环境说明：
主库:192.168.0.1
从库1:192.168.0.2
从库2:192.168.0.3
备份工具 : Percona xtrabackup version 2.4.8 based on MySQL server 5.7.13 Linux (x86_64) (revision id: 97330f7)
在主库上创建chenfeng库:
mysql> create database chenfeng;
Query OK, 1 row affected (0.08 sec)
mysql> use chenfeng
Database changed
mysql> create table duansf(id int (11),name varchar(10));
Query OK, 0 rows affected (0.14 sec)
mysql> insert into duansf values(1,'duansf');
Query OK, 1 row affected (0.01 sec)
mysql> insert into duansf values(2,'duansf');
Query OK, 1 row affected (0.01 sec)
只备份chenfeng库的duansf表:
[root@localhost backup]# innobackupex --defaults-file=/etc/my.cnf --user=root --password=dsf0723 -S /tmp/mysql.sock --slave-info --safe-slave-backup --include=chenfeng.duansf /data/backup
171015 20:33:07 innobackupex: Starting the backup operation
IMPORTANT: Please check that the backup run completes successfully.
At the end of a successful backup run innobackupex
prints "completed OK!".
171015 20:33:08 version_check Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_group=xtrabackup;mysql_socket=/tmp/mysql.sock' as 'root' (using password: YES).
171015 20:33:08 version_check Connected to MySQL server
171015 20:33:08 version_check Executing a version check against the server...
171015 20:33:08 version_check Done.
171015 20:33:08 Connecting to MySQL server host: localhost, user: root, password: set, port: not set, socket: /tmp/mysql.sock
Using server version 5.7.18-log
innobackupex version 2.4.8 based on MySQL server 5.7.13 Linux (x86_64) (revision id: 97330f7)
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /usr/local/mysql/data
xtrabackup: open files limit requested 0, set to 1024
xtrabackup: using the following InnoDB configuration:
xtrabackup: innodb_data_home_dir = .
xtrabackup: innodb_data_file_path = ibdata1:12M:autoextend
xtrabackup: innodb_log_group_home_dir = ./
xtrabackup: innodb_log_files_in_group = 2
xtrabackup: innodb_log_file_size = 50331648
InnoDB: Number of pools: 1
171015 20:33:08 >> log scanned up to (233975916)
xtrabackup: Generating a list of tablespaces
InnoDB: Allocated tablespace ID 79 for chenfeng/duansf, old maximum was 0
171015 20:33:09 [01] Copying ./ibdata1 to /data/backup/2017-10-15_20-33-07/ibdata1
171015 20:33:09 [01] ...done
171015 20:33:09 [01] Copying ./chenfeng/duansf.ibd to /data/backup/2017-10-15_20-33-07/chenfeng/duansf.ibd
171015 20:33:09 [01] ...done
171015 20:33:09 >> log scanned up to (233975916)
171015 20:33:10 Slave open temp tables: 0
171015 20:33:10 Slave is safe to backup
171015 20:33:10 Executing FLUSH NO_WRITE_TO_BINLOG TABLES...
171015 20:33:10 Executing FLUSH TABLES WITH READ LOCK...
171015 20:33:10 Starting to backup non-InnoDB tables and files
171015 20:33:10 [01] Skipping ./ibdata1.
171015 20:33:10 [01] Skipping ./ib_logfile1.
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171015 20:33:10 [01] Skipping ./sys/metrics.frm.
171015 20:33:10 [01] Skipping ./sys/memory_global_total.frm.
171015 20:33:10 [01] Skipping ./sys/host_summary_by_stages.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024memory_global_total.frm.
171015 20:33:10 [01] Skipping ./sys/session.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024schema_table_statistics_with_buffer.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024statements_with_errors_or_warnings.frm.
171015 20:33:10 [01] Skipping ./sys/schema_tables_with_full_table_scans.frm.
171015 20:33:10 [01] Skipping ./sys/schema_unused_indexes.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024schema_tables_with_full_table_scans.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024host_summary_by_stages.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024statements_with_full_table_scans.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024ps_digest_avg_latency_distribution.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024ps_digest_95th_percentile_by_avg_us.frm.
171015 20:33:10 [01] Skipping ./sys/statements_with_runtimes_in_95th_percentile.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024statements_with_runtimes_in_95th_percentile.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024statements_with_temp_tables.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024user_summary_by_file_io_type.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024user_summary_by_statement_type.frm.
