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首页"深入理解MYSQL核心原理:解决方案与操作指南"
MySQL核心原理解决方案操作文档官方指导说明书是一本适用于各种不同层次和需求的读者的指导手册。首先,对于研究MYSQL核心原理的知识人士来说,这本文档提供了深入的技术细节和解决方案,帮助他们深入了解MYSQL数据库的内部机制和原理。通过详细的介绍和操作示例,读者可以更加全面地了解MYSQL的工作原理和数据存储机制,从而加深对数据库系统的理解。
其次,对于MYSQL部署运维人员来说,本指导说明书提供了专业的操作指导和最佳实践,帮助他们有效地管理和维护MYSQL数据库。通过详细的步骤和实用的技巧,读者可以学习如何正确地配置MYSQL服务器、监控数据库性能、优化查询语句等操作技术,从而保证数据库系统的稳定运行。
第三,对于MYSQL小白入门知识的读者,本文档也提供了简洁明了的入门指导,帮助他们快速掌握MYSQL数据库的基本概念和常用操作。通过易懂的解释和实例演示,读者可以轻松学习如何创建数据库、插入数据、查询表格等基础知识,从而快速上手MYSQL数据库。
第四,对于MYSQL知识储备面试准备的人士来说,本指导说明书提供了全面的知识点概述和深入的技术细节,帮助他们准备面试和提升自己的技术水平。通过系统的分类和结构化的知识总结,读者可以查阅各种MYSQL相关主题的内容,从而全面掌握面试所需的知识点和技能要求。
最后,对于SQL核心原理研究和创新SQL研究的读者来说,本指导说明书提供了丰富的参考资料和专业的技术支持,帮助他们探索数据库系统的未来发展方向和解决实际问题。通过介绍MYSQL 8.0的最新特性和功能,读者可以了解和应用最新的数据库技术,从而推动SQL研究和创新的发展。
总之,MySQL核心原理解决方案操作文档官方指导说明书是一本多功能性的指导手册,适用于各种不同需求和层次的读者。无论是初学者还是专家,无论是入门者还是专业人士,都可以从中找到所需的知识和技术支持,帮助他们更好地理解和应用MYSQL数据库,实现个人和职业发展目标。
MySQL 8.0 Reference Manual
15.9 InnoDB Table and Page Compression ...................................................................... 3091
15.9.1 InnoDB Table Compression ........................................................................... 3091
15.9.2 InnoDB Page Compression ........................................................................... 3105
15.10 InnoDB Row Formats ............................................................................................ 3108
15.11 InnoDB Disk I/O and File Space Management ........................................................ 3114
15.11.1 InnoDB Disk I/O .......................................................................................... 3115
15.11.2 File Space Management ............................................................................. 3115
15.11.3 InnoDB Checkpoints ................................................................................... 3117
15.11.4 Defragmenting a Table ................................................................................ 3117
15.11.5 Reclaiming Disk Space with TRUNCATE TABLE .......................................... 3118
15.12 InnoDB and Online DDL ........................................................................................ 3118
15.12.1 Online DDL Operations ............................................................................... 3119
15.12.2 Online DDL Performance and Concurrency .................................................. 3133
15.12.3 Online DDL Space Requirements ................................................................ 3136
15.12.4 Online DDL Memory Management ............................................................... 3137
15.12.5 Configuring Parallel Threads for Online DDL Operations ............................... 3137
15.12.6 Simplifying DDL Statements with Online DDL ............................................... 3137
15.12.7 Online DDL Failure Conditions .................................................................... 3138
15.12.8 Online DDL Limitations ................................................................................ 3138
15.13 InnoDB Data-at-Rest Encryption ............................................................................. 3139
15.14 InnoDB Startup Options and System Variables ........................................................ 3148
15.15 InnoDB INFORMATION_SCHEMA Tables .............................................................. 3235
15.15.1 InnoDB INFORMATION_SCHEMA Tables about Compression ...................... 3236
15.15.2 InnoDB INFORMATION_SCHEMA Transaction and Locking Information ........ 3237
15.15.3 InnoDB INFORMATION_SCHEMA Schema Object Tables ............................ 3245
15.15.4 InnoDB INFORMATION_SCHEMA FULLTEXT Index Tables ......................... 3250
15.15.5 InnoDB INFORMATION_SCHEMA Buffer Pool Tables .................................. 3253
15.15.6 InnoDB INFORMATION_SCHEMA Metrics Table ......................................... 3257
15.15.7 InnoDB INFORMATION_SCHEMA Temporary Table Info Table .................... 3266
15.15.8 Retrieving InnoDB Tablespace Metadata from
INFORMATION_SCHEMA.FILES ............................................................................. 3267
15.16 InnoDB Integration with MySQL Performance Schema ............................................ 3268
15.16.1 Monitoring ALTER TABLE Progress for InnoDB Tables Using Performance
Schema .................................................................................................................. 3270
15.16.2 Monitoring InnoDB Mutex Waits Using Performance Schema ........................ 3272
15.17 InnoDB Monitors .................................................................................................... 3275
15.17.1 InnoDB Monitor Types ................................................................................ 3275
15.17.2 Enabling InnoDB Monitors ........................................................................... 3276
15.17.3 InnoDB Standard Monitor and Lock Monitor Output ...................................... 3277
15.18 InnoDB Backup and Recovery ................................................................................ 3282
15.18.1 InnoDB Backup ........................................................................................... 3282
15.18.2 InnoDB Recovery ........................................................................................ 3283
15.19 InnoDB and MySQL Replication ............................................................................. 3285
