Java Performance Pack

What is Java Performance Pack?
Where can I download it?

http://java.sun.com/products/java-media/jmf/2.1.1/setup.html

Similar Messages

Error BEA-000438 - Unable to load performance pack. Using Java I/O instead.

On a Solaris 9 machime, 64 bits architecture, j2sdk1.4.2_08, Weblogic Server 8.1 SP2
 when I try to deploy the application, launching java wiht "-d64" option I get :
 <Jun 22, 2005 12:12:41 PM CEST> <Error> <Socket> <BEA-000438> <Unable to load performance pack. Using Java I/O instead.
 Please ensure that libmuxer library is in
 :'/export/home/j2se/j2sdk1.4.2_08/jre/lib/sparcv9/server:/export/home/j2se/j2sdk1.4.2_08/jre/lib/sparcv9:/export/home/Aplics/Apl1/WEB-INF/lib::/usr/local/bea/weblogic81/server/lib/solaris:/usr/local/bea/weblogic81/server/lib/solaris/oci920_8:/usr/lib'
 libmuxer exist on /usr/local/bea/weblogic81/server/lib/solaris
 Any idea?
 Thanks

 Can you post more details ?
 Sergi
 Jiffy <[email protected]> wrote:
 >error:
 > <2004-3-12 %u4E0B%u534815%u65F648%u520654%u79D2 CST> <Error> <Socket>
 ><BEA-000438> <Unable to load performance pack. Using Java I/O instead.
 >Please ensure that wlntio.dll is in: 'D:D:/bea/weblogic81/server/bin'
 >>

Unable to Load Performance Pack / No muxer in java.library.path

When I start weblogic (version 7.0, running under jdk 1.4.1 on Win XP),
I'm getting the following error:
<Sep 30, 2002 9:03:02 AM CDT> <Error> <socket> <000433> <Unable to load
performance pack, using Java I/O instead.
java.lang.UnsatisfiedLinkError: no muxer in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1403)
at java.lang.Runtime.loadLibrary0(Runtime.java:788)
at java.lang.System.loadLibrary(System.java:832)
at weblogic.socket.PosixSocketMuxer.<init>
(PosixSocketMuxer.java:179)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance
(NativeConstruct
orAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance
(DelegatingC
onstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance
(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:306)
at java.lang.Class.newInstance(Class.java:259)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:54)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:37)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:199)
>
Can anyone tell me what this error means, and if there is a fix or
workaround? Any help will be appreciated!
Thanks,
Tim Perrigo

This happens with WebLogic every time when Windows version changes:
in 1.3.1 system property "os.name" is "windows 2000" when running on XP, and
in 1.4 it is "windows XP". Since Windows names are hardcoded somewhere in
WebLogic,
and it doesn't know anything about Windows XP, it thinks that it is running
on Unix and
attempts to load Posix performance pack (as you can see in the exception
stacktrace).
You can fix this by adding -Dos.name="windows 2000" to the command line.
"Tim Perrigo" <[email protected]> wrote in message
news:[email protected]..
When I start weblogic (version 7.0, running under jdk 1.4.1 on Win XP),
I'm getting the following error:
<Sep 30, 2002 9:03:02 AM CDT> <Error> <socket> <000433> <Unable to load
performance pack, using Java I/O instead.
java.lang.UnsatisfiedLinkError: no muxer in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1403)
at java.lang.Runtime.loadLibrary0(Runtime.java:788)
at java.lang.System.loadLibrary(System.java:832)
at weblogic.socket.PosixSocketMuxer.<init>
(PosixSocketMuxer.java:179)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance
(NativeConstruct
orAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance
(DelegatingC
onstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance
(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:306)
at java.lang.Class.newInstance(Class.java:259)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:54)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:37)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:199)
>
Can anyone tell me what this error means, and if there is a fix or
workaround? Any help will be appreciated!
Thanks,
Tim Perrigo--
Dimitri

Unable to load performance pack, using Java I/O.

