Database Reference
In-Depth Information
Operating system
Always use a 64-bit operating system instead of a 32-bit one for the Oracle SOA Suite
as a 32-bit operating system limits the available JVM memory. Verify the CPU and
memory usages under the expected load conditions for the host running the SOA
Suite application platform for potential bottlenecks. The CPU usage can be viewed by
using the top command for Linux. The memory can be verified by using free -t
-m or vmstat . For Windows, use the command systeminfo .
File descriptors
The default values of file descriptors in the Linux operating system will not be enough
to handle the required number of concurrent connections by SOA Suite. The operat-
ing system parameter ulimit sets the system-wide resource limit for a user. The de-
fault value of 1024 for a user is too low for running an Oracle SOA Suite application.
Use the ulimit or sysctl Linux commands to change the default value to at least
8192 by executing the following command:
ulimit -n 8192
The following message in the logfile indicates that you need to increase the file
descriptors:
Too many open files
Also, make changes to soft and hard file limits from limits.conf located in the
/etc/security folder for Linux systems
Adaptors
Please make sure that the operating system file descriptor is set very high if you are
using file adaptors.
Tuning JCA adaptors are important for optimum performance. Change the following
properties in the inbound and outbound JCA files.
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