15.20 InnoDB memcached Plugin .................................................................................... 3287
15.20.1 Benefits of the InnoDB memcached Plugin ................................................... 3288
15.20.2 InnoDB memcached Architecture ................................................................. 3289
15.20.3 Setting Up the InnoDB memcached Plugin ................................................... 3292
15.20.4 InnoDB memcached Multiple get and Range Query Support .......................... 3297
15.20.5 Security Considerations for the InnoDB memcached Plugin ........................... 3300
15.20.6 Writing Applications for the InnoDB memcached Plugin ................................. 3301
15.20.7 The InnoDB memcached Plugin and Replication ........................................... 3313
15.20.8 InnoDB memcached Plugin Internals ............................................................ 3317
15.20.9 Troubleshooting the InnoDB memcached Plugin ........................................... 3321
15.21 InnoDB Troubleshooting ......................................................................................... 3323
15.21.1 Troubleshooting InnoDB I/O Problems ......................................................... 3324
15.21.2 Troubleshooting Recovery Failures .............................................................. 3324
15.21.3 Forcing InnoDB Recovery ........................................................................... 3325
15.21.4 Troubleshooting InnoDB Data Dictionary Operations ..................................... 3326
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MySQL 8.0 Reference Manual
15.21.5 InnoDB Error Handling ................................................................................ 3327
15.22 InnoDB Limits ........................................................................................................ 3328
15.23 InnoDB Restrictions and Limitations ....................................................................... 3329
16 Alternative Storage Engines ................................................................................................ 3331
16.1 Setting the Storage Engine ...................................................................................... 3334
16.2 The MyISAM Storage Engine ................................................................................... 3335
16.2.1 MyISAM Startup Options ............................................................................... 3338
16.2.2 Space Needed for Keys ................................................................................ 3339
16.2.3 MyISAM Table Storage Formats .................................................................... 3339
16.2.4 MyISAM Table Problems ............................................................................... 3342
16.3 The MEMORY Storage Engine ................................................................................ 3343
16.4 The CSV Storage Engine ........................................................................................ 3348
16.4.1 Repairing and Checking CSV Tables ............................................................. 3349
16.4.2 CSV Limitations ............................................................................................ 3349
16.5 The ARCHIVE Storage Engine ................................................................................. 3349
16.6 The BLACKHOLE Storage Engine ........................................................................... 3351
16.7 The MERGE Storage Engine ................................................................................... 3353
16.7.1 MERGE Table Advantages and Disadvantages .............................................. 3356
16.7.2 MERGE Table Problems ............................................................................... 3357
16.8 The FEDERATED Storage Engine ........................................................................... 3358
16.8.1 FEDERATED Storage Engine Overview ......................................................... 3358
16.8.2 How to Create FEDERATED Tables .............................................................. 3360
16.8.3 FEDERATED Storage Engine Notes and Tips ................................................ 3362
16.8.4 FEDERATED Storage Engine Resources ....................................................... 3364
16.9 The EXAMPLE Storage Engine ................................................................................ 3364
16.10 Other Storage Engines .......................................................................................... 3364
16.11 Overview of MySQL Storage Engine Architecture .................................................... 3364
16.11.1 Pluggable Storage Engine Architecture ........................................................ 3366
16.11.2 The Common Database Server Layer .......................................................... 3366
17 Replication ......................................................................................................................... 3369
17.1 Configuring Replication ............................................................................................ 3371
17.1.1 Binary Log File Position Based Replication Configuration Overview ................. 3371
17.1.2 Setting Up Binary Log File Position Based Replication .................................... 3372
