Distributed tx example

Hello,
I have a question about the Distributed Tx example demonstrating the JDBC2.0 features.
I have two instances of oracle 816 installed on 2 machines, and i have built the example as per instructions, with the user travel on one database and the user global on the other....when i run the example, and there is a problem with one update, the first update gets committed nevertheless, and is not rolledback.....this is the output:
tx 1 with id = oracle.jdbc.xa.OracleXid@477979e3 started
tx 2 with id = oracle.jdbc.xa.OracleXid@475979e3 started
java.sql.SQLException: ORA-00942: table or view does not exist
tx 1 with id = oracle.jdbc.xa.OracleXid@477979e3 ended
tx 2 with id = oracle.jdbc.xa.OracleXid@475979e3 ended
tx 2 with id = oracle.jdbc.xa.OracleXid@475979e3 being prepared
tx 1 with id = oracle.jdbc.xa.OracleXid@477979e3 being prepared
travel
XAResource.XA_OK=true
XAResource.XA_RDONLY=false
global
XAResource.XA_OK=false
XAResource.XA_RDONLY=true
(l_prepareTravel == XAResource.XA_OK)| |(l_prepareTravel==XAResource.XA_RDONLY)=true
travel okay
in travel true
tx 1 with id = oracle.jdbc.xa.OracleXid@477979e3 committed
Transaction Error oracle.jdbc.xa.OracleXAException
It seems the boolean that checks the commit is never set to false, and so one transaction commit........
also, if I just check check sth like :
(l_prepareGlobal == XAResource.XA_OK) && (l_prepareTravel == XAResource.XA_OK)
and then try to commit or rollback, this is what happens:
tx 1 with id = oracle.jdbc.xa.OracleXid@91017939 started
tx 2 with id = oracle.jdbc.xa.OracleXid@91297939 started
java.sql.SQLException: ORA-00942: table or view does not exist
tx 1 with id = oracle.jdbc.xa.OracleXid@91017939 ended
tx 2 with id = oracle.jdbc.xa.OracleXid@91297939 ended
tx 2 with id = oracle.jdbc.xa.OracleXid@91297939 being prepared
tx 1 with id = oracle.jdbc.xa.OracleXid@91017939 being prepared
travel
XAResource.XA_OK=true
XAResource.XA_RDONLY=false
global
XAResource.XA_OK=false
XAResource.XA_RDONLY=true
Transaction Error oracle.jdbc.xa.OracleXAException
Error in Getting Rate java.sql.SQLException: ORA-00060: deadlock detected while
waiting for resource
I would appreciate very much if someone explains this......
regards,
farhat
null

Hi Farhat,
Thanks for pointing out this problem.
When the
java.sql.SQLException: ORA-00942: table or view does not exist
exception is raised, the previous update on the travel user is already executed and jumps to the Exception handling part. So the transaction is not ended nor the commit or rollback is done.
Then when the database is queried to get the current exchange rate (from the Travel user), it returns the updated value as the transaction is still not complete. But the value in the database will be still be the
old value as the commit is not done. The conclusion is that the value
shown by the application is new value but the database has the old value.
To correct this problem the Exception handling part should roll back the
database to the previous state. So that while the data is fetched from the database for displaying it, the old value is displayed.
If you let us know your email id, we can email the corrected code to you.
In the second part we cannot do the following check :-
(l_prepareGlobal == XAResource.XA_OK) && (l_prepareTravel ==
XAResource.XA_OK)
as the Prepare will return either XA_OK for one only and the other will
be XA_RDONLY when both the resource managers are same.
This following code
if (l_prepareTravel == XAResource.XA_OK)
if (l_doCommit)
l_xaResourceTravel.commit(l_xidTravel, false);
else
l_xaResourceTravel.rollback(l_xidTravel);
if (l_prepareGlobal == XAResource.XA_OK)
if (l_doCommit)
l_xaResourceGlobal.commit(l_xidGlobal, false);
else
l_xaResourceGlobal.rollback(l_xidGlobal);
will take care to commit or rollback the database when both are ok or any one fails.
Get back to me if you have more doubts.
Thanks,
Srini.

