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https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndb-transporter-errors.html
This section lists error codes, names, and messages that are written to the cluster log in the event of transporter errors. 0x00 TE_NO_ERROR No error 0x01 TE_ERROR_CLOSING_SOCKET Error found during closing of socket 0x02 ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-select-all.html
Note This is the name of an index, not of a column; the index must have been explicitly named when created. ndb_select_all prints all rows from an NDB table to stdout. Usage ndb_select_all -c connection_string tbl_name -d db_name [> file_name] ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-backups.html
Create any databases on the replica cluster that are present on the source cluster and that are to be replicated. Important A CREATE DATABASE (or CREATE SCHEMA) statement corresponding to each database to be replicated must be executed on each SQL ... This section discusses making backups and restoring from them using NDB Cluster ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-general.html
All NDB tables being replicated must be created using a MySQL server and client. Tables and other database objects created using the NDB API (with, for example, Dictionary::createTable()) are not visible to a MySQL server and so are not replicated.
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-issues.html
Note Every NDB table is implicitly partitioned by key when it is created. This section discusses known problems or issues when using replication with NDB Cluster. A loss of connection can occur either between the source cluster SQL node and the ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-multi-source.html
When setting up circular replication, it is possible to initialize the replica cluster by using the management client START BACKUP command on one NDB Cluster to create a backup and then applying this backup on another NDB Cluster using ndb_restore.
https://dev.mysql.com/doc/refman/8.4/en/no-matching-rows.html
If you still cannot figure out what is wrong, create a minimal test that can be run with mysql test < query.sql that shows your problems. You can create a test file by dumping the tables with mysqldump --quick db_name tbl_name_1 ... Verify that the ... If you have a complicated query that uses many tables but that returns no rows, you should use the following procedure to find out what is wrong: Test the query with EXPLAIN to check whether you can find something that is obviously ...
https://dev.mysql.com/doc/refman/8.4/en/online-ddl-memory-management.html
Online DDL operations that create or rebuild secondary indexes allocate temporary buffers during different phases of index creation. The setting applies to buffers created by threads executing online DDL operations. Defining an appropriate buffer ...The innodb_ddl_buffer_size variable defines the maximum buffer size for online DDL ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-linear-hash.html
MySQL also supports linear hashing, which differs from regular hashing in that linear hashing utilizes a linear powers-of-two algorithm whereas regular hashing employs the modulus of the hashing function's value. We call this value V; it can be ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-management-hash-key.html
Tables which are partitioned by hash or by key are very similar to one another with regard to making changes in a partitioning setup, and both differ in a number of ways from tables which have been partitioned by range or list. For that reason, ...