oVirt version = 3.6.5 on CentOS 7.2

I have Data Warehouse and Reports database

Method 1:

In the Manager machine:

engine-backup --mode=backup --file=/home/cnscadmin/engine-3.6.bck --log=/home/cnscadmin/backup.log

less /home/cnscadmin/backup.log

2016-05-23 11:43:30 3585: Start of engine-backup mode backup scope all file /home/cnscadmin/engine-3.6.bck
2016-05-23 11:43:30 3585: OUTPUT: Backing up:
2016-05-23 11:43:30 3585: Generating pgpass
2016-05-23 11:43:30 3585: OUTPUT: Notifying engine
2016-05-23 11:43:30 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('files', now(), 0, 'Started', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:30 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('db', now(), 0, 'Started', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:30 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('dwhdb', now(), 0, 'Started', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:30 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('reportsdb', now(), 0, 'Started', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:30 3585: Creating temp folder /tmp/engine-backup.UwsBOUPMGT/tar
2016-05-23 11:43:30 3585: OUTPUT: - Files
2016-05-23 11:43:30 3585: Backing up files to /tmp/engine-backup.UwsBOUPMGT/tar/files
2016-05-23 11:43:30 3585: OUTPUT: - Engine database 'engine'
2016-05-23 11:43:30 3585: Backing up database to /tmp/engine-backup.UwsBOUPMGT/tar/db/engine_backup.db
2016-05-23 11:43:30 3585: pg_cmd running: pg_dump -w -U engine -h localhost -p 5432 engine -E UTF8 --disable-dollar-quoting --disable-triggers --format=custom
2016-05-23 11:43:31 3585: OUTPUT: - DWH database 'ovirt_engine_history'
2016-05-23 11:43:31 3585: Backing up dwh database to /tmp/engine-backup.UwsBOUPMGT/tar/db/dwh_backup.db
2016-05-23 11:43:31 3585: pg_cmd running: pg_dump -w -U ovirt_engine_history -h localhost -p 5432 ovirt_engine_history -E UTF8 --disable-dollar-quoting --disable-triggers --format=custom
2016-05-23 11:43:32 3585: OUTPUT: - Reports database 'ovirt_engine_reports'
2016-05-23 11:43:32 3585: Backing up reports database to /tmp/engine-backup.UwsBOUPMGT/tar/db/reports_backup.db
2016-05-23 11:43:32 3585: pg_cmd running: pg_dump -w -U ovirt_engine_reports -h localhost -p 5432 ovirt_engine_reports -E UTF8 --disable-dollar-quoting --disable-triggers --format=custom
2016-05-23 11:43:33 3585: Creating md5sum at /tmp/engine-backup.UwsBOUPMGT/tar/md5sum
2016-05-23 11:43:33 3585: OUTPUT: Packing into file '/home/cnscadmin/engine-3.6.bck'
2016-05-23 11:43:33 3585: Creating tarball /home/cnscadmin/engine-3.6.bck
2016-05-23 11:43:33 3585: OUTPUT: Notifying engine
2016-05-23 11:43:33 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('files', now(), 1, 'Finished', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:33 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('db', now(), 1, 'Finished', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:33 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('dwhdb', now(), 1, 'Finished', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:33 3585: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c SELECT LogEngineBackupEvent('reportsdb', now(), 1, 'Finished', 'ovirt1.cnsc.net', '/home/cnscadmin/backup.log');

2016-05-23 11:43:33 3585: OUTPUT: Done.

In the Restore Machine:

yum -y install postgresql postgresql-server postgresql-contrib

postgresql-setup initdb

systemctl enable postgresql.service

systemctl start postgresql.service

less /var/lib/pgsql/data/pg_hba.conf


host    engine          engine          0.0.0.0/0               md5
host    ovirt_engine_reports          ovirt_engine_reports          0.0.0.0/0               md5
host    ovirt_engine_history          ovirt_engine_history          0.0.0.0/0               md5


host    engine          engine          ::0/0                   md5
host    ovirt_engine_reports          ovirt_engine_reports          ::0/0                   md5
host    ovirt_engine_history          ovirt_engine_history          ::0/0                   md5

less /var/lib/pgsql/data/postgresql.conf

listen_addresses = '*'                  # what IP address(es) to listen on;


firewall-cmd --permanent --add-service=postgresql

firewall-cmd --reload

engine-backup --mode=restore --file=/home/cnscadmin/engine-3.6.bck --log=/home/cnscadmin/restore.log --provision-db --no-restore-permissions