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>>> Is it possible for users to access the Rtf
Objects Editor? If not, is it
>>> possible for Authorware to open the filename
contained in a variable
>>> using
>>> Microsoft Word?
>>>
>>
>>
>
>

Posting changes from EWM to ECC

Hello dear experts
When I create a posting change in EWM, for example to change stock type from F1 to F2, a message is sent to ERP using goods movement interface. Usually in ERP a 311 movement is created to move the stock from one storage location to another.
Anyway, the HU data in ERP does not get updated. In HUMO you still see it in old storage location.
Is it possible to generate a delivery in ECC from EWM posting change?
I would like not to go through direct deliveries as they are creating STO in ERP and require a unique customer for each storage location, which is difficult because it would require changes to intecompany model .
Does anyone have a solution?
Thanks
Best regards
Carlo

Hello Sathish
To my understanding, when a posting change delivery itself is created in ERP and distributed (for example a DTR delivery type) the system finds a predecessor and uses delivery interface
And also, when you are creating a posting change for an HU linked to a delivery, and the HU was not moved yet to a final storage type, /SPE/GOODSMVT_CREATE fm is called with reference to the delivery. This if you did the customizing for inbound deliveries under "Interfaces/ERPIntegration/Set Control Parameters for ERP Version Control
In ERP you will see the posting change in document flow for delivery
That's all I know..
Best regards
Carlo

Very simple example of distributed cache

Hi,
I followed the getting started guide and I have a config xml that lists a VirtualCache. Then I wrote a very simple main class, TestCache1 that does this:
private static NamedCache cache = CacheFactory.getCache("VirtualCache");
public static void main(String[] args) {
cache.put("hello", "hello");
and then a TestCache2 that gets the value:
private static NamedCache cache = CacheFactory.getCache("VirtualCache");
public static void main(String[] args) {
Object hello = cache.get("hello");
System.err.println(hello);
so I run TestCache1 and then i run TestCache2, but the result is "null". I have a very basic problem where I want one java class to add stuff to a cache that another java process can access. WHat do I need to do?
Thanks, Jason

Hi,
Yes I started up both test classes using the same configuration file but it's just not working. Here's the config file:
+<cache-config>+
+<caching-scheme-mapping>+
+
+<cache-mapping>+
+<cache-name>*</cache-name>+
+<scheme-name>default-replicated</scheme-name>+
+</cache-mapping>+
+<cache-mapping>+
+<cache-name>VirtualCache</cache-name>+
+<scheme-name>default-distributed</scheme-name>+
+</cache-mapping>+
+</caching-scheme-mapping>+
+<caching-schemes>+
+
+<replicated-scheme>+
+<scheme-name>default-replicated</scheme-name>+
+<service-name>ReplicatedCache</service-name>+
+<backing-map-scheme>+
+<class-scheme>+
+<scheme-ref>default-backing-map</scheme-ref>+
+</class-scheme>+
+</backing-map-scheme>+
+</replicated-scheme>+
+
+<distributed-scheme>+
+<scheme-name>default-distributed</scheme-name>+
+<service-name>DistributedCache</service-name>+
+<backing-map-scheme>+
+<class-scheme>+
+<scheme-ref>default-backing-map</scheme-ref>+
+</class-scheme>+
+</backing-map-scheme>+
+</distributed-scheme>+
+
+<class-scheme>+
+<scheme-name>default-backing-map</scheme-name>+
+<class-name>com.tangosol.util.SafeHashMap</class-name>+
+</class-scheme>+
+</caching-schemes>+
+</cache-config>+
Thanks again, Jason

Can someone point me to vsphere api to delete portgroup on a distributed virtual switch usoing vsphere api.I need the api or example to programmatically delete distributed portgroups

can someone point me to vsphere api to delete portgroup on a distributed virtual switch usoing vsphere api.Please post this to another forum if needed

Or atleast, how do you do a table export using dbms_datapump ?