Hi there,
I am trying to start weblogic 6.0 from jBuilder. It does start, and
working. But, I got the one problem about loading performance pack. The
message is the following. Any comment?
Thank you
----------------------------------------->Starting WebLogic Server ....
<Jun 27, 2001 1:35:13 PM EDT> <Notice> <Management> <Loading configuration
file C:\bea\wlserver6.0sp1\config\mydomain\config.xml ...>
log file:
C:\bea\wlserver6.0sp1\config\mydomain\config\config\mydomain\logs\weblogic.l
og
<Jun 27, 2001 1:35:14 PM EDT> <Info> <Logging> <Only log messages of
severity "Error" or worse will be displayed in this window. This can be
changed at Admin Console> mydomain> Servers> myserver> Logging> General>
Stdout severity threshold>
<Jun 27, 2001 1:35:46 PM EDT> <Notice> <WebLogicServer> <ListenThread
listening on port 7001>
<Jun 27, 2001 1:35:46 PM EDT> <Notice> <WebLogicServer> <WebLogic Server
started>
<Jun 27, 2001 1:35:46 PM EDT> <Error> <Performance Pack> <Unable to load
performance pack, using Java I/O.
java.lang.UnsatisfiedLinkError: no wlntio in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1312)
at java.lang.Runtime.loadLibrary0(Runtime.java:749)
at java.lang.System.loadLibrary(System.java:820)
at weblogic.socket.NTSocketMuxer.<init>(NTSocketMuxer.java:173)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:126)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:83)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:224)
>

Thank you
But, it does not work. It does the same. Here is the message.
------------------------------------------------------------>C:\bea\jdk130\bin\javaw -classpath
"S:\Java\classes;C:\jdk1.3\jre\lib\rt.jar;S:\Java\lib\activation.jar;S:\Java
\lib\classes12.zip;S:\Java\lib\cos.jar;S:\Java\lib\dx3.0.jar;S:\Java\lib\dx3
.0-res.jar;S:\Java\lib\fscontext.jar;S:\Java\lib\j2ee.jar;S:\Java\lib\java40
.jar;S:\Java\lib\jgl3.1.0.jar;S:\Java\lib\jsdk21.jar;S:\Java\lib\junit.jar;S
:\Java\lib\mail.jar;S:\Java\lib\msclasses.zip;S:\Java\lib\rootriver.report.j
ar;S:\Java\lib\servlet.jar;S:\Java\lib\ServletExecDebugger.jar;S:\Java\lib\s
truts.jar;C:\bea\wlserver6.0sp1\lib\weblogic.jar;C:\bea\wlserver6.0sp1\lib\x
mlx.jar;C:\bea\wlserver6.0sp1\bin;C:\junit3.5\junit.jar;C:\jakarta-struts-1.
0-b1\lib\struts.jar;C:\JBuilder4\jdk1.3\demo\jfc\Java2D\Java2Demo.jar;C:\JBu
ilder4\jdk1.3\jre\lib\i18n.jar;C:\JBuilder4\jdk1.3\jre\lib\jaws.jar;C:\JBuil
der4\jdk1.3\jre\lib\rt.jar;C:\JBuilder4\jdk1.3\jre\lib\sunrsasign.jar;C:\JBu
ilder4\jdk1.3\lib\dt.jar;C:\JBuilder4\jdk1.3\lib\tools.jar" -ms64m -mx64m -
classpath
"C:\bea\wlserver6.0sp1;C:\bea\wlserver6.0sp1\bin;C:\bea\wlserver6.0sp1\lib\w
eblogic_sp.jar;C:\bea\wlserver6.0sp1\lib\weblogic.jar;S:\Java\classes;S:\Jav
a\lib\classes12.zip;C:\jakarta-struts-1.0-b1\lib\struts.jar;S:\Java\lib\dx3.
0.jar;S:\Java\lib\rootriver.report.jar;S:\Java\lib;S:\Java\lib\struts.jar;"
"-Dweblogic.RootDirectory=C:\bea\wlserver6.0sp1"
"-Dweblogic.Domain=mydomain" "-Dweblogic.Name=myserver" "-Dbea.home=c:\bea"
"-Djava.security.policy==c:\bea\wlserver6.0sp1\lib\weblogic.policy"
"-Dweblogic.management.password=password" weblogic.Server -hotspot
Starting WebLogic Server ....
<Jun 27, 2001 4:00:39 PM EDT> <Notice> <Management> <Loading configuration
file C:\bea\wlserver6.0sp1\config\mydomain\config.xml ...>
log file:
C:\bea\wlserver6.0sp1\config\mydomain\config\config\mydomain\logs\weblogic.l
og
<Jun 27, 2001 4:00:50 PM EDT> <Info> <Logging> <Only log messages of
severity "Error" or worse will be displayed in this window. This can be
changed at Admin Console> mydomain> Servers> myserver> Logging> General>
Stdout severity threshold>
<Jun 27, 2001 4:02:32 PM EDT> <Notice> <WebLogicServer> <WebLogic Server
started>
<Jun 27, 2001 4:02:32 PM EDT> <Notice> <WebLogicServer> <ListenThread
listening on port 7001>
<Jun 27, 2001 4:02:32 PM EDT> <Error> <Performance Pack> <Unable to load
performance pack, using Java I/O.
java.lang.UnsatisfiedLinkError: no wlntio in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1312)
at java.lang.Runtime.loadLibrary0(Runtime.java:749)
at java.lang.System.loadLibrary(System.java:820)
at weblogic.socket.NTSocketMuxer.<init>(NTSocketMuxer.java:173)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:126)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:83)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:224)
>

