Ejb wl5.1 client talking to ejb wl6.1 server?

I have a session ejb running in wl 5.1 that must act as a client of a wl6.1
ejb (wl 6.1 running on another host). Since the RMI layer is incompatible
between 5.1 and 6.1 I must jump through some hoops to get this to work. I've
considered packaging the wl6.1 classes together with the 6.1 client classes
in a separate jar, along with a helper class to use a separate classloader
to load classes from that jar (in the hopes of keeping the common rmi
classes in a separate namespace). Does this sound like the best approach?
Has anyone else faced this problem? What other solutions are there?
Thanks. - Miles

You can use direct socket communication (custom impl) or URLs to do
web-service style integration.
Peace,
Cameron Purdy
Tangosol, Inc.
Clustering Weblogic? You're either using Coherence, or you should be!
Download a Tangosol Coherence eval today at http://www.tangosol.com/
"Miles Krivoshia" <[email protected]> wrote in message
news:[email protected]..
I have a session ejb running in wl 5.1 that must act as a client of awl6.1
ejb (wl 6.1 running on another host). Since the RMI layer is incompatible
between 5.1 and 6.1 I must jump through some hoops to get this to work.I've
considered packaging the wl6.1 classes together with the 6.1 clientclasses
in a separate jar, along with a helper class to use a separate classloader
to load classes from that jar (in the hopes of keeping the common rmi
classes in a separate namespace). Does this sound like the best approach?
Has anyone else faced this problem? What other solutions are there?
Thanks. - Miles

Similar Messages

Deploy the EJB in Weblogic server

Hi all
How do deploy the EJB In WebLogic server ?
How do call the Deployed EJB from your client Program?
Plz...Help Me.........

How do deploy the EJB In WebLogic server ?first create ejb-jar.
then package ur ejb-jar inside an ear.
deploy this ear in weblogic. (i hope u know how to create a domain in weblogic. if not, refer weblogic online help)
How do call the Deployed EJB from your client
Program?while packaging the ejb-jar, u would have given some jndi names to ur APIs. use this jndi name to do a lookup on the context of ur server. u will get home interface. call create method on this interface. u get remote interface. now u can call the business methods.
in case u r clueless on wht i m talking abt, u got a long way to go. understanding the weblogic, ejbs, packaging, deployment, JNDIs is quite involving to say the least.
regards

Referencing EJB on remote server AND using deployment descriptor

We're using Weblogic 6.1sp2 under Windows 2000.
We have a web application on server A and several EJBs running on server B -
some of these may in the future be moved to different servers.
We would like to ensure that this only requires reconfiguring the deployment
descriptors.
In our web app, we access the EJB's like this:
AccountHome accHome = (AccountHome) (new
InitialContext()).lookup("java:comp/env/ejb/AccountHome")
- we then map ejb/AccountHome to the JNDI name in the weblogic.xml file in
the web app - the JNDI name will usually (but not always) be the class name
of the implementing class, e.g. system.billing.accounting.AccountHome
However, to make this work when the EJB is on server B, we must put a
jndi.properties file in the server A classpath containing
java.naming.provider.url=t3://server_b:7001/
to point to server B.
Now, this makes ALL JNDI lookups on server A go to server B - this is not
what we want. Especially not in the case where some EJB's move to server C -
B and C may be in separate clusters and will not be clustering the JNDI
tree. Also, other web applications on the server will need to go to
different servers.
Alternatively, we could specify a property set in the InitialContext
constructor with a provider url. But in that case, the mapping from
web.xml/weblogic.xml is apparently not applied - or rather, if we look up
"java:comp/env/ejb/AccountHome", weblogic maps it to
"system.billing.accounting.AccountHome" and then tries to look it up on the
local machine, server A.
If we look up "system.billing.accounting.AccountHome", it does correctly
look it up on the server specified in the provider url and finds the entry.
However, this would mean that we would have to specify the exact jndi name.
In addition, we would have to hard-code the server name for each lookup.
An alternative would be to "copy" the JNDI entries from server B to server A
(or to some other shared, global JNDI registry). But these would need to be
kept in sync - especially since server B is really a cluster, where
different servers may come online at different times and register their EJBs
as clusterable, so the stubs would need to be continously updated.
My best idea is to bypass the whole web.xml/weblogic.xml mapping scheme and
just add our own config file with stuff like
<mappings>
<map entry="java:comp/env/ejb/AccountHome">
<jndi-properties>
java.naming.provider.url=t3://server_b:7001/
java.naming.security.principal=jndiuser
java.naming.security.credentials=mysecretpassword
</jndi.properties>
<jndi-name>sysmte.billing.accounting.AccountHome</jndi-name>
</map>
</mappings>
We then need to wrap all the lookups in our own lookup mechanism which first
checks the config file to find any mappings.
However, this seems like reinventing the wheel and will also confuse most
deployment tools etc.
Does anybody have any suggestions where we
1. Don't put a jndi.properties file in the server classpath
2. Lookup ejb's using "java:comp/env/ejb/SomeEJB" - not the JNDI name.
3. Don't hardcode the server names in the application - but potentially
in the deployment descriptor.
4. Can look up different EJB's on different machines
Niels Harremoës

