Failure under load

When under load my system is extremely unstable and im not sure why, its been a year of trouble shooting and still no luck. Here is how it all came about.
Its sort of hard to explain, basically the computer runs perfectally aside from slightly low scores in the 3d marks but i can live with that. Then when i try and play games the system becomes unstable. When i first built the computer almost exactally a year ago it used flash blue screen and restart when idle in windows at random intervals and since all the hardware was very very new and there didnt appear to be any reason for this i assumed that it was driver conflicts. At this time all games ran fine and no reboot problems occured when gaming. The over the past summer i got battlefield 2. When playing it the computer will restart at random intervals sometimes hours sometimes only 10 or 20 minutes. It locks up the sounds goes from skipping in a loop to resuming back to skipping for 30 seconds or a minute then it just restarts. Upon returning to windows i get a "Windows has recovered froma serious error" message and when sending the report it comes up as a driver problem or hardware issue with nvidia graphics card. After trying almost everything i could think of including every combination of every set of drivers and countless windows installs i decided it could be my video card. So i RMAed it and MSI sent it back with a pass. Back to square 1. So no my computer runs 100% stable in windows but as soon as i start gaming it only lasts an hour maybe nomally less before cash reboot.
Also when in windows if using an intensive program (the only one ive found so far is Pro Engineer) it will drift in and out of responsiveness. For example i will be drawing a 3d Model and the mouse will stop responding but keep moving, then the mouse will freeze and the computer will be fullylocked up, then it will unfreeze the mouse but remain unresponsive. This will continue for a couple fo minutes then it will resume and i can continue my work but 5 minutes or less later it repeats. The mouse is not just unresponsive in the application in question but entirely in windows.
Any suggestions would be greatly appreciated.

Error caused by a video device driver
Thank you for sending an error report to Microsoft.
Error report summary
Error type    Windows stop error (A message appears on a blue screen with error code information)
Solution available?    Yes
What does this error mean?    You received this message because a device driver installed on your computer caused the Windows operating system to stop unexpectedly. This type of error is referred to as a "stop error." A stop error requires you to restart your computer.
Cause    A video adapter device driver
Computer symptoms    A message appears on a blue screen with error code information:
STOP 0x000000EA THREAD_STUCK_IN_DEVICE_DRIVER
- or -
STOP: 0x100000EA THREAD_STUCK_IN_DEVICE_DRIVER_M
Action for you to take
We have analyzed your error report and there are two solutions for this problem for you to choose between.
+ Solution 1: Install the most current driver for your video card
* Go to the Microsoft Update website to see if there are any updated drivers for your video card. A driver is software that enables hardware or devices (such as a printer, mouse, or keyboard) to work with your computer. Every device needs a driver in order for it to work. If there are any drivers listed, you should install them.
* If there are no updated drivers at Microsoft Update, and you know the manufacturer of the video card, contact the card manufacturer's product support service for assistance.
* If there are no updated drivers at Microsoft Update, you don't know the name of the manufacturer of the video card, and you need more help diagnosing and resolving this problem, contact your computer manufacturer's product support service.
+ Solution 1: Most recent drivers
+ Solution 2: Manually decrease Hardware Acceleration for your video adapter
This is the error message i get from microsoft and i tried both of these things and they do not work. As for the sound i disabled it in the bios and tried still crash but it took longer. Now im using another card Audigy 2 value and it crashes less frequently.

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W520 corei7 2720QM - 1 core is throttled under load!

Hi all,
I've been using my w520 for almost 2 years. It ran really great until recenty (these 2 weeks), I noticed that the core 2 & 3 constantly ran 20 degreer higher than core 0 and 1 under stress (i.e. wPrime) - please see img1 below as the screen shot of CPUID that shows the temperature under load.
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img1 - CPUID
Link to image 1
img2 - HWiNFO64 system running wPrime
Link to image 2
img3 - HWiNFO64 wPrime finished
Link to image 3
Moderator comment: Image(s) >50KB converted to link(s). Community Rules.

Ok, I've reverted the BIOS back to ver 1.36 and then 1.32, the same throttling is still happening when running wPrime. Core 2 and 3 are consistently 20c higher than others when under load ...
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Can any tech. support from Lenovo help on this issue please?
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Http problems under load

Running WL 51 w. SP3, Solaris 2.7, java 1.2.1, and using loadrunner to
simulate 160 users doing http GETs directly to the weblogic http server
(port 8001). There are a number of errors showing up in the weblogic
log that I don't understand.
First, I get a few of:
Tue Aug 08 18:13:45 GMT+00:00 2000:<E> <HTTP> Servlet request terminated
with IOException:
java.net.ProtocolException: Didn't meet stated Content-Length, wrote:
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at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.io.IOException.<init>(Compiled Code)
at java.net.ProtocolException.<init>(Compiled Code)
at
weblogic.servlet.internal.ServletOutputStreamImpl.finish(Compiled Code)
at
weblogic.servlet.internal.ServletContextManager.invokeServlet(Compiled
Code)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(Compiled
Code)
at weblogic.socket.MuxableSocketHTTP.execute(Compiled Code)
at weblogic.kernel.ExecuteThread.run(Compiled Code)
Then a bunch of:
<W> <ListenThread> Connection rejected: 'Login timed out after: '5000'
ms on socket ...
followed by:
Tue Aug 08 20:12:30 GMT+00:00 2000:<E> <Posix Performance Pack> Failure
in processSockets()
java.net.SocketException: Connection reset by peer: Connection reset by
peer
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.socketRead(Compiled Code)
at java.net.SocketInputStream.read(Compiled Code)
at weblogic.socket.PosixSocketMuxer.processSockets(Compiled
Code)
at
weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:23)
at weblogic.kernel.ExecuteThread.run(Compiled Code)
There are 4 client machines each running 40 clients, and these errors
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If I run the test just using that machine, it runs fine - it only seems
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I don't know if it's a coincidence or not, but the numbers seem too
regular - I get (in order):
1480 Connection rejected: messages
40 <Posix Performance Pack> Failure in processSockets()
40 Connection rejected: messages
80 <Posix Performance Pack> Failure in processSockets()
240 Connection rejected: messages
30 <Posix Performance Pack> Failure in processSockets()
Thoughts? Solutions?

