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82 lines
3.7 KiB
Groff
82 lines
3.7 KiB
Groff
.TH MYROCKS_HOTBACKUP "1" "March 2020" "MariaDB 10\&.5" "MariaDB Database System"
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.SH NAME
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myrocks_hotbackup \- streaming backup for MariaDB MyRocks
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.SH DESCRIPTION
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Usage:
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.PP
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Backup: set \fB\-o\fR pipefail; myrocks_hotbackup \fB\-\-user\fR=\fI\,root\/\fR \fB\-\-password\fR=\fI\,pw\/\fR \fB\-\-port\fR=\fI\,3306\/\fR \fB\-\-checkpoint_dir=\fR<directory where temporary backup hard links are created> | ssh \fB\-o\fR NoneEnabled=yes remote_server 'tar \fB\-xi\fR \fB\-C\fR <directory on remote server where backups will be sent>' . You need to execute backup command on a server where you take backups.
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.PP
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Backup using WDT: myrocks_hotbackup \fB\-\-user\fR=\fI\,root\/\fR \fB\-\-password\fR=\fI\,pw\/\fR \fB\-\-stream\fR=\fI\,wdt\/\fR \fB\-\-checkpoint_dir=\fR<directory where temporary backup hard links are created> \fB\-\-destination=\fR<remote host name> \fB\-\-backup_dir=\fR<remote directory name>. This has to be executed at the src host.
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.PP
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Move\-Back: myrocks_hotbackup \fB\-\-move_back\fR \fB\-\-datadir=\fR<dest mysql datadir> \fB\-\-rocksdb_datadir=\fR<dest rocksdb datadir> \fB\-\-rocksdb_waldir=\fR<dest rocksdb wal dir> \fB\-\-backup_dir=\fR<where backup files are stored> . You need to execute move\-back command on a server where backup files are sent.
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.SH OPTIONS
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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show this help message and exit
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.TP
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\fB\-i\fR CHECKPOINT_INTERVAL, \fB\-\-interval\fR=\fI\,CHECKPOINT_INTERVAL\/\fR
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Number of seconds to renew checkpoint
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.TP
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\fB\-c\fR CHECKPOINT_DIRECTORY, \fB\-\-checkpoint_dir\fR=\fI\,CHECKPOINT_DIRECTORY\/\fR
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Local directory name where checkpoints will be
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created.
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.TP
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\fB\-d\fR DATADIR, \fB\-\-datadir\fR=\fI\,DATADIR\/\fR
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backup mode: src MySQL datadir. move_back mode: dest
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MySQL datadir
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.TP
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\fB\-s\fR OUTPUT_STREAM, \fB\-\-stream\fR=\fI\,OUTPUT_STREAM\/\fR
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Setting streaming backup options. Currently tar, WDT
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and xbstream are supported. Default is tar
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.TP
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\fB\-\-destination\fR=\fI\,DESTINATION\/\fR
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Remote server name. Only used for WDT mode so far.
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.TP
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\fB\-\-avg_mbytes_per_sec\fR=\fI\,AVG_MBYTES_PER_SEC\/\fR
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Average backup rate in MBytes/sec. WDT only.
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.TP
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\fB\-\-extra_wdt_sender_options\fR=\fI\,EXTRA_WDT_SENDER_OPTIONS\/\fR
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Extra options for WDT sender
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.TP
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\fB\-\-extra_wdt_receiver_options\fR=\fI\,EXTRA_WDT_RECEIVER_OPTIONS\/\fR
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Extra options for WDT receiver
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.TP
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\fB\-u\fR MYSQL_USER, \fB\-\-user\fR=\fI\,MYSQL_USER\/\fR
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MySQL user name
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.TP
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\fB\-p\fR MYSQL_PASSWORD, \fB\-\-password\fR=\fI\,MYSQL_PASSWORD\/\fR
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MySQL password name
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.TP
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\fB\-P\fR MYSQL_PORT, \fB\-\-port\fR=\fI\,MYSQL_PORT\/\fR
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MySQL port number
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.TP
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\fB\-S\fR MYSQL_SOCKET, \fB\-\-socket\fR=\fI\,MYSQL_SOCKET\/\fR
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MySQL socket path. Takes precedence over \fB\-\-port\fR.
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.TP
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\fB\-m\fR, \fB\-\-move_back\fR
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Moving MyRocks backup files to proper locations.
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.TP
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\fB\-r\fR ROCKSDB_DATADIR, \fB\-\-rocksdb_datadir\fR=\fI\,ROCKSDB_DATADIR\/\fR
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RocksDB target data directory where backup data files
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will be moved. Must be empty.
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.TP
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\fB\-w\fR ROCKSDB_WALDIR, \fB\-\-rocksdb_waldir\fR=\fI\,ROCKSDB_WALDIR\/\fR
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RocksDB target data directory where backup wal files
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will be moved. Must be empty.
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.TP
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\fB\-b\fR BACKUPDIR, \fB\-\-backup_dir\fR=\fI\,BACKUPDIR\/\fR
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backup mode for WDT: Remote directory to store backup.
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move_back mode: Locations where backup files are
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stored.
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.TP
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\fB\-f\fR, \fB\-\-skip_check_frm_timestamp\fR
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skipping to check if frm files are updated after
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starting backup.
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.TP
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\fB\-D\fR DEBUG_SIGNAL_FILE, \fB\-\-debug_signal_file\fR=\fI\,DEBUG_SIGNAL_FILE\/\fR
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debugging purpose: waiting until the specified file is
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created
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.SH "SEE ALSO"
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For more information, please refer to the MariaDB Knowledge Base, available online at https://mariadb.com/kb/
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.SH AUTHOR
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MariaDB Foundation (http://www.mariadb.org/).
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