PI' RFC Connection pool doubt.

Hi PI exports:
i have a doubt about pi' RFC Connection pool ,pi RFC receive channel can set the conn pool size ,but when start the rfc receiver channel ,is there always only one Connection pool ,or there is only one Connection pool instance?
thinks
Edited by: kevin liang on Oct 19, 2009 6:45 AM

Hi,
Connection poolins size means how many number of connection you want to make open to send data to ECC, We can define maximum number of connection in Receiver RFC Adapter,Go to additional parameters section and define Max Number of connection give the number there,thats it.Internally it works as Connection poolin mechanism.
Regards,
Raj

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Vikas,
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Connection Pool Creation
GENERAL::
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If not how to deploy the connection pool into server??)
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CONFIGURATION:
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PoolName: ramukkpool
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I have read the documentation.
I changed my class to oracle.jdbc.pool.OracleConnectionCacheImpl from
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Q? I have defined a data source in JDeveloper using
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Any help is highly appreciable.
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*******Code to make connection*********
private javax.naming.InitialContext context = null;
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Connection Pool establishment problem

Hi Experts,
we have one application with JCo mechanism. For this application,
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Your question has been answered in this [thread|connection establishment doubt;.
Please read the [rules|https://wiki.sdn.sap.com/wiki/display/HOME/RulesofEngagement], in particular - do not cross post.
-- Vladimir

RFC_FAILURE affects Connection Pool

Using VB.NET (2003) with .Net Connector 2.0.
An intermittent problem causes a RFC Call to fail, and an exception is raised in the .NET code. The Exception message is:
 See RFC trace file or SAP system log for more details
The Trace file shows:
ERROR file opened at 20051115 131423 GMT Standard
 T, SAP-REL 640,0,78 RFC-VER 3 759904 MT-SL
T:2844 Could not send rfc container 0x130
T:2844 <* RfcCall [1] : returns 1:RFC_FAILURE
T:2844 <* RfcCallReceive [1] : returns 1:RFC_FAILURE
>TS> Tue Nov 15 13:14:24 2005
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T:2844 <* RfcCleanupContext [1] : returns
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Is there any way of removing a faulty connection from the pool ? (NB Close and Dispose on the connection does not help)

The application is a Windows service - so I don't want to lose any connections. I assume that closing the connection (and not returning it) will affect the number of available connections in the pool(?).
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Original code:
Public Sub Execute_RFC(ByVal parameters as string())
' Assign SAP Connection to RFC Proxy
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Call the SAP RFC - Asynchronously
arAsyncResult = m_sapRFCProxy.BeginRFCCall( params..., AddressOf RFC_CallBack, objAsyncState)
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Try
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Catch ex As Exception
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End Try
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Call SAPConnections.ReturnConnection(sapRFCProxy.Connection)
End Sub
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Diagnostics produced by the amended code:
Trace File (Info):
2005-11-16 11:55:46Z Warning: RfcCleanupContext failed. Closing connection
dev_RFC.trc
ERROR file opened at 20051116 115546 GMT Standard T, SAP-REL 640,0,78 RFC-VER 3 759904 MT-SL
T:3068 ======> CPIC-CALL: 'CMSEND'
ERROR program state check for conversation 99610798
TIME Wed Nov 16 11:55:46 2005
RELEASE 640
COMPONENT CPIC (TCP/IP)
VERSION 3
RC 471
MODULE r3cpic.c
LINE 2576
DETAIL called function STSEND in state state=BUFFER_DATA2
COUNTER 1
T:3068 <* RfcCall [20] : returns 1:RFC_FAILURE
T:3068 <* RfcCallReceive [20] : returns 1:RFC_FAILURE
T:3068 <* RfcCleanupContext [20] : returns 1:RFC_FAILURE
Even with the change to the code, a call to a reliable RFC will now fail intermittently with:
T:2876 Could not send rfc container 0x130
T:2876 <* RfcCall [24] : returns 1:RFC_FAILURE
T:2876 <* RfcCallReceive [24] : returns 1:RFC_FAILURE
Thanks

Configuring JCo3 Connection Pool with single sign on on non SAP Java server

Hi Everyone,
i have configured a connection pool on JBoss as per JCo3 Documentation and is working great.
Now I need help to configure this connection pool with single sign on so that RFc on SAP ECC systems are executed using end users credential rather than using single user name password used to configure JCo connection pool.
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Eason, 你好！
I have exactly the same problem. Did you find a solution to this problem? If so, please let me know!