Chris Fullerton wrote:
>
Running WL 51 w. SP3, Solaris 2.7, java 1.2.1, and using loadrunner to
simulate 160 users doing http GETs directly to the weblogic http server
(port 8001). There are a number of errors showing up in the weblogic
log that I don't understand.
First, I get a few of:
Tue Aug 08 18:13:45 GMT+00:00 2000:<E> <HTTP> Servlet request terminated
with IOException:
java.net.ProtocolException: Didn't meet stated Content-Length, wrote:
'24576' bytes instead of stated: '99596' bytes.In the last week I tried to do same things. I wrote my own tester (a
simple http-client,
multi-thread etc.) to see whats happen' when 10000 clients POSTs an
HTTP-form. And of course
I got the same exception, because I forgot to set the correct
Content-length in the CLIENT SIDE.
My first HTTP-header looks like this:
POST /pqr HTTP/1.0<CRLF>
Content-type: application/x-www-form-urlencoded<CRLF>
Content-length: 17<CRLF><CRLF>
xml=<blabla></blabla>
And it was really bad: I counted only the xml-like string, instead of
the full data (incl. "xml=")
When I corrected it was goood!
So, I think the source of Your problem isn't in the WS-side: try to
check your client...
And Your client can't close the connection before sending all data!!!
Best Regards/Üdvözlettel:
Oláh, Károly
i2c Systems & Consulting

Cache and/or Connection problems under load

I have a Kodo web app that's been running just fine in
production for many months now. However, recently the web
traffic has shot up by a huge amount, literally overnight.
But unfortunately, it's caused the app to fail very ungracefully
under the strain.
It's been a crazy few days, and I haven't been able to do
very much analysis because of higher priorities. But from
what I have been able to gleen, it now looks like Kodo is
the most likely culprit. From what I've read in other messages
here, it appears others may have been experiencing similar
problems.
My environment: Redhat Linux 8, Postgres 7.3.4 with the
included JDBC3 driver, Apache 1.3.x, Tomcat 4.1.x and the
webapp connector. Similar behavior was seen with Apache 2.x,
Tomcat 4.1.x and the JK2 connector (that was on the new machine
I setup to handle the new traffic, which, of course, died the
night before).
As I mentioned, this app has been running reliably for
months with no problems. But when placed under heavy load,
it appears to get into some sort of pathological state where
it slows down dramatically (asymptotically?) to the point where
it's effectively locked up. In one case, where the app was
left running for several hours in this state, requests were
taking 90 minutes to complete (normal is 1-5 seconds).
From what I can deduce, there seem to be four things
going on, three of which have been mentioned in recent threads
here:
1) Excessive memory consumption. When the app is
operating normally, I see fairly flat memory usage for
the JVM process. Under load, the JVM steadily expands
until it hits its heap limit. I've gotten OutOfMemory
exceptions with a heap size of 350MB, which should be plenty.
2) Level 2 cache locking issues. I've seen dozens of
threads waiting on a lock in the DataCache code. Not sure
if there's a deadlock happening here or just that the
threads are waiting on a lock that's being held for a long time.
3) Database Connection leaks or contention. I see threads
spinning in the DataSource code trying to get a connection.
I also see dozens of connections from the Postgres side which
seem to be sitting idle, but in the middle of a transaction.
When things get bad, I also see exceptions being thrown because
of timeouts waiting for a connection to become available. It's
a web app, PMs should not be tied up for more than a few seconds.
4) CPU usage pegged or nearly so for the JVM. I suspect
this is related to #3. Something very bad is going on here.
If I stop all inbound requests to the JVM when it's in this
bad state, it will continue to burn CPU at 90%+ for a very
long time. I think it will eventually finish what it's doing,
but I haven't had the luxury of waiting for it. It's definitely
not a linear slowdown proportional to the load.
Attached are my kodo.properties file and some thread stack
traces along with some comments. Any advice would be greatly
appreciated. This is not a complicated app nor am I doing
anything unusual. It doesn't seem logical that Kodo could
breakdown so dramatically under load, so I'm hoping it's some
sort of interaction thing that I can work around.
Thanks.
Ron Hitchens {mailto:[email protected]} RonSoft Technologies
(510) 494-9597 (Home Office) http://www.ronsoft.com
(707) 924-3878 (fax) Bit Twiddling At Its Finest
"Born with a broken heart" -Kenny Wayne Shepard

