MySQL Compressed Backup_MySQL
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MySQL Compressed Backup
[root@test zwc]# ls -lh total 953M -rw-rw---- 1 mysql mysql 61 Nov 3 22:03 db.opt -rw-rw---- 1 mysql mysql 8.5K Nov 3 22:10 t1.frm -rw-rw---- 1 mysql mysql 191M Nov 3 22:25 t1.MYD -rw-rw---- 1 mysql mysql 295M Nov 3 22:42 t1.MYI -rw-rw---- 1 mysql mysql 8.4K Nov 3 22:11 t2.frm -rw-rw---- 1 mysql mysql 468M Nov 3 22:40 t2.ibd Using MEBnormal backup[root@test backup]# time /service/mysql5.5/bin/mysqlbackup --user=root --backup-dir=/backup/meb_normal backup-and-apply-log --socket=/data/mysql5.5/mysql.sock --password MySQL Enterprise Backup version 3.8.2 [2013/06/18] Copyright (c) 2003, 2012, Oracle and/or its affiliates. All Rights Reserved. mysqlbackup: INFO: Starting with following command line ... /service/mysql5.5/bin/mysqlbackup --user=root --backup-dir=/backup/meb_normal backup-and-apply-log --socket=/data/mysql5.5/mysql.sock --password
Enter password:
mysqlbackup: INFO: MySQL server version is '5.5.25-log'.
mysqlbackup: INFO: Got some server configuration information from running server.
IMPORTANT: Please check that mysqlbackup run completes successfully.
At the end of a successful 'backup-and-apply-log' run mysqlbackup
prints "mysqlbackup completed OK!".
-------------------------------------------------------------------- Server Repository Options: -------------------------------------------------------------------- datadir = /data/mysql5.5/ innodb_data_home_dir = innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /data/mysql5.5/ innodb_log_files_in_group = 3 innodb_log_file_size = 536870912 innodb_page_size = Null innodb_checksum_algorithm = innodb -------------------------------------------------------------------- Backup Config Options: -------------------------------------------------------------------- datadir = /backup/meb_normal/datadir innodb_data_home_dir = /backup/meb_normal/datadir innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /backup/meb_normal/datadir innodb_log_files_in_group = 3 innodb_log_file_size = 536870912 innodb_page_size = 16384 innodb_checksum_algorithm = innodb
mysqlbackup: INFO: Unique generated backup id for this is 13834928576619365 mysqlbackup: INFO: Uses posix_fadvise() for performance optimization. mysqlbackup: INFO: Creating 14 buffers each of size 16777216. 131103 23:34:19 mysqlbackup: INFO: Full Backup operation starts with following threads 1 read-threads 6 process-threads 1 write-threads 131103 23:34:19 mysqlbackup: INFO: System tablespace file format is Antelope. 131103 23:34:19 mysqlbackup: INFO: Starting to copy all innodb files... 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/ibdata1 (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Found checkpoint at lsn 3406071002. 131103 23:34:19 mysqlbackup: INFO: Starting log scan from lsn 3406070784. 131103 23:34:19 mysqlbackup: INFO: Copying log... 131103 23:34:19 mysqlbackup: INFO: Log copied, lsn 3406071002. 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_qs_variables.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_script_report_data.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_split_column_names_table.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_sql_tokens.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_known_thread_states.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_named_scripts.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_script_statements.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_waits.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/help_content.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/metadata.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/numbers.ibd (Antelope file format). 131103 23:34:19 mysqlbackup: INFO: Copying /data/mysql5.5/zwc/t2.ibd (Antelope file format). mysqlbackup: Progress in MB: 200 400 131103 23:34:31 mysqlbackup: INFO: Completing the copy of innodb files. 131103 23:34:32 mysqlbackup: INFO: Preparing to lock tables: Connected to mysqld server. 