There is an article on dev2dev that may explain what you are seeing...
http://dev2dev.bea.com/articlesnews/discussion/thread.jsp?thread=142
HTH
dwfa
"Niels Ull Harremoës" <[email protected]> wrote in message
news:[email protected]...
It turns out that we can make it work by entering the url of the server in
the weblogic.xml entry - e.g. instead of having
<reference-descriptor>
<ejb-reference-description>
<ejb-ref-name>ejb/AccountHome</ejb-ref-name>
<jndi-name>system.billing.accounting.AccountHome</jndi-name>
</ejb-reference-description>
</reference-descriptor>
we enter
<reference-descriptor>
<ejb-reference-description>
<ejb-ref-name>ejb/AccountHome</ejb-ref-name>
<jndi-name>t3://server_b:7001/system.billing.accounting.AccountHome</jndi-na
me>
</ejb-reference-description>
</reference-descriptor>
However, we are unsure on whether this will establish a new JNDIconnection
to server_b on every lookup? And it's not documented anywhere?
Does anybody have any other suggestions?
"Niels Ull Harremoës" <[email protected]> wrote in message
news:[email protected]...
We're using Weblogic 6.1sp2 under Windows 2000.
We have a web application on server A and several EJBs running on serverB -
some of these may in the future be moved to different servers.
We would like to ensure that this only requires reconfiguring thedeployment
descriptors.
In our web app, we access the EJB's like this:
AccountHome accHome = (AccountHome) (new
InitialContext()).lookup("java:comp/env/ejb/AccountHome")
- we then map ejb/AccountHome to the JNDI name in the weblogic.xml file
in
the web app - the JNDI name will usually (but not always) be the classname
of the implementing class, e.g. system.billing.accounting.AccountHome
However, to make this work when the EJB is on server B, we must put a
jndi.properties file in the server A classpath containing
java.naming.provider.url=t3://server_b:7001/
to point to server B.
Now, this makes ALL JNDI lookups on server A go to server B - this is
not
what we want. Especially not in the case where some EJB's move to serverC -
B and C may be in separate clusters and will not be clustering the JNDI
tree. Also, other web applications on the server will need to go to
different servers.
Alternatively, we could specify a property set in the InitialContext
constructor with a provider url. But in that case, the mapping from
web.xml/weblogic.xml is apparently not applied - or rather, if we look
up
"java:comp/env/ejb/AccountHome", weblogic maps it to
"system.billing.accounting.AccountHome" and then tries to look it up onthe
local machine, server A.
If we look up "system.billing.accounting.AccountHome", it does correctly
look it up on the server specified in the provider url and finds theentry.
However, this would mean that we would have to specify the exact jndiname.
In addition, we would have to hard-code the server name for each lookup.
An alternative would be to "copy" the JNDI entries from server B to
server
A
(or to some other shared, global JNDI registry). But these would need tobe
kept in sync - especially since server B is really a cluster, where
different servers may come online at different times and register theirEJBs
as clusterable, so the stubs would need to be continously updated.
My best idea is to bypass the whole web.xml/weblogic.xml mapping schemeand
just add our own config file with stuff like
<mappings>
<map entry="java:comp/env/ejb/AccountHome">
<jndi-properties>
java.naming.provider.url=t3://server_b:7001/
java.naming.security.principal=jndiuser
java.naming.security.credentials=mysecretpassword
</jndi.properties>
<jndi-name>sysmte.billing.accounting.AccountHome</jndi-name>
</map>
</mappings>
We then need to wrap all the lookups in our own lookup mechanism whichfirst
checks the config file to find any mappings.
However, this seems like reinventing the wheel and will also confuse
most
deployment tools etc.
Does anybody have any suggestions where we
1. Don't put a jndi.properties file in the server classpath
2. Lookup ejb's using "java:comp/env/ejb/SomeEJB" - not the JNDIname.
3. Don't hardcode the server names in the application - butpotentially
in the deployment descriptor.
4. Can look up different EJB's on different machines
Niels Harremoës

