可以看出是从内部的一个ip上用dev_read 用户连接到备库上执行的 查询导致数据库备份拷贝完数据文件后FLUSH NO_WRITE_TO_BINLOG TABLES加锁处等待状态(waiting for table flush) 而由于上述慢sql查询,导致flush table一直无法关闭该表而一直处于等待状态 (FLUSH NO_WRITE_TO_BINLOG TABLES 关闭所有打开的表,强制关...
准备脚本(batch_ddl.sh) 代码语言:sql AI代码解释 -- 该脚本的作用是对测试表进行持续的DDL操作(增加/删除字段,模拟客户的业务变更)dmp2(master)~/script# echo > batch_ddl.shdmp2(master)~/script# cat << EOF > batch_ddl.sh>#!/bin/bash>echo"alter table sbtest1 add sid varchar(32);"|/data...
--include-tables="^sales\.cars" --rename="cars to autos" copy-back-and-apply-log#A table can be restored into another database; the target database is createdifit is not existing on the server:mysqlbackup --socket=/tmp/restoreserver.sock \ --backup-dir=/BackupDirTemp --backup-image=...
Introduced in SQL Server 2022 (16.x). Back up a group of databases. Uses snapshot backup. Requires WITH METADATA_ONLY. See Create a Transact-SQL snapshot backup. SERVER Introduced in SQL Server 2022 (16.x). Back up all databases on an instance of SQL Server. Uses snapshot backup. Req...
--lock-ddl-per-table 在xtrabackup开始复制每个表之前和备份完成之前,都要阻塞对该表的DDL操作。 --lock-ddl-timeout 在指定的时间内没有返回,就终止备份 --parallel 整数参数,指定xtrabackup子进程用于同时备份文件的线程数。 请注意,此选项适用于文件级别,即,如果您有多个.ibd文件,则它们将并行复制。 如果表...
Use the scripts that were generated on the SQL_A server to create database schema. On each of the tables, disable any foreign key constraints and triggers. If the table has any identity columns, enable identity insert. Use bcp to import the data that you exported in the previous step int...
# 生成导入表空间的SQL mysql> select concat('alter table ',table_schema,'.',TABLE_NAME , ' import tablespace', ';') from information_schema.tables where TABLE_SCHEMA = 'sysbench' into outfile '/tmp/import.sql'; Query OK, 10 rows affected (0.01 sec) ...
Use the scripts that were generated on the SQL_A server to create database schema. On each of the tables, disable any foreign key constraints and triggers. If the table has any identity columns, enable identity insert. Use bcp to import the data that you exported in the previous step int...
Table of Contents - Sql Server Backup Academy 摘要 本期月报是SQL Server数据库备份技术系列文章的开篇,介绍三种常见的SQL Server备份方法的工作方式、使用T-SQL语句和使用SSMS IDE创建备份集三个层面,介绍SQL Server的三种常见备份的工作原理和使用方法。三种常见的备份包括: ...
Thebackup_idtable contains a single columnid, which corresponds to a backup ID taken using thendb_mgmclientSTART BACKUPcommand. This table contains a single row. Example: Assume the following sequence ofSTART BACKUPcommands issued in the NDB management client, with no other backups taken since ...