Oracle 10g 10.2.0.3.0 takes 100% CPU
Hi,
We are using Web sphere commerce server (IBM) with Oracle 10g. we are currently in development phase. what ever execute (jobs) small job like uploding 100 records, CPU takes 100%. the process can't complete, it goes on.
System Details
2 CPU and 8 GB RAM Intel Based system
OS: Redhat server 5.1
SQL> show sga
Total System Global Area 2097152000 bytes
Fixed Size 1262740 bytes
Variable Size 251661164 bytes
Database Buffers 1828716544 bytes
Redo Buffers 15511552 bytes
shared_pool_size big integer 112M
java_pool_size big integer 112M
PGA and SGA
pga_aggregate_target big integer 200M
sga_target big integer 2000M
Pls could any one help on this. is it correct values SGA has or what could be the issue.
Thanks
Regards
Settu Gopal
Settu Gopal wrote:
Hi,
We are using Web sphere commerce server (IBM) with Oracle 10g. we are currently in development phase. what ever execute (jobs) small job like uploding 100 records, CPU takes 100%. the process can't complete, it goes on.Settu,
in addition you might want to trace the session to find out what it is waiting for. In 10g you can use the DBMS_MONITOR package to enable the tracing, and then use the "tkprof" utility as outlined in the article to get the trace file generated analyzed.
You can also use the V$SESSION view (BLOCKING_SESSION_STATUS, BLOCKING_SESSION, BLOCKING_INSTANCE) to find out if the session is blocked for any reason, although it shouldn't consume CPU in that case.
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/
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Hello,
I have a webapp running on Tomcat 5.0.28/RHEL 3.0. After some time (approximatively 1 hour), a java process take 100% cpu load and never stop, but the application do nothing.
Some detail on my configuration :
Distribution : Redhat Enterprise Linux 3.0 (updated)
Kernel 2.4.21-37.0.1.ELsmp
Glibc 2.3.2-95.37
JVM : JRockit 1.4.2.08 (the last one)
Tomcat : 5.0.28
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JVM param : -Xmx:256m -Xms:256m
Thanks for your answers ...Try taking thread dump (send a SIGQUIT to JRockit using "kill"). If you
get a thread dump, the VM is alive, and it's probably your java program
that's broken. In that case, make a JRA recording to see what's happening:
http://e-docs.bea.com/jrockit/docs142/usingJRA/jra.html
The methods pane is probably what you're looking for.
If you don't get any thread dump when sending a SIGQUIT to JRockit,
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Regards //Johan
Gr?goire Rolland wrote:
Hello,
I have a webapp running on Tomcat 5.0.28/RHEL 3.0. After some time (approximatively 1 hour), a java process take 100% cpu load and never stop, but the application do nothing.
Some detail on my configuration :
Distribution : Redhat Enterprise Linux 3.0 (updated)
Kernel 2.4.21-37.0.1.ELsmp
Glibc 2.3.2-95.37
JVM : JRockit 1.4.2.08 (the last one)
Tomcat : 5.0.28
Server : 2*Xeon 3GHz HT, 2Go RAM
JVM param : -Xmx:256m -Xms:256m
Thanks for your answers ... -
When I run as root or normal User
zenity --notification --text="test"
The zenity process takes 100% Cpu time
System:
Arch 32bit gnome 2.22
Last edited by brickwedde.eu (2008-05-06 11:26:00)I GOT IT... I think.
zenity --notification actually calls libnotify! I was trying out a script and suddenly realized something, because by chance dbus decided to take a break. Take a look at these two code fragments.
$ zenity --info --text "hello"
$ _
$ zenity --notification --text "hello"
libnotify-Message: Unable to get session bus: Failed to connect to socket /tmp/dbus-jmMdFXbznS: Connection refused
<hang>
<100% CPU usage>
I've figured out why: it's basic socket programming gone wrong. The notification part of zenity calls libnotify, tries to connect to libnotify's socket, and fails, using 100% CPU waiting for the connection to... end a stream that never started.
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-dav7
Last edited by dav7 (2008-05-09 00:27:30) -
Hello,
I'm wondering the best way to send a serial command when a button is pressed. Right now I have a while loop that checks if the button is pressed each time. If is is, it sends the serial command and adds the response to a text box via a shift register. If not, the original text box info is passed to the shift register. However, this loop takes 100% cpu (ok, only one core at 100% so technically %50), and I think its because the text box is getting overwriten every cycle. However, I'm not sure how else to do it. Attached is a print screen, let me know if you would like the file.
Thanks,
Eric
Solved!
Go to Solution.
Attachments:
loop1.png 42 KBAn event structure is the best way. The next best way is to simply put in a wait in the loop.
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Unofficial Forum Rules and Guidelines -
Tomcat 4.0 and Oracle 10g takes 100% CPU and grinds to a halt
Hi, I have a system to support that is currently running on Tomcat 4.0 on a Windows Server 2003 R2 SP2 machine with 3.06Ghz, 4Gb Memory, 2Gb Page file connecting to an Oracle 8.1.6 database on a Windows NT 4 virtual server with 3.2Ghz, 1152Mb Memory, 1536Mb Page file.
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Lizzielizzie8 wrote:
Hi, I have a system to support that is currently running on Tomcat 4.0 on a Windows Server 2003 R2 SP2 machine with 3.06Ghz, 4Gb Memory, 2Gb Page file connecting to an Oracle 8.1.6 database on a Windows NT 4 virtual server with 3.2Ghz, 1152Mb Memory, 1536Mb Page file.Tomcat 4? We're up to Tomcat 6. The important difference is the JDK supported. What JDK are you using for Tomcat?