I need an example of CXF webservice to deploy on Weblogic 10.3.2 Portal Server

Hi All,
I was struggling to deploy a simple CXF Webservice over WeblogicPortal 10.3.2. Can someone give steps using maven?
Regards,
Swaroop Kunduru.

Hi,
Reproducing this issue is very easy.....
1). Just Create a Admin and Managed Server
2). Start AdminServer then from Admin Console Disable the normal listen-port for admin Server (suppose it was 7001 disable it)....AND enable only the SSL port for Admin Server (example 7002).
Managed Server (Listen Port=7003 and SSL ListenPort=7004)
3). Now Try Start Managed Server.
you wil get the Exact same exception
<Jan 20, 2010 6:03:19 PM CST> <Error> <Configuration Management> <BEA-150000> <An error occurred while establishing a connection back to the adminstration server t3://140.126.24.25:6001 during startup. Since bootstrap succeeded check that t3://140.126.24.25:6001 uniquely identifies the administration server.
javax.naming.ServiceUnavailableException [Root exception is java.rmi.NoSuchObjectException: The object identified by: '31' could not be found. Either it was has not been exported or it has been collected by the distributed garbage collector.]
And
<Emergency> <Management> <BEA-141151> <The admin server could not be reached at http://140.126.24.25:6001.>
Now it will be easy for us to find out where is the issue actually.
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)
Edited by: Jay SenSharma on Feb 24, 2010 4:15 PM

Distributed Cache service stuck in Starting Provisioning

Hello,
I'm having problem with starting/stopping Distributed Cache service in one of the SharePoint 2013 farm servers. Initially, Distributed Cache was enabled in all the farm servers by default and it was running as a cluster. I wanted to remove it from all hosts
but one (APP server) using below PowerShell commands, which worked fine.
Stop-SPDistributedCacheServiceInstance -Graceful
Remove-SPDistributedCacheServiceInstance
But later I attempted to add the service back to two hosts (WFE servers) using below command and unfortunately one of them got stuck in the process. When I look at the Services on Server from Central Admin, the status says "Starting".
Add-SPDistributedCacheServiceInstance
Also, when I execute below script, the status says "Provisioning".
Get-SPServiceInstance | ? {($_.service.tostring()) -eq "SPDistributedCacheService Name=AppFabricCachingService"} | select Server, Status
I get "cacheHostInfo is null" error when I use "Stop-SPDistributedCacheServiceInstance -Graceful".
I tried below script,
$instanceName ="SPDistributedCacheService Name=AppFabricCachingService"
$serviceInstance = Get-SPServiceInstance | ? {($_.service.tostring()) -eq $instanceName -and ($_.server.name) -eq $env:computername}
$serviceInstance.Unprovision()
$serviceInstance.Delete()
,but it didn't work either, and I got below error.
"SPDistributedCacheServiceInstance", could not be deleted because other objects depend on it. Update all of these dependants to point to null or
different objects and retry this operation. The dependant objects are as follows:
SPServiceInstanceJobDefinition Name=job-service-instance-{GUID}
Has anyone come across this issue? I would appreciate any help.
Thanks!

Hi ,
Are you able to ping the server that is already running Distributed Cache on this server? For example:
ping WFE01
As you are using more than one cache host in your server farm, you must configure the first cache host running the Distributed Cache service to allow Inbound ICMP (ICMPv4) traffic through the firewall.If an administrator removes the first cache host from
the cluster which was configured to allow Inbound ICMP (ICMPv4) traffic through the firewall, you must configure the first server of the new cluster to allow Inbound ICMP (ICMPv4) traffic through the firewall.
You can create a rule to allow the incoming port.
For more information, you can refer to the blog:
http://habaneroconsulting.com/insights/Distributed-Cache-Needs-Ping#.U4_nmPm1a3A
Thanks,
Eric
Forum Support
Please remember to mark the replies as answers
if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]
Eric Tao
TechNet Community Support

How the JVM SHOULD be distributed (interesting)