REMOTE DESKTOP SERVICES CLIENT ACCESS LICENSES FOR MICROSOFT WINDOWS SERVER 2012 STANDARD AND DATACENTER

I am using a window 7 professional service pack 1 and I purchase REMOTE DESKTOP SERVICES CLIENT ACCESS LICENSES FOR MICROSOFT WINDOWS SERVER 2012 STANDARD AND DATACENTER. but the seller did not send me any installation CD or instruction
on how to use it.
Please how can I use it on my window 7 professional service pack 1.
Thank you.

Though Bill is absolutely correct for most CALs, Remote Desktop Services does have its own special licensing server. I haven't installed one on 2012, yet, but here is a step-by-step guide for 2008.
http://technet.microsoft.com/en-us/library/dd983943(v=ws.10).aspx
Here is a lab guide for 2012 -
http://technet.microsoft.com/en-us/library/jj134160.aspx
But, the explanation of your environment begs the question - what are you trying to do? You say you have a desktop OS and you are talking about Windows Server products. In that light, your question does not make a lot of sense.
. : | : . : | : . tim

PHD Clients default Save dialogs point to server if available

10.6.x PHD clients seem to default to the SERVER home folder (if it's available as a result of syncing or being on the LAN) This is quite a nuisance, as a user might be saving a file and then sleeping and taking their laptop home only to find it's on the server not in their local home folder.
Anyone else noticing this? Is this a new behavior? Possibly a misconfiguration on my behalf?
This command:
dscl /Local/Default -read /Users/<username> | grep Directory
Shows the following various parameters:
NFSHomeDirectory: /Users/$USER
OriginalHomeDirectory: <home_dir><url>afp://server.domain.net/Users</url><path>$USER</path></home_dir>
OriginalNFSHomeDirectory: /Network/Servers/server.domain.net/Users/$USER
It seems the open/save dialogs are using OriginalNFSHomeDirectory

I'm seeing the same for some clients and not for others, The clients are running 10.6.1, but are talking to 10.5.8 Server.
Each Mac was upgraded to 10.6 from 10.5.8 show the problem, Macs that were clean installed to 10.6 don't have this behaviour.
It looks like something to do with a preference that isn't coming across correctly from 10.5. I've already removed the ~/Library/Preferences folder as well as filesync, but no change.
Changing the affected users OriginalNFSHomeDirectory in Workgroup manager to /Users/username (so it points locally) doesn't fix the problem either.
I'm upgrading our servers to 10.6 in 2 weeks, I'm wondering if when the servers 'know' about 10.6 clients it will work correctly again...
Any ideas Anyone?