17.1.3 Replication with Global Transaction Identifiers ................................................ 3383
17.1.4 Changing GTID Mode on Online Servers ....................................................... 3406
17.1.5 MySQL Multi-Source Replication ................................................................... 3412
17.1.6 Replication and Binary Logging Options and Variables .................................... 3419
17.1.7 Common Replication Administration Tasks ..................................................... 3534
17.2 Replication Implementation ...................................................................................... 3540
17.2.1 Replication Formats ...................................................................................... 3540
17.2.2 Replication Channels .................................................................................... 3548
17.2.3 Replication Threads ...................................................................................... 3551
17.2.4 Relay Log and Replication Metadata Repositories .......................................... 3554
17.2.5 How Servers Evaluate Replication Filtering Rules ........................................... 3561
17.3 Replication Security ................................................................................................. 3570
17.3.1 Setting Up Replication to Use Encrypted Connections .................................... 3570
17.3.2 Encrypting Binary Log Files and Relay Log Files ............................................ 3573
17.3.3 Replication Privilege Checks ......................................................................... 3577
17.4 Replication Solutions ............................................................................................... 3583
17.4.1 Using Replication for Backups ....................................................................... 3584
17.4.2 Handling an Unexpected Halt of a Replica ..................................................... 3587
17.4.3 Monitoring Row-based Replication ................................................................. 3590
17.4.4 Using Replication with Different Source and Replica Storage Engines .............. 3590
17.4.5 Using Replication for Scale-Out ..................................................................... 3591
17.4.6 Replicating Different Databases to Different Replicas ...................................... 3593
17.4.7 Improving Replication Performance ................................................................ 3594
17.4.8 Switching Sources During Failover ................................................................ 3595
17.4.9 Switching Sources and Replicas with Asynchronous Connection Failover ......... 3598
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MySQL 8.0 Reference Manual
17.4.10 Semisynchronous Replication ...................................................................... 3601
17.4.11 Delayed Replication .................................................................................... 3607
17.5 Replication Notes and Tips ...................................................................................... 3610
17.5.1 Replication Features and Issues .................................................................... 3610
17.5.2 Replication Compatibility Between MySQL Versions ....................................... 3637
17.5.3 Upgrading a Replication Topology ................................................................. 3638
17.5.4 Troubleshooting Replication .......................................................................... 3640
17.5.5 How to Report Replication Bugs or Problems ................................................. 3641
18 Group Replication .............................................................................................................. 3643
18.1 Group Replication Background ................................................................................. 3644
18.1.1 Replication Technologies ............................................................................... 3645
18.1.2 Group Replication Use Cases ....................................................................... 3648
18.1.3 Multi-Primary and Single-Primary Modes ........................................................ 3649
18.1.4 Group Replication Services ........................................................................... 3653
18.1.5 Group Replication Plugin Architecture ............................................................ 3656
18.2 Getting Started ........................................................................................................ 3657
18.2.1 Deploying Group Replication in Single-Primary Mode ...................................... 3657
18.2.2 Deploying Group Replication Locally .............................................................. 3670
18.3 Requirements and Limitations .................................................................................. 3671
18.3.1 Group Replication Requirements ................................................................... 3671
18.3.2 Group Replication Limitations ........................................................................ 3674
18.4 Monitoring Group Replication ................................................................................... 3677
18.4.1 GTIDs and Group Replication ........................................................................ 3678