Please read prior posts regarding level 2 cache. It is unusable under stress
as far I am concerned. Basically entire cache gets locked on any database
read. Makes it very unscalable
Are you using 2.5.3? It will request a connection from a pool every time it
resolves reference to a PC even if it is cached in PM and therefore Kodo
does not need to read any. As result if you iterate over 100 objects in your
query and for each object resolve reference to another object (always the
same) kodo will request 100 database connections from the pool (and note
they issue rollback on every time they return a connection to the pool so
getting connection might be fairly expensive)
In conjunction with level 2 cache contention this causes application to go
into a stupor.
Try to go back to 2.5.2 (or may be 2.5.4 they promised in the near future
with a workaround) or use "persistent-manager" connection retention if you
discard PM after each HTTP invocation - it will take care of connection
pooling issue. As far as L2 cache I was unable to find any work around so
far - see if you might be better of without cache. You might if your object
graph is not very complex
"Ron Hitchens" <[email protected]> wrote in message
news:[email protected]...
>
I have a Kodo web app that's been running just fine in
production for many months now. However, recently the web
traffic has shot up by a huge amount, literally overnight.
But unfortunately, it's caused the app to fail very ungracefully
under the strain.
It's been a crazy few days, and I haven't been able to do
very much analysis because of higher priorities. But from
what I have been able to gleen, it now looks like Kodo is
the most likely culprit. From what I've read in other messages
here, it appears others may have been experiencing similar
problems.
My environment: Redhat Linux 8, Postgres 7.3.4 with the
included JDBC3 driver, Apache 1.3.x, Tomcat 4.1.x and the
webapp connector. Similar behavior was seen with Apache 2.x,
Tomcat 4.1.x and the JK2 connector (that was on the new machine
I setup to handle the new traffic, which, of course, died the
night before).
As I mentioned, this app has been running reliably for
months with no problems. But when placed under heavy load,
it appears to get into some sort of pathological state where
it slows down dramatically (asymptotically?) to the point where
it's effectively locked up. In one case, where the app was
left running for several hours in this state, requests were
taking 90 minutes to complete (normal is 1-5 seconds).
From what I can deduce, there seem to be four things
going on, three of which have been mentioned in recent threads
here:
1) Excessive memory consumption. When the app is
operating normally, I see fairly flat memory usage for
the JVM process. Under load, the JVM steadily expands
until it hits its heap limit. I've gotten OutOfMemory
exceptions with a heap size of 350MB, which should be plenty.
2) Level 2 cache locking issues. I've seen dozens of
threads waiting on a lock in the DataCache code. Not sure
if there's a deadlock happening here or just that the
threads are waiting on a lock that's being held for a long time.
3) Database Connection leaks or contention. I see threads
spinning in the DataSource code trying to get a connection.
I also see dozens of connections from the Postgres side which
seem to be sitting idle, but in the middle of a transaction.
When things get bad, I also see exceptions being thrown because
of timeouts waiting for a connection to become available. It's
a web app, PMs should not be tied up for more than a few seconds.
4) CPU usage pegged or nearly so for the JVM. I suspect
this is related to #3. Something very bad is going on here.
If I stop all inbound requests to the JVM when it's in this
bad state, it will continue to burn CPU at 90%+ for a very
long time. I think it will eventually finish what it's doing,
but I haven't had the luxury of waiting for it. It's definitely
not a linear slowdown proportional to the load.
Attached are my kodo.properties file and some thread stack
traces along with some comments. Any advice would be greatly
appreciated. This is not a complicated app nor am I doing
anything unusual. It doesn't seem logical that Kodo could
breakdown so dramatically under load, so I'm hoping it's some
sort of interaction thing that I can work around.
Thanks.
Ron Hitchens {mailto:[email protected]} RonSoft Technologies
(510) 494-9597 (Home Office) http://www.ronsoft.com
(707) 924-3878 (fax) Bit Twiddling At Its Finest
"Born with a broken heart" -Kenny Wayne Shepard
With cahce enabled, 2.5.3
Here the app had recently slowed down and then effectively locked up.
There where many outstanding web requests that were not receiving output.
At this point most threads seemed to be waiting at the same location.
There were a large number of active database connections and most of
them had open transactions (according to pg_stat_activity). The app
was not responding to any web requests.
It would seem that db transactions had been started, then the thread
got stuck for a long time on a synchronization lock in the cache lookup.
Below are two randomly chosen thread stack dumps.
Thread-72[1] where
[1] java.lang.Object.wait (native method)
[2] java.lang.Object.wait (Object.java:429)
[3]oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock.acquir
e (WriterPreferenceReadWriteLock.java:169)
[4]com.solarmetric.kodo.runtime.datacache.AbstractCacheImpl.acquireReadLock
(AbstractCacheImpl.java:384)
[5]com.solarmetric.kodo.runtime.datacache.TimedDataCache.acquireReadLock
(TimedDataCache.java:256)
[6] com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.load(DataCacheStoreManager.java:595)
[7] com.solarmetric.kodo.runtime.StateManagerImpl.loadFields(StateManagerImpl.java:2,330)
[8] com.solarmetric.kodo.runtime.StateManagerImpl.isLoaded(StateManagerImpl.java:897)
[9] com.europeasap.data.City.jdoGetname (null)
[10] com.europeasap.data.City.getName (City.java:39)
[11] com.europeasap.form.CustomerBookingForm.populateDepartureCityInfo(CustomerBookingForm.java:922)
[12] com.europeasap.form.CustomerBookingForm.onetimeInit(CustomerBookingForm.java:871)
