My First Thread: VL06T issue

Hello,
Where can I change VL06T printer.Printer A needs to be chnaged to printer B.
In VL06T at the bottom of the screen you can see output field.Any helps?

Hi
Check the below settings
1.In t-code SU01 check whether ur userID has been assigned with in Tab Defaults OutputDevice
2. Check ur smart form whether u mainaitaned Printer Parameters thru driver programme to smart form
3.Check ur Condition record for ur output type in Communication on top whther u assigned ur Output device in NACR
4. If the above points are maintained then consult ur BASIS consultant on this issue
Reg
JJ
Edited by: Jagsap on Oct 5, 2009 3:40 PM

Similar Messages

Thread Safety Issue with DOM

I am parsing an XML into a DOM object using the Xerces parser that is packaged with JDK 1.5.
First, I create a new instance of the DocumentBuilderFactory and then using the factory, create a new DocumentBuilder. I then parse the XML using the DocumentBuilder to obtain a DOM object.
Somehow, I am seeing the same DOM object being used for different XMLs.
Is there a thread safety issue with the Xerces parser?

certainly, Xerces parser is not thread safe. You have to provide thread safety by making sure that only one thread is allowed to access DocumentBuilder object.

Thread Contention Issue , Help !

public class vipThread implements Runnable
private static volatile boolean lockMe=false;
public synchronized static boolean getLock ()
     return lockMe;
public synchronized static void setLock (boolean lock)
     lockMe = lock;
public void run ()
synchronized(this)
               if(!this.getLock ()) {
               this.setLock(true);
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getNewRequests is not a synchronized method. Do i need to have it synchronized ? i do have a thread contention issue here. Couple of threds pickup the same request fromt he database.
Help appreciated
thanks
pras

public class vipThread implements Runnable
private static volatile boolean lockMe=false;
public synchronized static boolean getLock ()
return lockMe;
public synchronized static void setLock (boolean
an lock)
lockMe = lock;
public void run ()
synchronized(this)
if(!this.getLock ()) {
this.setLock(true);
ret = vipRequestProcessor.getNewRequests ();
this.setLock(false);
getNewRequests is not a synchronized method. Do i need
to have it synchronized ? i do have a thread
contention issue here. Couple of threds pickup the
same request fromt he database.
Help appreciated
thanks
prasIf the "getNewRequests() method is only called from your vipThread, then you don't have thread contention problem.

Change of Business Area to Cost Center (my first thread , please help)

Hi Everybody i'm Charmaine Leena Martin freshly certified FICO consultant , this is my first thread i'm posting, please help me with the same.
A wrong business area has been assigned to a cost center and postings have taken place in the same.
while using t-code KS02: change cost center , for rectifying the business area , i get the following error:
"Field change business area is not possible (transaction data exists)"
so i've created a new cost center and assigned it the right business
and using t-code kb61 : i have posted the documents to the new cost center
at that time system generates a co-document automatically:
But the accounting document of which transfer postings have taken place still shows old business area and cost center
Please let me know why is it so ,
and what has to be done with the CO document that gets posted automatically
and is there any other way out of changing the business area without creation of new cost center
Moderator: Please, search before posting

Hi Leena
Welcome to SDN
Do KB11N to post the cost back to the Wrong cost center
Do an FI Posting again Dr the Correct new cost center and Cr the Old wrong cost center
This will match both FI and CO
br, Ajay M

RDBMS non-thread-safe issue

<snip>
This (as you probably know) is due to the fact that the code provided by
most of the DB vendors is not thread safe.
<snip>
Sean's comment, above, speaks to an issue that is causing some concern
within my (large - 180 projects in development) organisation.
May I please ask the forum if there are others out there who have an
understanding of / concern with this "problem"?
My perception (quite possibly flawed) of the "problem" is that the RDBMS
cannot multi-thread data access objects. So we find ourselves in a situation
where we can achieve scaleability in just about all other
performance-sensitive areas of a system's technical architecture (we're
using DCE -- but have found that Encina is not advisable except where there
is a true requirement for heterogeneous distributed 2 phase commit, which we
don't often see.....) but when we go to hit on the RDBMS, we go back to good
ole single-threading.
In certain circumstances, this shortfall of RDBMS technology -- I won't
mention any names, of course, but the initials are "Oracle" -- seems to be
hindering our achievement of a desired technical architecture.
Is this a "Pro*C / PL/SQL stored procedures" problem or is it something that
is in the RDBMSs' DNA?
How can we get around it?
Any comments?
Regards
Jon