>
I have another Windows virtual server 2003 R2 SP2 machine with 2Gb of memory and a 4Gb page. This server has Tomcat 4.0 and an Oracle 10.2.0.3.0 database. I have made sure that the Oracle 10g classes12.jar file is used.classes12.jar is pretty old technology. The JAR should match your JDK and version of Oracle.
I am trying to run the application on the new server. In some tests I had users logging on one by one for the first 5 users - performance was great and the application ran faster than the current live system. When I then got another 10 - 15 people logging on the CPU stuck at 100% on the server, even exploring the server was almost impossible, and the application slowed down to unworkable.You don't say anything about the whether or not you're using a connection pool or what's happening to the open connections and cursors. If you find that those are drifting up over time, it's likely that the code isn't closing resources properly.
We dont know if the problem lies with the very fact that we are trying to connect to a 10g database which is cost based and the application was written using rule based Oracle 8. Or is it the virtual server? Or is it the fact that we have both the application and the database on the same server.Database and app server should be separated, IMO.
I dont know if it is possible to have another Tomcat4.0 server running on our live server but connecting to the 10g database - what would happen with classes12.zip and classes12.jar? would there be a conflict?
I would really appreciate some help here. You should know though that I am not a hardened java programmer - I can dabble, but am an Oracle Forms, Reports, Discoverer, SQL person by trade. I am also a trainee DBA, so again am not an expert by any means.You need more data. Get some tools to see where the time is being spent. Start monitoring your Oracle connections and cursors to see what's going on. Install some filters to get raw timings on your Java calls. Without data, you're guessing in the dark.
% -
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Initially when starting Adobe Reader and opening a document everything is fine. But after a few minutes Reader takes up to 100% CPU. This also happens when starting Adobe Reader without opening a document.
It's Adobe Reader 9.1 (AdobeReader_enu-9.1.0-1.i486) on Fedora 10 (i386)Hello there,
I can reproduce the same issue. I just start acroread (without any options or files), wait some time and suddenly acroread starts to use one whole cpu. Here some information about the system:
> cat /etc/issue
CentOS release 5.2 (Final)
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Linux wumc0310 2.6.18-92.1.22.el5 #1 SMP Tue Dec 16 11:57:43 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
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I also tried the trick with
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Do you got some ideas how I can track down this problem? I tried to use
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> acroread -DEBUG acroread
the reader started and shows
Loading PlugIn /opt/Adobe/Reader9/Reader/intellinux/plug_ins/Annots.api ... [dlopen success for Annots.api, handle = 0xbf32f68]
Loading PlugIn /opt/Adobe/Reader9/Reader/intellinux/plug_ins/EScript.api ... [dlopen success for EScript.api, handle = 0xca14620]
after some minutes the next plugin info occured:
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gettimeofday({1242055601, 629918}, NULL) = 0
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gettimeofday({1242055601, 629991}, NULL) = 0
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gettimeofday({1242055601, 644659}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
gettimeofday({1242055601, 644729}, NULL) = 0
poll([{fd=3, events=POLLIN}, {fd=13, events=POLLOUT}], 2, 1) = 0
gettimeofday({1242055601, 645655}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
gettimeofday({1242055601, 645719}, NULL) = 0
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ioctl(3, FIONREAD, [0]) = 0
gettimeofday({1242055677, 855197}, NULL) = 0
poll([{fd=3, events=POLLIN}, {fd=13, events=POLLOUT, revents=POLLERR|POLLHUP}], 2, 5) = 1
gettimeofday({1242055677, 855237}, NULL) = 0
ioctl(3, FIONREAD, [0]) = 0
gettimeofday({1242055677, 855277}, NULL) = 0
poll([{fd=3, events=POLLIN}, {fd=13, events=POLLOUT, revents=POLLERR|POLLHUP}], 2, 5) = 1
(just for the record)
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SVCHost.exe takes 100% cpu on random occasions
Ok so I have had a rather interesting problem and I don't know for sure if it is related to the sound blaster card in my computer or not.
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[SOLVED] Kwin in multisession takes 100% CPU
Hi!
I dared to put this topic because I can't find workaround anywhere
When I'm opening second session, kwin sucks 100% for first user kwin process,
when I'm switching back (ctrl+alt+F7) to first session, it starts the same for second user.
It stops when I switched off KDE desktop effects.
I tried to add users to 'video' group - doesn't help
It has happened for a month or bit more and before never occured.
I'm using nvidia-304 for GForce 6150 on-board staff.
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Last edited by SeeLook (2013-12-14 19:00:30)Just tested, so far so good.
I created /etc/profile.d/00-glyield.sh containing
export __GL_YIELD="USLEEP"
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Driver "nvidia"
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Option "CoolBits" "1"
Option "TripleBuffer" "True"
EndSection
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Go to command Prompt -
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(Win XP SP2 & above) - START/ALL PROGRAMS/ACCESSORIES/Command Prompt
In the "Command Prompt" screen, type in
netsh winsock reset
Hit "ENTER" key
Restart your computer.
If you do get a prompt after restart windows to remap LSP, just click NO.
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Edited by: Funky on Jan 13, 2009 3:15 AMAfter some KGB approaches, one user with System Administrator responsibility has admit that he has run by mistake u query!
So be aware whom do you expose System Administrator responsibility!
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Windows explorer takes 100% CPU
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Let's see if we can identify where the problem is more specifically.... A few questions, in no particular order:
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Regards,
Aryeh Goretsky
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Hi,
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Thanks in Advance
balaAlso, not to add to your troubles, but this is something you really should research and know yourself.
If you're the person responsible for running AS in your organisation, then you should know how to stop, start and restart the processes whilst blindfolded (figuratively speaking).
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