Restore Ranger Admin Database
You must restore the Ranger Admin database for MySQL and PostgreSQL.
You must stop Ranger Admin and KMS service if they are running. Restore Ranger admin databases.
MySQL
Perform the following steps to restore a database.
- Delete the existing Database.
- Create an empty new database on the database host.
- Restore the database using below msyql
command.
mysql -u root drop database ranger; create database ranger; GRANT ALL PRIVILEGES ON ranger.* TO 'rangeradmin'@'localhost'; $ mysql -u [username] -p existing_empty_db_name < dump_fileName.sql
mysql -u rangeradmin -p rangeradmin < /root/backups/ranger/db/admin/ranger.sql
Press the Enter key. Type the database password when the password prompts.
POSTGRES
Perform the following steps to restore a database.
- Delete an existing Database.
- Create an empty new database in its place.
- Run the below command on postgres db
host.
dropdb -U owner_username dbname; [Enter db owner password at the prompt]
Example
dropdb -U rangeradmin ranger;
su - postgres psql create database ranger; ALTER DATABASE ranger OWNER TO rangeradmin; \q exit psql -U rangeradmin ranger < /root/backups/ranger/db/admin/ranger.sql
Press the Enter key. Type the database password when the password prompts.
OracleSet the path to Oracle home if required :
export ORACLE_HOME=/opt/oracle/product/12.2.0 export PATH=${PATH}:${ORACLE_HOME}/bin export ORACLE_SID=orcl12c
Restore ranger admin database.rm -rf del_admin_tbl_cmd.sql sqlplus -s rangeradmin/rangeradmin << EOF spool on spool del_admin_tbl_cmd.sql SELECT 'DROP TABLE "' || TABLE_NAME || '" CASCADE CONSTRAINTS;' FROM user_tables union ALL select 'drop '||object_type||' '|| object_name || ';' from user_objects where object_type in ('VIEW','PACKAGE','SEQUENCE', 'PROCEDURE', 'FUNCTION') union ALL SELECT 'drop ' ||object_type ||' ' || object_name || ' force;' FROM user_objects WHERE object_type IN ('TYPE'); spool off @del_admin_tbl_cmd.sql exit; EOF
Type the database password when the password prompts and then run the following command:imp rangeradmin/rangeradmin file=backups/ranger/db/admin/orcl12c.sql log=backups/ranger/db/admin/restore.log