Jon
I agree. But it is the best solution within the constraints of existing
technology. At least we don't use a process per client. 10 replicated
copies of a service could service the needs of 100 clients.
Eric
>
At 13:15 6/09/96 EST, you wrote:
Eric
Thanks for your response. Yep. I realise that the issue I've presented is
clearly not something that Forte causes or is responsible for in any way.
Forte can, as you've pointed out, actually help in this area. But I don't
think that getting Forte to spawn another instance of a data access server
is really the best solution. Ie, that's not what we tend to have in mind
when we think about "scaleability". The best solution is -- perhaps -- to
get the RDBMS people to thread-safe all code and libraries. I have pointedly
asked Oracle for a position on this -- and got the usual blank stare.
I also considered whether people might get upset at me for posting what is
clearly a non-Forte-specifc question in a Forte forum. But then I went ahead
and did it anyway. Justification being (assumption follows) that the kind of
people who hang out on the Forte forum may tend to be more
architecture-oriented than your run of the mill VB / SQL*Net / PL/SQL stored
procedures kinda guy/gal, and may be using or considering Forte (plug for
Forte follows) precisely because it clearly enables a superior architecture.
Should proably post to the comp.database.oracle forum, but I just don't know
them as well.
Regards
Jon
From: Eric Gold
To: McLeod, Jon
Cc: [email protected]
Subject: Re: RDBMS non-thread-safe issue
Date: Friday, 6 September 1996 11:21AM
Jon
In response to this message.....read below...
Sean's comment, above, speaks to an issue that is causing some concern
within my (large - 180 projects in development) organisation.
May I please ask the forum if there are others out there who have an
understanding of / concern with this "problem"?
My perception (quite possibly flawed) of the "problem" is that the RDBMS
cannot multi-thread data access objects. So we find ourselves in a situation
where we can achieve scaleability in just about all other
performance-sensitive areas of a system's technical architecture (we're
using DCE -- but have found that Encina is not advisable except where there
is a true requirement for heterogeneous distributed 2 phase commit, which we
don't often see.....) but when we go to hit on the RDBMS, we go back to good
ole single-threading.
In certain circumstances, this shortfall of RDBMS technology -- I won't
mention any names, of course, but the initials are "Oracle" -- seems to be
hindering our achievement of a desired technical architecture.
Is this a "Pro*C / PL/SQL stored procedures" problem or is it something that
is in the RDBMSs' DNA?
How can we get around it?
Any comments?Jon,
Go ahead ask the Forum any questions you want. This "problem"
is not a problem in Forte. What we allow you to do is "replicate" your
data access services so that each one runs inside its own
process. Each one of these processes (aka partitions) has its
own connection to the database. The routing to the replicated
partitions is transparent to the clients. Clients send a
message like "DatabaseService.GetCustomer()" and then the Forte
router sees which replicated copy of the service is not currently
processing a request and routes it to that free replicate. You
can dynamically increase or decrease the number of replicated
copies of the service easily.
We call this feature "load balancing" in Forte. It is achieved
by checking a box in the data access service object definition.
You can dynamically increase/decrease the number of replicates
and also dynamically move replicates to other nodes in the environment.
This approach assumes that you are using application driven
security and not database security. Each replicated copy
of the service is using the same generic username/password
to connect to the database.
I am forwarding this answer to forte-users because others
might not completely understand this feature.
Eric
Eric Gold
Technical Director
Forte Australia
Voice: 61-2-9926-1403
Fax: 61-2-9926-1401
Eric Gold
Technical Director
Forte Australia
Voice: 61-2-9926-1403
Fax: 61-2-9926-1401

WPF Threading Backgroundworker issue

I have two different background thread who does similar thing but at different time in my WPF application. both are right now independent background worker.
1) first thread runs when you launch application, it downloads all images from connected printer to PC location.
2) second thread does the same thing when use click on some link in my application.
As both worker are independent, even though first thread's downloading process are still running, if user click on link the second thread start their work too
What I would like to do is, when user click on 2nd thread, is there any way I will know about status of first thread ? I mean if i know that first thread is doing it's work then I don't want to even start second thread. I need only second thread when first
one got cancelled by some other reason.
I heard about Mutex but I dont know how it works. Pls share ur idea and some example if you know how to handle this.
Thanks
Dee