[13] com.europeasap.form.CustomerBookingForm.populatePackageInfo(CustomerBookingForm.java:880)
[14] com.europeasap.action.CustomizeTrip.perform (CustomizeTrip.java:66)
[15] org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1,787)
[16] org.apache.struts.action.ActionServlet.process(ActionServlet.java:1,586) [17]
org.apache.struts.action.ActionServlet.doGet (ActionServlet.java:492)
[18] javax.servlet.http.HttpServlet.service (HttpServlet.java:740)
[19] javax.servlet.http.HttpServlet.service (HttpServlet.java:853)
[20] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
[21] org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
[22] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
[23]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[24] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[25] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[26] org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
[27]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[28] org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
[29]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[30] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[31] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[32] org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2,415)
[33] org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
[34]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[35] org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
[36]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[37] org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
[38]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[39] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[40] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[41] org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
[42]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[43] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[44] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[45] org.apache.catalina.connector.warp.WarpRequestHandler.handle (null)
[46] org.apache.catalina.connector.warp.WarpConnection.run (null)
[47] java.lang.Thread.run (Thread.java:534)
Thread-64[1] where
[1] java.lang.Object.wait (native method)
[2] java.lang.Object.wait (Object.java:429)
[3]oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock.acquir
e (WriterPreferenceReadWriteLock.java:169)
[4]com.solarmetric.kodo.runtime.datacache.AbstractCacheImpl.acquireReadLock
(AbstractCacheImpl.java:384)
[5]com.solarmetric.kodo.runtime.datacache.TimedDataCache.acquireReadLock
(TimedDataCache.java:256)
[6] com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.load(DataCacheStoreManager.java:595)
[7] com.solarmetric.kodo.runtime.StateManagerImpl.loadField(StateManagerImpl.java:2,248)
[8] com.solarmetric.kodo.runtime.StateManagerImpl.isLoaded(StateManagerImpl.java:899)
[9] com.europeasap.data.HotelPrices.jdoGetseasonalPrices (null)
[10] com.europeasap.data.HotelPrices.normalizeIndex(HotelPrices.java:113)
[11] com.europeasap.data.HotelPrices.getCost (HotelPrices.java:45)
[12] com.europeasap.logic.CostHelper.findLowestHotel(CostHelper.java:181)
[13] com.europeasap.logic.CostHelper.computeBasePackageCost(CostHelper.java:297)
[14] com.europeasap.logic.CostHelper.computeFinalPackageCost(CostHelper.java:246)
[15] com.europeasap.form.CustomerBookingForm.updateDisplayCosts(CustomerBookingForm.java:1,440)
[16] com.europeasap.form.CustomerBookingForm.updateCustomizeDisplayInfo(CustomerBookingForm.java:1,407)
[17] com.europeasap.action.CustomizeTrip.perform (CustomizeTrip.java:68)
[18] org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1,787)
[19] org.apache.struts.action.ActionServlet.process(ActionServlet.java:1,586) [20]
org.apache.struts.action.ActionServlet.doGet (ActionServlet.java:492)
[21] javax.servlet.http.HttpServlet.service (HttpServlet.java:740)
[22] javax.servlet.http.HttpServlet.service (HttpServlet.java:853)
[23] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
[24] org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
[25] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
[26]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[27] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[28] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[29] org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
[30]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[31] org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
[32]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[33] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[34] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[35] org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2,415)
[36] org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
[37]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[38] org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
[39]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[40] org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
[41]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[42] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[43] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[44] org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
[45]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[46] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[47] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[48] org.apache.catalina.connector.warp.WarpRequestHandler.handle (null)
[49] org.apache.catalina.connector.warp.WarpConnection.run (null)
[50] java.lang.Thread.run (Thread.java:534)
while running slow, 2.5.3
At this point, the app had been running several hours normally, then
apparently slowed down and locked up while I was away. When looking
at the app threads and database activity, everything appeared idle.
No transactions seemed to be open in the db. But the app was not
behaving normally. Web requests that did not make use of JDO worked
fine (but slow). But requests that hit the db either blocked or were
very slow to respond.
Looking back at the log, there had been a large number of requests
that threw exceptions because they could not get a connection within