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Hi,
I have a problem with using an RFC Model in my WebApplication. So sometimes the access to the function block works, and sometimes it doesn't work. Now I know, that there is a problem with the connection pool. Look at this message:
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Hello,
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Connection pool SAPPool is exhausted

hi..
I am getting this following error in my application
om.sap.mw.jco.JCO$Exception: (106) JCO_ERROR_RESOURCE: Connection pool SAPPool is exhausted. The current pool size limit (max connections) is 50 connections.
at com.sap.mw.jco.JCO$Pool.getClient(JCO.java:5366)
at com.sap.mw.jco.JCO$PoolManager.getClient(JCO.java:6324)
at com.sap.mw.jco.JCO$PoolManager.getClient(JCO.java:6269)
at com.sap.mw.jco.JCO.getClient(JCO.java:8536)
at com.tcs.interfaces.sapConnectionUtility.JCOClient_Connection.connectToSAP(JCOClient_Connection.java:21)
at com.tcs.interfaces.wifi.outbound.DisablingWifi.disableWifi(DisablingWifi.java:110)
at com.tcs.interfaces.jco.StartJob.run(StartJob.java:68)
at java.lang.Thread.run(Thread.java:636)
The front end PMS (Property Management System) - SAP Customised product is unable to connect with the JCo Middleware server because of the above mentioned error.
The thing is that in java application I have set the maximum pool size (SAPPool) to 50.
Still we are facing this error twice a week.
Is there any kind of setting in SAP server side where JCo RFC connection limits can be set ?
Can any pls help in this regard.

After reading the url that you have pointed out: i have a question our from my
curiosity:
is there any overhead that does have if connection pool is very high say 100 and
the required is say like 70.
Thank You very much.
Rob Woollen <[email protected]> wrote:
I usually recommend that for production systems. There's some info here:
http://edocs.bea.com/wls/docs81/perform/WLSTuning.html#1123237
-- Rob
Mike wrote:
Thanks Rob,
is it a good idea to make InitialCapacity equal to the MaxCapacity?
say making InitialCapacity = MaxCapacity = 50
while thread count is also = 50
Rob Woollen <[email protected]> wrote:
Typically thread count = connection pool size is a good starting point.
You might want thread count > connection pool size if you want to
throttle work to the database, or if you have some threads which will
never require a db connection.
You might want connection pool size > thread count if remote clients
are
starting transactions or reserving connections. Another case is if
a
single thread starts multiple transactions.
-- Rob
Mike wrote:
what is the relationship between thread count and connection pool
Eg, if i have a thread count of =50
and connection pool = 36
how does these 2 parameters work together ?
is there any equation between the 2 ?
--Mike

Connection pool exausted

Dear all,
I am new to j2ee environment.
RFC from PI Java stack to PI ABAP stack failing intermittently. Error message: Error while lookupProblem when calling an adapter by using communication channel CC_RFC_LookUp (Party: , Service: PPICLNT900, Object ID: 2e663396395c3213aaecd4e7746a8ddd) XI AF API call failed. Module exception: 'error while processing the request to rfc-client: com.sap.aii.af.rfc.afcommunication.RfcAFWException: error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: resource error: could not get a client from JCO.Pool: com.sap.mw.jco.JCO$Exception: (106) JCO_ERROR_RESOURCE: Connection pool RfcClient[CC_RFC_LookUp]2e663396395c3213aaecd4e7746a8ddd is exhausted. The current pool size limit (max connections) is 1 connections.'. Cause Exception: 'error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: resource error: could not get a client from JCO.Pool: com.sap.mw.jco.JCO$Exception: (106) JCO_ERROR_RESOURCE: Connection pool RfcClient[CC_RFC_LookUp]2e663396395c3213aaecd4e7746a8ddd is exhausted. The current pool size limit (max connections) is 1 connections.'
When we go to http://hostname:50100/webdynpro/dispatcher/sap.com
we can see RFC CC_RFC_LookUp and MAx connection parameter set to 1.
Rest of RFCs are having maximum connections as 20.
Please let us know what is the procedure to change MAX connection parameter for this
particular RFC CC_RFC_LookUp and which parameter we need to change and where should we find
this parameter?
Regards,
RR

Thanks Manoj,
I have gone through VA nodes ... could please mention which node i need to make this pareameter changes.
Please note : currently all other JCO pool RFCs are set to Max connections 20 .
But this particular RFC CC_RFC_LookUp under JCO pool tab shows
max connections set to only 1.
Please let me know where in VA i will find this parameter?