Why even have a second instance of BackgroundWorker, why not just reuse the one that you already have? At the very least re-use the variable, so that you remember to dispose of any previous instance. If you are creating a new BackgroundWorker
each time, without disposing of any previous instances, you are definitely going to have memory leaks.
Something along these lines should work for you:
Define a private property to track the BackgroundWorker:
private BackgroundWorker m_Worker;
Define your work and completed events:
private void Work(object sender, DoWorkEventArgs e)
// Do long running work
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// Process the results
// Clean up
m_Worker.Dispose();
m_Worker = null;
And then your button click event, which I will leave up to you for the actual implementation for MVVM, if you are using it:
private void ButtonClick(object sender, RoutedEventArgs e)
if (m_Worker != null && m_Worker.IsBusy)
return;
m_Worker = new BackgroundWorker();
m_Worker.DoWork += new DoWorkEventHandler(Work);
m_Worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(WorkDone);
m_Worker.RunWorkerAsync();
It would be greatly appreciated if you would mark any helpful entries as helpful and if the entry answers your question, please mark it with the Answer link.

First page load issue in JDeveloper10g with R12 OAF

Hi All,
I have installed the JDeveloper 10g with OA Framework R12,when i run the page first time i am getting the following error after making all connections and assigning DBC file to the project.
Exception Details.
oracle.apps.fnd.framework.OAException: Application: FND, Message Name: FND_GENERIC_MESSAGE. Tokens: MESSAGE = java.sql.SQLException: ORA-06550: line 1, column 39:
PLS-00103: Encountered the symbol "?" when expecting one of the following:
( ) - + case mod new not null others <an identifier>
<a double-quoted delimited-identifier> <a bind variable>
table avg count current exists max min prior sql stddev sum
variance execute multiset the both leading trailing forall
merge year month DAY_ hour minute second timezone_hour
timezone_minute timezone_region timezone_abbr time timestamp
interval date
<a string literal with character set specification>
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is it because of the wrong DBC file ?
Please any one help me to clear this issue.
Thanks,
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Ah, my favourite topic.
You should try the [url http://forums.oracle.com/forums/forum.jspa?forumID=210]OA Framework Forum
John

Why I am buying a new MacBook Pro now, but, first, any major issues?

With the delay of Ivy Bridge, and with my personal view that the next generation of MacBook Pro notebooks will be dropping FireWire 800 to service a better design, I have decided to purchase a new MacBook Pro now.
I just cannot imagine the new notebooks having a FireWire or Ethernet port, as they add too much thickness.
While I keep MacBook Pros for up to 4-years, I think this new purchase will have to be a transition computer, as the next model will probably be too irresitable. Having the option of then moving my data via Thunderbolt to Thunderbolt (Tarket Disk Mode) is very appealing too.
So, any issues with the current line?
Specifically, has anyone had a screen flicker issue or anything else major?
Would anyone dare say Thunderbolt is unreliable?
I really appreciate any thoughts on this - Thank you!

Shootist007 wrote:
What you think Apple is infallible? They aren't. Just look at this and all the other Mac forums on the net.
I am so sorry, but you are dead wrong.
First, people get their problems resolved here quickly. A majority of the issues here are "Newbie" issues.
I have been a Mac user since 2007, and I have been on these forums since that time too. I have never once seen a horror story like the ones found on the Dell, Lenovo, and HP support forums that pop up on an hourly basis.
Read those forums, and you will get tears in your eyes.
Anytime I have called Apple or visited an Apple Store, they have treated me like a God.
Apple hardware is bullet proof made of the best materials on the planet. A MacBook Pro is far stronger and more durable than any ThinkPad, Dell Precision, or HP Elitebook.
Just open up a MacBook Pro to look at the insides as compared to the disaster zones of the aforementioned PCs.
Oh.... and no bloody stickers on MY notebook.
Everything just works.
Little things come up, but they are always solved.
Now, add programs like Joint Venture, and heaven is a place on earth.
No PC company comes close to treating their customers the way Apple has treated me since 07.
Apple has earned my business for life.
Right now, I can schedule a call with Apple - What PC company does that?
Apple = Unequaled products, service, and support. No PC company can come close to any of those three traits.
PS
And none of those PC forums have people like Kappy, Eww, Bee, Niel, iVmichael, sig, Etresoft, (yourself), and all the other fine members of this community that make it such a pleasure...