Unable to load performance pack. Using Java I/O instead. Please ensure...

Hi there.
I am running WL 1033 development version using 64-bit 1.6.1 jdk (jdk-6u21-windows-x64) and the performance is terrible. I have upped my mem settings to this:
set MEM_ARGS=-Xms1024m -Xmx1408m -XX:PermSize=1024m -XX:MaxPermSize=1024m
and after a couple of deploys, I still get out of memory errors.
I notice this message on startup: <BEA-000438> <Unable to load performance pack. Using Java I/O instead. Please ensure that wlntio.dll is in:
Could this be part of my performace issues? If so, how do I fix it?
I followed the install directions in the README.txt file from this zip file: wls1033_dev.zip
Mike

Hi Mike,
If you are using 64 bit of Windows Operating System then Make sure that you add the following directory in the *"java.library.path"*....
Directory: E:\bea1033\wlserver_10.3\server\native\win\64
Example: In your servers start Script please add the following MEM_ARGS or in JAVA_OPTIONS:

set MEM_ARGS= -Xms1024m -Xmx1408m -XX:PermSize=1024m -XX:MaxPermSize=1024m -Djava.library.path=E:\bea1033\wlserver_10.3\server\native\win\64
Thanks
Jay SenSharma
http://middlewaremagic.com/weblogic (Middleware Magic Is Here)

Unable to load performance pack, using Java I/O instead

I'm writing because we're having some troubles with the performance pack load.
We're getting this error message when the server starts:
<Feb 1, 2005 11:30:26 AM CST> <Error> <Performance Pack> <Unable to load performance pack, using Java I/O instead.
Please ensure that libmuxer library is in /bea/jdk131/jre/bin/../lib/PA_RISC2.0/native_threads:/bea/jdk131/jre/bin/../lib/PA_RISC2.0/server:/bea/jdk131/jre/bin/../lib/PA_RISC2.0:/siven/shlib:/bea/wlserver/lib/hpux11:/bea/wlserver/lib/hpux11/oci816_8:/usr/lib
java.lang.UnsatisfiedLinkError: getBuildTime
We have checked the following things:
1.- The library libmuxer.sl exists in the path: /bea/wlserver/lib/hpux11
2.- The file has the correct privileges so it can be read by the server
3.- We've run an 'nm -o libmuxter.sl |grep getBuildTime' to ensure that the method exists in the library
We have four managed servers running in the same machine and the error message apears only in one of them.
Any idea of what might be happening?
Does any one know on what OS librarys depends libmuxer.sl?
We're running WebLogic Server 6.1 SP6 on HP-UX 11.0