18.4.2 Group Replication Server States .................................................................... 3679
18.4.3 The replication_group_members Table .......................................................... 3680
18.4.4 The replication_group_member_stats Table ................................................... 3680
18.5 Group Replication Operations .................................................................................. 3681
18.5.1 Configuring an Online Group ......................................................................... 3681
18.5.2 Restarting a Group ....................................................................................... 3686
18.5.3 Transaction Consistency Guarantees ............................................................. 3688
18.5.4 Distributed Recovery ..................................................................................... 3694
18.5.5 Support For IPv6 And For Mixed IPv6 And IPv4 Groups ................................. 3709
18.5.6 Using MySQL Enterprise Backup with Group Replication ................................ 3711
18.6 Group Replication Security ....................................................................................... 3717
18.6.1 Methods for Connection Security Management ............................................... 3717
18.6.2 Securing Group Communication Connections with Secure Socket Layer (SSL) . 3719
18.6.3 Securing Distributed Recovery Connections ................................................... 3721
18.6.4 Group Replication IP Address Permissions .................................................... 3725
18.7 Group Replication Performance and Troubleshooting ................................................ 3728
18.7.1 Fine Tuning the Group Communication Thread .............................................. 3728
18.7.2 Flow Control ................................................................................................. 3729
18.7.3 Single Consensus Leader ............................................................................. 3730
18.7.4 Message Compression .................................................................................. 3731
18.7.5 Message Fragmentation ................................................................................ 3733
18.7.6 XCom Cache Management ........................................................................... 3733
18.7.7 Responses to Failure Detection and Network Partitioning ................................ 3735
18.7.8 Handling a Network Partition and Loss of Quorum .......................................... 3741
18.8 Upgrading Group Replication ................................................................................... 3745
18.8.1 Combining Different Member Versions in a Group .......................................... 3746
18.8.2 Group Replication Offline Upgrade ................................................................ 3748
18.8.3 Group Replication Online Upgrade ................................................................ 3748
18.9 Group Replication System Variables ......................................................................... 3752
18.10 Frequently Asked Questions ................................................................................... 3794
19 MySQL Shell ...................................................................................................................... 3799
20 Using MySQL as a Document Store ................................................................................... 3801
20.1 Interfaces to a MySQL Document Store .................................................................... 3802
20.2 Document Store Concepts ....................................................................................... 3802
20.3 JavaScript Quick-Start Guide: MySQL Shell for Document Store ................................ 3803
xviii
MySQL 8.0 Reference Manual
20.3.1 MySQL Shell ................................................................................................ 3804
20.3.2 Download and Import world_x Database ........................................................ 3805
20.3.3 Documents and Collections ........................................................................... 3806
20.3.4 Relational Tables .......................................................................................... 3816
20.3.5 Documents in Tables .................................................................................... 3822
20.4 Python Quick-Start Guide: MySQL Shell for Document Store ..................................... 3823
20.4.1 MySQL Shell ................................................................................................ 3823
20.4.2 Download and Import world_x Database ........................................................ 3825
20.4.3 Documents and Collections ........................................................................... 3825
20.4.4 Relational Tables .......................................................................................... 3836
20.4.5 Documents in Tables .................................................................................... 3842
20.5 X Plugin .................................................................................................................. 3843
20.5.1 Checking X Plugin Installation ....................................................................... 3843
