YARN
Before starting the rollback procedure, make sure that HDFS and Zookeeper are rolled back.
- Log in to the TIMELINE SERVICE V2.0 READER host.
- Setup Kerberos Credentials in case of secured cluster. Locate the yarn-ats-hbase’s
keytab and use kinit to cache the kerberos ticket.
- kinit -kt path/to/yarn-ats.hbase-master.keytab yarn-ats-hbase/hostname@domain.
- export JVMFLAGS="-Djava.security.auth.login.config=/etc/hadoop/conf/embedded-yarn-ats-hbase/yarn_hbase_master_jaas.conf"
- Delete the atsv2-hbase-secure znode in the Zookeeper zookeeper-client -server ${zk_server_url} rmr /atsv2-hbase-secure.