That's very odd that the same machine has 4 servers and only 1 sees this
error.
I'm assuming they all have the same environment/user etc. If not,
that's the first thing you should check.
I wonder if this is a resource issue in the OS. If you start a 5th
server, does it also see this error? Is it the 4th server you start
that hits this error, or just one of the 4 you run?
-- Rob
Miguel Chavez wrote:
I'm writing because we're having some troubles with the performance pack load.
We're getting this error message when the server starts:
<Feb 1, 2005 11:30:26 AM CST> <Error> <Performance Pack> <Unable to load performance pack, using Java I/O instead.
Please ensure that libmuxer library is in /bea/jdk131/jre/bin/../lib/PA_RISC2.0/native_threads:/bea/jdk131/jre/bin/../lib/PA_RISC2.0/server:/bea/jdk131/jre/bin/../lib/PA_RISC2.0:/siven/shlib:/bea/wlserver/lib/hpux11:/bea/wlserver/lib/hpux11/oci816_8:/usr/lib
java.lang.UnsatisfiedLinkError: getBuildTime
We have checked the following things:
1.- The library libmuxer.sl exists in the path: /bea/wlserver/lib/hpux11
2.- The file has the correct privileges so it can be read by the server
3.- We've run an 'nm -o libmuxter.sl |grep getBuildTime' to ensure that the method exists in the library
We have four managed servers running in the same machine and the error message apears only in one of them.
Any idea of what might be happening?
Does any one know on what OS librarys depends libmuxer.sl?
We're running WebLogic Server 6.1 SP6 on HP-UX 11.0

Unable to load performance pack, using Java I/O on WL60, sp2

Dear friends,
I am seeking help from you. When we start WL60 SP2 on Sun Soloris 5.6, we got
the following exception:
<Jul 31, 2001 5:39:53 PM EDT> <Error> <Performance Pack> <Unable to load performance
pack, using Java I/O.
java.lang.UnsatisfiedLinkError: getFdLimit
at weblogic.socket.PosixSocketMuxer.getFdLimit(Native Method)
at weblogic.socket.PosixSocketMuxer.<init>(PosixSocketMuxer.java:104)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:128)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:83)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:224)
>
Hoever, the server itself started, and our applications runs ok
(at least so far). But this exception appears every time on some user accounts.
I was wondering what causes this exception. Some user accounts in the same machine
don't have this problem.
I also wondering if it will cause performance problem when the traffic is high.
We already applied the patches.
Any hits and suggestions are welcome.
Thanks in advance.
-Ju

Dear Deyan,
Thanks for your help. We do have $WEBLOGIC_HOME/lib/solaris in LD_LIBRARY_PATH,
which is set when running ". setEnv.sh" before startWebLogic.sh.
We failed on one patch: 105210-27, for some reason.
The strange thing is: in the same machine, all WL60 instances running under user
accounts (under /users/developers/) have no such error. But it happens under some
account, like accounts under /export/home/, etc. /user/developers is mounted on
another physical machine.
-Ju
"Deyan D. Bektchiev" <[email protected]> wrote:
>
You should have the $WEBLOGIC_HOME/lib/solaris directory in your LD_LIBRARY_PATH
so that
the server can load the performance pack (which is a shared library called
libmuxer.so).
If it is present then do a ldd libmuzer.so and you will see if any libraries
that it
depends on are missing.
Also make sure you have all of the requered patches for 2.6 installed.
--dejan
Ju Rao wrote:
Dear friends,
I am seeking help from you. When we start WL60 SP2 on Sun Soloris 5.6,we got
the following exception:
<Jul 31, 2001 5:39:53 PM EDT> <Error> <Performance Pack> <Unable toload performance
pack, using Java I/O.
java.lang.UnsatisfiedLinkError: getFdLimit
at weblogic.socket.PosixSocketMuxer.getFdLimit(Native Method)
at weblogic.socket.PosixSocketMuxer.<init>(PosixSocketMuxer.java:104)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:128)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:83)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:224)
>
Hoever, the server itself started, and our applications runs ok
(at least so far). But this exception appears every time on some useraccounts.
I was wondering what causes this exception. Some user accounts in thesame machine
don't have this problem.
I also wondering if it will cause performance problem when the trafficis high.
We already applied the patches.
Any hits and suggestions are welcome.
Thanks in advance.
-JuContent-Description: Card for Deyan D. Bektchiev
begin:vcard
n:Bektchiev;Deyan
tel;home:1-650-363-6055
tel;work:1-650-289-1046
x-mozilla-html:TRUE
url:http://www.appl.net/
org:Application Networks
adr:;;444 Ramona St;Palo Alto;CA;94301;USA
version:2.1
email;internet:[email protected]
fn:Deyan D. Bektchiev
end:vcard