five seconds.
Most threads were idle, waiting on read, but some were in the state
shown by the following two stack dumps. Unlike the cache threads above,
they did not seem to be waiting for a lock to be granted, they seemed
to be spinning in the connection management code. Apparently trying
to get a connection. I suspended and resumed the same thread repeatedly
and it always seemd to be doing the same thing. Single stepping was
very difficult because the debugger was slow to respond, apparently
because of other threads also busy spinning.
Postgres indicated that there where lots of connections open and
that they were all idle, so there should not have been a shortage
of connections in the pool. There are two mysteries here: 1) why
can't this thread get a connection? and 2) Why is it busy spinning?
Thread-56[1] where
[1]com.solarmetric.datasource.PreparedStatementCache$CacheAwareConnection.prepa
reStatement (PreparedStatementCache.java:184)
[2]com.solarmetric.datasource.PreparedStatementCache$CacheAwareConnection.prepa
reStatement (PreparedStatementCache.java:169)
[3] com.solarmetric.datasource.ConnectionWrapper.prepareStatement(ConnectionWrapper.java:199)
[4]com.solarmetric.kodo.impl.jdbc.schema.dict.AbstractDictionary.isClosed
(AbstractDictionary.java:1,912)
[5]com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.getConnectionFromFact
ory (SQLExecutionManagerImpl.java:186)
[6] com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.getConnection(SQLExecutionManagerImpl.java:147)
[7]com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.newSQLExecutionManag
er (JDBCStoreManager.java:828)
[8]com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.getSQLExecutionManag
er (JDBCStoreManager.java:714)
[9]com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.getDatastoreConnecti
on (JDBCStoreManager.java:287)
[10]com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.getDatastoreCon
nection (DataCacheStoreManager.java:465)
[11] com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.load(DataCacheStoreManager.java:591)
[12] com.solarmetric.kodo.runtime.StateManagerImpl.loadFields(StateManagerImpl.java:2,330)
[13] com.solarmetric.kodo.runtime.StateManagerImpl.isLoaded(StateManagerImpl.java:897)
[14] com.europeasap.data.City.jdoGetname (null)
[15] com.europeasap.data.City.getName (City.java:39)
[16] com.europeasap.form.CustomerBookingForm.populateDepartureCityInfo(CustomerBookingForm.java:922)
[17] com.europeasap.form.CustomerBookingForm.onetimeInit(CustomerBookingForm.java:871)
[18] com.europeasap.form.CustomerBookingForm.populatePackageInfo(CustomerBookingForm.java:880)
[19] com.europeasap.action.CustomizeTrip.perform (CustomizeTrip.java:66)
[20] org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1,787)
[21] org.apache.struts.action.ActionServlet.process(ActionServlet.java:1,586) [22]
org.apache.struts.action.ActionServlet.doGet (ActionServlet.java:492)
[23] javax.servlet.http.HttpServlet.service (HttpServlet.java:740)
[24] javax.servlet.http.HttpServlet.service (HttpServlet.java:853)
[25] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
[26] org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
[27] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
[28]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[29] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[30] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[31] org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
[32]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[33] org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
[34]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[35] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[36] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[37] org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2,415)
[38] org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
[39]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[40] org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
[41]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[42] org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
[43]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[44] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[45] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[46] org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
[47]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[48] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[49] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[50] org.apache.catalina.connector.warp.WarpRequestHandler.handle (null)
[51] org.apache.catalina.connector.warp.WarpConnection.run (null)
[52] java.lang.Thread.run (Thread.java:534)
Thread-56[1] where
[1]com.solarmetric.datasource.DataSourceImpl$AbstractPool.findConnection
(DataSourceImpl.java:826)
[2] com.solarmetric.datasource.DataSourceImpl$AbstractPool.getConnection(DataSourceImpl.java:605)
[3] com.solarmetric.datasource.DataSourceImpl.getConnection(DataSourceImpl.java:363)
[4] com.solarmetric.datasource.DataSourceImpl.getConnection(DataSourceImpl.java:356)
[5]com.solarmetric.kodo.impl.jdbc.runtime.DataSourceConnector.getConnection
(DataSourceConnector.java:63)
[6]com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.getConnectionFromFact
ory (SQLExecutionManagerImpl.java:185)
[7] com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.getConnection(SQLExecutionManagerImpl.java:147)
[8]com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.newSQLExecutionManag
er (JDBCStoreManager.java:828)
[9]com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.getSQLExecutionManag
er (JDBCStoreManager.java:714)
[10]com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.getDatastoreConnecti
on (JDBCStoreManager.java:287)
[11]com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.getDatastoreCon
nection (DataCacheStoreManager.java:465)
[12]com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.initialize
(DataCacheStoreManager.java:519)
[13] com.solarmetric.kodo.runtime.StateManagerImpl.loadInitialState(StateManagerImpl.java:215)
[14]com.solarmetric.kodo.runtime.PersistenceManagerImpl.getObjectByIdFilter
