Slow WebLogic Starts
If Weblogic is booting slowly on Linux, it might be a low entropy situation. To view your entropy available:
sudo watch -n 1 cat /proc/sys/kernel/random/entropy_avail
If entropy is less than 1000, you should install a tool to help generate more entropy.
haveged
haveged
is one tool to help generate entroy on Linux.
Linux 6
sudo rpm -Uvh https://download.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
sudo yum install haveged -y
sudo chkconfig haveged on
sudo /usr/sbin/haveged -w 1024
Linux 7
sudo rpm -Uvh http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum install haveged -y
sudo systemctl enable --now haveged
Verify Entropy Levels
Test that entropy is added to the system.
cat /dev/random | rngtest -c 1000