Installed os X Mountain Lion and now computer won't boot (first had keyboard issues-reverse caps)

Hi all,
I just updated my macbook air to osX mountain lion and now it will not boot at all.. At first I was having issues with the keyboard and keys typying weird characters.. and the caps lock was stuck on reverse. Now I have nothing.. Can someone help.

What happens when you try to boot?

JRun Thread Pool Issue

I'm running CF 9.0.1 on Ubuntu on an "Medium" Amazon EC2 instance. CF has been crashing intermittently (several times per day). At such times, running top gets me this (or something similar):
PID
USER
PR
NI
VIRT
RES
SHR
S
%CPU
%MEM
TIME+COMMAND
15855
wwwrun
20
0
1762m
730m
20m
S
99.3
19.4
13:22.96 coldfusion9
So, it's obviously consuming most of the server resources. The following error has been showing up in my cfserver.log in the leadup to each crash:
java.lang.RuntimeException: Request timed out waiting for an available thread to run. You may want to consider increasing the number of active threads in the thread pool.
If I run /opt/coldfusion9/bin/coldfusion status, I get:
Pg/Sec DB/Sec CP/Sec Reqs Reqs Reqs AvgQ   AvgReq AvgDB Bytes Bytes
Now Hi Now Hi Now Hi Q'ed Run'g TO'ed Time   Time   Time   In/Sec Out/Sec
0   0   0   0   -1 -1 150   25    0     0      -1352560      0      0
In the administrator, under Server Settings > Request Tuning, the setting for Maximum number of simultaneous Template requests is 25. So this makes sense so far. I could just increase the thread pool to cover these sort of load spikes. I could make it 200. (Which I did just now as a test.)
However, there's also this file /opt/coldfusion9/runtime/servers/coldfusion/SERVER-INF/jrun.xml. And some of the settings in there appear to conflict. For example, it reads:
<service class="jrunx.scheduler.SchedulerService" name="SchedulerService">
<attribute name="bindToJNDI">true</attribute>
<attribute name="activeHandlerThreads">25</attribute>
<attribute name="maxHandlerThreads">1000</attribute>
<attribute name="minHandlerThreads">20</attribute>
<attribute name="threadWaitTimeout">180</attribute>
<attribute name="timeout">600</attribute>
</service>
Which a) has fewer active threads (what does this mean?), and b) has a max threads that exceed the simultaneous request limit set in the admin. So, I'm not sure. Are these independent configs that need to be made to match manually? Or is the jrun.xml file supposed to be written by the CF Admin when changes are made there? Hmm. But maybe this is different because presumably the CF Scheduler should only use a subset of all available threads, right...so we'd always have some threads for real live users. We also have this in there:
<service class="jrun.servlet.http.WebService" name="WebService">
<attribute name="port">8500</attribute>
<attribute name="interface">*</attribute>
<attribute name="deactivated">true</attribute>
<attribute name="activeHandlerThreads">200</attribute>
<attribute name="minHandlerThreads">1</attribute>
<attribute name="maxHandlerThreads">1000</attribute>
<attribute name="mapCheck">0</attribute>
<attribute name="threadWaitTimeout">300</attribute>
<attribute name="backlog">500</attribute>
<attribute name="timeout">300</attribute>
</service>
This appears to have changed when I changed the CF Admin setting...maybe...but it's the activeHandlerThreads that matches my new maximum simulataneous requests setting...rather than the maxHandlerThreads, which again exceeds it. Finally, we have this:
<service class="jrun.servlet.jrpp.JRunProxyService" name="ProxyService">
<attribute name="activeHandlerThreads">200</attribute>
<attribute name="minHandlerThreads">1</attribute>
<attribute name="maxHandlerThreads">1000</attribute>
<attribute name="mapCheck">0</attribute>
<attribute name="threadWaitTimeout">300</attribute>
<attribute name="backlog">500</attribute>
<attribute name="deactivated">false</attribute>
<attribute name="interface">*</attribute>
<attribute name="port">51800</attribute>
<attribute name="timeout">300</attribute>
<attribute name="cacheRealPath">true</attribute>
</service>
So, I'm not certain which (if any) of these I should change and what exactly the relationship is between maximum requests and maximum threads. Also, since several of these list the maxHandlerThreads as 1000, I'm wondering if I should just set the maximum simultaneous requests to 1000. There must be some upper limit that depends on available server resources...but I'm not sure what it is and I don't really want to play around with it since it's a production environment.
I'm not sure if it pertains to this issue at all, but when I run a ps aux | grep coldfusion I get the following:
wwwrun   15853 0.0 0.0   8704   760 pts/1
S
20:22   0:00 /opt/coldfusion9/runtime/bin/coldfusion9 -jar jrun.jar -autorestart -start coldfusion
wwwrun   15855 5.4 18.2 1678552 701932 pts/1
Sl
20:22   1:38 /opt/coldfusion9/runtime/bin/coldfusion9 -jar jrun.jar -start coldfusion
There are always these two and never more than these two processes. So there does not appear to be a one-to-one relationship between processes and threads. I recall from an MX 6.1 install I maintained for many years that additional CF processes were visible in the process list. It seemed to me at the time like I had a process for each thread...so either I was wrong or something is quite different in version 9 since it's reporting 25 running requests and only showing these two processes. If a single process can have multiple threads in the background, then I'm given to wonder why I have two processes instead of one...just curious.
So, anyway, I've been experimenting while composing this post. As noted above I adjusted the maximum simulataneous requests up to 200. I was hoping this would solve my problem, but CF just crashed again (rather it slogged down and requests started timing out...so effectively "crashed"). This time, top looked similar (still consuming more than 99% of the CPU), but CF status looked different:
Pg/Sec DB/Sec CP/Sec Reqs Reqs Reqs AvgQ   AvgReq AvgDB Bytes Bytes
Now Hi Now Hi Now Hi Q'ed Run'g TO'ed Time   Time   Time   In/Sec Out/Sec
0   0   0   0   -1 -1 0     150   0     0      0      0      0      0
Obviously, since I'd increased the maximum simultaneous requests, it was allowing more requests to run simultaneously...but it was still maxing out the server resources.
Further experiments (after restarting CF) showed me that the server became unusably slogged after about 30-35 "Reqs Run'g", with all additional requests headed for an inevitible timeout:
Pg/Sec DB/Sec CP/Sec Reqs Reqs Reqs AvgQ   AvgReq AvgDB Bytes Bytes
Now Hi Now Hi Now Hi Q'ed Run'g TO'ed Time   Time   Time   In/Sec Out/Sec
0   0   0   0   -1 -1 0     33    0     0      -492   0      0      0
So, it's clear that increasing the maximum simultaneous requests has not helped. I guess what it comes down to is this: What is it having such a hard time with? Where are these spikes coming from? Bursts of traffic? On what pages? What requests are running at any given time? I guess I simply need more information to continue troubleshooting. If there are long-running requests, or other issues, I'm not seeing it in the logs (although I do have that option checked in the admin). I need to know which requests exactly are those responsible for these spikes. Any help would be much appreciated. Thanks.
~Day