Regarding mountain lion server: clients experience intermittent service connections. the server system log has the following error- Client handshake failed (6):113: Server not accepting client connections (any ideas???)

regarding mountain lion server: clients experience intermittent service connections. the server system log has the following error- Client handshake failed (6):113: Server not accepting client connections. any suggestions would be greatly appreciated - thank you

Hi Jason
I was getting the same behavior after Apple support had me delete some plist files to get Airplay going. I was also getting the following error:
the error occurred while processing a command of type 'writesettings' in the plug-in 'server vpn'
I went into ~/Library/Preferences/ and /Library/Preferences/ and deleted every plist contating the word server. I had to re-set up my server (meaning walk through some intial steps) but all of my settings were still there after that and everything started working again.
Just a thought, obviously try at your own risk but it worked for me.
Kellen

Imp:How to find out whether client authentication Enabled on the Web Server

Hi,
I am trying to find out whether the Client Authentication Enabled on the Web Server or not.
Reason for doing this, if we have two certificates in the key store which will authenticate the Web Server, JSSE Authentication will always take the first cert from the keystore. If the first Certificate is Expired, it will fail while doing the HandShake.
So if I can find out whether Client Authentication is Enabled or not, then I can prompt a dialog for the user to select the Certificate for the Hand Shake.
Thanks in advance for any Response,
Krish.

AUTH_TYPE will tell you only if it SSL or not. It won't say whether the Client Certificates Required for SSL Connection.
Also, AUTH_TYPE is not part of the Http Headers.
If there is any other solution, greatly appreciated.
Thanks
Krish.

Exchange 2013 - Prevent Outlook Clients From Connecting To A CAS Server In A Different AD Site

Hi all,
I could really do with your help!
We have 3 physical sites, A, B & C, with sites A & B having a really fast low latency links between them, so from an AD point of view they are 1 site. Site C has links to both sites A & B, but the link is a lot slower.
We have an exchange design with 3 servers (one located at each physical site) that will form a DAG spread over the 3 physical sites. Ideally we will separate the CAS and mailbox server roles out and have them controlled by a hardware load balancer,
however we can have both roles on the same server if required.
What we want, is to prevent is a situation where an outlook client in site C connects to a CAS server in site A/B with the mail being hosted on a mailbox server in site C therefore traversing the network twice to get its mail.
From doing the Microsoft training course, my understanding is that in Exchange 2013, the CAS server only proxy's the request on to the mailbox server and does not redirect the request to the CAS server in the site where the mailbox server resides.
I have seen information online stating that a single namespace is the way to go as long as your site links/network bandwidth is good, but nothing to help with our scenario.
Has anyone else come across this situation and how did you get round it?
Thanks in advance :)

Hi Johnson,
Based on my knowledge, Outlook Client will connect to the CAS server which in local first.
Please check whether the CAS server that in site C is healthy.
If the CAS server in site C is healthy, please disable the CAS Load Balance for testing.
Also found a useful blog for your reference:
Exchange 2013 Client Access Server Role
http://blogs.technet.com/b/exchange/archive/2013/01/25/exchange-2013-client-access-server-role.aspx
Thanks
Mavis
Mavis Huang
TechNet Community Support