Connection pool size limit error

Hi all,
I am trying to execute a BAPI function from MII, execution fails with the following message;
[ERROR] Unable to make RFC call Exception: [Problem retrieving JCO.Function object: Connection pool <ECC_Server>:800:02:EN:ECCUser is exhausted. The current pool size limit (max connections) is 1 connections.]
[WARN] [SAP_JCo_Function_0] Skipping execution of output links due to action failure.
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2. In 'SAP MII: Credential Stores' store is created and same is being used in Start Session.
3. In JCO_Function block, we can search for the Function Module and set it.
MII Version:
14.0.2 Build(82)
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Has any one seen this? please advise.
Thanks,
Message was edited by: Shridhar N

Check if there is another JCo connection configured with the same IP and User. I have found in the past that even though there are two connections configured because they have the same ip and user they are put into one pool with the lowest max pool of the two connections.

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===== BEGIN DUMP =============================================================
JRockit dump produced after 0 days, 01:05:05 on Thu Sep 16 18:27:36 2010
Additional information is available in:
E:\obopay\servers\EWP_9.2_Domain\jrockit.4516.dump
E:\obopay\servers\EWP_9.2_Domain\jrockit.4516.mdmp
If you see this dump, please open a support case with BEA and
supply as much information as you can on your system setup and
the program you were running. You can also search for solutions
to your problem at http://forums.bea.com in
the forum jrockit.developer.interest.general.
Error Message: Illegal memory access. [54]
Exception Rec: EXCEPTION_ACCESS_VIOLATION (c0000005) at 0x0095065F - memory at 0x00740060 could not be read.
Minidump : Wrote mdmp. Size is 567MB
SafeDllMode : -1
Version : BEA JRockit(R) R27.2.0-131-78843-1.5.0_10-20070320-1457-windows-ia32
GC Mode : Garbage collection optimized for throughput
GC Strategy : Generational Parallel Mark & Sweep
: Current OC phase is: not running. YC is not running.
: GC strategy for GC 36 was genparpar
: GC strategy for GC 37 was genparpar
: GC strategy for GC 38 was genparpar
: GC strategy for GC 39 was genparpar
: GC strategy for GC 40 was genparpar
: mmHeap->data = 0x00C00000, mmHeap->top = 0x10C00000
: The nurserylist starts at 0x01BE75E8 and ends at 0x0CB52440
: mmStartCompaction = 0x00C00000, mmEndCompaction = 0x01C00000
: References are 32-bit.
CPU : Intel Pentium III/Pentium III Xeon SSE SSE2 SSE3 SSSE3 EM64T
Number CPUs : 2
Tot Phys Mem : 3451408384 (3291 MB)
OS version : Microsoft Windows XP version 5.1 Service Pack 3 (Build 2600) (32-bit)
Thread System: Windows Threads
State : JVM is running
Command Line : -Djava.library.path=E:\bea\jrockit90_150_10\bin;E:\bea\jrockit90_150_10\jre\bin;E:\bea\weblogic92\server\native\win\32;E:\bea\weblogic92\server\bin;E:\bea\weblogic92\server\native\win\32\oci920_8 -Dweblogic.management.discover=false -Dplatform.home=E:\bea\weblogic92 -Dwls.home=E:\bea\weblogic92\server -Dwli.home=E:\bea\weblogic92\integration -Dweblogic.Name=myserver -Dweblogic.management.username=weblogic -Dweblogic.management.password=weblogic -Dweblogic.ext.dirs=E:\bea\patch_weblogic901\profiles\default\sys_manifest_classpath\weblogic_patch.jar Djava.security.auth.login.config=E://workspace/Bhopal/LoginModulesConfig/ewp_loginmodules.config -Djava.naming.factory.initial.ewp.remote=weblogic.jndi.WLInitialContextFactory -Dcom.ewp.proxy.is_remote=false -Djava.naming.provider.url.ewp.remote=t3://localhost:7001 -Dweblogic.webservice.verbose=true -Dweblogic.log.Log4jLoggingEnabled=true -Dweblogic.security.SSL.ignoreHostnameVerification=true Xdebug -Xnoagent -Dcom.sun.management.jmxremote -Xms256m -Xmx1024m -Dsun.java.launcher=SUN_STANDARD weblogic.Server
