XA error XAER_RMERR with wls6.1 and weblogic XA driver

This error develops quickly in our designed simple test with these settings:
1) wlserver6.1 on Ultra 10 with Solaris 8;
2) XA datasource on another Ultra 10 with Oracle 8i;
3) Weblogic XA Oracle Driver;
4) Simulated 50 clients from Windows 2000 IE using Microsoft Web Stress test
suite;
5) BMT session bean;
6) Data base contains a simple table with two colomns, name and password.
7) The test business logic is to get and return the password string, could
not be simpler.
The Processing logic(high level) is as follows:
A) get UserTransaction, and begin transaction;
B) loop(30 times):
1) get connection
2) create statement
3) execute statement
4) close result set
5) close statement
6) close connection
C) commit/rollback the tx accordingly.
Note that:
1) the 50 simulated clients will generate repeated hits to stress the
server.
2) We changed to use "thin" driver, giving up the XA capability, and the
tests run OK. However, XA is what we absolutely require of. So please help
identify this problem. It needed, the complete sample code can be made
available.
Thanks.
Here comes the exception dump:
java.sql.SQLException: XA error: XAER_RMERR : A resource manager error has
occured in the transaction branch start() failed on resource
'weblogic.jdbc.jta.DataSource' start failed for XAResource 'branchoutPool'
with error XAER_RMERR : A resource manager error has occured in the
transaction branch at
weblogic.jdbc.jta.DataSource.enlist(DataSource.java:1113) at
weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1079) at
weblogic.jdbc.jta.Connection.getXAConn(Connection.java:148) at
weblogic.jdbc.jta.Connection.createStatement(Connection.java:229) at
weblogic.jdbc.rmi.internal.ConnectionImpl.createStatement(ConnectionImpl.jav
a:126) at
weblogic.jdbc.rmi.SerialConnection.createStatement(SerialConnection.java:56)
at simpleEJB.SimpleEJB.hitdb(SimpleEJB.java:57) at
simpleEJB.SimpleEJB_1zpe51_EOImpl.hitdb(SimpleEJB_1zpe51_EOImpl.java:79) at
simpleEJB.SimpleEJB_1zpe51_EOImpl_WLSkel.invoke(Unknown Source) at
weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298) at
weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java
:93) at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicServerRef.dispatch(BasicServerRef.java:166) at
weblogic.rmi.internal.ServerRequest.sendOneWayRaw(ServerRequest.java:92) at
weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:112) at
weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:262) at
weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:229) at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35) at
$Proxy83.hitdb(Unknown Source) at
simpleUI.SimpleProxy.hitdb(SimpleProxy.java:31) at
jsp_servlet.__simple._jspService(__simple.java:95) at
weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:265) at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:304) at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:200) at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
ntext.java:2495) at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
:2204) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139) at
weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

