When Run $./sbin/start-master.sh Obtaining Errors

[#1]

Hello -

I have installed a 4 node Spark-3.3.1 running on YARN.  The nodes are:  node-master, node1, node2, node3 and node4.  I am using JAVA 8.

Spark is working.

I have configured Spark to use 3rd party PKI certificates and successfully created the keystore and truststore.  I copied the keystore and truststore to the Spark/conf directory.

I added the following to the spark-defaults.conf file:

spark.ssl.enabled                                           true

spark.ssl.enabledAlgorithms                          TLS_RSA_WITH_AES_256_GCM_SHA384

spark.ssl.protocol                                            TLSv1.2

spark.ssl.keyPassword                                   key_password (i entered the correct keypassword)

spark.ssl.keyStore                                          /path/to/my_key_store ( i entered the correct path to include the file name)
spark.ssl.keyStore

spark.ssl.keyStorePassword

spark.ssl.truststore

spark.ssl.trustStorePassword

I then started the spark cluster, 

$./sbin/start-master.sh

I looked in the log specified when i ran start-master.sh, and this is what the log contained:

INFO Master:  Started daemon with process name: 6096@IP...

INFO SignalUtils:  Registering signal handler for TERM

INFO SignalUtils: Registering signal handler for HUP

INFO SignalUtils: Registering signal for INT

INFO SecurityManager: Changing view acls to:  hadoop

INFO SecurityManager: Changing modify acls to: hadoop

INFO SecurityManager: Changing view acls groups to:

INFO SecurityManager: Changing modify acls groups to:

INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(hadoop); groups with view permissions: Set(); users with modify permissions: Set(hadoop); groups with modify permissions: Set()

INFO Utils: Successfully started service 'sparkMaster' on port 7077

INFO Master: Starting Spark master at spark://ip...:7077

INFO Master:  Running Spark version 3.3.1

WARN SslContextFactory:  No supported Cipher Suite from [...it appears to be a complete list of the ciphers supported by Java 8...] e.g., TLS_AES_256_GCM_SHA384, TLS_AES_128_GCM_SHA2556...and this repeats w/ 45 cipher entries...

INFO Utils: Successfully started service 'MasterUI (HTTPS)' on port 8480

INFO Utils: Successfully started service 'MasterUI' on port 8080

INFO MasterWebUI:  Boiund MasterWebUI to 0.0.0.0 and started https://node-master:8480

INFO Master:  I have been elected leader!  New state:  ALIVE

Can anyone shed light on the meaning of the warning above?  And, why is it spitting out all of the Java 8 ciphers?

Thank you for any guidance/recommendations anyone can provide.

[#2]

And, just to be complete, i did enter the correct values for the following items in the spark-default.conf file:

spark.ssl.keyStore

spark.ssl.keyStorePassword

spark.ssl.truststore

spark.ssl.trustStorePassword

[#3]

Additionally, i copied the keystore and truststore to the node-master.  I did not yet copy the keystore and truststore to node1, node2, node3 and node4.