Installer does not respond (appears hung) towards the end of installation on Linux

Products

• Autosys Workload Automation
• CA Workload Automation AE - Scheduler (AutoSys)

Issue/Introduction

Towards the end of the installation, the Installer does not respond (appears hung)

Environment

Release : 12.0, 12.0 SP1

Component : WORKLOAD CONTROL CENTER, AUTOSYS

Cause

/tmp/cawa_installer.log has an entry like this at the end

2021-05-19 11:52:43,212 [main] DEBUG com.ca.wla.ae.installer.util.FileUtil - Does file exists?/opt/CA/WorkloadAutomationAE/autouser.ACE/webserver/conf/.keystore : false
2021-05-19 11:52:43,212 [main] INFO  com.ca.wla.ae.installer.util.KeyStoreUtil - Keystore generation started by command .../opt/CA/WorkloadAutomationAE/JRE_WA/bin/keytool -genkey -alias tomcat -keyalg RSA -keystore /opt/CA/WorkloadAutomationAE/autouser.ACE/webserver/conf/.keystore -provider org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider -providerpath /mnt/autosys-iso/modules/JARS/bc-fips-1.0.1.jar -storepass changeit -keypass changeit -dname "CN=AEServerName, OU=WAAE, O=CA" -validity 825 -keysize 1024 -storetype BCFKS

 

keytool command to create this keystore is taking up time.

 

This occurs on certain machines where the entropy to generate the random output is less.

- To confirm the insufficient entropy, on your Linux machine, run cat /dev/random. You may notice it hangs.  

- Available entropy can also be checked by:   cat /proc/sys/kernel/random/entropy_avail             This should be >500 for the system to perform reasonably quickly.

 

 

Resolution

To prevent the hang, on your Linux machine, use the following commands to install the rng-tools package and then start the rngd daemon.

yum install rng-tools  #installs the rng-tools package.
      service rngd start #starts the rngd daemon

 

Restart the installer