java.home : E:\bea\jrockit90_150_10\jre
JAVA_HOME : <not set>
JAVAOPTIONS: <not set>
PATH : E:\bea\jrockit90_150_10\jre\bin;E:\oracle\product\10.2.0\client_1\bin;C:\Program Files\PC Connectivity Solution\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Intel\DMIX;C:\Program Files\TortoiseSVN\bin
C Heap : Good; no memory allocations have failed
StackOverFlow: 0 StackOverFlowErrors have occured
OutOfMemory : 0 OutOfMemoryErrors have occured
Registers (from ThreadContext: 0x4B29E378 / OS context: 0x4B29E764):
eax = 00740060 ecx = 00740060 edx = 45a45ba0 ebx = 08c953b8
esp = 4b29ea30 ebp = 00000000 esi = 4b29ea60 edi = 4b29efb4
es = 00000023 cs = 0000001b ss = 00000023 ds = 00000023
fs = 0000003b gs = 00000000
eip = 0095065f eflags = 00010206
Stack:
(* marks the word pointed to by the stack pointer)
4b29ea30: 00981099* 08c953b8 008ab310 4b29eb34 09e5c308 009810ea
4b29ea48: 4b29ead8 0098ecd2 4b29ea60 4b29ea90 48bd8960 48bd8960
4b29ea60: 00000001 45aa0278 45a45ba0 00000007 00000000 08c953b8
4b29ea78: 08512180 4b29ef60 00000000 09d56368 09d563b0 4b29efb4
Code:
(* marks the word pointed to by the instruction pointer)
0095062c: 5e5f0cc4 c35bc033 01b85e5f 5b000000 ccccccc3 0424448b
00950644: a5f06ca3 ccccc300 cccccccc 04244c8b 01a8018b e0830774
0095065c: 8bc88bfe* 40788301 44408b03 af0f0a75 c0830841 f8e08317
00950674: ccccccc3 cccccccc cccccccc 0424448b 00f4888b 158b0000
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00400000-0040ffff E:\bea\jrockit90_150_10\bin\javaw.exe
7c900000-7c9b1fff C:\WINDOWS\system32\ntdll.dll
7c800000-7c8f5fff C:\WINDOWS\system32\kernel32.dll
7e410000-7e4a0fff C:\WINDOWS\system32\USER32.dll
77f10000-77f58fff C:\WINDOWS\system32\GDI32.dll
77dd0000-77e6afff C:\WINDOWS\system32\ADVAPI32.dll
77e70000-77f02fff C:\WINDOWS\system32\RPCRT4.dll
77fe0000-77ff0fff C:\WINDOWS\system32\Secur32.dll
77c10000-77c67fff C:\WINDOWS\system32\MSVCRT.dll
76390000-763acfff C:\WINDOWS\system32\IMM32.DLL
00820000-00a9cfff *E:\bea\jrockit90_150_10\jre\bin\jrockit\jvm.dll
76b40000-76b6cfff C:\WINDOWS\system32\WINMM.dll
71ab0000-71ac6fff C:\WINDOWS\system32\WS2_32.dll
71aa0000-71aa7fff C:\WINDOWS\system32\WS2HELP.dll
7c340000-7c395fff E:\bea\jrockit90_150_10\bin\MSVCR71.dll
5dac0000-5dac7fff C:\WINDOWS\system32\rdpsnd.dll
76360000-7636ffff C:\WINDOWS\system32\WINSTA.dll
5b860000-5b8b4fff C:\WINDOWS\system32\NETAPI32.dll
76bf0000-76bfafff C:\WINDOWS\system32\PSAPI.DLL
6d700000-6d70bfff E:\bea\jrockit90_150_10\jre\bin\verify.dll
6d370000-6d38cfff E:\bea\jrockit90_150_10\jre\bin\java.dll
6d2f0000-6d2f7fff E:\bea\jrockit90_150_10\jre\bin\hpi.dll
6d720000-6d72efff E:\bea\jrockit90_150_10\jre\bin\zip.dll
6d520000-6d527fff E:\bea\jrockit90_150_10\jre\bin\management.dll
6d530000-6d542fff E:\bea\jrockit90_150_10\jre\bin\net.dll
71a50000-71a8efff C:\WINDOWS\system32\mswsock.dll
662b0000-66307fff C:\WINDOWS\system32\hnetcfg.dll
71a90000-71a97fff C:\WINDOWS\System32\wshtcpip.dll
41c00000-41c26fff C:\WINDOWS\system32\DNSAPI.dll
41c30000-41c37fff C:\WINDOWS\System32\winrnr.dll
41c40000-41c6bfff C:\WINDOWS\system32\WLDAP32.dll
41c80000-41c85fff C:\WINDOWS\system32\rasadhlp.dll
68000000-68035fff C:\WINDOWS\system32\rsaenh.dll
769c0000-76a73fff C:\WINDOWS\system32\USERENV.dll
