Hi, We have updated the java minor version as given below.
Older Java version "1.8.0_144" Newer Java version "1.8.0_261" Cassandra version : 2.1.16 Now we are getting below exception : INFO [main] 2020-08-19 10:55:09,364 YamlConfigurationLoader.java:89 - Configuration location: file:/etc/cassandra/default.conf/cassandra.yaml Exception (org.apache.cassandra.exceptions.ConfigurationException) encountered during startup: Invalid yaml: file:/etc/cassandra/default.conf/cassandra.yaml Error: null; Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=java.lang.reflect.InvocationTargetException; in 'reader', line 1, column 1: cluster_name: VV Cluster We did not change "*cassandra.yaml**". *Same yaml is working on other nodes running on older versions. Regards, Pushpendra