside user enters FQDN:5004 and this translates to Database server # 1 as 192.168.1.40:5003
and
Outside user enters FQDN:5003 and this translates to Database server # 1 as 192.168.1.38:5003
If so, what is the easist way to get this done? Or is there a better what to handle this scenario?
Thanks in advance,
JamesI would create two objects and use object NAT
object network Obj_5004
host 192.168.1.40
object network Obj_5004
nat (inside,outside) static service tcp 5003 5004
object network Obj_5003
host 192.168.1.38
object network Obj_5003
nat (inside,outside) static service tcp 5003 5003
Of course you will need to open your outside interface for tcp ports 5003 and 5004 to make this happen -
Using SSO for 2 partner application that different domainname
Dear expert,
I have to implement the Oracle SSO with 2 existing Web Application that separate domainname (eg. domainA.com and domainB.com). I have read from OTN the SSO using HTTP Cookie for partner applications but the standard cookie can not be accessed from different domainname.
Please, Who can help me on this case?
Thanks in advance,
KotaroReading and googling through much unclear RMAN content I came to the conclusion that it simply is not possible to use RMAN to copy SCHEMA_A from INSTANCE_A in MACHINE_A into INSTANCE_B without blowing away SCHEMA_B in INSTANCE_B on MACHINE_B.
So, I need to use RMAN to set up INSTANCE_A_COPY on MACHINE_B. Then I can have both INSTANCE_B and INSTANCE_A_COPY on MACHINE_B. If MACHINE_A should fail then I can switch over to MACHINE_A_COPY and run both instances, no problem.
Question: I would like to save time and disk space by not copying a 1TB reference tablespace/schema into INSTANCE_A_COPY. When I run INSTANCE_A_COPY it will need to join to the read-only reference tablespace/schema in INSTANCE_B. What will be the performance of a “distributed join” on tables across two instances in the same machine? -
Using one Itunes database across two macs
Using one itunes database across two macs
I currently run a 2010 MBP (500gb hd) at home and on the road and a 2013 Imac (1Tb hd) at work. I have a large lossless itunes library of about 300gb and would like to increase the library further.
My MBP started running slowly and I realised that my iTunes library was choking the whole computer. I started to explore ways to store my library on a remote disk and bought a G drive 1Tb portable drive.
My efforts to carry out the transfer were only partially successful with most of my library transferring but a significant number of tracks displaying the ! sign which means they couldn't be located.
I have also got an Imac at work and what I had hoped to achieve was to have my iTunes database on the 1tb portable drive and use the portable disk on both my MBP and iMac.
Our technical support company are dubious about whether this will work because the local specific itunes library data on each machine will differ and each machine will not operate correctly with the underlying data on the portable drive.
I am not very technical and I am finding it difficult to follow the various posts on this board and elsewhere. Many seem to comment on splitting their library across multiple disks but I cant really seem to get to the bottom of storing my library on one disk and using it across multiple computers.
Is what I am trying to achieve practical?
If it is, can someone point me to an article/post please? Or alternatively could someone explain how I might achieve my goal.
Thanks in a advance for your help.Here you go.
http://lifehacker.com/software/itunes/ultranewb--how-to-move-your-itunes-library -to-an-external-drive-238296.php
Maybe you are looking for
-
Media Encoder error about activation when exporting in activated version of Premiere CS4
I get the following error when I try to export media in Premiere CS4 (Note: I have a legal and activated copy of CS4 Master Collection). In Premiere, it appears to go through (the loading progress bar fills and then disappears) but when I check the f
-
Detect and employ PCI or PXI chassis
I'm currently on a project which has historically bee based around a PCI backplane (in a desktop PC) containing a couple of PCI-6229 cards and a PCI-7833R. This forms the core of a testrig of which there are about 25 instances worldwide. In additio
-
How to see what are the Tables avialable in DataBase
Hi , Is it possible to see what are the tables avialable in the Data base (I am using Oracle 10g Client ) Thanks in advance .
-
Single CAS NameSpace in Multi-Data Center Model With Exchange 2013
Hi We are in process of transitioning from Exchange 2007 to Exchange 2013. Our Exchange 2007 infrastructure is as follows: 2 Data centers (DC 1 and DC 2). Both with active user population. Both have their own direct Internet Connectivity Standalone E
-
How to make a round color box?
Can anyone walk me through the steps in making a round color box? Thanks in advance. Solved! Go to Solution.