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https://dev.mysql.com/doc/refman/8.4/en/lock-tables.html
(For additional information about the interaction between table locking and transactions, see Interaction of Table Locking and Transactions.) If the connection for a client session terminates, whether normally or abnormally, the server implicitly ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-install-first-start.html
Note The IP address shown for a given NDB Cluster SQL or other API node in the output of SHOW is the address used by the SQL or API node to connect to the cluster data nodes, and not to any management node. Starting the cluster is not very ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-logging-management-commands.html
Table 25.26 Cluster log categories, with default threshold setting Category Default threshold (All data nodes) STARTUP 7 SHUTDOWN 7 STATISTICS 7 CHECKPOINT 7 NODERESTART 7 CONNECTION 8 ERROR 15 INFO 7 BACKUP 15 CONGESTION 7 SCHEMA 7 The STATISTICS ... ndb_mgm supports a number of management commands related to the cluster log and node ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-arbitrator-validity-detail.html
arb_connected shows whether the current node is connected to the arbitrator. The arbitrator_validity_detail table shows the view that each data node in the cluster has of the arbitrator. All nodes should show the same arbitrator and arb_ticket ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-config-nodes.html
This table does not indicate whether a given node is actually running, or whether it is currently connected to the cluster. Information about nodes connected to an NDB Cluster can be obtained from the nodes and processes table. The config_nodes ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-server-locks.html
The server_locks table is similar in structure to the cluster_locks table, and provides a subset of the information found in the latter table, but which is specific to the SQL node (MySQL server) where it resides. (The cluster_locks table provides ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-server-operations.html
The state column can have any one of the values ABORT_QUEUED, ABORT_STOPPED, COMMITTED, COMMIT_QUEUED, COMMIT_STOPPED, COPY_CLOSE_STOPPED, COPY_FIRST_STOPPED, COPY_STOPPED, COPY_TUPKEY, IDLE, LOG_ABORT_QUEUED, LOG_COMMIT_QUEUED, ... The ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-params-mgmd.html
HeartbeatIntervalMgmdMgmd: Time between management-node-to-management-node heartbeats; connection between management nodes is considered lost after 3 missed heartbeats. RequireTls: Client connection must authenticate with TLS before being used ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-replication-preparation.html
To provide replication backup capability, you also need to add an --ndb-connectstring option to the replica's my.cnf file prior to starting the replication process. ndb-connectstring=management_host[:port] In the event that you are not using NDB ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-tde.html
2022-08-22 16:17:58 [ndbd] INFO -- Angel connected to '127.0.0.1:1186' 2022-08-22 16:17:58 [ndbd] INFO -- Angel allocated nodeid: 5 --filesystem-password can accept the password form a file, tty, or stdin; --filesystem-password-from-stdin accepts ...