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  Construction of Redis multi-instance and master-slave replication environment

  First, the principle of redis master-slave replication is the same as that of MySQL master-slave replication. Although Redis reads and writes very fast, it will also cause read pressure. In order to share the read pressure, Redis supports master-slave replication, and the master-slave structure of Redis can adopt one master.

  2022-06-01 05:32:07 Views: 231
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  Root user password is required for Mysql uninstallation and reinstallation after installation on windows

  Today, I'm going to continue to learn Mysql, uninstall the current Mysql environment on windows, and always report the need for current root password during the installation. I don't know what's going on. Here's the solution. 1. Clear MYSQL

  2022-06-01 05:32:06 Views: 282
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  Dynamic data acquisition and automatic supplementary recording in the development of operation and maintenance

  Vm_info_dict = virtual_machine_info.objects.get (ip=vm_ip_addr) print (vm_info_dict) if vm_info_dict!

  2022-06-01 05:32:06 Views: 230
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  Use Linux Strace to trace and debug Oracle program processes

  The so-called operating system is the middle layer in which the application communicates with the server hardware. All the operations of the application are to communicate with the operating system. The operating system is responsible for translating all interactions into device languages for hardware interaction. We are doing Oracle fault debugging and kernel principle work

  2022-06-01 05:32:05 Views: 225
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  Initialization of 2011-11-25 packet

  Http://www.itpub.net/thread-1499223-20-1.html191 Building in order to encourage visitors to use our website more and more, we give points for their activities. Our integral calculation method is basic points and coefficients.

  2022-06-01 05:32:05 Views: 309
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  DBF imports to Oracle database

  Today, I encountered a requirement, which is to import a DBF file into the Oracle library. I used the migration tool provided by the company all the time, but I don't know why I kept reporting that the DBF file could not be accessed today. After many attempts, I threw it away in anger and looked for another way.

  2022-06-01 05:32:05 Views: 207
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  MySQL automatically deletes tables on a regular basis

  Log tables with more than 800 million units need to automatically delete the log tables created 30 days ago after automatic sorting. But only in Master offline these log tables, and Slave still needs to remain online, in case of query. Http://blog.itpub.net/292

  2022-06-01 05:32:05 Views: 283
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  MySQL uses bin-log heterogeneous libraries to restore to a specified point in time

  1. Build the initialization database 2, determine the location of the log position3, backup database T04, simulation database change T15, simulation database change T26, restore database to backup time point T07, simulation database restore to time point T18, simulation database recovery

  2022-06-01 05:32:04 Views: 224
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  [giant sequoia database Sequoiadb] [Lob] lob attribute modifycationTime

  [problem description] does the lob attribute modifycationTime refer to the time when writing starts or ends? Solution] 1. If you open an existing lob,modificationTime by reading (getLob ()), it is this.

  2022-06-01 05:32:04 Views: 224
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  What is updated in the Chinese version of mac version of outlook 2019?

  Unwittingly, we ushered in the mac version of outlook 2019 16.39Chinese version. With the continuous upgrading of the mac version of outlook, in addition to constantly fixing a variety of performance problems, the functionality is also constantly improving. This time, mac version of outlook 2019

  2022-06-01 05:31:58 Views: 239
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  What is archive log expired?

  A status of "expired" means that the backup piece or backup set is not found in the backup destinati

  2022-06-01 05:31:52 Views: 255
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  A brief introduction to Oracle stored procedure Procedure (part I)

  We all know that SQL language does not have judgment and process control statements, and PL/SQL is a good supplement to the deficiency of SQL language. The stored procedure is also a kind of PL/SQL block, but unlike the traditional PL/SQL block, the stored procedure is named.

  2022-06-01 05:31:52 Views: 255
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  ExactScan pro for mac (Universal Scanner Integration tool) 20.6.12

  Support more than 200 scanner applications on Mac tools-ExactScan pro for mac to share, scan, file, sort, archive and find documents. Save time and money by moving your paper to the digital world. ExactScan

  2022-06-01 05:31:52 Views: 202
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  Summary of advantages, disadvantages and common points of MySQL vertical split and horizontal split

  Sharding of data can be divided into two split modes according to the type of split rules. One is to split into different databases (hosts) according to different tables (or Schema), which can be called vertical (vertical) split of data; the other is

  2022-06-01 05:31:51 Views: 210
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  Detailed description of Oracle RAC implementation-check after installation 06

  Oracle RAC implementation details-check 06 after installation to see the database version SQL > select * from version; view the cluster name [root@rac01 bin] #. / cemutlo

  2022-06-01 05:31:48 Views: 258
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  [giant sequoia database Sequoiadb] the slave node has not synchronized the data written by the primary node.

  [problem description] standby node has not synchronized the data written by the primary node [solution] 1. First check whether the standby node is faulty, if there is no failure, check the log of the standby node to see what the node was doing at that time. Node log: database installation directory / database/data/sv

  2022-06-01 05:31:47 Views: 261
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  [Oracle Script] check latch

  Select l.latch# latch,l.name, nvl (c.latches, 0) children, l.gets, l.misses, l.gets-l.misses "Simple

  2022-06-01 05:31:43 Views: 209
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  MYSQL Learning Series-- DDL statement

  DDL statement: a language for creating, deleting, modifying and other operations on objects within the database. DDL statements are mostly used by database administrators (DBA). Developers rarely use SQL statements to perform various operations on the database after logging in to mysql. Practical exercise

  2022-06-01 05:31:43 Views: 256
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  Analysis on the implementation of (transfer) MySQL ORDER BY

  Author: Sky.Jian | can be reprinted at will, but be sure to indicate the original origin of the article and the author's information and copyright notice link in the form of hyperlink: http://www.jianzhaoyang.com/database/mysq

  2022-06-01 05:31:40 Views: 263
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  Mysql uses mysql_multi to configure multiple instances of a host.

  In the official Mysql help documentation, there are three ways to start Mysql: mysqld_safe, mysql.server, and mysql_multi. Introduction to mysql_multi: Mysqld_multi

  2022-06-01 05:31:37 Views: 283