Unable to start opmn "RCV: Permission denied" solution

July 10, 2010, 8:35 am

Issue

Earlier user have started/stopped the opmn process as an incorrect user (such as root) but are now logged in as the unix user that owns the Application Server installation. The AS unix owner then experiences permission related errors communicating with the root initiated OPMN process. He will not be able to start/shutdown the opmn related processes.

Implementation

ØFirst check the ownership of the running "opmn -d" processes using below command:

$ ps -ef|grep 'opmn -d'|grep -v 'grep'

root 31011 1 0 09:08 ? 00:00:00 /as1013/app/oracle/product/mid101300a/opmn/bin/opmn -d

root 31012 31011 0 09:08 ? 00:00:00 /as1013/app/oracle/product/mid101300a/opmn/bin/opmn -d

ØLog in to the UNIX account that owns the current "opmn -d" processes (this may require root privileges).

ØUse "opmnctl stopall" to stop the opmn daemon and all processes

ØUse "ps -ef|grep 'opmn -d'|grep -v 'grep'" to confirm the two "opmn -d" processes have been terminated.If not terminated - use "kill -9 " on each PID to force this if necessary (again, this may need root privileges)

ØReview the PID column from the "opmnctl status -l" and confirm that each process has been stopped.If not stopped simialrly use "kill -9 " on each PID to force this if necessary (again, this may need root privileges)

ØFor the directory of each OC4J instance that exists below $ORACLE_HOME/j2ee,

rename the "persistence" directory to "persistence.old"

ØOr else an alternative to earlier step delete .lock files in the persistence folder. The owner

should be the user with which the opmn was started/shutdown last time [like root in our case] . (again, this may need root privileges)

ØConfirm if any files under the $ORACLE_HOME have been created under the incorrect unix account with below command

$ find $ORACLE_HOME -user root –print

ØWith the exception of files below the $ORACLE_HOME/Apache/Apache/bin directory,use "chown" to reset the owner and group of each files that has changed.

ØLog out from the incorrect UNIX account and log back in as the UNIX user owning the AS installation.

ØStart opmn and desired managed processes.Should work fine.

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Setting BPEL Timeout Parameters

July 10, 2010, 8:38 am

≫ Next: Illegal State Exception BRM Invocation Solution

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The values to which you set the transaction-timeout and syncMaxWaitTime properties can impact whether a transaction scope successfully completes or times out and catches exception errors. For example, assume you have two processes:

TimeoutSubprocess (A synchronous detail process that includes a wait activity set to three minutes)

TimeoutMainProcess (An asynchronous main process that calls the TimeoutSubprocess)

If syncMaxWaitTime is set to 45 seconds (the default value) and transaction-timeout is set to 30 seconds, after 45 seconds the main process continues running and does not successfully complete and catch the following exception error as expected:

com.oracle.bpel.client.delivery.ReceiveTimeOutException

In the domain.log file, the following exception error displays:

An exception occurred during transaction completion:; nested exception is:

javax.transaction.RollbackException: Timed out

Perform the following procedures for the main process to successfully complete and catch the exception error.

Set the transaction-timeout and syncMaxWaitTime properties as follows:

Property:

transaction-timeout

File Location:

$SOA_Home\j2ee\home\config\transaction-manager.xml

This Value Must Be:

Larger than the transaction-timeout value in orion-ejb-jar.xml and the syncMaxWaitTime value.

Example:

7200

Property:

transaction-timeout

File Location:

$SOA_Home\j2ee\home\application-deployments\orabpel\ejb_ob_engine\orion-ejb-jar.xml

This Value Must Be:

Less than the transaction-timeout value in transaction-manager.xml.

Note: You must set all transaction-timeout properties that display in this file.

Example:

3600

Property:

syncMaxWaitTime

File Location:

$SOA_Oracle_Home\bpel\domains\domain_name\config\domain.xml

where domain_name is the name of the domain to which you are deploying.

This Value Must Be:

Less than the transaction-timeout value in orion-ejb-jar.xml.

Example:

240

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Illegal State Exception BRM Invocation Solution

February 18, 2011, 9:37 am

≫ Next: Resource Exception BRM Invocation Solution

≪ Previous: Setting BPEL Timeout Parameters

ISSUE:

While invoking BRM Opcode BPEL Process gets failed with below mentioned error:

java.lang.IllegalStateException: New ManagedConnection cannot be

created for a thread which is already in BRM transaction).

SOLUTION:

The JCA Resource Adapter does not support nested transactions.

In case of a BPEL Process invoking multiple opcode above mentioned error occurs.

To set up JCA Resource Adapter transaction management in BPEL, perform the following:

In the BPEL client, set these BPEL partnerLink properties:

cacheConnections=false

useJCAConnectionPool=true

Also make sure in the JCA Resource adapter, a private connection pool is created for the connection factory.

