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https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-config-starting.html
NoOfFragmentLogFiles=300 DataDir=path/to/data/node/data/directory MaxNoOfConcurrentOperations=100000 SchedulerSpinTimer=400 SchedulerExecutionTimer=100 RealTimeScheduler=1 # Setting these parameters allows you to take advantage of real-time ...They ...Changes in configuration are also likely to be indicated when changes are made in the platform on which the cluster is run, or in applications that use the NDB Cluster 's ...
https://dev.mysql.com/doc/refman/5.7/en/myisam-check.html
This causes myisamchk to keep going, up through a maximum of 20 errors. To check a MyISAM table, use the following commands: myisamchk tbl_name This finds 99.99% of all errors. It first checks all index entries for errors and then reads through all ...What it cannot find is corruption that involves only the data file (which is very ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-memcached-internals.html
The maximum expire time is defined as INT_MAX32 or 2147483647 seconds (approximately 68 years). You cannot make a covering index for memcached lookups; InnoDB returns an error if you try to define a composite secondary index over both the key and ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-restore.html
--connect-retries Command-Line Format --connect-retries=# Type Integer Default Value 12 Minimum Value 0 Maximum Value 12 Number of times to retry connection before giving up. --connect-retry-delay Command-Line Format --connect-retry-delay=# Type ...
https://dev.mysql.com/doc/refman/5.7/en/signal.html
This warning does not terminate the procedure, so execution continues and p() then signals an error. The following statements cause that error because the named condition is associated with a MySQL error number: DECLARE no_such_table CONDITION FOR ...SIGNAL provides error information to a handler, to an outer portion of the application, or to the ...To retrieve information from the ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-6.html
Previously, it was sometimes the case that increasing the number of LDM threads could lead to index memory exhaustion while large amounts of DataMemory remained available. A system name based on the time the management server was started is ... New ...
https://dev.mysql.com/doc/refman/5.7/en/datetime.html
A DATETIME or TIMESTAMP value can include a trailing fractional seconds part in up to microseconds (6 digits) precision. The fractional part should always be separated from the rest of the time by a decimal point; no other fractional seconds ...This ...
https://dev.mysql.com/doc/refman/5.7/en/using-log-files.html
You can find the queries that take a long time to execute by starting mysqld with the slow query log enabled. You can also try the command EXPLAIN on all SELECT statements that takes a long time to ensure that mysqld is using indexes properly. If ...
https://dev.mysql.com/doc/refman/5.7/en/error-lost-connection.html
If you know that this is happening, you should try increasing net_read_timeout from its default of 30 seconds to 60 seconds or longer, sufficient for the data transfer to complete. In this case, if your connect_timeout value is set to only a few ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-filter-definitions.html
A general event with the general_command.str field set to Query or Execute contains general_sql_command.str set to a value that specifies the type of SQL command: alter_db, alter_db_upgrade, admin_commands, and so forth. WHERE (for tables referenced ...For information about using JSON data in MySQL, see Section 11.5, “The JSON Data ...