131103 23:34:32 mysqlbackup: INFO: Starting to lock all the tables... 131103 23:34:32 mysqlbackup: INFO: All tables are locked and flushed to disk 131103 23:34:32 mysqlbackup: INFO: Opening backup source directory '/data/mysql5.5/' 131103 23:34:32 mysqlbackup: INFO: Starting to backup all non-innodb files in subdirectories of '/data/mysql5.5/' 131103 23:34:32 mysqlbackup: INFO: Copying the database directory 'common_schema' 131103 23:34:32 mysqlbackup: INFO: Copying the database directory 'mysql' 131103 23:34:32 mysqlbackup: INFO: Copying the database directory 'performance_schema' 131103 23:34:32 mysqlbackup: INFO: Copying the database directory 'test' 131103 23:34:32 mysqlbackup: INFO: Copying the database directory 'zwc' mysqlbackup: Progress in MB: 600 800 131103 23:34:43 mysqlbackup: INFO: Completing the copy of all non-innodb files. 131103 23:34:46 mysqlbackup: INFO: A copied database page was modified at 3406071002. (This is the highest lsn found on page) Scanned log up to lsn 3406074168. Was able to parse the log up to lsn 3406074168. Maximum page number for a log record 312 131103 23:34:46 mysqlbackup: INFO: All tables unlocked 131103 23:34:46 mysqlbackup: INFO: All MySQL tables were locked for 14.202 seconds. 131103 23:34:46 mysqlbackup: INFO: Full Backup operation completed successfully. 131103 23:34:46 mysqlbackup: INFO: Backup created in directory '/backup/meb_normal' 131103 23:34:46 mysqlbackup: INFO: MySQL binlog position: filename ZWC-TEST.000015, position 11153
------------------------------------------------------------- Parameters Summary ------------------------------------------------------------- Start LSN : 3406070784 End LSN : 3406074168 ------------------------------------------------------------- mysqlbackup: INFO: Creating 14 buffers each of size 65536. 131103 23:34:46 mysqlbackup: INFO: Apply-log operation starts with following threads 1 read-threads 1 process-threads 131103 23:34:46 mysqlbackup: INFO: ibbackup_logfile's creation parameters: start lsn 3406070784, end lsn 3406074168, start checkpoint 3406071002. mysqlbackup: INFO: InnoDB: Starting an apply batch of log records to the database... InnoDB: Progress in percent: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 Setting log file size to 536870912 InnoDB: Progress in MB: 100 200 300 400 500 Setting log file size to 536870912 InnoDB: Progress in MB: 100 200 300 400 500 Setting log file size to 536870912 InnoDB: Progress in MB: 100 200 300 400 500 131103 23:35:08 mysqlbackup: INFO: We were able to parse ibbackup_logfile up to lsn 3406074168. mysqlbackup: INFO: Last MySQL binlog file position 0 11153, file name ./ZWC-TEST.000015 131103 23:35:08 mysqlbackup: INFO: The first data file is '/backup/meb_normal/datadir/ibdata1' and the new created log files are at '/backup/meb_normal/datadir' 131103 23:35:08 mysqlbackup: INFO: Apply-log operation completed successfully. 131103 23:35:08 mysqlbackup: INFO: Full backup prepared for recovery successfully. mysqlbackup completed OK! real 0m54.611s user 0m1.119s sys 0m3.415s [root@test backup]# [root@test backup]# [root@test backup]# du -sh /backup/meb_normal 2.5G /backup/meb_normal compressed backup[root@test backup]# time /service/mysql5.5/bin/mysqlbackup --user=root --backup-dir=/backup/meb_compressed --compress --socket=/data/mysql5.5/mysql.sock --password backup MySQL Enterprise Backup version 3.8.2 [2013/06/18] Copyright (c) 2003, 2012, Oracle and/or its affiliates. All Rights Reserved. mysqlbackup: INFO: Starting with following command line ... /service/mysql5.5/bin/mysqlbackup --user=root --backup-dir=/backup/meb_compressed --compress --socket=/data/mysql5.5/mysql.sock --password backup
Enter password:
mysqlbackup: INFO: MySQL server version is '5.5.25-log'.
mysqlbackup: INFO: Got some server configuration information from running server.
IMPORTANT: Please check that mysqlbackup run completes successfully.
At the end of a successful 'backup' run mysqlbackup
prints "mysqlbackup completed OK!".