Well I sent this document to the JCP maybe it will be better off there....
Sun needs a new JAVA marketing strategy.
Opinions expressed here are of my own, Matt Prokes, remember these are only opinions about what should or could be.
If you have ?'s contact me at [email protected]
What Java's Problem Is:
As far as I can see the only problem that java has these days is the client inconsistencys, this is due to Microsoft and there attempted dustruction of the HUGE java language, and Microsoft has succeeded wonderfully thus far, which is sad. I feel it is only due to the way Sun markets Java, not that they have not tried but they are going about it the wrong way.
Sun Feels They Are Being Oppressed:
It seems to me that Sun has a feeling of being oppressed by Microsoft, they see the company inflicting standards on the computing world that are self centered and platform specific, this is why java was created, to break that mold and it does it wonderfully but java has not gained populatiry because of marketing technique, no, it has gained popularity because it REALLY is what it is cracked up to be....A better way of doing things....
That is why sun landed the title of being one the the most innovative companys today by the magazine �PC World� ranking 13th place while Microsoft landed 137th (i think).
Yet with all this technology sun does not try to inflict it's standards on the PC world, well you might think what about all those court cases, for instance the most recent that suggests that Sun wants to FORCE Microsoft to install their JVM. I think stuff like this just slows Sun down, as we learned with previous cases Microsoft is just to big to fight and if you do manage to win it will be 3-4 years later. If you think about it time is money, why waste time? Trying to leach off of Microsoft is NOT the way to inflict standards, infact it is one of the worst ways because by the time you would have won microsoft would have bullied the java enviroment to it's grave (umm .net). So you may ask how do we enforce standards without the help of microsoft, the answer is more simple than you may think yet for some reason it has not been thought of by Sun. So far this is what has brought microsoft to the top.
1.Great Software
2.Enforced Standards, and Implementation
3.Excellent Marketing
4.Protected Software (Ideas)
5.Industry Wide Support
Innovation is not on this list, Microsoft does not have a innovative bone in it's body at the moment, it just buys technology that it needs, and has flashy GUI's, and a huge amount of support in the software industry. This is why according to the magazine �PC World� microsoft ranks #137 in innovation while Sun sits at a satisfying ranking of #13.
What this means is that Sun just is more innovative, it has technology out there that could be used but it can't because we have clients with Version 1.3 Java software on their PC's, Either that or Propietary and NOT PLATFORM INDEPENDENT Microsoft JVM's which Microsoft will again start to distribute in 2004 on XP, this brings me to my first point, if we are going to have a platform independent language it needs to come from ONE POINT that will be implemented by all Manufactures (the W3C for instance). You may be thinking well how do you enforce the SUN JVM if microsoft does not pack it with windows? The answer is you do what most new companys do and that is goto the PC Vendors. I would like to point out that microsoft is for the most part ONLY a software company (aside from some of there PC products), but they do not build and distribute PC systems, thus microsoft does not control what can go on a PC, I would like to point out the growing Linux threat to windows, more particulary the linux based operating system (Lindows) recently lindows has aquired a deal with walmart to sell there operating system as a subsitute to windows, this worked out phenominaly and right now walmart cannot seem to keep enough of the pc's on the shelves (since they cost only about 199$). Case point linux has also grown enormously due to �Home Editions� of linux (Red Hat). The first point I would like to make is that Sun should be PAYING vendors to install the SUN JVM over the microsoft one, this takes care of a few of Sun's problems (Not as much industry support as microsoft, and upgrading the JVM) all this can be done for a measily 5-6 million a year and will reach about 70% of the PC sector, infact I am almost certain this is how microsoft started out.