I really appreciate your help. However, I haven't been able to find the JRun Thread settings you describe above.
Under Request Tuning, I see:
Server Settings > Request Tuning
Request Limits
Maximum number of simultaneous Template requests
Restricts the number of simultaneously processed requests. Use this setting to increase overall system performance for heavy load applications. Requests beyond the specified limit are queued. On Standard Edition, you must restart ColdFusion to enable this setting.
Maximum number of simultaneous Flash Remoting requests
The number of Flash Remoting requests that can be processed concurrently.
Maximum number of simultaneous Web Service requests
The number of Web Service requests that can be processed concurrently.
Maximum number of simultaneous CFC function requests
The number of ColdFusion Component methods that can be processed concurrently via HTTP. This does not affect invocation of CFC methods from within CFML, only methods requested via an HTTP request.
Tag Limit Settings
Maximum number of simultaneous Report threads
The maximum number of ColdFusion reports that can be processed concurrently.
Maximum number of threads available for CFTHREAD
The maximum number of threads created by CFTHREAD that will be run concurrently. Threads created by CFTHREAD in excess of this are queued. On Standard Edition, the maximum limit is 10.
And under Java and JVM, I see:
Server Settings > Java and JVM
    Java and JVM settings control the way ColdFusion starts the Java Virtual Machine when it starts. You can control settings like what classpaths are used and how memory is allocated as well as add custom command line arguments. Changing these settings requires restarting ColdFusion. If you enter an incorrect setting, ColdFusion may not restart properly.
   Backups of the jvm.config file are created when you hit the submit button. You can use this backup to restore from a critical change.
   Java Virtual Machine Path
Specifies the location of the Java Virtual Machine.
   Minimum JVM Heap Size (MB)         Maximum JVM Heap Size (MB)
   The Memory Size settings determine the amount of memory that the JVM can use for programs and data.
   ColdFusion Class Path
Specifies any additional class paths for the JVM, with multiple directories separated by commas.
   JVM Arguments
-server -Dsun.io.useCanonCaches=false -XX:MaxPermSize=192m -XX:+UseParallelGC -Xbatch -Dcoldfusion.rootDir={application.home}/../ -Dcoldfusion.libPath={application.home}/../lib
Specifies any specific JVM initialization options, separated by spaces.
I did go take a look at FusionReactor and found it's not free (which would be fine, of course, if it would actually help). It looks like there's a fully functional demo, which is cool...but I've haven't been able to get it to install yet, so we'll see.
Thanks again!
~Day
(By the way, I've cross-posted this inquiry on StackOverflow. So if you're able to help me arrive at a solution you might want to answer there as well.)