20.5.2 Disabling X Plugin ........................................................................................ 3843
20.5.3 Using Encrypted Connections with X Plugin ................................................... 3843
20.5.4 Using X Plugin with the Caching SHA-2 Authentication Plugin ......................... 3844
20.5.5 Connection Compression with X Plugin .......................................................... 3845
20.5.6 X Plugin Options and Variables ..................................................................... 3848
20.5.7 Monitoring X Plugin ...................................................................................... 3868
21 InnoDB Cluster ................................................................................................................... 3871
22 InnoDB ReplicaSet ............................................................................................................. 3875
23 MySQL NDB Cluster 8.0 .................................................................................................... 3877
23.1 General Information ................................................................................................. 3879
23.2 NDB Cluster Overview ............................................................................................. 3881
23.2.1 NDB Cluster Core Concepts .......................................................................... 3882
23.2.2 NDB Cluster Nodes, Node Groups, Fragment Replicas, and Partitions ............. 3885
23.2.3 NDB Cluster Hardware, Software, and Networking Requirements .................... 3887
23.2.4 What is New in NDB Cluster ......................................................................... 3889
23.2.5 Options, Variables, and Parameters Added, Deprecated or Removed in NDB
8.0 .......................................................................................................................... 3913
23.2.6 MySQL Server Using InnoDB Compared with NDB Cluster ............................. 3918
23.2.7 Known Limitations of NDB Cluster ................................................................. 3921
23.3 NDB Cluster Installation ........................................................................................... 3932
23.3.1 Installation of NDB Cluster on Linux .............................................................. 3934
23.3.2 Installing NDB Cluster on Windows ............................................................... 3942
23.3.3 Initial Configuration of NDB Cluster ............................................................... 3951
23.3.4 Initial Startup of NDB Cluster ........................................................................ 3953
23.3.5 NDB Cluster Example with Tables and Data .................................................. 3953
23.3.6 Safe Shutdown and Restart of NDB Cluster ................................................... 3957
23.3.7 Upgrading and Downgrading NDB Cluster ..................................................... 3957
23.3.8 The NDB Cluster Auto-Installer (No longer supported) .................................... 3960
23.4 Configuration of NDB Cluster ................................................................................... 3981
23.4.1 Quick Test Setup of NDB Cluster .................................................................. 3982
23.4.2 Overview of NDB Cluster Configuration Parameters, Options, and Variables ..... 3984
23.4.3 NDB Cluster Configuration Files .................................................................... 4004
23.4.4 Using High-Speed Interconnects with NDB Cluster ......................................... 4178
23.5 NDB Cluster Programs ............................................................................................ 4179
23.5.1 ndbd — The NDB Cluster Data Node Daemon ............................................... 4179
23.5.2 ndbinfo_select_all — Select From ndbinfo Tables ........................................... 4189
23.5.3 ndbmtd — The NDB Cluster Data Node Daemon (Multi-Threaded) .................. 4194
23.5.4 ndb_mgmd — The NDB Cluster Management Server Daemon ........................ 4195
23.5.5 ndb_mgm — The NDB Cluster Management Client ........................................ 4207
23.5.6 ndb_blob_tool — Check and Repair BLOB and TEXT columns of NDB Cluster
Tables ..................................................................................................................... 4212
23.5.7 ndb_config — Extract NDB Cluster Configuration Information .......................... 4218
23.5.8 ndb_delete_all — Delete All Rows from an NDB Table ................................... 4230
23.5.9 ndb_desc — Describe NDB Tables ............................................................... 4234
23.5.10 ndb_drop_index — Drop Index from an NDB Table ....................................... 4244
xix
MySQL 8.0 Reference Manual
23.5.11 ndb_drop_table — Drop an NDB Table ........................................................ 4248
23.5.12 ndb_error_reporter — NDB Error-Reporting Utility ......................................... 4252
23.5.13 ndb_import — Import CSV Data Into NDB .................................................... 4254
23.5.14 ndb_index_stat — NDB Index Statistics Utility .............................................. 4270
23.5.15 ndb_move_data — NDB Data Copy Utility ................................................... 4278
23.5.16 ndb_perror — Obtain NDB Error Message Information .................................. 4283