Difference between all-java & win-performance pack?

Hi,
Exactly what's the difference between the all-java JMF and the windows performance pack? In terms of files?
TIA,
Reggie

A few features are completely unavailable on all-java, most notably capture. Other than that, it's a matter of some formats and codecs not being available (eg, MPEG-1). The list of supported media types on the JMF home page should pretty much spell it out.
--invalidname

Native performance pack/muxer in weblogic java client

Is there any way to use the performance pack/native muxer in a client
weblogic
RMI program. We have a client callback into the WLAS server so we
were hoping that there was a way to use the performance pack for
the clients socket io???
I know about increasing thread pool size on a client and socket readers
but
was hoping we could use native.
This is weblogic 6.0 sp2
Also if this is not available in 6.0 is it available in 6.1 or going to
be available in > 6.1

No, this is not currently available. FWIW, native io only helps when you
have a lot of sockets.
-- Rob
Larry Presswood wrote:
Is there any way to use the performance pack/native muxer in a client
weblogic
RMI program. We have a client callback into the WLAS server so we
were hoping that there was a way to use the performance pack for
the clients socket io???
I know about increasing thread pool size on a client and socket readers
but
was hoping we could use native.
This is weblogic 6.0 sp2
Also if this is not available in 6.0 is it available in 6.1 or going to
be available in > 6.1--
AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
http://learnWebLogic.com
[att1.html]

Unable to load performance pack using JRockit 26.3 on Solaris 10

Hi all,
I'm getting the following error when starting up my WebLogic 9.1 server instance on Solaris 10. I've recently upgraded from Sun's JVM to JRockit 26.3. I do not get this error when using Sun's JVM.
<May 16, 2006 9:16:38 AM EDT> <Error> <Socket> <BEA-000438> <Unable to load performance pack. Using Java I/O instead. Please ensure that a native performance library is in: '/usr/local/bea91_dev1/jrockit-R26.3.0-jdk1.5.0_06/jre/lib/sparcv9/jrockit:/usr/local/bea91_dev1/jrockit-R26.3.0-jdk1.5.0_06/jre/lib/sparcv9:/usr/local/bea91_dev1/jrockit-R26.3.0-jdk1.5.0_06/jre/../lib/sparcv9:/usr/local/bea91_dev1/patch_weblogic910/profiles/default/native:/usr/local/bea91_dev1/weblogic91/server/native/solaris/sparc:/usr/local/bea91_dev1/weblogic91/server/native/solaris/sparc/oci920_8:/usr/lib'
Here's the content of the /usr/local/bea91_dev1/weblogic91/server/native/solaris/sparc folder:
libfastfile.so libstackdump.so libwlfileio2.so
libjmsc.so libterminalio.so wlauth
libmuxer.so libweblogicunix1.so wlkeytool
libnodemanager.so libwlenv.so
I also have a sparc64 directory with the same file names.
Can anyone shed some light?
Regards,
Daniel

JRockit on Solaris is 64-bit so it needs the 64-bit performance pack files, so you need to have $WL_HOME/server/native/solaris/sparc64 in the LD_LIBRARY_PATH instead of $WL_HOME/server/native/solaris/sparc
Bob

Problems with the performance pack for Linux.

