Skip to main content

MEB - MySQL Enterprise Backup

MEB - MySQL Enterprise Backup:
Backup using backup command:
#/bin/mysqlbackup \
--user=<id> \
--password=<code> \
--socket=/mysql/mysql.sock \
--backup-dir=/mysql/mysql-backup-dir-`date +'%F_%H-%M-%S'` backup

it will create directory
/mysql/mysql-backup-dir-`date +'%F_%H-%M-%S'` --> backup the database in directory /datadir which resides inside the /mysql/mysql-backup-dir....
Backup and apply log:
Add following connection id, code, and socket in /etc/my.cnf file
[mysqlbackup]
host=localhost
user=<id>
password=<code>
socket=/mysql/mysql.sock

#/bin/mysqlbackup \
--backup-dir=/mysql/mysql-backup-dir-`date +'%F_%H-%M-%S'` backup-and-apply-log

Command will create directory /mysql/mysql-backup-dir... --> backup the database --> Restore database in datadir which is inside /mysql/mysql-backup-dir
Note: Backups created with the --skip-unused-pages option cannot be restored using copy-back-and-apply-log.
Ref. https://dev.mysql.com/doc/mysql-enterprise-backup/8.0/en/backup-commands-restore.html
Backup to image - backup in one file with compression:
#/bin/mysqlbackup \
--backup-dir=/tmp/tmp-backup-dir-`date +'%F_%H-%M-%S'` \
--backup-image=/mysql/backup/`hostname`.<db_name>.mbi_$(date '+%d%b_%H%M%S') backup-to-image --compress

Backup to image - backup in one file :
#/bin/mysqlbackup \
--backup-dir=/tmp/backup-dir-`date +'%F_%H-%M-%S'` \
--backup-image=/mysql/bakcup/`hostname`.<db_name>.mbi_$(date '+%d%b_%H%M') backup-to-image
Backup to image - backup in one file date format different :
#/bin/mysqlbackup \
--backup-dir=/tmp/mts-backup-`date +'%F_%H:%M:%S'` \
--backup-image=/mysql/backup/`hostname`.<db_name>.mbi_$( date +'%F_%H:%M:%S') backup-to-image
Restore:

01. Stop mysql daemon - #systemctl stop mysqld
02. Rename existing datadir
03. Create new datadir with same name
04. Execute following command to restore datadir from image backup
05. Make sure to check datadir and files are owned by user - mysql, if not execute
#chown -R mysql:mysql /<datadir_name>
#/bin/mysqlbackup \
--backup-dir=/mysql/restore \
--backup-image=/mysql/backup/<backup.image_file_name> \
 copy-back-and-apply-log

#### Backup Incremental

/bin/mysqlbackup \
--incremental --incremental-base=history:last_backup \
--backup-dir=/tmp/mts-backup-`date +'%F_%H:%M:%S'` \
--backup-image=/mysql/backup/`hostname`.mts.incremental_image1.bi_$(date '+%d%b_%H%M%S') backup-to-image --compress


Note: backup-dir has to be empty, and datadir has to be empty to restore the database.

Labels:
Location: San Francisco, CA, USA

Comments

Post a Comment

Popular posts from this blog

MySQL InnoDB cluster troubleshooting | commands

Cluster Validation: select * from performance_schema.replication_group_members; All members should be online. select instance_name, mysql_server_uuid, addresses from  mysql_innodb_cluster_metadata.instances; All instances should return same value for mysql_server_uuid SELECT @@GTID_EXECUTED; All nodes should return same value Frequently use commands: mysql> SET SQL_LOG_BIN = 0;  mysql> stop group_replication; mysql> set global super_read_only=0; mysql> drop database mysql_innodb_cluster_metadata; mysql> RESET MASTER; mysql> RESET SLAVE ALL; JS > var cluster = dba.getCluster() JS > var cluster = dba.getCluster("<Cluster_name>") JS > var cluster = dba.createCluster('name') JS > cluster.removeInstance('root@<IP_Address>:<Port_No>',{force: true}) JS > cluster.addInstance('root@<IP add>,:<port>') JS > cluster.addInstance('root@ <IP add>,:<port> ') JS > dba.getC...
Post a Comment
Read more

MySQL slave Error_code: 1032 | MySQL slave drift | HA_ERR_KEY_NOT_FOUND

MySQL slave Error_code: 1032 | MySQL slave drift: With several MySQL, instance with master slave replication, I have one analytics MySQL, environment which is larger in terabytes, compared to other MySQL instances in the environment. Other MySQL instances with terabytes of data are running fine master, slave replication. But this analytics environment get started generating slave Error_code :1032. mysql> show slave status; Near relay log: Error_code: 1032; Can't find record in '<table_name>', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log <name>-bin.000047, end_log_pos 5255306 Near master section: Could not execute Update_rows event on table <db_name>.<table_name>; Can't find record in '<table_name>', Error_code: 1032; Can't find record in '<table_name>', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log <name>-bin.000047, end_l...
2 comments
Read more

InnoDB cluster Remove Instance Force | Add InnoDB instance

InnoDB cluster environment UUID is different on node: To fix it stop group replication, remove instance (use force if require), add instance back Identify the node which is not in sync: Execute following SQL statement on each node and identify the node has different UUID on all nodes. mysql> select * from mysql_innodb_cluster_metadata.instances; Stop group replication: Stop group replication on the node which does not have same UUID on all nodes. mysql > stop GROUP_REPLICATION; Remove instances from cluster: Remove all secondary node from the cluster and add them back if require. $mysqlsh JS >\c root@<IP_Address>:<Port_No> JS > dba.getCluster().status() JS > dba.getCluster () <Cluster:cluster_name> JS > var cluster = dba.getCluster("cluster_name"); JS >  cluster.removeInstance('root@<IP_Address>:<Port_No>'); If you get "Cluster.removeInstance: Timeout reached waiting......" JS > cluster.removeInstance(...
2 comments
Read more