-------------------------------------------------------------------- Server Repository Options: -------------------------------------------------------------------- datadir = /data/mysql5.5/ innodb_data_home_dir = innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /data/mysql5.5/ innodb_log_files_in_group = 3 innodb_log_file_size = 536870912 innodb_page_size = Null innodb_checksum_algorithm = innodb -------------------------------------------------------------------- Backup Config Options: -------------------------------------------------------------------- datadir = /backup/meb_compressed/datadir innodb_data_home_dir = /backup/meb_compressed/datadir innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /backup/meb_compressed/datadir innodb_log_files_in_group = 3 innodb_log_file_size = 536870912 innodb_page_size = 16384 innodb_checksum_algorithm = innodb mysqlbackup: INFO: Unique generated backup id for this is 13834930694674075 mysqlbackup: INFO: Uses posix_fadvise() for performance optimization. mysqlbackup: INFO: Creating 18 buffers each of size 16794070. 131103 23:37:51 mysqlbackup: INFO: Compress Backup operation starts with following threads 1 read-threads 6 process-threads 1 write-threads 131103 23:37:51 mysqlbackup: INFO: System tablespace file format is Antelope. 131103 23:37:51 mysqlbackup: INFO: Starting to copy all innodb files... 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/ibdata1 (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Found checkpoint at lsn 3406075519. 131103 23:37:51 mysqlbackup: INFO: Starting log scan from lsn 3406075392. 131103 23:37:51 mysqlbackup: INFO: Copying log... 131103 23:37:51 mysqlbackup: INFO: Log copied, lsn 3406075519. 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_qs_variables.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_script_report_data.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_split_column_names_table.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_global_sql_tokens.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_known_thread_states.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_named_scripts.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_script_statements.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/_waits.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/help_content.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/metadata.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/common_schema/numbers.ibd (Antelope file format). 131103 23:37:51 mysqlbackup: INFO: Copying /data/mysql5.5/zwc/t2.ibd (Antelope file format). mysqlbackup: Progress in MB: 200 400 131103 23:37:59 mysqlbackup: INFO: Completing the copy of innodb files. 131103 23:38:02 mysqlbackup: INFO: Preparing to lock tables: Connected to mysqld server. 131103 23:38:02 mysqlbackup: INFO: Starting to lock all the tables... 131103 23:38:02 mysqlbackup: INFO: All tables are locked and flushed to disk 131103 23:38:02 mysqlbackup: INFO: Opening backup source directory '/data/mysql5.5/' 131103 23:38:02 mysqlbackup: INFO: Starting to backup all non-innodb files in subdirectories of '/data/mysql5.5/' 131103 23:38:02 mysqlbackup: INFO: Copying the database directory 'common_schema' 131103 23:38:02 mysqlbackup: INFO: Copying the database directory 'mysql' 131103 23:38:03 mysqlbackup: INFO: Copying the database directory 'performance_schema' 131103 23:38:03 mysqlbackup: INFO: Copying the database directory 'test' 131103 23:38:03 mysqlbackup: INFO: Copying the database directory 'zwc' mysqlbackup: Progress in MB: 600 800 131103 23:38:14 mysqlbackup: INFO: Completing the copy of all non-innodb files. 