(PersistenceManagerImpl.java:1,278)
[15] com.solarmetric.kodo.runtime.PersistenceManagerImpl.getObjectById(PersistenceManagerImpl.java:1,179)
[16]com.solarmetric.kodo.runtime.datacache.query.CacheAwareQuery$CachedResultLis
t.get (CacheAwareQuery.java:432)
[17] java.util.AbstractList$Itr.next (AbstractList.java:421)
[18] com.europeasap.form.CustomerBookingForm.populateDepartureCityInfo(CustomerBookingForm.java:919)
[19] com.europeasap.form.CustomerBookingForm.onetimeInit(CustomerBookingForm.java:871)
[20] com.europeasap.form.CustomerBookingForm.populatePackageInfo(CustomerBookingForm.java:880)
[21] com.europeasap.action.CustomizeTrip.perform (CustomizeTrip.java:66)
[22] org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1,787)
[23] org.apache.struts.action.ActionServlet.process(ActionServlet.java:1,586) [24]
org.apache.struts.action.ActionServlet.doGet (ActionServlet.java:492)
[25] javax.servlet.http.HttpServlet.service (HttpServlet.java:740)
[26] javax.servlet.http.HttpServlet.service (HttpServlet.java:853)
[27] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
[28] org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
[29] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
[30]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[31] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[32] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[33] org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
[34]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[35] org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
[36]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[37] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[38] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[39] org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2,415)
[40] org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
[41]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[42] org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
[43]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[44] org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
[45]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:641)
[46] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[47] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[48] org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
[49]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[50] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[51] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[52] org.apache.catalina.connector.warp.WarpRequestHandler.handle (null)
[53] org.apache.catalina.connector.warp.WarpConnection.run (null)
[54] java.lang.Thread.run (Thread.java:534)
With cache disabled 2.4.3
This run was an accident. I inadvertently ran the app with the older
2.4.3 version of Kodo, with the cache disabled. This one got into trouble
almost immediately. It also seemed to lockup with lots of opentransactions
in the db. It's also interesting that these two threads also seem to be
hanging around the same method as in 2.5.3.
Thread-63[1] where 0x9f9
[1]com.solarmetric.datasource.PreparedStatementCache$CacheAwareConnection.prepa
reStatement (PreparedStatementCache.java:184)
[2] com.solarmetric.datasource.ConnectionWrapper.prepareStatement(ConnectionWrapper.java:377)
[3]com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.prepareStatementInter
nal (SQLExecutionManagerImpl.java:807)
[4]com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.executePreparedQueryI
nternal (SQLExecutionManagerImpl.java:761)
[5]com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.executeQueryInternal
(SQLExecutionManagerImpl.java:691)
[6] com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.executeQuery(SQLExecutionManagerImpl.java:372)
[7] com.solarmetric.kodo.impl.jdbc.SQLExecutionManagerImpl.executeQuery(SQLExecutionManagerImpl.java:356)
[8] com.solarmetric.kodo.impl.jdbc.ormapping.ClassMapping.loadByPK(ClassMapping.java:950)
[9] com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.initialize(JDBCStoreManager.java:263)
[10] com.solarmetric.kodo.runtime.StateManagerImpl.loadInitialState(StateManagerImpl.java:174)
[11]com.solarmetric.kodo.runtime.PersistenceManagerImpl.getObjectByIdFilter
(PersistenceManagerImpl.java:1,023)
[12] com.solarmetric.kodo.runtime.PersistenceManagerImpl.getObjectById(PersistenceManagerImpl.java:942)
[13] com.solarmetric.kodo.impl.jdbc.ormapping.OneToOneMapping.load(OneToOneMapping.java:147)
[14] com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.load(JDBCStoreManager.java:375)
[15] com.solarmetric.kodo.runtime.StateManagerImpl.loadField(StateManagerImpl.java:2,035)
[16] com.solarmetric.kodo.runtime.StateManagerImpl.isLoaded(StateManagerImpl.java:720)
[17] com.europeasap.data.CityMarkup.jdoGetcity (null)
[18] com.europeasap.data.CityMarkup.getCity (CityMarkup.java:30)
[19] com.europeasap.logic.CostHelper.getCityMarkup (CostHelper.java:81)
[20] com.europeasap.logic.CostHelper.computeBasePackageCost(CostHelper.java:289)
[21] com.europeasap.logic.CostHelper.computeFinalPackageCost(CostHelper.java:246)
[22] com.europeasap.form.CustomerBookingForm.updateDisplayCosts(CustomerBookingForm.java:1,440)
[23] com.europeasap.form.CustomerBookingForm.updateCustomizeDisplayInfo(CustomerBookingForm.java:1,407)
[24] com.europeasap.action.CustomizeTrip.perform (CustomizeTrip.java:68)
[25] org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1,787)
[26] org.apache.struts.action.ActionServlet.process(ActionServlet.java:1,586) [27]
org.apache.struts.action.ActionServlet.doPost (ActionServlet.java:510)
[28] javax.servlet.http.HttpServlet.service (HttpServlet.java:760)
[29] javax.servlet.http.HttpServlet.service (HttpServlet.java:853)
[30] org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
[31] org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
[32] org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
[33]org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
eNext (StandardPipeline.java:643)
[34] org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
[35] org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
[36] org.apache.catal