Clients can't rejoin domain after server clean install

Hello, I've got an issue with having client computers rejoin the domain after reinstalling the server software. Another post I read suggested saving the plist files to get the settings the same, but I need to reconfigure manually to eliminate some other problems we've been having.
We've got an Xserve running 10.4.8 with a mix of XP and Tiger clients all authenticating with the server. Our XP clients have remote profiles converted to local and our Tiger clients use mobile accounts. Generally things were running OK, but we kept having some authentication issues and have SMB crashes. In reviewing our log files it was suggested that our Open Directory was messed up (probably during our upgrade from 10.3 to 10.4) and that a clean install was the best course of action. The server has been running 24x7 for over 3 years without any signifigant maintenance, so this seemed like a good idea.
Everything was going great. I did the clean install and had DNS and DHCP configured and working, then started setting up Open Directory as the PDC and Windows Services as the Primary WINS. I had intended to recreate the user accounts because I didn't want to reintroduce problems by restoring the settings, however when I added one account and tested logging in on a XP machine it couldn't authenticate even though the domain name and user name was the same as before (short names too). On a whim, I moved the computer from the domain to WORKGROUP and then rejoined the (new) domain. Upon login it created a new roaming profile named user.domain instead of using the other account already there. On the XP client in accounts, the old profile showed up as unknown. I then went to a Mac and tried to log in and had similiar issues not finding the authenticating server.
After pulling my hair out this evening and realizing that there was no way I was going to have the office operation in the morning, I did a full restore from backup and pretended like I hadn't just wasted my weekend. After I got the server running, I was able to get my client machines to see the domain again and all is as it was.
Soooo, now the question is how do I create a clean installation with newly created user accounts and get the client computers to recognize the domain server as the same old one? Is there a hidden domain ID or something that is telling the client computers that it isn't the same domain or LDAP server? Any suggestions would be greatly appreciated.
Thanks.
xserve G4 & XRaid Mac OS X (10.4.8)

Sorry, to clarify I did not want to use the archive & restore because I didn't want to reintroduce the errors I was trying to eliminate. I setup the Open Directory as a PDC from scratch and then ran into the client authtenication issue. In a desperate attempt to salvage the situation I did restore the previous settings which (A) didn't work and (B) may have made things worse because I already had created some groups and a few users and ended up with groups with duplicate IDs. That was when I scrapped everything and restored the disk from backup.
Your idea of using export/import is a slightly different avenue. However, now that I'm thinking about it, I didn't even get far enough for the user profiles to be an issue because the client computers weren't even communicating with the server to get the list of users (the Macs log-in by selecting a user name from a list).
Does export/import of a computer list work? I think I tried to import the computer list last night and the one I had only contained the Macs and these didn't preserve the MAC address info for some reason. I didn't have an export of the XP machines, but tried to manually add them to the list with no success.
Thanks again for your help.

2 Clients with Production Role in Production server , possible ?

My company has implemented 2 Systems SAP Landscape with one development and one production server. So far , we have one client in Production server been configured with Production role and one more is configured with customizing role.
If possible to configure the client with customizing role in production server to production role ? I tried but the syatem always tell me that a client with production role is already exist.
Kindly advise .
Thanks.
Leon

Hi, Rohit :
Once again . Thanks for your input .But , I really can't try what you are suggesting here as my production system is running 24 hours per day and I can't really take the risk by just trying open and close the existing client with production role . Based on your 1st reply , you said that Production system is possible to have 2 clients with production role . If it is so , there should be settings that I could configure to achieve this rather than trying to reconfigure the existing client with production role.
Thanks.
Leon
Edited by: Leon Wong on Apr 27, 2009 11:49 AM

Client 10g fail to connect to server 8i

Hi everybody. We're having some trouble when a machine with oracle 10g client tries to connect to a server running oracle 8i (8.1.7.0). In fact, we can't connect. The error message that arises with sqlplus is ORA-12564 (connection refused). Changing the client to version 8i, it works fine. Looking at the docs from Oracle, 10g client should be able to connect to 8i, but we can't.
Any ideas?? I have only access to the machine with the client, the server is administrated by other people.

There is a bug/ issue where the 10g client cannot connect to any version of the database prior to 8.1.7.4, the terminal 8.1.7 patchset. It is expected that this will be resolved in the first 10g patchset, allowing connections to 8.1.7.0 and higher databases. In the meantime, you can either use an earlier version of the client or ask that the server be upgraded to the latest patchset (which probably isn't a bad idea for other reasons).
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.

