Using Cassandra 3.0.9 version I am getting the below error:
cqlsh: Connection error: ('Unable to connect to any servers', {'127.0.0.1': UnicodeDecodeError('utf8', '\x00\x00\x00\xf0\x8f\x0e', 3, 5, 'unexpected end of data')}) ERROR [main] 2017-10-17 11:56:17,384 o.a.c.s.CassandraDaemon - Exception encountered during startup org.apache.cassandra.serializers.MarshalException: Invalid UTF-8 bytes 000000f08f0e at org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:45) at org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:28) at org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:113) at org.apache.cassandra.cql3.UntypedResultSet$Row.getString(UntypedResultSet.java:267) at org.apache.cassandra.schema.SchemaKeyspace.fetchTables(SchemaKeyspace.java:928) at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspace(SchemaKeyspace.java:891) at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspacesWithout(SchemaKeyspace.java:868) at org.apache.cassandra.schema.SchemaKeyspace.fetchNonSystemKeyspaces(SchemaKeyspace.java:856) at org.apache.cassandra.config.Schema.loadFromDisk(Schema.java:136) at org.apache.cassandra.config.Schema.loadFromDisk(Schema.java:126) at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:239) at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:568) at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:696) Thanks, Suresh.