WL server failed to response under load

Hi
We have a quite strange situation on my sight. Under load our WL 10.3.2 server failed to response. We are using RestEasy with HttpClient version 3.1 to coordinate with web service deployed as WAR.
What we have is a calculation process that run on 4 containers based on 4 physical machines and each of them send request to WL during calculation.
Each run we see a messages from HttpClient like this:
[THREAD1] INFO   I/O exception (org.apache.commons.httpclient.NoHttpResponseException) caught when processing request: The server OUR_SERVER_NAME failed to respond
[THREAD1] INFO   Retrying request
The HttpClient make several requests until get necessary data.
I want to understand why WL can refuse connections. I read about WL thread pool that process http request and understand that WL allocate separate thread to process web request and the numbers of threads is not bounded in default configuration. Also our server is configured Maximum Open Sockets: -1 which means that the number of open sockets is unlimited.
From this thread I'd want to understand where the issue is? Is it on WL side or it's a problem of our business logic? Can you guys help to deeper investigate the situation.
What should I check more in order to understand that our WL server is configured to work with as much requests as we want?

Thanks for a good explanation!
Linux server it's not in my competencies but what we have now is:
root    soft    nofile 3072
root    hard    nofile 65536
So the upper number is really big. As I understood it's a config for whole processes in operation system.
But I go further and find these numbers for our WL managed server.
cat /proc/23085/limits
Limit                     Soft Limit           Hard Limit           Units
Max cpu time              unlimited            unlimited            seconds
Max file size             unlimited            unlimited            bytes
Max data size             unlimited            unlimited            bytes
Max stack size            10485760             unlimited            bytes
Max core file size        0                    unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             578455               578455               processes
Max open files            8192                 8192                 files
Max locked memory         32768                32768                bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       578455               578455               signals
Max msgqueue size         819200               819200               bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Again it's only a config numbers. If continue moving in this direction I'd want to see the real numbers when the server is under load. So finding these numbers I would make an assumption that the issue is here. Don't you know is there a log file or history file where I can find a max open file descriptors for WL server?

My iBooks were fine yesterday,today unable to read, message comes up; failure to load book because requested resource is missing". What do they want?

My iBooks were fine yesterday, today unable to get into book, message comes up, "failure to load book because requested resource missing"
It doesn't tell me what resource is missing, & why could I read this 12 hours ago fine.

I've got a solution, it's not so perfect, but i bet someone would come out with a better one based on mine.
Solution:
Step 1: close iBooks app and delete all existing book data
Since I have recently lost all files in my ibooks library due to something wrong with Time Machine backup, I could delete all my book data without anything to worry about.
I deleted all files in:
/Users/[usename]/Library/Containers/com.apple.BKAgentService/Data/Documents/iBoo ks
and the iBook configuration files (well, the whole folder):
/Users/zlw/Library/Containers/com.apple.iBooksX
It doesn't matter if you have deleted the whole iBooksX folder, what you would lose at most is the bookmark data, etc.
deleting all the files inside the iBooks folder of BKAgentService will enable you to redownload the file that you want correctly.
Step 2:
reopen iBooks and you will be able to download the book that you want.
Possible improvement:
there is a Books.plist file in the iBooks folder of BKAgentService, it might be possible to modify the plist and and the folders so that it's not necessary to delete them all.

Error while loading services: Failure in Loader: VerifyError: Error #1014

I have a library that, after it loads, I see this error in the console:
Failure in Loader: VerifyError: Error #1014: Class mx.collections::ArrayCollection could not be found.
I had the same problem with another library, except it had a problem with IToken. I got around this problem by changing the default linkage of libraries in build path from external to merge into code. That did not work this time.
Merging Flex libraries into service libraries does not seem to be anything close to the correct way to deal with this. Besides, it didn't some the problem every time.
What is the best way to keep these sorts of dependency errors from arising? The RSLs are included with Web apps, but not with libraries.

I have found what happened.
I created a library and created a data model within it. I created some entities within the data model. Some of those entities had collections as properties. I created the ActionScript code for the model and the collections were ArrayCollections. I moved the interfaces of the created code to a separate library.
The interfaces need to be changed from using ArrayCollection to IList. I knew enough about that to change it for the service I was trying to bring into my application. I missed another interface that had ArrayCollections as properties and that caused the error.
After cleaning up all of the ArrayCollection references from the interface library my service loaded.
The Hello Gravity video tutorial has a very good explanation on why specific implementations of Flex classes are not used in service interfaces: http://blogs.adobe.com/gravity/2011/09/09/hellogravity-sample-application/

Battery level dropping under load while plugged in

Hi all,
I'm, the otherwise happy owner of a retina Macbook Pro form July 2014 (with a 85w power supply)
I have the issue that, whenever my computer is under load and uses the discrete graphics card, its dropping power - even though the charger was connected.I know the discrete graphics card uses up more power, but honestly it cannot be true that if I play a game in high settings on the macbook (which only has a keyboard, mouse and charger connected in that case), then the battery drops... It cannot sustain itself or what? (I have never experienced this with any other laptop, so I hope for the love of God, this is not what to expect).
Also, just the other day, I was using 2x external monitors (with their own power supplies), and just watching a Twitch (videogame stream) in a browserwindow on one of the screens, and the charge started dropping, even while plugged in again -- it dropped maybe (a wild guess) 10% an hour or so.
The setup there was: I had iMessage open on the screen on the macbook - nothing else; I had a PDF displayed on the first external screen and I had a browser-window open with a video-stream on the second external screen. A mouse, keyboard, powersupply and 2x videooutputs (1x HDMI, 1x DisplayPort), was connected to the macbook at that moment...
I mentioned that I couldnt play anything with high settings, or watch a videostream while using external monitors without draining the battery power to a friend that has had a few macs - he had note experienced it before, and told me to post in here (After we agreed that since the external displays had their own power supplies, they shouldn't be dealbreakers). I'm hoping you can help me shed some light on the issue and help me. If something might need to be sent back to Apple for replacement, I'd rather do it before I personalize it too much.
Thanks alot!

Thanks for the answers I see.... A shame since the 85W charger is by my understanding the highest wattage one Oh well, thanks!

Failure to Load Project: OA Express Datatypes not Compatible with SignalExpress 2014

Hi,
since a few days now, I am trying to get SignalExpress 2014 Full running on my workstation. I deinstalled and reinstalled all National Instruments components multiple times, but I always receive the following error (see also the picture attached) when I try to open a certain project:
Failure to load project
Installed component versions are not compatible with the version of the SignalExpress 2014. Please install the latest versions of the following:
1) OA Express Datatypes
Previously, there was also "DAQ Assistant" mentioned in the list of missing components/components with incompatible versions, but I could solve this with installaing NI-DAQmx. But I could not find anything looking for "OA Express Datatypes" --- I neither know in what package this component is located nor what the purpose of this component is.
Any help is appreciated.

