MYDUMPER(1)							     mydumper							       MYDUMPER(1)

NAME

       mydumper - multi-threaded MySQL dumping

SYNOPSIS

       mydumper [OPTIONS]

DESCRIPTION

       mydumper  is a tool used for backing up MySQL database servers much faster than the mysqldump tool distributed with MySQL.  It also has the
       capability to retrieve the binary logs from the remote server at the same time as the dump itself.  The advantages of mydumper are:

	  o Parallelism (hence, speed) and performance (avoids expensive character set conversion routines, efficient code overall)

	  o Easier to manage output (separate files for tables, dump metadata, etc, easy to view/parse data)

	  o Consistency - maintains snapshot across all threads, provides accurate master and slave log positions, etc

	  o Manageability - supports PCRE for specifying database and tables inclusions and exclusions

OPTIONS

       The mydumper tool has several available options:

       --help Show help text

       --host, -h
	      Hostname of MySQL server to connect to (default localhost)

       --user, -u
	      MySQL username with the correct privileges to execute the dump

       --password, -p
	      The corresponding password for the MySQL user

       --port, -P
	      The port for the MySQL connection.

       Note   For localhost TCP connections use 127.0.0.1 for --host.

       --socket, -S
	      The UNIX domain socket file to use for the connection

       --database, -B
	      Database to dump

       --table-list, -T
	      A comma separated list of tables to dump

       --threads, -t
	      The number of threads to use for dumping data, default is 4

       Note   Other threads are used in mydumper, this option does not control these

       --outputdir, -o
	      Output directory name, default is export-YYYYMMDD-HHMMSS

       --statement-size, -s
	      The maximum size for an insert statement before breaking into a new statement, default 1,000,000 bytes

       --rows, -r
	      Split table into chunks of this many rows, default unlimited

       --compress, -c
	      Compress the output files

       --compress-input, -C
	      Use client protocol compression for connections to the MySQL server

       --build-empty-files, -e
	      Create empty dump files if there is no data to dump

       --regex, -x
	      A regular expression to match against database and table

       --ignore-engines, -i
	      Comma separated list of storage engines to ignore

       --no-schemas, -m
	      Do not dump schemas with the data

       --long-query-guard, -l
	      Timeout for long query execution in seconds, default 60

       --kill-long-queries, -k
	      Kill long running queries instead of aborting the dump

       --version, -V
	      Show the program version and exit

       --verbose, -v
	      The verbosity of messages.  0 = silent, 1 = errors, 2 = warnings, 3 = info.  Default is 2.

       --binlogs, -b
	      Get the binlogs from the server as well as the dump files

       --daemon, -D
	      Enable daemon mode

       --snapshot-interval, -I
	      Interval between each dump snapshot (in minutes), requires --daemon, default 60 (minutes)

       --logfile, -L
	      A file to log mydumper output to instead of console output.  Useful for daemon mode.

       --no-locks, -k
	      Do not execute the temporary shared read lock.

       Warning
	      This will cause inconsistent backups.

AUTHOR

       Andrew Hutchings

COPYRIGHT

       2011, Andrew Hutchings

0.5.1								   June 09, 2012						       MYDUMPER(1)