hi!
I´m facing the same problem with a similiar configuration.
Pool is large enough for an elephant! (:>))
Any other hints?
regards,
Pesca
"Richard Wallace" <[email protected]> escreveu na mensagem
news:[email protected]...
>
Hi,
What connection pool settings do you have? I assume you have enoughconnections
for this test?
Regards,
Richard Wallace
Senior Developer Relations Engineer
BEA Support.
"Yuming Liu" <[email protected]> wrote:
This error develops quickly in our designed simple test with these
settings:
>>
1) wlserver6.1 on Ultra 10 with Solaris 8;
2) XA datasource on another Ultra 10 with Oracle 8i;
3) Weblogic XA Oracle Driver;
4) Simulated 50 clients from Windows 2000 IE using Microsoft Web Stress
test
suite;
5) BMT session bean;
6) Data base contains a simple table with two colomns, name and password.
7) The test business logic is to get and return the password string,
could
not be simpler.
The Processing logic(high level) is as follows:
A) get UserTransaction, and begin transaction;
B) loop(30 times):
1) get connection
2) create statement
3) execute statement
4) close result set
5) close statement
6) close connection
C) commit/rollback the tx accordingly.
Note that:
1) the 50 simulated clients will generate repeated hits to stress the
server.
2) We changed to use "thin" driver, giving up the XA capability, and
the
tests run OK. However, XA is what we absolutely require of. So please
help
identify this problem. It needed, the complete sample code can be made
available.
Thanks.
Here comes the exception dump:
java.sql.SQLException: XA error: XAER_RMERR : A resource manager error
has
occured in the transaction branch start() failed on resource
'weblogic.jdbc.jta.DataSource' start failed for XAResource'branchoutPool'
with error XAER_RMERR : A resource manager error has occured in the
transaction branch at
weblogic.jdbc.jta.DataSource.enlist(DataSource.java:1113) at
weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1079)
at
weblogic.jdbc.jta.Connection.getXAConn(Connection.java:148) at
weblogic.jdbc.jta.Connection.createStatement(Connection.java:229) atweblogic.jdbc.rmi.internal.ConnectionImpl.createStatement(ConnectionImpl.jav
a:126) atweblogic.jdbc.rmi.SerialConnection.createStatement(SerialConnection.java:56)
at simpleEJB.SimpleEJB.hitdb(SimpleEJB.java:57) at
simpleEJB.SimpleEJB_1zpe51_EOImpl.hitdb(SimpleEJB_1zpe51_EOImpl.java:79)
at
simpleEJB.SimpleEJB_1zpe51_EOImpl_WLSkel.invoke(Unknown Source) at
weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
atweblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java
:93) atweblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicServerRef.dispatch(BasicServerRef.java:166)
at
weblogic.rmi.internal.ServerRequest.sendOneWayRaw(ServerRequest.java:92)
at
weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:112)
atweblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:262) atweblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:229) at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35) at
$Proxy83.hitdb(Unknown Source) at
simpleUI.SimpleProxy.hitdb(SimpleProxy.java:31) at
jsp_servlet.__simple._jspService(__simple.java:95) at
weblogic.servlet.jsp.JspBase.service(JspBase.java:27) atweblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:265) atweblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:304) atweblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:200) atweblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
ntext.java:2495) atweblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
:2204) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at
weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)

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Stratos

Issue with usb flash and removable hard drives in Lion. (also an install tip)

Having an issue with my usb flash and removable hard drives. I plug them in and Lion does not display all my files/folders, I take it out and plug it into my snow leopard machine and all the files/folders are there, does anyone have this issue?
It does it on my macbook pro which was a snow leopard upgrade to Lion and it does it on my macbook which was a clean install of Lion via a bootable flash drive.
The computers both work great in all other aspects, so there were no errors on installation. It's plain and simple, some files/folders are not showing up that are present on the drives and viewable on all other non-lion OS's mac and PC.
Also a word on installs, I highly suggest doing a clean install (delete and reformat drive them install Lion vs a snow leopard ugrade) my machine that was a clean install (macbook) runs 50% faster and smoother than the upgraded one (macbook pro).

Yes, you can use your backup disk drives in the manner you describe, but Apple provides conflicting information on the subject.
From Mac Basics: Time Machine
Time Machine can’t backup to an external drive that's connected to an AirPort Extreme, Time Capsule, or a drive formatted for Microsoft Windows ...
From Time Machine doesn't back up to AirPort Extreme AirPort Disks
Time Machine in Mac OS X v10.5 or later can be used to back up to many kinds of Mac OS Extended-formatted drives, but you cannot choose an AirPort Extreme 802.11n's AirPort Disk as a Time Machine backup volume.
However, you can choose Time Capsule AirPort Disks or internal disks as a Time Machine backup volume.
They have yet to resolve this discrepancy.
All other available technical details regarding Time Machine's use seem to indicate that a USB HD connected to Time Capsule should meet Time Machine's requirements. For what it's worth I have been using an external HDD connected to the Time Capsule's USB port and it seems to function just fine.

ILife with both internal and external hard drives?