try
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
mail.From = new MailAddress("[email protected]");
mail.To.Add("[email protected]");
mail.Subject = "Test Mail..!!!!";
mail.Body = "mail with attachment";
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment(@"C:\Attachment.txt");
mail.Attachments.Add(attachment);
SmtpServer.Port = 587;
SmtpServer.UseDefaultCredentials = true;
SmtpServer.Credentials = new System.Net.NetworkCredential("userid", "Password");
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
Catch(Exception exception)
When i m run this part of code it throw an Ecxeption
Given Below is the Error..
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.
Bikky Kumar

try
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
mail.From = new MailAddress("[email protected]");
mail.To.Add("[email protected]");
mail.Subject = "Test Mail..!!!!";
mail.Body = "mail with attachment";
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment(@"C:\Attachment.txt");
mail.Attachments.Add(attachment);
SmtpServer.Port = 587;
SmtpServer.UseDefaultCredentials = true; ///Set it to false, or remove this line
SmtpServer.Credentials = new System.Net.NetworkCredential("userid", "Password");
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
Catch(Exception exception)
Given Below is the Error.. The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.
Solution:
The error might occur due to following cases.
case 1: when the password is wrong
case 2: when you try to login from some App
case 3: when you try to login from the domain other than your time zone/domain/computer (This
is the case in most of scenarios when sending mail from code)
There is a solution for each
solution for case 1: Enter the correct password.
Recomended: solution for case 2: go to
security settings at the following link https://www.google.com/settings/security/lesssecureapps and
enable less secure apps . So that you will be able to login from all apps.
solution 1 for case 3: (This might be helpful) you need to review the activity. but reviewing the activity will not be helpful due to latest security
standards the link will not be useful. So try the below case.
solution 2 for case 3: If you have hosted your code somewhere on production server and if you have access to the production server, than take remote
desktop connection to the production server and try to login once from the browser of the production server. This will add exception for login to google and you will be allowed to login from code.
But what if you don't have access to the production server. try
the solution 3
solution 3 for case 3: You have to enable
login from other timezone / ip for your google account.
to do this follow the link https://g.co/allowaccess and
allow access by clicking the continue button.
And that's it. Here you go. Now you will be able to login from any of the computer and by any means of app to your google account.
Regards,
Nabeel Arif

Which clients are using my Sun One server for authentication?

We use Sun One ver. 5.2 .
Our LDAP clients use it for authentication.
How can I list which clients recently used the Sun One server to authenticate?
The reason I need that is because I want to upgrade the Sun One server and I want to notify the clients that I'm about to do it.
Thanks.

https://www.redhat.com/archives/fedora-directory-users/2005-September/msg00010.html
Useful script to extract LDAP based user posixGroup memberships information
===
Assuming you are using posixGroup objectclass and memberUid attribute to
store your membership information, you may find my shell script useful
and handy.
It works on Solaris LDAP Client with "ldapaddent" and "ldaplist"
commands, and works against FDS, SUN DS or OpenLDAP.
===
Gary

Is there Ready Made Configuration Packs available for Lync Client ( Client on end user computer ) and Server

Hi,
is there Ready Made Configuration Packs available for Lync Client ( Client on end user computer ) and Server ... to check the configuration, services,compliance, functionality of all the features etc at end user level
and server configuration packs
Regards
Tanoj
OSLM ENGINEER - SCCM 2007 & 2012

No, there is not something available for Lync. What's available can be found here (and it's all not recent):
https://www.microsoft.com/en-us/search/DownloadsDrillInResults.aspx?q=SCCM+%22configuration+pack%22&cateorder=2_5_1&site=
My Blog: http://www.petervanderwoude.nl/
Follow me on twitter: pvanderwoude

Common reason for Mirage Server Failure in Clustered Environment and how clients will be switched to other server in a cluster

Hi,
Can Anybody share me the information regarding Common reason for Mirage Server Failure in Clustered Environment.
And how clients will be switched to other server in a cluster to continue their operations from the failed server.
Regards,
Bathesha C

Hello,
if you have more than one mirage server configured with Load balancing (LB or MSFTNLB) the client would disconnect from the faulting server and then reconnect to an other server to progress with the action as before.
All Mirage server are stateless and share the same SIS (single instance store) so any server can update or create CVD file set for an client.
Hope that helps.

Ejb wl5.1 client talking to ejb wl6.1 server?

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