less /home/cnscadmin/restore.log

2016-05-23 11:49:08 2970: Start of engine-backup mode restore scope all file /home/cnscadmin/engine-3.6.bck
2016-05-23 11:49:08 2970: OUTPUT: Preparing to restore:
2016-05-23 11:49:08 2970: OUTPUT: - Unpacking file '/home/cnscadmin/engine-3.6.bck'
2016-05-23 11:49:08 2970: Opening tarball /home/cnscadmin/engine-3.6.bck to /tmp/engine-backup.gUyOwLF4yI
2016-05-23 11:49:08 2970: Verifying md5
2016-05-23 11:49:08 2970: Verifying version
2016-05-23 11:49:08 2970: Reading config
2016-05-23 11:49:08 2970: OUTPUT: Restoring:
2016-05-23 11:49:08 2970: OUTPUT: - Files
2016-05-23 11:49:08 2970: Restoring files
2016-05-23 11:49:08 2970: Reloading configuration
2016-05-23 11:49:08 2970: OUTPUT: Provisioning PostgreSQL users/databases:
2016-05-23 11:49:08 2970: provisionDB: user engine host localhost port 5432 database engine secured False secured_host_validation False
2016-05-23 11:49:08 2970: OUTPUT: - user 'engine', database 'engine'
[ INFO ] Stage: Initializing
[ INFO ] Stage: Environment setup
          Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging-reports-jboss.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging.conf', '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf', '/tmp/engine-backup.gUyOwLF4yI/pg-provision-answer-file']
          Log file: /var/log/ovirt-engine/setup/ovirt-engine-provisiondb-20160523114908-ane5uv.log
          Version: otopi-1.4.1 (otopi-1.4.1-1.el7.centos)
[ INFO ] Stage: Environment packages setup
[ INFO ] Stage: Programs detection
[ INFO ] Stage: Environment customization
[ INFO ] Stage: Setup validation
[ INFO ] Stage: Transaction setup
[ INFO ] Stage: Misc configuration
[ INFO ] Stage: Package installation
[ INFO ] Stage: Misc configuration
[ INFO ] Creating PostgreSQL 'engine' database
[ INFO ] Configuring PostgreSQL
[ INFO ] Stage: Transaction commit
[ INFO ] Stage: Closing up
[ INFO ] Stage: Clean up
          Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-provisiondb-20160523114908-ane5uv.log
[ INFO ] Stage: Pre-termination
[ INFO ] Stage: Termination
[ INFO ] Execution of provisiondb completed successfully
2016-05-23 11:49:12 2970: OUTPUT: Restoring:
2016-05-23 11:49:12 2970: Generating pgpass
2016-05-23 11:49:12 2970: Verifying connection
2016-05-23 11:49:12 2970: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -c select 1
?column?
----------
        1
(1 row)

2016-05-23 11:49:12 2970: pg_cmd running: psql -w -U engine -h localhost -p 5432 engine -t -c show lc_messages
2016-05-23 11:49:12 2970: pg_cmd running: pg_dump -w -U engine -h localhost -p 5432 engine -s
2016-05-23 11:49:12 2970: pg_cmd running: psql -w -U ovirt_engine_history -h localhost -p 5432 ovirt_engine_history -c select 1
psql: FATAL: Ident authentication failed for user "ovirt_engine_history"
2016-05-23 11:49:12 2970: FATAL: Can't connect to database 'ovirt_engine_history'. Please see '/bin/engine-backup --help'.

Method 2:

In the Manager machine:

engine-backup --mode=backup --scope=all --file=/home/cnscadmin/engine-3.6.tar.bz2 --log=/home/cnscadmin/backup.log

In The Restore Machine

engine-backup --mode=restore --file=/home/cnscadmin/engine-3.6.tar.bz2 --log=/home/cnscadmin/restore.log --change-db-credentials --db-host=192.168.x.y --db-name=engine --db-user=engine --db-password=MyPassword

Output:

Preparing to restore:
- Setting credentials for Engine database 'engine'
FATAL: Can't connect to database 'engine'. Please see '/bin/engine-backup --help'.

less /home/cnscadmin/restore.log :

2016-05-23 13:47:36 2973: Start of engine-backup mode restore scope all file /home/cnscadmin/engine-3.6.tar.bz2
2016-05-23 13:47:36 2973: OUTPUT: Preparing to restore:
2016-05-23 13:47:36 2973: OUTPUT: - Setting credentials for Engine database 'engine'
2016-05-23 13:47:36 2973: pg_cmd running: psql -w -U engine -h 192.168.x.y -p 5432 engine -c select 1
psql: FATAL: password authentication failed for user "engine"
password retrieved from file "/tmp/engine-backup.dWpTSHqQxq/.pgpass"
2016-05-23 13:47:36 2973: FATAL: Can't connect to database 'engine'. Please see '/bin/engine-backup --help'.