23.5.17 ndb_print_backup_file — Print NDB Backup File Contents ............................. 4286
23.5.18 ndb_print_file — Print NDB Disk Data File Contents ..................................... 4291
23.5.19 ndb_print_frag_file — Print NDB Fragment List File Contents ........................ 4291
23.5.20 ndb_print_schema_file — Print NDB Schema File Contents ........................... 4292
23.5.21 ndb_print_sys_file — Print NDB System File Contents .................................. 4293
23.5.22 ndb_redo_log_reader — Check and Print Content of Cluster Redo Log .......... 4293
23.5.23 ndb_restore — Restore an NDB Cluster Backup ........................................... 4295
23.5.24 ndb_select_all — Print Rows from an NDB Table ......................................... 4327
23.5.25 ndb_select_count — Print Row Counts for NDB Tables ................................. 4333
23.5.26 ndb_setup.py — Start browser-based Auto-Installer for NDB Cluster
(DEPRECATED) ...................................................................................................... 4337
23.5.27 ndb_show_tables — Display List of NDB Tables ........................................... 4341
23.5.28 ndb_size.pl — NDBCLUSTER Size Requirement Estimator ........................... 4345
23.5.29 ndb_top — View CPU usage information for NDB threads ............................. 4348
23.5.30 ndb_waiter — Wait for NDB Cluster to Reach a Given Status ........................ 4353
23.5.31 ndbxfrm — Compress, Decompress, Encrypt, and Decrypt Files Created by
NDB Cluster ............................................................................................................ 4359
23.6 Management of NDB Cluster ................................................................................... 4363
23.6.1 Commands in the NDB Cluster Management Client ........................................ 4364
23.6.2 NDB Cluster Log Messages .......................................................................... 4369
23.6.3 Event Reports Generated in NDB Cluster ...................................................... 4388
23.6.4 Summary of NDB Cluster Start Phases .......................................................... 4399
23.6.5 Performing a Rolling Restart of an NDB Cluster ............................................. 4401
23.6.6 NDB Cluster Single User Mode ..................................................................... 4403
23.6.7 Adding NDB Cluster Data Nodes Online ........................................................ 4404
23.6.8 Online Backup of NDB Cluster ...................................................................... 4414
23.6.9 MySQL Server Usage for NDB Cluster .......................................................... 4420
23.6.10 NDB Cluster Disk Data Tables .................................................................... 4422
23.6.11 Online Operations with ALTER TABLE in NDB Cluster .................................. 4428
23.6.12 Privilege Synchronization and NDB_STORED_USER ................................... 4431
23.6.13 NDB API Statistics Counters and Variables .................................................. 4432
23.6.14 ndbinfo: The NDB Cluster Information Database ........................................... 4444
23.6.15 INFORMATION_SCHEMA Tables for NDB Cluster ....................................... 4521
23.6.16 NDB Cluster and the Performance Schema .................................................. 4522
23.6.17 Quick Reference: NDB Cluster SQL Statements ........................................... 4523
23.6.18 NDB Cluster Security Issues ....................................................................... 4529
23.7 NDB Cluster Replication .......................................................................................... 4536
23.7.1 NDB Cluster Replication: Abbreviations and Symbols ..................................... 4538
23.7.2 General Requirements for NDB Cluster Replication ........................................ 4538
23.7.3 Known Issues in NDB Cluster Replication ...................................................... 4540
23.7.4 NDB Cluster Replication Schema and Tables ................................................. 4546
23.7.5 Preparing the NDB Cluster for Replication ..................................................... 4553
23.7.6 Starting NDB Cluster Replication (Single Replication Channel) ........................ 4555
23.7.7 Using Two Replication Channels for NDB Cluster Replication .......................... 4556
23.7.8 Implementing Failover with NDB Cluster Replication ....................................... 4557
23.7.9 NDB Cluster Backups With NDB Cluster Replication ....................................... 4559
23.7.10 NDB Cluster Replication: Bidirectional and Circular Replication ...................... 4565
23.7.11 NDB Cluster Replication Conflict Resolution ................................................. 4569
23.8 NDB Cluster Release Notes ..................................................................................... 4581
24 Partitioning ......................................................................................................................... 4583
24.1 Overview of Partitioning in MySQL ........................................................................... 4584
24.2 Partitioning Types .................................................................................................... 4587
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