Pushpendra You can check this Datastax post <https://support.datastax.com/hc/en-us/articles/360004526438-DSE-cannot-start-with-yaml-parsing-error>. Looks like a similar error. You can run cassandra-stress utility to bypass the yaml parser.
Regards Manish On Fri, Aug 21, 2020 at 11:29 AM Pushpendra Rajpoot < pushpendra.nh.rajp...@gmail.com> wrote: > Update : > > We also upgraded the Cassandra version from 2.1.16 to 3.11.2. > > On Fri, Aug 21, 2020 at 9:02 AM Pushpendra Rajpoot < > pushpendra.nh.rajp...@gmail.com> wrote: > >> 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 >> >