One Of Java's Big Problems JVM Inconsistencys
Now if Sun locks 70% of the PC market that will already be a large boost for java, but the question is how to make the percentage grow to 100%... I would now like to point out the company Macromedia, macromedia products are phenominal, and have changed the way media is seen on the web, particularly the Flash product that macromedia sells, now at this moment macromedia has stated that >90% flash support exists on the web today and >70% is with the most current version of flash, as I see it infact flash is one of the most universally supported pieces of software even more so than microsoft, this is why you see flash movies on yahoo, cnet, amazon, and even MSN! So you may ask what made flash what it is today? Well as described before flash is supported and installed by PC vendors, and even if it is not you can bearly go any place on the web with out getting a message stating that you should upgrade to the most current version of flash, this is due to the wide support on the web..... Now on the other hand if I run a java applet and the applet was compiled with some new features that were not supported in version 1.3 (Swing for example) we will get an error message stating that the package cannot be found and the applet will not run...You do not get any messages to upgrade, no window prompts, nothing..which brings me to my next point the java compiler should include the code (a pre JVM 1.3 version & microsoft JVM compatiable) that will prompt you to install the most current version of Java you already see default loaders for swing, a plugin check should also be included in all programs to ensure that you have to most recent version, and if you do not then it will send you to the Sun Website, or display a update manager or something. Getting an error saying that the applet packages are not found does not help the user any it only frusterates them, you have to physically provide a remedy to the problem at hand. This should also check to see if the microsoft JVM is installed and if it is prompt to upgrade to the Sun JVM, this will pretty much distroy the use of the microsoft JVM.
This takes care of the enforcing standards part, braudens the Industry Wide Support, and protects the java enviroment, last but not least you need to promote the software, Java already does this excellently with webservices, and other things but there are more consumers than businesses and Java should also be concentrating more on the excellent 3d support that they have, the networking features of java, ect. Take OpenOffice.org for instance the product has grown emmensly since it has started and much uses Java API's, you would see much growth in Java if you provided other products like Open Office for free, for instance a Quake Like Multiplayer game in Java 3D distributed on an open source enviroment, in applet form (since applets are exclusivly a invention of Java), and then have a couple of servers set up that people can play for free on Sun's site, more networking app's for free, ect. You have to promote some of the more flashy features of Sun this way in order to see more growth and support and for free (learn from linux which is quickly becoming a HUGE threat for microsoft) if sun is making 13 billion a year I see no problem to them sporting a couple of servers with some USEFUL online apps/games/ect that sport how innovative java really is, and if they really need to they can have all the banners on stuff like the online games, take Http://www.runescape.com that sports an average of 10,000 users at any moment using the cross platform Java 3d API and they do it for free! All open source free products should be on Suns website, it shows how strong of a community Sun really is, instead of having it on some other website like www.openoffice.org that only sports Sun's name maybe a few times you might occasionally see a logo.. it would be better to maybe get open office from an address like www.openoffice.sun.com, maybe try a www.games.sun.com address or a www.apps.sun.com and then advertise the stuff that can be found at the Sun website. Sun should be proud to be open source, it is the only thing microsoft can't buy....
Opinions Of Matt Prokes..
[email protected]