171015 20:33:10 [01] Skipping ./sys/user_summary_by_statement_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024user_summary_by_statement_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024host_summary_by_file_io_type.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024host_summary_by_statement_type.frm.
171015 20:33:10 [01] Skipping ./sys/host_summary_by_statement_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024host_summary_by_statement_latency.frm.
171015 20:33:10 [01] Skipping ./sys/wait_classes_global_by_avg_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024wait_classes_global_by_avg_latency.frm.
171015 20:33:10 [01] Skipping ./sys/wait_classes_global_by_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024wait_classes_global_by_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024waits_by_user_by_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024waits_by_host_by_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024waits_global_by_latency.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024processlist.frm.
171015 20:33:10 [01] Skipping ./sys/x@0024session.frm.
171015 20:33:10 [01] Skipping ./sys/session_ssl_status.frm.
171015 20:33:10 [01] Skipping ./.rnd.
171015 20:33:10 [01] Skipping ./ca-key.pem.
171015 20:33:10 [01] Skipping ./ca-req.pem.
171015 20:33:10 [01] Skipping ./ca.pem.
171015 20:33:10 [01] Skipping ./server-key.pem.
171015 20:33:10 [01] Skipping ./server-req.pem.
171015 20:33:10 [01] Skipping ./server-cert.pem.
171015 20:33:10 [01] Skipping ./client-key.pem.
171015 20:33:10 [01] Skipping ./client-req.pem.
171015 20:33:10 [01] Skipping ./client-cert.pem.
171015 20:33:10 [01] Skipping ./mysql-bin.000004.
171015 20:33:10 [01] Skipping ./mysql-bin.000006.
171015 20:33:10 [01] Skipping ./mysql-bin.000007.
171015 20:33:10 [01] Skipping ./localhost-relay-bin.000018.
171015 20:33:10 [01] Skipping ./localhost-relay-bin.index.
171015 20:33:10 [01] Skipping ./mysql-bin.000001.
171015 20:33:10 [01] Skipping ./test/db.opt.
171015 20:33:10 [01] Skipping ./test/test.frm.
171015 20:33:10 [01] Skipping ./test/test.ibd.
171015 20:33:10 [01] Skipping ./test/chenfeng.frm.
171015 20:33:10 [01] Skipping ./test/chenfeng.ibd.
171015 20:33:10 [01] Skipping ./test/dsf.frm.
171015 20:33:10 [01] Skipping ./test/dsf.ibd.
171015 20:33:10 [01] Skipping ./ibtmp1.
171015 20:33:10 [01] Skipping ./mysql-bin.000008.
171015 20:33:10 [01] Skipping ./localhost.localdomain.pid.
171015 20:33:10 [01] Skipping ./localhost-relay-bin.000017.
171015 20:33:10 [01] Skipping ./mysql-bin.000002.
171015 20:33:10 [01] Skipping ./auto.cnf.
171015 20:33:10 [01] Skipping ./master.info.
171015 20:33:10 [01] Skipping ./relay-log.info.
171015 20:33:10 [01] Skipping ./mysql-bin.000003.
171015 20:33:10 [01] Skipping ./mysql-bin.000005.
171015 20:33:10 [01] Skipping ./chenfeng/db.opt.
171015 20:33:10 [01] Copying ./chenfeng/duansf.frm to /data/backup/2017-10-15_20-33-07/chenfeng/duansf.frm
171015 20:33:10 [01] ...done
171015 20:33:10 [01] Skipping ./ib_buffer_pool.
171015 20:33:10 [01] Skipping ./mysql-bin.index.
171015 20:33:10 Finished backing up non-InnoDB tables and files
171015 20:33:10 [00] Writing /data/backup/2017-10-15_20-33-07/xtrabackup_slave_info
171015 20:33:10 [00] ...done
171015 20:33:10 [00] Writing /data/backup/2017-10-15_20-33-07/xtrabackup_binlog_info
171015 20:33:10 [00] ...done
171015 20:33:10 Executing FLUSH NO_WRITE_TO_BINLOG ENGINE LOGS...
xtrabackup: The latest check point (for incremental): '233975907'
xtrabackup: Stopping log copying thread.
.171015 20:33:10 >> log scanned up to (233975916)