After modification bpel.xml should look like below.

<property name="wsdlLocation">BRMTXNServiceRef.wsdl</property>

<property name="cacheConnections">false</property>

</partnerLinkBinding>

<property name="wsdlLocation">BRMBillServiceRef.wsdl</property>

<property name="cacheConnections">false</property>

</partnerLinkBinding>

↧

Resource Exception BRM Invocation Solution

February 18, 2011, 9:54 am

≫ Next: Unix Disk usage folderwise

≪ Previous: Illegal State Exception BRM Invocation Solution

ISSUE:

While invoking BRM Opcode BPEL Process gets failed with below mentioned error:

WSIF JCA Execute of operation $OPCODE_NAME' failed due to: null; nested exception is:

javax.resource.ResourceException</summary>

</part>

-<part name="detail">

<detail>javax.resource.ResourceException

</detail>

SOLUTION:

Resolution:

Add<property name="cacheWSIFPort">false</property>

in the partnerlink binding in bpel.xml of the partnerlink invoking which this error is coming.

Another resolution is to try clearing the wsdl cache at BPELConsole->BPEL Process-> Clear the wsdl cache.

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Unix Disk usage folderwise

February 18, 2011, 7:12 pm

≫ Next: Essential JARs For using BPEL API

≪ Previous: Resource Exception BRM Invocation Solution

Below given script will give the disk usage against each folder/files under any directory in a ascending manner.

du -sh $(echo $(du -sk $FILE_PATH/*|sort -n|awk '{print $2}'))

eg : du -sh $(echo $(du -sk /aiaapp/oracle/product/10.1.3.1/OracleAS/*|sort -n|awk '{print $2}'))

This will give a output result as given below:

Below given is the step by step understanding & processing logic of script :

i)du -sk $FILE_PATH/*

This will give the details of all folders/files & their sizes directly under $FILE_PATH

ii)du -sk $FILE_PATH/*|sort –n

This will sort the list based on file size

iii)du -sk $FILE_PATH /*|sort -n|awk '{print $2}'))

This will just pick the the second elements of each row (which is the file/folder name) inascending manner of their respective sizes.

iv)du -sh $(echo $(du -sk $FILE_PATH/*|sort -n|awk '{print $2}'))

This will display the file/folder sizes in Human understandable format in sequential format based on their sizes.

↧

Essential JARs For using BPEL API

February 18, 2011, 7:21 pm

≫ Next: Reset Oc4jadmin Password

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Issue

To do various kinds of activities using BPEL API through java various jar files are required. Below topic will go through the required jars and thee errors which will pop up in absence of these jars.

Error Msgs and corresponding jars

The very first jar required is orabpel.jar .In absence of which the java code won’t compile.Now while trying to run the code below error may occur.

Exception in thread "main" java.lang.NoClassDefFoundError: javax/ejb/EJBException

at com.oracle.bpel.client.util.ExceptionUtils.handleServerException(ExceptionUtils.java:76)

at com.oracle.bpel.client.delivery.DeliveryService.getDeliveryBean(DeliveryService.java:254)

at com.oracle.bpel.client.delivery.DeliveryService.request(DeliveryService.java:83)

at com.oracle.bpel.client.delivery.DeliveryService.request(DeliveryService.java:53)

at InvokeBPELProcess.InvokeBPELProcessBPELDelegator.main(InvokeBPELProcessBPELDelegator.java:39)

222Process exited with exit code 1.

To resolve this ejb.jar has to be added in class path.

Next error which may occur will look like below:

java.lang.NoClassDefFoundError: com/collaxa/common/util/NonSyncPrintWriter

at com.oracle.bpel.client.util.BeanRegistry.lookupDeliveryBean(BeanRegistry.java:293)

at com.oracle.bpel.client.delivery.DeliveryService.getDeliveryBean(DeliveryService.java:250)

at com.oracle.bpel.client.delivery.DeliveryService.request(DeliveryService.java:83)

at com.oracle.bpel.client.delivery.DeliveryService.request(DeliveryService.java:67)

at InvokeBPELProcess.InvokeBPELProcessBPELDelegator.main(InvokeBPELProcessBPELDelegator.java:36)

To resolve this orabpel-common.jar has to be added in class path.

Next error which may occur will look like below:

java.lang.Exception: Failed to create "ejb/collaxa/system/DeliveryBean" bean; exception reported is: "javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file:java.naming.factory.initial

at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:645)

at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)

at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:284)

at javax.naming.InitialContext.lookup(InitialContext.java:351)

at com.oracle.bpel.client.util.BeanRegistry.lookupDeliveryBean(BeanRegistry.java:279)