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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndb-innodb-engines.html
The NDB storage engine is implemented using a distributed, shared-nothing architecture, which causes it to behave differently from InnoDB in a number of ways. For those unaccustomed to working with NDB, unexpected behaviors can arise due to its ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-config-values.html
You can obtain output that is more specific, more detailed, or both by issuing the proper queries. The config_values table provides information about the current state of node configuration parameter values. Each row in the table corresponds to the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-membership.html
Note Both management nodes and API nodes are eligible to become arbitrators. The membership table describes the view that each data node has of all the others in the cluster, including node group membership, president node, arbitrator, arbitrator ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-operations-per-fragment.html
The value shown by tot_frag_scans includes both full scans (that examine every row) and scans of subsets. The operations_per_fragment table provides information about the operations performed on individual fragments and fragment replicas, as well ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-resources.html
This is approximately 2 MB per thread plus a 1 MB buffer in both directions for all threads that can communicate. This table provides information about data node resource availability and usage. The resources table contains the following columns: ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-threads.html
The threads table provides information about threads running in the NDB kernel.
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-nodes-groups.html
However, if both nodes from a single node group fail, the combination consisting of the remaining two nodes in the other node group is not sufficient. This section discusses the manner in which NDB Cluster divides and duplicates data for storage. A ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-example.html
Wait until both of the new data nodes have started before proceeding with the next step. In this section we provide a detailed example illustrating how to add new NDB Cluster data nodes online, starting with an NDB Cluster having 2 data nodes in a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-online-add-node-remarks.html
Table reorganization of both in-memory and Disk Data tables is supported. This section provides general information about the behavior of and current limitations in adding NDB Cluster nodes online. The ability to add new nodes online includes a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-overview-requirements.html
Increasing the number of CPUs, using faster CPUs, or both, on the computers hosting data nodes can generally be expected to enhance the performance of NDB Cluster. One of the strengths of NDB Cluster is that it can be run on commodity hardware and ...