Just did a downgrade and it's working again, here are my versions.
linux 3.9.9-1
linux-headers 3.9.9-1
nvidia 319.32-2
nvidia-utils 319.32-1
bbswitch 0.7-4
If you have conflicts, I found it easiest to remove those (bbswitch, virtualbox in my case), downgrade linux and then install the appropriate bbs/vb packages

Why has my mail started storing under Load More Messages. I'm now unable to access my mail messages.

Why has my mail started storing under Load More Messages. I'm now unable to access my mail messages.

This is my basic, first start, recommended "fix" when these types of weird, unexplained things occur on the iPad. Give it a try. After you reboot, go back to the mail app and see if the messages will load.
Quit the mail app completely and reboot the iPad.
Go to the home screen first by tapping the home button. Double tap the home button and the recents tray will appear with all of your recent apps displayed at the bottom. Tap and hold down on any app icon until it begins to wiggle. Tap the minus sign in the upper left corner of the app that you want to close. Tap the home button or anywhere above the task bar.
Reboot the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider if it appears on the screen - let go of the buttons. Let the iPad start up.

Dv8315nr drops to battery while plugged in, especially under load

Have the dv8315nr and it keeps dropping to battery while plugged in, especially when the PC is under load, such as games or using CD drive. The power block is ok, it has been tested with other power blocks and the issue still happens. If you unplug the power at the pc and plug it back in, it will (most of the time) go back into a charging state. I sent to hp while under the extended warranty and they sent it back with the diagnosis of "battery was bad, needed new battery".....and it worked ok until just out of warranty then started again.
I don't think it's the battery, since it happens with or without the battery in place (of course it dies completely when the power drops w/o battery in).
Has anyone experienced this and if so, have a method to fix it? I suspect there is a hardware problem with the power supply in the laptop.
This question was solved.
View Solution.

It sounds like the beginning stages of a bad power jack. That is the place where you insert the AC adapter into the laptop. The problem is very common and requires that a new jack be installed. Fortunately for you, the dv8000 has the power jack as a separate plug-in module...it does not require soldering just removal and replacement.
Here is an internet ad for a company that does the repair. I am not suggesting you hire them but they do post some nice pictures of the internal workings of the dv8000 series so you can understand what I am writing about. The repair job is only modestly hard; not nearly as bad as if soldering were needed. The part is readily available.
Repair ad with pictures

X220 - What's your CPU temp under load?

Running SC2 for a few minutes and my CPU was sitting at 92 C consistently (i5 2520). Yikes!
What temperatures are you getting under load?
43C idle.

no not really, it seems the problem only came after the recent BIOS update. I will have a look at this issue when i have more time on my hand.
When running on battery saver mode, the temperature drops to 45 degrees, which is good as this is the setting i use most of the time.
P.S. The ambient temperature in Australia is more than 30 degrees celsius, so that could also contribute to the issue of overheating.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

JDK 1.3.1_08 Under load on linux (RH7.3)

I have been running JDK 1.3.1 on linux under a development environment for quite a long time (2+ years) without issue, running a large Java application cinsisting of EJBs, and Web apps being run by BEA Weblogic. In an effort to cut costs we are migrating to linux for our production systems.
During the testing phase of running our applications on a dual-SMP Xeon based server with 2 GB of RAM we had no issues. However under load the java child processes (threads to the JVM) are getting very low priorities (15-19) and have a status of "SN" sleeping, and low-priority. If you run pstack on the PPID of the java processes they seem to be 'stuck' in nanosleep.
Does anyone out there have experiencing running large apps under high load on linux platforms?

had no issues. However under load the java child
processes (threads to the JVM) are getting very low
priorities (15-19) and have a status of "SN" sleeping,
and low-priority. Every Linux JVM that I know does not use native thread priorities (nice levels) at all, so if you are seeing child PIDs at the 15-19 range, someone most likely started the JVM at the exact same nice level. How many runtimes do you have running? What are your 5, 10, and 15 minute load averages? Are they under 2.0? Can you start your runtimes at a lower nice level?
Does anyone out there have experiencing running large
apps under high load on linux platforms?The `S' you see w/ ps is not particularly indicative that its stuck in this queue, just may be waiting for IO. Adjust your runtime nice level to 10 and under if your load is high and you have a higher IO priority runtime (as you have a dual-proc system).

E520 Overheating 60 degrees idle 90 degrees under load

Hello all, I have had my edge E520 for quite a few years and now I believe that it may be thermal throttling games and applications etc.
At idle it runs at around 50-60 degrees Idle, and under load it can reach anywhere upto 93-4 degrees Celcius.
New compound has been applied bi-annually on this latop for it's whole lifetime. Is the heatsink no longer doing it's job? It's dust free. The fan seems to working fine on the heatsink, so I don't know where else to look at.
Cheers, Matt.

Well you should not count those in the power supply. Typically to balance you would want to have the same volume of air coming in as is going out. So if the 120's are both the same and both 80's are the same then you would get better airflow having an 80 and a 120 on intake and then repeat on the outtake side. Ideally then if you have a fan controller you would want both 80's chained ton one control and both 120's chained to another. That way when you controil fan speeds you will stay balanced. Note though you need a good fan controller to do this and you will have to check ratings to see if you can tie the fans together without overloading the controller.

Failure under load

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