131103 23:38:16 mysqlbackup: INFO: A copied database page was modified at 3406075519. (This is the highest lsn found on page) Scanned log up to lsn 3406078687. Was able to parse the log up to lsn 3406078687. Maximum page number for a log record 316 131103 23:38:16 mysqlbackup: INFO: All tables unlocked 131103 23:38:16 mysqlbackup: INFO: All MySQL tables were locked for 13.426 seconds. 131103 23:38:16 mysqlbackup: INFO: Compressed 496 MB of data files to 200573 kbytes (compression 60.51%). 131103 23:38:16 mysqlbackup: INFO: Compress Backup operation completed successfully. 131103 23:38:16 mysqlbackup: INFO: Backup created in directory '/backup/meb_compressed' 131103 23:38:16 mysqlbackup: INFO: MySQL binlog position: filename ZWC-TEST.000015, position 16895
------------------------------------------------------------- Parameters Summary ------------------------------------------------------------- Start LSN : 3406075392 End LSN : 3406078687 ------------------------------------------------------------- mysqlbackup completed OK! real 0m29.922s user 0m9.333s sys 0m1.924s [root@test backup]# [root@test backup]# [root@test backup]# du -sh /backup/meb_compressed 684M /backup/meb_compressed [root@test zwc]# ll -h /backup/meb_compressed/datadir/zwc total 680M -rw-r--r-- 1 root root 61 Nov 3 23:38 db.opt -rw-r--r-- 1 root root 8.5K Nov 3 23:38 t1.frm -rw-r--r-- 1 root root 191M Nov 3 23:38 t1.MYD -rw-r--r-- 1 root root 295M Nov 3 23:38 t1.MYI -rw-r--r-- 1 root root 8.4K Nov 3 23:38 t2.frm -rw-r--r-- 1 root root 195M Nov 3 23:38 t2.ibz Innodb Tablespace compressed independently .ibz suffix, MyISAM uncompressed!Using XtraBackupnormal backup[root@test backup]# time innobackupex --defaults-file=/service/mysql5.5/my.cnf --rsync --user=root --no-timestamp --password=root /backup/xtra_normal InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy and Percona LLC and/or its affiliates 2009-2013. All Rights Reserved. This software is published under the GNU GENERAL PUBLIC LICENSE Version 2, June 1991. 131104 00:17:55 innobackupex: Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_file=/service/mysql5.5/my.cnf;mysql_read_default_group=xtrabackup' as 'root' (using password: YES). 131104 00:17:55 innobackupex: Connected to MySQL server IMPORTANT: Please check that the backup run completes successfully. At the end of a successful backup run innobackupex prints "completed OK!". innobackupex: Using mysql server version 5.5.25-log innobackupex: Created backup directory /backup/xtra_normal 131104 00:17:55 innobackupex: Starting ibbackup with command: xtrabackup_55 --defaults-file="/service/mysql5.5/my.cnf" --defaults-group="mysqld" --backup --suspend-at-end --target-dir=/backup/xtra_normal --tmpdir=/tmp innobackupex: Waiting for ibbackup (pid=4569) to suspend innobackupex: Suspend file '/backup/xtra_normal/xtrabackup_suspended_2' xtrabackup_55 version 2.1.5 for Percona Server 5.5.31 Linux (x86_64) (revision id: 680) xtrabackup: uses posix_fadvise(). xtrabackup: cd to /data/mysql5.5 xtrabackup: using the following InnoDB configuration: xtrabackup: innodb_data_home_dir = ./ xtrabackup: innodb_data_file_path = ibdata1:10M:autoextend xtrabackup: innodb_log_group_home_dir = ./ xtrabackup: innodb_log_files_in_group = 3 xtrabackup: innodb_log_file_size = 536870912 xtrabackup: using O_DIRECT >> log scanned up to (3406079293) 131104 0:17:55 InnoDB: Warning: allocated tablespace 23, old maximum was 9 [01] Copying ./ibdata1 to /backup/xtra_normal/ibdata1 [01] ...done [01] Copying ./zwc/t2.ibd to /backup/xtra_normal/zwc/t2.ibd >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) [01] ...done [01] Copying ./common_schema/_global_script_report_data.ibd to /backup/xtra_normal/common_schema/_global_script_report_data.ibd [01] ...done [01] Copying ./common_schema/_named_scripts.ibd to /backup/xtra_normal/common_schema/_named_scripts.ibd [01] ...done [01] Copying ./common_schema/help_content.ibd to /backup/xtra_normal/common_schema/help_content.ibd [01] ...done [01] Copying ./common_schema/_waits.ibd to /backup/xtra_normal/common_schema/_waits.ibd [01] ...done [01] Copying ./common_schema/metadata.ibd to /backup/xtra_normal/common_schema/metadata.ibd [01] ...done [01] Copying ./common_schema/_known_thread_states.ibd to /backup/xtra_normal/common_schema/_known_thread_states.ibd [01] ...done [01] Copying ./common_schema/_global_sql_tokens.ibd to /backup/xtra_normal/common_schema/_global_sql_tokens.ibd [01] ...done [01] Copying ./common_schema/_script_statements.ibd to /backup/xtra_normal/common_schema/_script_statements.ibd [01] ...done [01] Copying ./common_schema/_global_split_column_names_table.ibd to /backup/xtra_normal/common_schema/_global_split_column_names_table.ibd [01] ...done [01] Copying ./common_schema/_global_qs_variables.ibd to /backup/xtra_normal/common_schema/_global_qs_variables.ibd [01] ...done >> log scanned up to (3406079293) [01] Copying ./common_schema/numbers.ibd to /backup/xtra_normal/common_schema/numbers.ibd [01] ...done xtrabackup: Creating suspend file '/backup/xtra_normal/xtrabackup_suspended_2' with pid '4569' 131104 00:18:13 innobackupex: Continuing after ibbackup has suspended 131104 00:18:13 innobackupex: Starting a prep copy of non-InnoDB tables and files innobackupex: in subdirectories of '/data/mysql5.5' innobackupex: Backing up file '/data/mysql5.5/zwc/t2.frm' innobackupex: Backing up file '/data/mysql5.5/zwc/db.opt' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.MYI' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.MYD' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.frm' innobackupex: Backing up files '/data/mysql5.5/common_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (95 files) innobackupex: Backing up files '/data/mysql5.5/mysql/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (78 files) innobackupex: Backing up files '/data/mysql5.5/performance_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (18 files) 131104 00:18:13 Starting rsync as: rsync -t "/data/mysql5.5" --files-from="/tmp/xtrabackup_rsyncfiles_pass1" "/backup/xtra_normal" >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) 131104 00:18:22 rsync finished successfully. 131104 00:18:22 innobackupex: Finished a prep copy of non-InnoDB tables and files 131104 00:18:22 innobackupex: Starting to lock all tables... 131104 00:18:23 innobackupex: All tables locked and flushed to disk 131104 00:18:23 innobackupex: Starting to backup non-InnoDB tables and files innobackupex: in subdirectories of '/data/mysql5.5' innobackupex: Backing up file '/data/mysql5.5/zwc/t2.frm' innobackupex: Backing up file '/data/mysql5.5/zwc/db.opt' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.MYI' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.MYD' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.frm' innobackupex: Backing up files '/data/mysql5.5/common_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (95 files) innobackupex: Backing up files '/data/mysql5.5/mysql/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (78 files) innobackupex: Backing up files '/data/mysql5.5/performance_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (18 files) 131104 00:18:23 Starting rsync as: rsync -t "/data/mysql5.5" --files-from="/tmp/xtrabackup_rsyncfiles_pass2" "/backup/xtra_normal" 131104 00:18:23 rsync finished successfully. 