Restore Your Metric Insights Instance

The mi-app-restore tool will read a backup file generated by mi-app-backup and restore the machine to the state contained in the backup file.  To restore a backup file, there are many available options. The four common ones are:

  • Full restore
  • Restore when database resides on remote server
  • Restore with retained configuration files
  • Restore database only

PRE-REQUISITES:

  • You must have previously used mi-app-backup to Backup Your Metric Insights instance
  • The machine on which you run mi-app-restore needs to already have the MetricInsights application installed on it.
  • You will need root privileges to do the following commands. So either sign in as root, or do each command prefixed with "sudo".
  • The mi-app-restore will restore the database to the location configured in /opt/mi/config/insight.conf on the machine you run the restore. So before restoring on a machine, make sure its /opt/mi/config/insight.conf points to the location of the database to which you will restore.

1. Execute a full Restore process

To restore Metric Insights, including overwriting any configuration files you might have on the system on which the restore is executed, use the  mi-app-restore command:

mi-app-restore PATH_TO_BACKUP_FILE

2. Execute a Restore when the database resides on a remote server

If the application database resides on a remote server (i.e., not the Metric Insights application server), you can use the following command:

mi-app-restore -U admin_user -P admin_pass PATH_TO_BACKUP_FILE

...where admin_user and admin_pass are the admin credentials for the remote database server

3. Execute a Restore while retaining Configuration files

If you wish to keep your configuration files and only restore application state, you can use the following command:

mi-app-restore --no-config PATH_TO_BACKUP_FILE

4. Restore only the database

If you wish to only restore the database, you can use the following command:

mi-app-restore --include 'db' PATH_TO_BACKUP_FILE

5. Usage

To see all usage options:

mi-app-restore -h

 

usage: mi-app-restore [-h] [--dry-run] [--verbose] [--version] [--force]

                     [--no-config] [--db-user DB_USER] [--db-pass DB_PASS]

                     [--user USER] [--password PASSWORD] [--ssh-key SSH_KEY]

                     [--include TYPE] [--convert]

                     src_uri

Restore Metric Insights data from the given DEST_URI.

positional arguments:

 src_uri               Location of the backup file. This can point to a local file

                       or a remote scp/ftp/s3 backup.

optional arguments:

 -h, --help            show this help message and exit

 --dry-run, -n         Dry run. Print what would happen

 --verbose, -v         Be verbose. More v's, more verbose

 --version, -V         show program's version number and exit

 --force, -f           Don't ask for confirmation, just do the restore

 --no-config           Don't restore the config files in the backup

 --db-user DB_USER, -U DB_USER

                       The DB user to use when loading the MI database. Default: root

 --db-pass DB_PASS, -P DB_PASS

                       The DB password to use when loading the MI database

 --user USER, -u USER  Optional user for logging into remote host

 --password PASSWORD, -p PASSWORD

                       Optional password for logging into remote host

 --ssh-key SSH_KEY, -i SSH_KEY

                       ssh key file to use for remote server

 --include TYPE, -I TYPE

                       What to include from the backup. Choose from 'db', 'files', or 'full'. Default: full

 --convert, -c         Convert older backup data to be compatible with the newer installed version

 

6. Examples

Examples:

    mi-app-restore /some/dir/my_file.tar.gz

 

    mi-app-restore file:///some/dir/my_file.tar.gz

       restore MI from the given backup

 

    mi-app-restore ssh://machine.example.com/home/cru/backups/my_file.tar.gz

       read the backup from the remote machine machine.example.com. This will use the ~/.ssh/id_rsa

       ssh key by default if it exists. Use -i SSH_KEY to modify this.

 

    mi-app-restore -u <user> -p <pass> ftp://ftp.example.com/upload/backups/my_file.tar.gz

       backup from the file from ftp.example.com in the /upload/backups

       directory.

 

    mi-app-restore -u <user> -p <pass> rsync://machine.example.com/path/to/my_backup.tar.gz

 

    mi-app-restore -u <S3_ID> -p <S3_KEY> s3://my-bucket/dir/my_file.tar.gz

 

    mi-app-restore -u <S3_ID> -p <S3_KEY> s3://@my.s3.endpoint/my-bucket/dir/my_file.tar.gz

       read backup file from Amazon S3 bucket my-bucket. The @endpoint/bucket syntax

       will work for RIAK-CS and other s3-compatible cloud storage services.

 

6.1. Example: Restore Amazon EC2 instance with RDS

1. spin up new Amazon EC2

2. spin up new Amazon RDS

 

On new EC2 instance:

3. Move EC2 local db to RDS

mi-db-move <rds host> <rds db admin> <rds db password>

(This will also rename the dashboard db to the "hostname/ip address" of the machine.

Note, you must define the mysql parameters appropriately for the remote db server. Please see http://kb.metricinsights.com/m/44498/l/412310-fine-tuning-mysql-parameters for more information.)

4. Optional: Rename db on RDS to be the same as what is in the restore

mi-db-rename -d <dashboard db name> -D <old dashboard db name> -U <rds db admin> -P <rds db password>

5. Get the backup file to restore from

scp root@<old EC2 host>:/var/backups/mi-app-backups/<backup file name> /var/backups/mi-app-backups/

6. Do the restore (This will upgrade, then restore)

mi-app-restore -U <rds db admin> -P <rds db password> /var/backups/mi-app-backups/<backup file name>

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