After upgrading to Performance Management 25.4.4, the data aggregator starts, but nothing is listening on its configured port (normally 8582).
Looking in the <DA_INSTALL_DIR>/IMDataAggregator/data/log/netops-data-aggregator.log file we see the following:
Caused by: java.io.IOException: Alias name [sscada] does not identify a key entry
Upgrade to Performance Management 25.4.4 or later
The alias in the keystore is not sscada.
To verify:
<DA_INSTALL_DIR>/IMDataAggregator/jre/bin/keytool -list -keystore <DA_INSTALL_DIR>/IMDataAggregator/config/ssl/keystore
Enter the keystore password when prompted.
Example output:
Enter keystore password:
Keystore type: PKCS12
Keystore provider: SUN
Your keystore contains 1 entry
1, Aug 25, 2025, PrivateKeyEntry,
The alias in this example is 1 and not sscada
Run the <DA_INSTALL_DIR>/scripts/sslConfig.sh command
Just launching the command will set the correct alias
Choose option 6 to verify this has changed
Example:
------------------------------------------
Data Aggregator HTTPS/JMX SSL Configurator
------------------------------------------
Please choose an option:
1 - Enable DA HTTPS/JMX SSL
2 - Disable DA HTTPS/JMX SSL
3 - Import a certificate into truststore
4 - Import updated DA signed certificate
5 - List truststore
6 - List keystore
7 - Generate CSR for keystore
8 - Delete a certificate from truststore or keystore
9 - Export the DA public certificate from keystore
q - Quit
------------------------------------------------
HTTPS status : ENABLED
HTTPS Connection status [port 8582]: UP
------------------------------------------------
ActiveMQ JMX over SSL status : ENABLED
ActiveMQ JMX SSL connection status : SUCCESS
------------------------------------------------
Your choice: [Default=1]:6
Enter an exact or partial alias (Blank for all):
Details (y/[n]): n
sscada, Aug 25, 2025, PrivateKeyEntry,
-------------------------------------------------------------------
Press enter to go back to the main menu.
After correcting, restart the Data Aggregator process:
systemctl stop dadaemon
systemctl start dadaemon
If you are planning to upgrade, you can check this ahead of time to avoid this issue after upgrade
<DA_INSTALL_DIR>/IMDataAggregator/jre/bin/keytool -list -keystore <DA_INSTALL_DIR>/IMDataAggregator/apache-karaf/etc/keystore
If the alias is not sscada, run the sslConfig.sh tool as noted above.