131104 00:18:23 innobackupex: Finished backing up non-InnoDB tables and files 131104 00:18:23 innobackupex: Waiting for log copying to finish >> log scanned up to (3406079293) xtrabackup: The latest check point (for incremental): '3406079293' xtrabackup: Stopping log copying thread. .>> log scanned up to (3406079293) xtrabackup: Creating suspend file '/backup/xtra_normal/xtrabackup_log_copied' with pid '4569' xtrabackup: Transaction log of lsn (3406079293) to (3406079293) was copied. 131104 00:18:24 innobackupex: All tables unlocked innobackupex: Backup created in directory '/backup/xtra_normal' innobackupex: MySQL binlog position: filename 'ZWC-TEST.000015', position 20185 131104 00:18:24 innobackupex: Connection to database server closed 131104 00:18:24 innobackupex: completed OK! real 0m29.516s user 0m3.302s sys 0m3.911s [root@test backup]# [root@test backup]# [root@test backup]# du -sh /backup/xtra_normal 984M /backup/xtra_normal compressed backup[root@test backup]# time innobackupex --defaults-file=/service/mysql5.5/my.cnf --user=root --no-timestamp --password=idontcare --stream=tar ./ | gzip - > /backup/xtra_compressed.tar.gz InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy and Percona LLC and/or its affiliates 2009-2013. All Rights Reserved. This software is published under the GNU GENERAL PUBLIC LICENSE Version 2, June 1991. 131104 00:22:29 innobackupex: Connecting to MySQL server with DSN 'dbi:mysql:;mysql_read_default_file=/service/mysql5.5/my.cnf;mysql_read_default_group=xtrabackup' as 'root' (using password: YES). 131104 00:22:29 innobackupex: Connected to MySQL server IMPORTANT: Please check that the backup run completes successfully. At the end of a successful backup run innobackupex prints "completed OK!". innobackupex: Using mysql server version 5.5.25-log innobackupex: Created backup directory /backup 131104 00:22:29 innobackupex: Starting ibbackup with command: xtrabackup_55 --defaults-file="/service/mysql5.5/my.cnf" --defaults-group="mysqld" --backup --suspend-at-end --target-dir=/tmp --tmpdir=/tmp --stream=tar innobackupex: Waiting for ibbackup (pid=4648) to suspend innobackupex: Suspend file '/tmp/xtrabackup_suspended_2' xtrabackup_55 version 2.1.5 for Percona Server 5.5.31 Linux (x86_64) (revision id: 680) xtrabackup: uses posix_fadvise(). xtrabackup: cd to /data/mysql5.5 xtrabackup: using the following InnoDB configuration: xtrabackup: innodb_data_home_dir = ./ xtrabackup: innodb_data_file_path = ibdata1:10M:autoextend xtrabackup: innodb_log_group_home_dir = ./ xtrabackup: innodb_log_files_in_group = 3 xtrabackup: innodb_log_file_size = 536870912 xtrabackup: using O_DIRECT >> log scanned up to (3406079293) 131104 0:22:29 InnoDB: Warning: allocated tablespace 23, old maximum was 9 [01] Streaming ./ibdata1 [01] ...done [01] Streaming ./zwc/t2.ibd >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) [01] ...done [01] Streaming ./common_schema/_global_script_report_data.ibd [01] ...done [01] Streaming ./common_schema/_named_scripts.ibd [01] ...done [01] Streaming ./common_schema/help_content.ibd [01] ...done [01] Streaming ./common_schema/_waits.ibd [01] ...done [01] Streaming ./common_schema/metadata.ibd [01] ...done [01] Streaming ./common_schema/_known_thread_states.ibd [01] ...done [01] Streaming ./common_schema/_global_sql_tokens.ibd [01] ...done [01] Streaming ./common_schema/_script_statements.ibd [01] ...done [01] Streaming ./common_schema/_global_split_column_names_table.ibd [01] ...done [01] Streaming ./common_schema/_global_qs_variables.ibd [01] ...done [01] Streaming ./common_schema/numbers.ibd [01] ...done >> log scanned up to (3406079293) xtrabackup: Creating suspend file '/tmp/xtrabackup_suspended_2' with pid '4648' 131104 00:23:02 innobackupex: Continuing after ibbackup has suspended 131104 00:23:02 innobackupex: Starting to lock all tables... 