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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-waiter.html
Options that can be used with ndb_waiter are shown in the following table. ndb_waiter repeatedly (each 100 milliseconds) prints out the status of all cluster data nodes until either the cluster reaches a given status or the --timeout limit is ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-shm-definition.html
See Section 25.4.3.14, “Configuring NDB Cluster Send Buffer Parameters”, and Section 25.6.16.65, “The ndbinfo transporters Table”, for more information. Communications between NDB cluster nodes are normally handled using TCP/IP. The shared ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-server-side-help.html
The proper operation of this command requires that the help tables in the mysql database be initialized with help topic information (see Section 7.1.17, “Server-Side Help Support”). To make a more specific request, please type 'help <item>', ...
https://dev.mysql.com/doc/refman/8.0/en/not-enough-file-handles.html
To tell mysqld to keep open fewer files at a time, you can make the table cache smaller by reducing the value of the table_open_cache system variable (the default value is 64). This may not entirely prevent running out of file descriptors because in ... If you get ERROR 'file_name' not found (errno: 23), Can't open file: file_name (errno: 24), or any other error with errno 23 or errno 24 from MySQL, it means that you have not allocated enough file descriptors for the MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-transaction-management.html
When rows are modified or deleted within a long-running transaction, other transactions using the READ COMMITTED and REPEATABLE READ isolation levels have to do more work to reconstruct the older data if they read those same rows. When a ... To ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-build-configuration.html
If you install MySQL over a previous installation that was configured without the Performance Schema (or with an older version of the Performance Schema that has missing or out-of-date tables). One indication of this issue is the presence of ...It ...
https://dev.mysql.com/doc/refman/8.0/en/regexp.html
For example, it can be specified as a string expression or table column. This section discusses the functions and operators available for regular expression matching and illustrates, with examples, some of the special characters and constructs that ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-sql-mode.html
If you are replicating partitioned tables, using different SQL modes on the source and the replica is likely to cause issues. At a minimum, this is likely to cause the distribution of data among partitions to be different in the source's and ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-transaction-inconsistencies.html
A transaction which updates non-transactional tables has applied some but not all of its changes. STOP REPLICA when the ongoing transaction updates transactional tables only, in which case it is rolled back and STOP REPLICA stops immediately. The ...
https://dev.mysql.com/doc/refman/8.0/en/replication-semisync.html
Blocking also occurs after rollbacks that are written to the binary log, which occurs when a transaction that modifies nontransactional tables is rolled back. The rolled-back transaction is logged even though it has no effect for transactional ...