Thread Dump issue with LD_ASSUME_KERNEL=2.4.1

Hi ,
When I take Thread Dump using 'jstack <PID>' in JDK 1.5 it givss me "sun.jvm.hotspot.debugger.DebuggerException" in the dump nothing more
I set LD_ASSUME_KERNEL=2.4.1 in my server to avaoid some other issue ( JVM crash some times)
Surprisingly, I can not stop my server ( my java process ) after that using our Shutdow scripts , Ctrl C or even "kill -9 <PID>",
I have to restart the machine or manually release uncleaned resources that my server occupied and restart the server
This happens Redhar 9 as well as in Linux ES.
Anybody faced similar problem?
Any help or information regarding this is highly apprecialted
Vasu
Thread Dump Output:
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSet0(Native Meth
od)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLocal.java:34)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterSetTask.doit(Li
nuxDebuggerLocal.java:431)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.run(Linux
DebuggerLocal.java:109)
sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: get_thread_re
gs failed for a lwp
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.execute(L
inuxDebuggerLocal.java:134)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSet(LinuxDebugge
rLocal.java:437)
at sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
at sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrameGuess(LinuxX86
JavaThreadPDAccess.java:75)
at sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:42)
at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)
Caused by: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSet0(Native Meth
od)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.access$800(LinuxDebuggerLocal.java:34)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$1GetThreadIntegerRegisterSetTask.doit(Li
nuxDebuggerLocal.java:431)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.run(Linux
DebuggerLocal.java:109)
sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: get_thread_re
gs failed for a lwp
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.execute(L
inuxDebuggerLocal.java:134)
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSet(LinuxDebugge
rLocal.java:437)

@brain0
I've downloaded the glic-2.3.6 sources from gnu, so I could build it from those. I'm however reluctant to do this because I really don't want to break my install.
I do agree with you on the NPTL statement, but pvs relies on allegro, which relies on LinuxThreads. Allegro is not being ported to new versions of glibc, so that approach is unfortunately not viable.
@iphitus
I wasn't very specific - it's allegro as in a lisp environment.
I think I'll try and install an old version of arch on wmware instead. Is there anywhere you can check out glibc version numbering on old arch install isos (ie. do I need arch-0.[1-9].iso)? And anywhere you can download the old isos (tried filewatcher, but a lot of the older sites seem broken)?
Thanks for the replies,
Mads
PS. I noticed that you recommended slackware for old kernels in another thread. I'm however in a bit different situation as I need old versions of glibc. Furthermore I would prefer sticking to arch, but was wondering whether there were any specific reasons for not doing that.

Oracle Application Server 10g thread stuck issue.

We are having,
Oracle Application Server 10g [10.1.3.1 + 10.1.3.4patch] along with Oracle Http Server 2.0
Now there is a issue of thread stuck [some application threads taking longer times] due to which the application server is unable to respond and sometimes it reinits the oc4j instance.
=> Is there any setting to increase the Thread Stuck Time in OAS.
=> Is there any setting to stop the auto reinit of oc4j instance.
=> Does the auto re init of oc4j get logged in opmn.log as well as in service.log.
It will be really helpful if any advice on the same.
Thanks in advance...
ManojC

Look in httpd.conf file anything that is like thread in there you will find a simple description of the Directives.
Greetings.