438b0000-438b8fff E:\bea\jrockit90_150_10\jre\bin\nio.dll
41ba0000-41ba9fff E:\bea\jrockit90_150_10\jre\bin\jmapi.dll
41bb0000-41bbdfff E:\bea\weblogic92\server\native\win\32\wlfileio2.dll
43ce0000-43cf8fff C:\WINDOWS\system32\iphlpapi.dll
43d10000-43d27fff C:\WINDOWS\system32\MPRAPI.dll
77cc0000-77cf1fff C:\WINDOWS\system32\ACTIVEDS.dll
43d30000-43d54fff C:\WINDOWS\system32\adsldpc.dll
43d60000-43d70fff C:\WINDOWS\system32\ATL.DLL
43d80000-43ebcfff C:\WINDOWS\system32\ole32.dll
43ec0000-43f4afff C:\WINDOWS\system32\OLEAUT32.dll
43f50000-43f5dfff C:\WINDOWS\system32\rtutils.dll
71bf0000-71c02fff C:\WINDOWS\system32\SAMLIB.dll
43f60000-44052fff C:\WINDOWS\system32\SETUPAPI.dll
44060000-44064fff E:\bea\weblogic92\server\native\win\32\wlntio.dll
44540000-44545fff E:\bea\jrockit90_150_10\jre\bin\rmi.dll
4d010000-4d122fff E:\bea\jrockit90_150_10\jre\bin\dbghelp.dll
"[STANDBY] ExecuteThread: '21' f" id=87 idx=0xf0 tid=4208 lastJavaFrame=0x4B29EB4C
Stack 0: start=0x4B260000, end=0x4B2A0000, guards=0x4B263000 (ok), forbidden=0x4B261000
Thread Stack Trace:
at _mmGetPossibleMovedObjectSize+15()@0x0095065F
at _refIterInit+393()@0x00981099
at _refIterInit+474()@0x009810EA
at _trProcessLocksForThread+66()@0x0098ECD2
at _javalockCouldBeLock+1047()@0x008AB417
at _javalockConvertThinToFat+42()@0x008AC13A
at RJNIjrockit_vm_Locks_convertThinLockedToFatLocked@8+15()@0x00986B1F
-- Java stack --
at jrockit/vm/Locks.convertThinLockedToFatLocked(Ljava/lang/Object;)V(Native Method)
at jrockit/vm/Locks.createMonitorAndConvert(Ljava/lang/Object;Z)Ljrockit/vm/ObjectMonitor;(Unknown Source)
at java/lang/Object.wait(J)V(Native Method)
at java/lang/Object.wait(Object.java:474)
at weblogic/common/CompletionRequest.getResult(CompletionRequest.java:109)
^-- Holding lock: weblogic/common/CompletionRequest@0x09E5C2A8[thin lock]
at weblogic/store/gxa/internal/GXATransactionImpl.commitStoreIO(GXATransactionImpl.java:99)
at weblogic/store/gxa/internal/GXATransactionImpl.doOperationCallbacks(GXATransactionImpl.java:215)
at weblogic/store/gxa/internal/GXAResourceImpl.commit(GXAResourceImpl.java:1448)
at weblogic/transaction/internal/XAServerResourceInfo.commit(XAServerResourceInfo.java:1333)
at weblogic/transaction/internal/XAServerResourceInfo.commit(XAServerResourceInfo.java:577)
at weblogic/transaction/internal/ServerSCInfo.startCommit(ServerSCInfo.java:514)
at weblogic/transaction/internal/ServerTransactionImpl.localCommit(ServerTransactionImpl.java:1993)
at weblogic/transaction/internal/ServerTransactionImpl.globalRetryCommit(ServerTransactionImpl.java:2658)
at weblogic/transaction/internal/ServerTransactionImpl.globalCommit(ServerTransactionImpl.java:2580)
at weblogic/transaction/internal/ServerTransactionImpl.internalCommit(ServerTransactionImpl.java:278)
at weblogic/transaction/internal/ServerTransactionImpl.commit(ServerTransactionImpl.java:227)
at weblogic/deployment/jms/WrappedTransactionalSession.delistFromTransaction(WrappedTransactionalSession.java:258)
^-- Holding lock: weblogic/deployment/jms/PooledSession_weblogic_jms_client_JMSXASession@0x09D56368[thin lock]
at weblogic/deployment/jms/WrappedMessageProducer.send(WrappedMessageProducer.java:149)
at com/obopay/jms/helper/BaseQueueHelper.sendMessage(BaseQueueHelper.java:107)
The above is the jrockit crash dump file..
I am using the JMS Wrapper Connection Poooling provided by Weblogic. When i use Jmeter and do the load testing for around 10 users, the server gets crashed.
I doubt something is going wrong with the Weblogic JMS Connection Pooling, please help me..