I've been considering switching from a homebrew, multi-boot desktop to a MacBook for my primary computer, in part so I can hang out with my family in the living room rather than be exiled to the home office when I want to compute.
But here's my concern: I have media. We have about 50 GB of iTunes; maybe 30 GB of iPhoto; and tons and tons of digital video that would be stored in iMovie. Obviously the libraries are all interlinked. And it's all growing. I also like to rip DVDs and re-encode them for my iPod and AppleTV. Right now, my desktop has 480 GB of internal storage and that's just about enough.
I have discovered that the MacBook only comes with an option up to 250 GB. I absolutely need AppleCare, so I can't get an aftermarket hard drive. (All my Macs break - this one from the office that I'm on right now has a bum DVD drive, and my wife's has needed both fan and logic board replacements.)
While I'm aware of the existence of external hard drives, I'm concerned about Apple's non-external-hard-drive-friendly way of storing iLife data. If I wanted to keep more recent or useful music and photos on the internal drive but older stuff on an external, and still be able to use iLife seamlessly, would that be possible? (I see myself editing recent video in the living room, but then hooking back into the external HD in the office if I need older stuff.)
What solutions are out there for integrating data stores on both internal and external hard drives into an iLifestyle?
Thanks!

Sascha Segan1 wrote:
.. What solutions are out there for integrating data stores on both internal and external hard drives into an iLifestyle?
all iApps (iPhoto, iTunes, iM08) support usage of external drives as 'mass storage' devices.. you can tell all apps which drive to use for the Libraries.. there some tools out there, which even allow the usage of 2/many different Libraries in iTunes/iPhoto..
for iM in detail: the Projects are small files, and should stay internal (allthough I'm discribing a 'hack' on my site: http://karsten.schluter.googlepages.com/im08tricks Project Library (and Events) on External Harddrive); the Events (=GBs) could be located on as much ext. HDDs as you want..
but ...
all iApps are single-user .. you can NOT 'share' Libraries to 2/many different users; the idea of a 'media server' which hosts/shares all kind of data to all kind of users is not 'on concept' of iLife ..

Using the Z68A-GD65 board with graphics card and Lucid Virtual Driver

Edit: I found the online manual for Lucid, so the main question is answered (where to plug in the monitor). However, I'd appreciate tips or suggestions on how to use this new technology.
I play a few games, burn/rip blu-rays, but mostly use Photoshop. The latest Photoshop and Win7 both use the processing power of a discrete graphics card. However, I'm going to install an i7 2600k which also has the graphics built into it. I understand the Lucid software allows video processing with the i7 and gaming with the discrete card. It sounds as though "i-mode" is the way to go, but are there any drawbacks?
Also, while I have your attention, here's my planned build, and I'd appreciate any recommendations/suggestions. Thanks for the help.
Win7 Pro
Z68A-GD65
Intel i7 2600k
16 gigs of Corsair Vengeance Low Profile (1600)
EVGA GTX 560Ti
Crucial SSD 128gig SATA III (for the boot drive)
Plus, all the leftover gear from the old build (BD drive, 3 hard drives, OZC 700w psu)

Thanks for your feedback .

WLS6.1 SP4 weblogic JDBC driver problem

Hi,
We have a big Oracle table (more than 13000000 rows). The query cost by SP2 weblogic
driver is about 200 milli-second while SP4 cost is more than 200 seconds. Does
anyone know how to fix the problem? Our Orale is 9.2.0.1. The test program is
a simple java application running on Sun 5.8, JDK 1.3.1_02-b02.

amyshuai wrote:
We are using the weblogic jdbc driver. The connection is from JDBCTxDataSource.
Problem can be solved by using oracle jdbc driver 9.0.1.4, but we are curious
why
the jdbc driver can impact the query performance so much?So all connections are coming through our pool, and you found a performance
regression in our Oracle driver between sp2 and sp4, which you work around
by using Oracle's own driver. Is that correct?
thanks,
Joe

XA error XAER_RMERR with wls6.1 and weblogic XA driver

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