Hi,
I have just installed sp9 for WL 5.1 and with it the performance pack. But I
get many of these exceptions:
Wed Jun 06 15:46:09 EDT 2001:<E> <HTTP> Connection failure
java.net.SocketException: Error in poll for fd: '30', revents: '23'
at weblogic.socket.PosixSocketMuxer.processSockets(PosixSocketMuxer.java:304)
at weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:23)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:129)
Everything seems to be fine on the site, but that exception does not look good.
Anybody knows anything about this? Thanks,
ranko

Hi all,
I'm looking for a way to determine the total number of sessions per day or
the number of requests per day / hour or the current moment.
The intention is to use this for reporting from the administration point of
view.
Thanks in advance
Michael

POSIX Performance Pack Error!

What's this means:
Fri Mar 16 13:00:36 CST 2001: <Posix Performance Pack> System has file
descriptor limits of - soft: '1024', hard: '1024'
Fri Mar 16 13:00:36 CST 2001: <Posix Performance Pack> Using effective
file descriptor limit of: '1024' open sockets/files.
Fri Mar 16 13:00:36 CST 2001: <Posix Performance Pack> Allocating: '3'
POSIX reader threads
Fri Mar 16 13:00:37 CST 2001: <WebLogicServer> WebLogic Server started
Fri Mar 16 13:01:06 CST 2001: <ServletContext-General>
seCurity_Haoyisheng: init
Fri Mar 16 13:01:24 CST 2001:<E> <HTTP> Connection failure
java.net.SocketException: Error in poll for fd: '59', revents: '59'
at
weblogic.socket.PosixSocketMuxer.processSockets(PosixSocketMuxer.java:293)
at
weblogic.socket.SocketReaderRequest.execute(SocketReaderRequest.java:23)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:135)
My system:RedHat7,SUN JDK1.3(Hotspot Server Mode),WebLogic5.1Sp8

When we start application that connects to WLS we get this message. in the LOG.
####<Mar 18, 2002 10:23:49 AM EST> <Error> <Posix Performance Pack> <fiepnprod
<myserver> <ExecuteThread: '297' for queue: 'default'> <> <> <000000> <Uncaug
Throwable in processSockets>

URGENT - WL server crash in production - Native performance pack ??

Hi,
We are experiencing periodic crashes in our production environment of the
nature where WLS just stops running and exits out, i.e. the JVM exits
abruptly. Many times we have seen http tunneling / socket related exception
just before the crash occurs.
Following is our configuration -
WL 4.5.1 service pack 13
JDK 1.1.7B
OS: Windows NT 4.0, sp 5
Oracle 8.1.5 with Oracle Thin drivers for JDK 1.1.7
Native IO : true i.e we are using the NT performance pack.
The latest exception that we have seen is as under -
Wed Jan 24 11:01:46 EST 2001:<E> <HTTP> Servlet request terminiated with
RuntimeException:
Wed Jan 24 11:01:46 EST 2001:<E> <HTTP> java.lang.NullPointerException
at weblogic.socket.TunnelContext.getServlet(Compiled Code)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(Compiled Code)
at weblogic.socket.MuxableSocketHTTP.execute(Compiled Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
This seems to be a problem related to the use of performance pack and native
sockets during HTTP tunneling. In the latest crash, we got the exception
pasted above and the server crashed about 2 seconds after that. We have seen
things in the recent past where we get a HTTP tunneling related exception
and the server exits immediately afterwards.
Is anybody using the native performance packs in their production
environment on the above mentioned configuration? Has anybody seen this kind
of behaviour? Does anybody have any input on the use of native performance
pack (nativeIO) and its pitfalls in WLS 4.5.1 and sp 13 or otherwise?
Some research and investigation from our side has revealed the following
(hope it helps, but want to know more and for sure) -
In the weblogic.socket.NTSocketMuxer.java, there is an infinite loop that
tries to send HTTP tunnel keep alive messages to the clients. There it tries
to get the TunnelServlet to send the message. It gets a runtime exception
(the one in the trace above) but that is caught and the loop goes on. But on
the next pass through (in about 2 secs. or so), it makes a some native calls
(getNextSocket(), deleteIoStructure() and memcpy() which are all native
methods). Experience says that all native calls are prone to serious
problems.
So, does anybody have any info./solution/suggestion to shed some light on
this issue. This is an urgent issue as it is affection the production
environment.
Thanks in advance.
-SG

