This appendix describes how to troubleshoot issues you can encounter when using Oracle SOA Suite.
This appendix includes the following topics:
Section B.1, "Resolving Message Failure Caused By Too Many Open Files"
Section B.2, "Extending Tablespaces to Avoid Problems at Run Time"
You can receive the following error at run time or compilation time, depending on the number of JAR files being used, the use of file descriptors by JDK 6/JRE, or both.
Message send failed: Too many open files
To resolve this error, increase the number of file descriptors to at least 4096.
Use the limit command (for the C shell) or the ulimit command (for the Bash shell) to identify the value for descriptors. A value of 1024 is typically too low, especially for JDK 6.
% limit
cputime unlimited
filesize unlimited
datasize unlimited
stacksize 10240 kbytes
coredumpsize unlimited
memoryuse unlimited
vmemoryuse unlimited
descriptors 1024
memorylocked 500000 kbytes
maxproc 46720
Log in as the root user on your operating system.
Edit the /etc/security/limits.conf file to increase the value for descriptors.
For this example, the limits.conf file looks as follows after increasing the limit for all users to 4096:
#<domain> <type> <item> <value> # #* soft core 0 #* hard rss 10000 #@student hard nproc 20 #@faculty soft nproc 20 #@faculty hard nproc 50 #ftp hard nproc 0 #@student - maxlogins 4 # End of file @svrgroup soft memlock 500000 @svrgroup hard memlock 500000 * soft nofile 4096 * hard nofile 4096
Close your terminal and reopen for the change to take effect. A system restart is not required.
If the database tablespace is not extended, run time processing can be impacted. Messages are not processed or persisted, and exception errors similar to the following can appear in the log files. This is because Oracle BPEL Process Manager relies on the database to store instance data. If the database is not available, run-time processing is impacted.
INFO: MediatorServiceEngine returning after processing the request for operation = processResponse [EL Warning]: 2009.01.14 11:46:16.783--UnitOfWork(32372128)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 1.1 (Build SNAPSHOT-20081007)): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.BatchUpdateException: ORA-01691: unable to extend lob segment SH_SOAINFRA.SYS_LOB0000145067C00007$$ by 1024 in tablespace SH_SOAINFRA Error Code: 1691 Query: InsertObjectQuery(com.collaxa.cube.persistence.dto.AuditTrail@199b33d) [EL Warning]: 2009.01.14 11:46:16.782--UnitOfWork(32372128)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 1.1 (Build SNAPSHOT-20081007)): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.BatchUpdateException: ORA-01691: unable to extend lob segment SH_SOAINFRA.SYS_LOB0000145067C00007$$ by 1024 in tablespace SH_SOAINFRA . . . . . .
Ensure that you set a tablespace to automatically extend itself by a specified amount when it reaches its size limit. If you do not enable autoextend, ensure that you respond when alerted that the tablespace is reaching its critical or warning threshold size. You can respond to size alerts by manually increasing the tablespace size.
You can receive a connection timeout error under circumstances such as the following:
You run a SOA composite application with a large payload that takes more than 30 seconds to process.
You are invoking a stress test using a large payload from the Test Web Service page of Oracle Enterprise Manager Fusion Middleware Control Console.
You are passing a large number of message files (one million) into a composite with a file adapter service.
To avoid receiving timeout errors, increase the transaction timeout property as follows:
Log into Oracle WebLogic Administration Console.
Click JTA.
Change the value of Timeout Seconds (the default is 30).
Click Save.
Restart Oracle WebLogic Server.