apt搜索一下
$ sudo apt search mydumper [sudo] password for zhaoyao: Sorting... Done Full Text Search... Done mydumper/focal,now 0.9.5-1.1 amd64 High-performance MySQL backup tool mydumper-doc/focal,focal 0.9.5-1.1 all High-performance MySQL backup tool - documentation
然後安裝一下
sudo apt-get install mydumper
使用說明
$ mydumper --help Usage: mydumper [OPTION?] multi-threaded MySQL dumping Help Options: -?, --help Show help options Application Options: -B, --database Database to dump -T, --tables-list Comma delimited table list to dump (does not exclude regex option) -O, --omit-from-file File containing a list of database.table entries to skip, one per line (skips before applying regex option) -o, --outputdir Directory to output files to -s, --statement-size Attempted size of INSERT statement in bytes, default 1000000 -r, --rows Try to split tables into chunks of this many rows. This option turns off --chunk-filesize -F, --chunk-filesize Split tables into chunks of this output file size. This value is in MB -c, --compress Compress output files -e, --build-empty-files Build dump files even if no data available from table -x, --regex Regular expression for 'db.table' matching -i, --ignore-engines Comma delimited list of storage engines to ignore -N, --insert-ignore Dump rows with INSERT IGNORE -m, --no-schemas Do not dump table schemas with the data -d, --no-data Do not dump table data -G, --triggers Dump triggers -E, --events Dump events -R, --routines Dump stored procedures and functions -W, --no-views Do not dump VIEWs -k, --no-locks Do not execute the temporary shared read lock. WARNING: This will cause inconsistent backups --no-backup-locks Do not use Percona backup locks --less-locking Minimize locking time on InnoDB tables. -l, --long-query-guard Set long query timer in seconds, default 60 -K, --kill-long-queries Kill long running queries (instead of aborting) -D, --daemon Enable daemon mode -I, --snapshot-interval Interval between each dump snapshot (in minutes), requires --daemon, default 60 -L, --logfile Log file name to use, by default stdout is used --tz-utc SET TIME_ZONE='+00:00' at top of dump to allow dumping of TIMESTAMP data when a server has data in different time zones or data is being moved between servers with different time zones, defaults to on use --skip-tz-utc to disable. --skip-tz-utc --use-savepoints Use savepoints to reduce metadata locking issues, needs SUPER privilege --success-on-1146 Not increment error count and Warning instead of Critical in case of table doesn't exist --lock-all-tables Use LOCK TABLE for all, instead of FTWRL -U, --updated-since Use Update_time to dump only tables updated in the last U days --trx-consistency-only Transactional consistency only --complete-insert Use complete INSERT statements that include column names -h, --host The host to connect to -u, --user Username with the necessary privileges -p, --password User password -a, --ask-password Prompt For User password -P, --port TCP/IP port to connect to -S, --socket UNIX domain socket file to use for connection -t, --threads Number of threads to use, default 4 -C, --compress-protocol Use compression on the MySQL connection -V, --version Show the program version and exit -v, --verbose Verbosity of output, 0 = silent, 1 = errors, 2 = warnings, 3 = info, default 2 --defaults-file Use a specific defaults file
測試一下
mydumper -u root -p 數據庫密碼 -h 127.0.0.1 -B test -o ~/script/mysql/
然後就有了這些文件
ll ~/script/mysql/*.sql
文件有了，一張表一個文件
相比原來 mysqldump 來說這個會稍微快些。(文件越大數據越多越明顯)
以往mysqldump的使用方式
mysqldump -uroot -p test > ~/script/mysql/test.db
回車後需要輸入密碼，然後就會自動導出到這個test.db文件裏。