MySQL 8.4 Release Notes
Table of Contents
- 25.1 General Information
- 25.2 NDB Cluster Overview
- 25.2.1 NDB Cluster Core Concepts
- 25.2.2 NDB Cluster Nodes, Node Groups, Fragment Replicas, and Partitions
- 25.2.3 NDB Cluster Hardware, Software, and Networking Requirements
- 25.2.4 What is New in MySQL NDB Cluster 8.4
- 25.2.5 Options, Variables, and Parameters Added, Deprecated or Removed in NDB 8.4
- 25.2.6 MySQL Server Using InnoDB Compared with NDB Cluster
- 25.2.7 Known Limitations of NDB Cluster
- 25.3 NDB Cluster Installation
- 25.3.1 Installation of NDB Cluster on Linux
- 25.3.2 Installing NDB Cluster on Windows
- 25.3.3 Initial Configuration of NDB Cluster
- 25.3.4 Initial Startup of NDB Cluster
- 25.3.5 NDB Cluster Example with Tables and Data
- 25.3.6 Safe Shutdown and Restart of NDB Cluster
- 25.3.7 Upgrading and Downgrading NDB Cluster
- 25.4 Configuration of NDB Cluster
- 25.5 NDB Cluster Programs
- 25.5.1 ndbd — The NDB Cluster Data Node Daemon
- 25.5.2 ndbinfo_select_all — Select From ndbinfo Tables
- 25.5.3 ndbmtd — The NDB Cluster Data Node Daemon (Multi-Threaded)
- 25.5.4 ndb_mgmd — The NDB Cluster Management Server Daemon
- 25.5.5 ndb_mgm — The NDB Cluster Management Client
- 25.5.6 ndb_blob_tool — Check and Repair BLOB and TEXT columns of NDB Cluster Tables
- 25.5.7 ndb_config — Extract NDB Cluster Configuration Information
- 25.5.8 ndb_delete_all — Delete All Rows from an NDB Table
- 25.5.9 ndb_desc — Describe NDB Tables
- 25.5.10 ndb_drop_index — Drop Index from an NDB Table
- 25.5.11 ndb_drop_table — Drop an NDB Table
- 25.5.12 ndb_error_reporter — NDB Error-Reporting Utility
- 25.5.13 ndb_import — Import CSV Data Into NDB
- 25.5.14 ndb_index_stat — NDB Index Statistics Utility
- 25.5.15 ndb_move_data — NDB Data Copy Utility
- 25.5.16 ndb_perror — Obtain NDB Error Message Information
- 25.5.17 ndb_print_backup_file — Print NDB Backup File Contents
- 25.5.18 ndb_print_file — Print NDB Disk Data File Contents
- 25.5.19 ndb_print_frag_file — Print NDB Fragment List File Contents
- 25.5.20 ndb_print_schema_file — Print NDB Schema File Contents
- 25.5.21 ndb_print_sys_file — Print NDB System File Contents
- 25.5.22 ndb_redo_log_reader — Check and Print Content of Cluster Redo Log
- 25.5.23 ndb_restore — Restore an NDB Cluster Backup
- 25.5.24 ndb_secretsfile_reader — Obtain Key Information from an Encrypted NDB Data File
- 25.5.25 ndb_select_all — Print Rows from an NDB Table
- 25.5.26 ndb_select_count — Print Row Counts for NDB Tables
- 25.5.27 ndb_show_tables — Display List of NDB Tables
- 25.5.28 ndb_sign_keys — Create, Sign, and Manage TLS Keys and Certificates for NDB Cluster
- 25.5.29 ndb_size.pl — NDBCLUSTER Size Requirement Estimator
- 25.5.30 ndb_top — View CPU usage information for NDB threads
- 25.5.31 ndb_waiter — Wait for NDB Cluster to Reach a Given Status
- 25.5.32 ndbxfrm — Compress, Decompress, Encrypt, and Decrypt Files Created by NDB Cluster
- 25.6 Management of NDB Cluster
- 25.6.1 Commands in the NDB Cluster Management Client
- 25.6.2 NDB Cluster Log Messages
- 25.6.3 Event Reports Generated in NDB Cluster
- 25.6.4 Summary of NDB Cluster Start Phases
- 25.6.5 Performing a Rolling Restart of an NDB Cluster
- 25.6.6 NDB Cluster Single User Mode
- 25.6.7 Adding NDB Cluster Data Nodes Online
- 25.6.8 Online Backup of NDB Cluster
- 25.6.9 Importing Data Into MySQL Cluster
- 25.6.10 MySQL Server Usage for NDB Cluster
- 25.6.11 NDB Cluster Disk Data Tables
- 25.6.12 Online Operations with ALTER TABLE in NDB Cluster
- 25.6.13 Privilege Synchronization and NDB_STORED_USER
- 25.6.14 File System Encryption for NDB Cluster
- 25.6.15 TLS Link Encryption for NDB Cluster
- 25.6.16 NDB API Statistics Counters and Variables
- 25.6.17 ndbinfo: The NDB Cluster Information Database
- 25.6.18 INFORMATION_SCHEMA Tables for NDB Cluster
- 25.6.19 NDB Cluster and the Performance Schema
- 25.6.20 Quick Reference: NDB Cluster SQL Statements
- 25.6.21 NDB Cluster Security Issues
- 25.7 NDB Cluster Replication
- 25.7.1 NDB Cluster Replication: Abbreviations and Symbols
- 25.7.2 General Requirements for NDB Cluster Replication
- 25.7.3 Known Issues in NDB Cluster Replication
- 25.7.4 NDB Cluster Replication Schema and Tables
- 25.7.5 Preparing the NDB Cluster for Replication
- 25.7.6 Starting NDB Cluster Replication (Single Replication Channel)
- 25.7.7 Using Two Replication Channels for NDB Cluster Replication
- 25.7.8 Implementing Failover with NDB Cluster Replication
- 25.7.9 NDB Cluster Backups With NDB Cluster Replication
- 25.7.10 NDB Cluster Replication: Bidirectional and Circular Replication
- 25.7.11 NDB Cluster Replication Using the Multithreaded Applier
- 25.7.12 NDB Cluster Replication Conflict Resolution
- 25.8 NDB Cluster Release Notes
This chapter provides information about MySQL NDB Cluster, a high-availability, high-redundancy version of MySQL adapted for the distributed computing environment, as well as information specific to NDB Cluster 8.4 (NDB 8.4.0), based on version 8.4 of the NDB storage engine. See Section 25.2.4, “What is New in MySQL NDB Cluster 8.4”, for information about differences in NDB 8.4 as compared to earlier releases. See MySQL NDB Cluster 8.0 for information about NDB Cluster 8.0. Both NDB 8.0 and NDB 8.4 are intended for use in production environments. NDB Cluster 7.6 and 7.5 are previous GA releases still supported in production, although new deployments can and should use either of MySQL NDB Cluster 8.0 or 8.4.
NDB Cluster 7.4 and older release series are no longer supported or maintained.