Weblogic Server Is Too Slow

Buğra PARLAYAN

2 years ago

In Oracle Weblogic, sometimes our services open slower than expected, even if it is opened, the “7001/console” screen makes us wait.

I did a little research on some servers not having these waits on some servers.

Example log as below

<Info> <IIOP> <xapp30> < xapp-1-7003> <[ACTIVE] ExecuteThread: ‘0’ for queue:
 ‘weblogic.kernel.Default (self-tuning)’>

1 2	<Info> <IIOP> <xapp30> < xapp-1-7003> <[ACTIVE] ExecuteThread: ‘0’ for queue: ‘weblogic.kernel.Default (self-tuning)’>

<<WLS Kernel>> <> <> <5721179149433> <BEA-002014> <IIOP subsystem enabled.>

1	<<WLS Kernel>> <> <> <5721179149433> <BEA-002014> <IIOP subsystem enabled.>

Now let’s come to the reason; After Weblogic services are installed on Linux, when opening, it generates a random number for security reasons and processes it to the services and affects the performance of the startup.

This number generation is done with the ” /dev/random ” command. If you want to test it yourself, you can check the turnaround time on your own server by using the “head –n 1 /dev/random” command.

Like me, if your wait times are longer than necessary, we will shorten them with ” dev/urandom ”.

First of all, we enter the java.security file with the VI editor.

$JAVA_HOME/jre/lib/security/java.security

1	$JAVA_HOME/jre/lib/security/java.security

Find and replace this line.

“securerandom.source=file:/dev/random”

1	“securerandom.source=file:/dev/random”

In its place

“securerandom.source=file:/dev/./urandom”

1	“securerandom.source=file:/dev/./urandom”

You will see the difference when you turn off all services and turn them back on.