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https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-overview.html
NDB Cluster is a technology that enables clustering of in-memory databases in a shared-nothing system. The shared-nothing architecture enables the system to work with very inexpensive hardware, and with a minimum of specific requirements for ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-perror.html
ndb_perror shows information about an NDB error, given its error code. This includes the error message, the type of error, and whether the error is permanent or temporary. This is intended as a drop-in replacement for perror --ndb, which is no ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-print-backup-file.html
Usage ndb_print_backup_file [-P password] file_name file_name is the name of a cluster backup file. This can be any of the files (.Data, .ctl, or .log file) found in a cluster backup directory. These files are found in the data node's backup ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-print-file.html
ndb_print_file obtains information from an NDB Cluster Disk Data file. Usage ndb_print_file [-v] [-q] file_name+ file_name is the name of an NDB Cluster Disk Data file. Like ndb_print_schema_file and ndb_print_sys_file (and unlike most of the other ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-print-frag-file.html
It is intended for use in helping to diagnose issues with data node restarts. Each fragment file contains records of the fragments belonging to each NDB table. For more information about cluster fragment files, see NDB Cluster Data Node File System ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-print-schema-file.html
Usage ndb_print_schema_file file_name file_name is the name of a cluster schema file. For more information about cluster schema files, see NDB Cluster Data Node File System Directory. Like ndb_print_backup_file and ndb_print_sys_file (and unlike ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-print-sys-file.html
ndb_print_sys_file obtains diagnostic information from an NDB Cluster system file. Usage ndb_print_sys_file file_name file_name is the name of a cluster system file (sysfile). Cluster system files are located in a data node's data directory ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-programs-ndb-redo-log-reader.html
Reads a redo log file, checking it for errors, printing its contents in a human-readable format, or both. ndb_redo_log_reader is intended for use primarily by NDB Cluster developers and Support personnel in debugging and diagnosing problems. This ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-replication-conflict-resolution.html
Requirements Source Column Control Conflict Resolution Control Conflict Resolution Functions Conflict Resolution Exceptions Table Conflict Detection Status Variables Examples When using a replication setup involving multiple sources (including ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-replication-multi-source.html
It is possible to use NDB Cluster for bidirectional replication between two clusters, as well as for circular replication between any number of clusters. Each cluster has two SQL nodes, with SQL nodes A and B belonging to Cluster 1, SQL nodes C and ...