Sun should be proud to be open source, it is the only thing microsoft
can't buy....Thats the only line of your whole pointless post that I read.
Since when is "sun" open source. I imagine you mean java. Java isn't open source, what makes you think it is? You can get the source for it and modify it to suit ur needs as per the license but this isn't really open source.. is it?
Anyway, don't waste space with your crap here, send an e-mail to somebody at sun instead, its just a waste posting this here.

How to distribute the serial core only with my exe and DLL application using the Labview application builder 8.21. I'm not interested having MAX and other components installed on the customer PC and in the program menu

Since Labview ver 8.0 and later, I am not very happy with the new way the project installer is managing the additional drivers such as Serial.
With LV 7.11 the serial components was included in the cab file and was installed on the target computer in a specific directory. The size of the distribution was pretty small and well suited for compact distribution.
My LV application use only the serial object and with LV 8.21, if I include the serial 3.2 component, I get an enormus file including max, visa ... and a lot of fucky component I do not need.
To distribute my application, I just need, the runtime engine and the serial driver as it was with the version 7.XX
Looking for clever advises from you gentlemen!

Thanks Dennis for you input
My problem is in fact very simple. 3 years ago, I developped a software suite for X ray generator; My company is selling such generator all over the world and our control panel software and DLL (for OEM integrator) is based on Labview professionnal development plateform.
To drive our generator, we just need to transfer ascii data using the strandard RS232 port still present on most of equipments used in the industrial area.
Until LV version 7.11, there was no problem to include serial component in my distribution with a very reasonable size and transparency for the end user.
with LV 8.xx (preparing a new release), I'm very disapointed to see, my distribution is increased of about for 10 Mo to 180 Mo just because I increase the serial component.
May I mix a previous version of the serial component with LV 8.21?
Should I change my source to Visa instruction only and merge visa runtime only to my distribution?
is there any simple serial example based on visa and distributed with th application builder?
I will appreciate your help in order to optimize my distribution
Pascal

How to process one message at a time on a distributed queue

I have a situation where I need to execute/process a task of a type
          asynchronously and this should be done one at a time. To do that I am thinking of setting
          up a distributed queue (for load balancing and failover). Now I have
          this requirement that only one task should be processed at one time. So
          for example if two messages (m1 followed by m2) are sent to distributed
          queue and I have the distributed queue which points to two physical
          queues on two different instances of weblogic(wl1 and wl2), the
          distributed queue will likely send m1 to wl1 and m2 to wl2 (assuming
          distributed queue is setup with round robin policy). If m1 has started
          executing/processing in my MDB on wl1, I do not want start processing
          m2 on wl2 untill m1 has been processed by wl1. Is it possible to do
          this on weblogic 8.1 JMS?
          If this is not supported I was thinking of implementing a database
          based locking framework and each mdb will use that framework to check
          if a task of a particular type is being processed before processing a
          new task. Also in this case I will need to use max. 1 mdb for each
          queue on each weblogic server.
          --Navjeet

Hello navjeet,
          I don't think there are any parameters that you can set on a distributed queue to ensure messages are handled in the sequential manner you describe so it looks like you will have to implement your own locking mechanism.
          In reposponse to your other question you can set the number of MDbeans in the free pool to 1 (or the number of queues you have) in the MDBean deployment descriptor.
          see:
          http://e-docs.bea.com/wls/docs81/ejb/message_beans.html#1120592
          Cheers,
          Hoos

SQL Server Distributed Partitioning Views how to add a new node online

We are using distributed partitioning views in SQL Server 2012 Enterprise Edition for scaling out our data across more than one servers. Now we faced to question how to add a new node (server) into the scale outed db servers system without sending the servers
down, so our users will be able to use them during the process as well.
For example we have 4 servers with scaled out data. When we add the new empty server, the CHECKINGs for the partitioning columns should be reorganized. But during the process the partitioning views are not working.
The High Availability, Always On or Failover Cluster approaches seem are not resolve the problems.
So my question is how to add new node online?
KH

Thank you Erland for the reply.
Yes, it's sounds as possible solution but has some not resolvable nuance in it. Let's say we copied some data from Node5 to new added Node6. Let's assume in Node5 we had data in Table1 with partitioning column's values 100,101,102,103,104,105,106. Now
we want to copy part of the rows with partitioning column's values 103,104,105,106 from Node5.Table1 into Node6.Table1. With this Node5 will contain less data and will work more quickly (less IO, less CPU usage etc), and the rest data will be contained on
Node6. But because of Node5 is already in use, the Node5.Table1 contains CHECK CONSTRAINT = ParttionColumn should be from 100 up to 106. This is check for Node5. The Distributed Partitioning Views are already using the CHECKs to identify what server should
be used to get data from.
Now when we copied part of the Node5.Table1 rows to Node6.Table1 the views are still using the 103-106 rows from Node5.Table1 because the CHECK points there. Then we include the newest Node6.Table1 in the distributed partitioning views. OK, but we should
set some CHECK on new Node6.Table1 which will be used by views. We can't set intersecting checking like Node5 has CHECK 100-106 and Node6 has CHECK 103-106. We also can't edit Node5 check and set it 100-102 untill the data will be removed in it. But this means
that the data will not be available during the execution.
So, any ideas ?
KH

Distributed tx example

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