No, this is not currently available. FWIW, native io only helps when you
have a lot of sockets.
-- Rob
Larry Presswood wrote:
Is there any way to use the performance pack/native muxer in a client
weblogic
RMI program. We have a client callback into the WLAS server so we
were hoping that there was a way to use the performance pack for
the clients socket io???
I know about increasing thread pool size on a client and socket readers
but
was hoping we could use native.
This is weblogic 6.0 sp2
Also if this is not available in 6.0 is it available in 6.1 or going to
be available in > 6.1--
AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
http://learnWebLogic.com
[att1.html]

WLS6.0 Performance Pack error

Hi,
I have a Fresh install under Solaris and when I start the Weblogic Server 6.0
I have this error
<Aug 26, 2001 10:18:37 PM GMT-05:00> <Notice> <WebLogicServer> <WebLogic Server
started>
<Aug 26, 2001 10:18:37 PM GMT-05:00> <Notice> <WebLogicServer> <SSLListenThread
listening on port 7002>
<Aug 26, 2001 10:18:37 PM GMT-05:00> <Notice> <WebLogicServer> <ListenThread listening
on port 7001>
<Aug 26, 2001 10:18:37 PM GMT-05:00> <Error> <Performance Pack> <Unable to load
performance pack, using Java I/O.
java.lang.UnsatisfiedLinkError: getFdLimit
at weblogic.socket.PosixSocketMuxer.getFdLimit(Native Method)
at weblogic.socket.PosixSocketMuxer.<init>(PosixSocketMuxer.java:104)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:128)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:83)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:224)
>
And I never installed the Performance Pack or something like that can you Help
me?
Thanx Alot!!

1. Set ld_library_path enviornment variable as per BEA docs.
2.You don't have to install Performance pack. You have Enabled Performance Packs
or by default performance pack are enabled on sun solaris.
Here is a step :
To use the Administration Console to make sure performance packs are enabled:
Start the WebLogic Server Console.
Open the Servers folder in the navigation tree.
Select your server (myserver in a default installation) in the Servers folder.
Select the Configuration tab.
Select the Tuning tab.
If the Native IO Enabled check box is not selected, select the check box.
Click Apply.
Restart your sever.
Thanks
Jignesh Patel

Unable to load performance pack

Hi all,
Can anyone solve this problem.
I am starting weblogic server and it gives me message
"Unable to load performance pack, using java i/o.
It starts the server but it gives me above exception also.
Thanks.
Zahid.

Zahid,
Can you please provide the server version , service pack level and the
OS information.
Thanks
[email protected] wrote:
I get the same error. Here's the error message I get:
<Jan 28, 2002 10:57:59 AM EST> <Error> <Performance Pack> <Unable to
load perfor
mance pack, using Java I/O.
java.lang.UnsatisfiedLinkError: no wlntio in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1312)
at java.lang.Runtime.loadLibrary0(Runtime.java:749)
at java.lang.System.loadLibrary(System.java:820)
at weblogic.socket.NTSocketMuxer.<init>(NTSocketMuxer.java:173)
at java.lang.Class.newInstance0(Native Method)
at java.lang.Class.newInstance(Class.java:237)
at
weblogic.socket.SocketMuxer.makeTheMuxer(SocketMuxer.java:126)
at weblogic.socket.SocketMuxer.getMuxer(SocketMuxer.java:83)
at weblogic.t3.srvr.ListenThread.run(ListenThread.java:232)
zahid wrote:
Hi all,
Can anyone solve this problem.
I am starting weblogic server and it gives me message
"Unable to load performance pack, using java i/o.
It starts the server but it gives me above exception also.
Thanks.
Zahid.

Java Performance Pack

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