THREAD SAFETY ISSUE OF SERVLET

It is possible that one instance of a sevlet is accessed by multiple
client , then how is the concurrency issue taken care of? Especually thread safety?

It's not, you have to handle it yourself.
That's why it's a good idea to never put instance variables in servlets. The basic technique is to store anything you need to save between requests in the current user's session (which you get by calling request.getSession()). During a call to service() (or, more frequently, to doGet or doPost, you're safe if you use whatever is present in the request and response argument, including servlet config parameters, request parameters, request attributes, and session attributes.
If you want to write some "real" servlet app, you should have a look at one of the frameworks, like Jakarta Struts or OpenSymphony WebWorks.

Does SimpleDateFormat still have Thread Safety Issue in jdk 1.4.2_8?

Hi,
We are using jdk1.4.2_08 and experience following error message intermittently, sometimes once in 5000 or 10000 or 2/3 times in 20000 message processing.
On one occassion, it reported as Empty String and other time it reported as ".20042005E200420054E". I won't suspect the input that's coming to this class since it works with same message over and over.
2005-07-18 19:13:54,733 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): java.lang.NumberFormatException: empty String
2005-07-18 19:13:54,740 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:983)
2005-07-18 19:13:54,745 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.lang.Double.parseDouble(Double.java:220)
2005-07-18 19:13:54,751 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.text.DigitList.getDouble(DigitList.java:127)
2005-07-18 19:13:54,756 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.text.DecimalFormat.parse(DecimalFormat.java:1070)
2005-07-18 19:13:54,761 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.text.SimpleDateFormat.subParse(SimpleDateFormat.java:1705)
2005-07-18 19:13:54,767 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1156)
2005-07-18 19:13:54,772 [RMI TCP Connection(6960)-10.120.102.97] INFO org.jboss.logging.util.LoggerStream write(140): at java.text.DateFormat.parse(DateFormat.java:333)
It seems like some people have reported BugID 4228335 and there are few associated bugs. I assumed these are fixed in jdk1.4.
Can anyone please suggest if this kind of issues still exist in jdk1.4.2?
Here is the piece of code.
private static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public Object convert(Class type, Object inValue) {
if(inValue == null)
return null;
NFDate ret = (NFDate) ClassDirectoryFactory.GetInstance().getClassInstance(NFDate.CLASS_KEY);
if (inValue instanceof Date) {
ret.setDate((Date)inValue);
} else if (inValue instanceof String) {
String str = inValue.toString();
if (str != null && str.length() > 0) {
DateFormat format = DateFormat.getDateTimeInstance();
format.setLenient(true);
try {
ret.setDate(format.parse(str));
} catch (ParseException e) {
try {
ret.setDate(DATE_FORMAT.parse(str));
} catch (ParseException e1) {
throw new DateConversionException("Unable to convert the String to NFDate. " +
"Exception: " + e + " - expected format is (" + format.format(new Date()) + ")", e1);
else {
if (!ret.getIsNullDate()) ret.reset();
} else {
String msg = "Conversion from " + inValue.getClass().getName() + " to " + NFDate.class.getName() +
" is not supported";
throw new DateConversionException(msg);
return ret;
Thanks much in advance.
Saikat

It doesn't look like the format classes will ever be made thread safe. The fact that they aren't isn't a bug, it is a design choice that Sun made. If you need them to be thread safe, then you will have to do the synchronization yourself.
If you have a finite number of threads for you application (like a thread pool) then you might consider using ThreadLocal so that separate threads will not be trying to access the same formatter.

Ios 4 threaded email issue with outlook inbox?

Anyone else have mail in their outlook inbox get removed or otherwise hidden when threading is turned on in IOS 4?
I can see the full threaded conversation on the phone, but only the most recent message in a thread is in my outlook inbox.
Input, solutions?

Hi. This is a very delayed post to your original. I would like though to ask if you still have fully threaded emails in your iPhone. Since iOS 4.1 there are apparent issues, and it depends how you define 'threaded'. I am using Gmail and they have a threaded/conversations method of reading mail, very useful to see the entirety of a discussion. On my new iPhone 4 using the iPhone native mail app will not show threaded, only all of the messages from the other party, I'd need to scroll through a message to see my own input.. Or look in the Sent Mail folder. Both of which seem antiquated to me. I was interested in your post as you describe seeing your threaded mail properly on iPhone. Is this still the case?
Thanks
AMH.

My First Thread: VL06T issue

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