mydumper
Usage:
mydumper [OPTION…] multi-threaded MySQL dumping
Help Options:
-?, –help Show help options
Application Options:
-B, –database 需要备份的数据库，一个数据库一条命令备份，要不就是备份所有数据库，包括mysql。
-T, –tables-list 需要备份的表，用逗号分隔。
-o, –outputdir 备份文件目录
-s, –statement-size 生成插入语句的字节数，默认1000000，这个参数不能太小，不然会报 Row bigger than statement_size for tools.t_serverinfo
-r, –rows 试图用行块来分割表，该参数关闭–chunk-filesize
-F, –chunk-filesize 行块分割表的文件大小，单位是MB
-c, –compress 压缩输出文件
-e, –build-empty-files 即使表没有数据，也产生一个空文件
-x, –regex 正则表达式匹配，如’db.table’
-i, –ignore-engines 忽略的存储引擎，用逗号分隔
-m, –no-schemas 不导出表结构
-d, –no-data 不导出表数据
-G, –triggers 导出触发器
-E, –events 导出事件
-R, –routines 导出存储过程
-k, –no-locks 不执行共享读锁 警告：这将导致不一致的备份
–less-locking 减到最小的锁在innodb表上.
-l, –long-query-guard 设置长查询时间,默认60秒，超过该时间则会报错：There are queries in PROCESSLIST running longer than 60s, aborting dump
-K, –kill-long-queries kill掉长时间执行的查询，备份报错：Lock wait timeout exceeded; try restarting transaction
-D, –daemon 启用守护进程模式
-I, –snapshot-interval dump快照间隔时间，默认60s，需要在daemon模式下
-L, –logfile 使用日志文件，默认标准输出到终端
–tz-utc 备份的时候允许备份Timestamp，这样会导致不同时区的备份还原会出问题，默认关闭，参数：–skip-tz-utc to disable.
–skip-tz-utc
–use-savepoints 使用savepoints来减少采集metadata所造成的锁时间，需要SUPER权限
–success-on-1146 Not increment error count and Warning instead of Critical in case of table doesn’t exist
–lock-all-tables 锁全表，代替FLUSH TABLE WITH READ LOCK
-U, –updated-since Use Update_time to dump only tables updated in the last U days
–trx-consistency-only Transactional consistency only
-h, –host The host to connect to
-u, –user Username with privileges to run the dump
-p, –password User password
-P, –port TCP/IP port to connect to
-S, –socket UNIX domain socket file to use for connection
-t, –threads 备份执行的线程数,默认4个线程
-C, –compress-protocol 在mysql连接上使用压缩协议
-V, –version Show the program version and exit
-v, –verbose 更多输出, 0 = silent, 1 = errors, 2 = warnings, 3 = info, default 2
myloader
Usage:
myloader [OPTION…] multi-threaded MySQL loader
Help Options:
-?, –help Show help options
Application Options:
-d, –directory 备份文件所在的目录
-q, –queries-per-transaction 每个事务的query数量, 默认1000
-o, –overwrite-tables 如果表存在则先删除，使用该参数，需要备份时候要备份表结构，不然还原会找不到表
-B, –database 指定需要还原的数据库
-s, –source-db 还原的数据库
-e, –enable-binlog 启用二进制日志恢复数据
-h, –host The host to connect to
-u, –user Username with privileges to run the dump
-p, –password User password
-P, –port TCP/IP port to connect to
-S, –socket UNIX domain socket file to use for connection
-t, –threads 使用的线程数量，默认4
-C, –compress-protocol 连接上使用压缩协议
-V, –version Show the program version and exit
-v, –verbose 更多输出, 0 = silent, 1 = errors, 2 = warnings, 3 = info, default 2