The problem doesn't look like it has anything to do with wappers per se. The stack indicates that the JVM died when the persistent store tried to invoke a standard Java synchronize operation. JVM crashes need to be analyzed by a JVM expert, so I second the suggestion to solicit help from JVM experts and/or filing a case with customer support. In the mean-time, you can probably work-around the issue by either (A) ensuring you have a recent version of the JVM installed, or (B) temporarily switching to the Sun JVM.
Regards,
tom
Edited by: TomB on Sep 17, 2010 2:33 PM

RFC connection problem

Hello All,
We are setting up communication between R/3 4.7 and SCM 5.0 system for EWM (Extended warehouse management) with RFC connection and using IDocs to transfer data from one box to another box.
IDoc from R/3 to SCM system is working fine, we are able to complete the transactions in SCM system and after successful completion all transaction in SCM it should trigger Idoc for R/3 which is not happening.
It throws error as "An RFC destination could not be specified for the logical system XXXCLNT123"
We have checked SM59 (RFC connection), WE20 (Partner profile), WE21 ( IDoc port connection) it seems fine.
Interesting thing is we are able to get information about stock from R/3 system in SCM system which are correct information.
Can anyone give some idea if we are missing something to check?
Thanks & regards
Arif Mansuri

Hi Team,
We have the same problem , which was mentioned above. Please let us know, which Message type need to be used for sending the stock information to ERP after Delivery completion
The following Process we followed
PO Creation---ERP
Inbound delivery-ERP
Inbound Delivery Process-EWM
WareHouse Task-EWM
Unloading-EWM
WareHouse Task/WareHouse Order Confirmation-EWM
Once the WT/WO is confirmed , Goods receipt status is updated automatically and "Post Processing Framwork (PPF) status shows with RED and error message says."An RFC destination could not be specified for the logical system E6SCLNT900"
Here I have one doubt, We have maintained client names as A0000039 (for EWM,but original client name is SC7CLNT100 ) and E6SCLNT900 ( for ERP , original client name also E6SCLNT900)
Will there be any issue with A0000039?(because we did not maintained as per the original client name ie SC7CLNT100)
Thank you for your help
Thank you

PI' RFC Connection pool doubt.

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