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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
bitsCN.com

MySQL和SQLite的主要區別在於設計理念和使用場景:1.MySQL適用於大型應用和企業級解決方案,支持高性能和高並發;2.SQLite適合移動應用和桌面軟件,輕量級且易於嵌入。

MySQL中的索引是數據庫表中一列或多列的有序結構,用於加速數據檢索。 1)索引通過減少掃描數據量提升查詢速度。 2)B-Tree索引利用平衡樹結構,適合範圍查詢和排序。 3)創建索引使用CREATEINDEX語句,如CREATEINDEXidx_customer_idONorders(customer_id)。 4)複合索引可優化多列查詢,如CREATEINDEXidx_customer_orderONorders(customer_id,order_date)。 5)使用EXPLAIN分析查詢計劃,避

在MySQL中使用事務可以確保數據一致性。 1)通過STARTTRANSACTION開始事務,執行SQL操作後用COMMIT提交或ROLLBACK回滾。 2)使用SAVEPOINT可以設置保存點,允許部分回滾。 3)性能優化建議包括縮短事務時間、避免大規模查詢和合理使用隔離級別。

選擇PostgreSQL而非MySQL的場景包括:1)需要復雜查詢和高級SQL功能,2)要求嚴格的數據完整性和ACID遵從性,3)需要高級空間功能,4)處理大數據集時需要高性能。 PostgreSQL在這些方面表現出色,適合需要復雜數據處理和高數據完整性的項目。

MySQL數據庫的安全可以通過以下措施實現:1.用戶權限管理:通過CREATEUSER和GRANT命令嚴格控制訪問權限。 2.加密傳輸:配置SSL/TLS確保數據傳輸安全。 3.數據庫備份和恢復:使用mysqldump或mysqlpump定期備份數據。 4.高級安全策略:使用防火牆限制訪問,並啟用審計日誌記錄操作。 5.性能優化與最佳實踐:通過索引和查詢優化以及定期維護兼顧安全和性能。

如何有效監控MySQL性能?使用mysqladmin、SHOWGLOBALSTATUS、PerconaMonitoringandManagement(PMM)和MySQLEnterpriseMonitor等工具。 1.使用mysqladmin查看連接數。 2.用SHOWGLOBALSTATUS查看查詢數。 3.PMM提供詳細性能數據和圖形化界面。 4.MySQLEnterpriseMonitor提供豐富的監控功能和報警機制。

MySQL和SQLServer的区别在于:1)MySQL是开源的,适用于Web和嵌入式系统,2)SQLServer是微软的商业产品,适用于企业级应用。两者在存储引擎、性能优化和应用场景上有显著差异,选择时需考虑项目规模和未来扩展性。

在需要高可用性、高級安全性和良好集成性的企業級應用場景下,應選擇SQLServer而不是MySQL。 1)SQLServer提供企業級功能,如高可用性和高級安全性。 2)它與微軟生態系統如VisualStudio和PowerBI緊密集成。 3)SQLServer在性能優化方面表現出色,支持內存優化表和列存儲索引。


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