mysql5.7 Logical Backup tool mysqlpump

Mysqlpump is a logical backup tool that is unique to the mysql5.7.8 version, with more features than Mysqldump and Mysqldumper,mysqlpump, as described in the official documentation:

mysqlpump features include: parallel processing  of databases, and of objects within databases, to speed up  the dump process Better control over which databases and  database objects  (tables, stored programs, user accounts) to dump  dumping of user accounts as account-management statements  (CREATE USER ,  grant)  rather thanas inserts into the mysql system database  Capability of creating compressed output Progress indicator  (The  values are estimates)  for dump file reloading, faster secondary  index creation for InnoDB tables by adding indexes after  Rows are inserted 

1, support multi-process backup database and database objects, speed up the backup process.

2, have a better control strategy to back up the database and database objects (tables, stored procedures, accounts).

3. The backup user manages SQL (create User,grant) through the account and is no longer the way to insert records into the MySQL system library

4. Ability to create compressed files

5. Display progress (estimated value)

6, Reload (Restore) The backup file, the first table after the insertion of data finally indexed, reduce the index maintenance overhead, speed up the restore speed.

To test the performance of the Mysqlpump, a small test was done on its own virtual machine,

To test the virtual machine environment:

Host:

Cpu:intel (R) core (TM) i5-6400 CPU @ 2.70GHz 4 Core

Memory: 1G

Disk:SCSI hard disk 10G

Database:

Version: 5.7.16

To prepare the test data with Sysbench, here is the test data preparation script:

[[EMAIL PROTECTED] SHELL]# CAT TEST_SYSBENCH.SH #!/BIN/SHSYSBENCH --TEST=OLTP  --mysql-host=192.168.110.100 --mysql-port=3307 --mysql-user=root --mysql-password=root  --mysql-db=sbtest2 --oltp-num-tables=4 --oltp-table-size=500000 --report-interval=100   --max-requests=0 --oltp-test-mode=nontrx --oltp-nontrx-mode=select --oltp-read-only =off --max-time=30 --num-threads=16 prepare sysbench --test=oltp --mysql-host= 192.168.110.100 --mysql-port=3307 --mysql-user=root --mysql-password=root --mysql-db= sbtest3 --oltp-num-tables=4 --oltp-table-size=500000 --report-interval=100  -- max-requests=0 --oltp-test-mode=nontrx --oltp-nontrx-mode=select --oltp-read-only=off -- max-time=30 --num-threads=16 prepare sysbench --test=oltp --mysql-host= 192.168.110.100 --mysql-port=3307 --mysqL-user=root --mysql-password=root --mysql-db=sbtest4 --oltp-num-tables=4 --oltp-table-size =500000 --report-interval=100  --max-requests=0 --oltp-test-mode=nontrx -- Oltp-nontrx-mode=select --oltp-read-only=off --max-time=30 --num-threads=16 prepare

The

Test results are as follows:

Shell>time mysqlpump -uroot -proot -s /mysqldata/mysql/mysql3307/mysql3307.sock  -A --single-transaction --default-parallelism=1 > pump.sqlreal     0m46.317suser    0m13.602ssys     0m3.949sshell>time  mysqlpump -uroot -proot -s /mysqldata/mysql/mysql3307/mysql3307.sock -a -- single-transaction --default-parallelism=2 > pump.sqlreal     0m48.707suser    0m15.087ssys     0m3.965sshell>time  mysqlpump -uroot -proot -s /mysqldata/mysql/mysql3307/mysql3307.sock -a -- single-transaction --default-parallelism=4 > pump.sqlreal     0m55.529suser    0m14.783ssys     0m4.143sshell>time  mysqldump  -uroot -proot -s /mysqldata/mysql/mysql3307/mysql3307.sock --set-gtid-purged=off -a --single-transaction  > dump.sqlreal    0m57.089suser    0m8.870ssys      0m3.441s

From the test results, you can find:

1, Mysqlpump is indeed higher than mysqldump efficiency.

2, but because the test machine disk IO is limited, resulting in the number of concurrent threads from 1 to 2 and 4, due to the bottleneck of Io, backup time is more.

3, because the test database table data is small, the test data is distorted, it is recommended to prepare more than a few libraries and large tables of data for testing, the effect will be more obvious.

This article is from the "thick Product Thin Hair" blog, please make sure to keep this source http://1057212.blog.51cto.com/1047212/1910156

mysql5.7 Logical Backup tool mysqlpump