131104 00:23:02 innobackupex: All tables locked and flushed to disk 131104 00:23:02 innobackupex: Starting to backup non-InnoDB tables and files innobackupex: in subdirectories of '/data/mysql5.5' innobackupex: Backing up file '/data/mysql5.5/zwc/t2.frm' innobackupex: Backing up file '/data/mysql5.5/zwc/db.opt' innobackupex: Backing up file '/data/mysql5.5/zwc/t1.MYI' >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) innobackupex: Backing up file '/data/mysql5.5/zwc/t1.MYD' >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) >> log scanned up to (3406079293) innobackupex: Backing up file '/data/mysql5.5/zwc/t1.frm' innobackupex: Backing up files '/data/mysql5.5/common_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (95 files) >> log scanned up to (3406079293) innobackupex: Backing up files '/data/mysql5.5/mysql/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (78 files) innobackupex: Backing up files '/data/mysql5.5/performance_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (18 files) 131104 00:23:30 innobackupex: Finished backing up non-InnoDB tables and files 131104 00:23:30 innobackupex: Waiting for log copying to finish xtrabackup: The latest check point (for incremental): '3406079293' xtrabackup: Stopping log copying thread. .>> log scanned up to (3406079293) xtrabackup: Creating suspend file '/tmp/xtrabackup_log_copied' with pid '4648' xtrabackup: Transaction log of lsn (3406079293) to (3406079293) was copied. 131104 00:23:31 innobackupex: All tables unlocked innobackupex: Backup created in directory '/backup' innobackupex: MySQL binlog position: filename 'ZWC-TEST.000015', position 20185 131104 00:23:31 innobackupex: Connection to database server closed innobackupex: You must use -i (--ignore-zeros) option for extraction of the tar stream. 131104 00:23:31 innobackupex: completed OK! real 1m2.854s user 0m45.188s sys 0m9.802s [root@test backup]# [root@test backup]# [root@test backup]# ls -lh /backup/xtra_compressed.tar.gz -rw-r--r-- 1 root root 255M Nov 4 00:23 /backup/xtra_compressed.tar.gz [root@test tmp]# tar xvfzi xtra_compressed.tar.gz Uncompressed need add "-i" parameter
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全表掃描在MySQL中可能比使用索引更快,具體情況包括:1)數據量較小時;2)查詢返回大量數據時;3)索引列不具備高選擇性時;4)複雜查詢時。通過分析查詢計劃、優化索引、避免過度索引和定期維護表,可以在實際應用中做出最優選擇。

InnoDB的全文搜索功能非常强大,能够显著提高数据库查询效率和处理大量文本数据的能力。1)InnoDB通过倒排索引实现全文搜索,支持基本和高级搜索查询。2)使用MATCH和AGAINST关键字进行搜索,支持布尔模式和短语搜索。3)优化方法包括使用分词技术、定期重建索引和调整缓存大小,以提升性能和准确性。

是的,可以在 Windows 7 上安裝 MySQL,雖然微軟已停止支持 Windows 7,但 MySQL 仍兼容它。不過,安裝過程中需要注意以下幾點:下載適用於 Windows 的 MySQL 安裝程序。選擇合適的 MySQL 版本(社區版或企業版)。安裝過程中選擇適當的安裝目錄和字符集。設置 root 用戶密碼,並妥善保管。連接數據庫進行測試。注意 Windows 7 上的兼容性問題和安全性問題,建議升級到受支持的操作系統。

聚集索引和非聚集索引的區別在於:1.聚集索引將數據行存儲在索引結構中,適合按主鍵查詢和範圍查詢。 2.非聚集索引存儲索引鍵值和數據行的指針,適用於非主鍵列查詢。

MySQL是一個開源的關係型數據庫管理系統。 1)創建數據庫和表:使用CREATEDATABASE和CREATETABLE命令。 2)基本操作:INSERT、UPDATE、DELETE和SELECT。 3)高級操作:JOIN、子查詢和事務處理。 4)調試技巧:檢查語法、數據類型和權限。 5)優化建議:使用索引、避免SELECT*和使用事務。

MySQL支持四種索引類型:B-Tree、Hash、Full-text和Spatial。 1.B-Tree索引適用於等值查找、範圍查詢和排序。 2.Hash索引適用於等值查找,但不支持範圍查詢和排序。 3.Full-text索引用於全文搜索,適合處理大量文本數據。 4.Spatial索引用於地理空間數據查詢,適用於GIS應用。

MySQL 數據庫中,用戶和數據庫的關係通過權限和表定義。用戶擁有用戶名和密碼,用於訪問數據庫。權限通過 GRANT 命令授予,而表由 CREATE TABLE 命令創建。要建立用戶和數據庫之間的關係,需創建數據庫、創建用戶,然後授予權限。

MySQL 和 MariaDB 可以共存,但需要謹慎配置。關鍵在於為每個數據庫分配不同的端口號和數據目錄,並調整內存分配和緩存大小等參數。連接池、應用程序配置和版本差異也需要考慮,需要仔細測試和規劃以避免陷阱。在資源有限的情況下,同時運行兩個數據庫可能會導致性能問題。
