I am getting below error: when i am trying to start hadoop cluster
kishan@kishan-VirtualBox:/usr/local/hadoop/etc/hadoop$ start-all.sh This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.apache.hadoop.security.authentication.util.KerberosUtil (file:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.9.1.jar) to method sun.security.krb5.Config.getInstance() WARNING: Please consider reporting this to the maintainers of org.apache.hadoop.security.authentication.util.KerberosUtil WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Starting namenodes on [localhost] localhost: ssh: connect to host localhost port 22: Connection refused localhost: ssh: connect to host localhost port 22: Connection refused Starting secondary namenodes [0.0.0.0] 0.0.0.0: ssh: connect to host 0.0.0.0 port 22: Connection refused WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.apache.hadoop.security.authentication.util.KerberosUtil (file:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.9.1.jar) to method sun.security.krb5.Config.getInstance() WARNING: Please consider reporting this to the maintainers of org.apache.hadoop.security.authentication.util.KerberosUtil WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release starting yarn daemons starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-kishan-resourcemanager-kishan-VirtualBox.out localhost: ssh: connect to host localhost port 22: Connection refused