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mydumper 備庫備份注意點

2024-09-07 22:12:57
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           mydumper 備庫備份注意事項:

     備庫備份報錯
   mydumper -u root  -p xxxx--trx-consistency-only -B test -T t1,t2 -o /backup/mysql/`date +%F`
 
  ** (mydumper:19792): WARNING **: Using trx_consistency_only, binlog coordinates will not be accurate if you are writing to non transactional tables.
 
  ** (mydumper:19792): CRITICAL **: There are queries in PROCESSLIST running longer than 60s, aborting dump,
      use --long-query-guard to change the guard value, kill queries (--kill-long-queries) or use
      different server for dump
 
  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
    --ssl                       Connect using SSL
    --key                       The path name to the key file
    --cert                      The path name to the certificate file
    --ca                        The path name to the certificate authority file
    --capath                    The path name to a directory that contains trusted SSL CA certificates in PEM format
    --cipher                    A list of permissible ciphers to use for SSL encryption

(編輯:武林網)

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