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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-system-variables.html
performance_schema_accounts_size Command-Line Format --performance-schema-accounts-size=# System Variable performance_schema_accounts_size Scope Global Dynamic No Type Integer Default Value -1 (signifies autoscaling; do not assign this literal ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-max-allowed-packet.html
max_allowed_packet sets an upper limit on the size of any single message between the MySQL server and clients, including replicas. If you are replicating large column values (such as might be found in TEXT or BLOB columns) and max_allowed_packet is ...Row-based replication sends all columns and column values for updated rows from the source to the replica, including values of columns that were not actually changed by the ...
https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
Example: Suppose that the block size for a given variable is given as 4096, and you set the value of the variable to 100000 (we assume that the variable's maximum value is greater than this number). In some cases, the stated maximum for a variable ... The MySQL server maintains many system variables that affect its ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html
For example, you might change the port that memcached listens on, reduce the maximum number of simultaneous connections, change the maximum memory size for a key-value pair, or enable debugging messages for the error log. System variables that are ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-config.html
ndb_config can also provide an offline dump of all configuration parameters which can be used, along with their default, maximum, and minimum values and other information. --config_from_node=# Command-Line Format --config-from-node=# Type Numeric ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-replication-conflict-resolution.html
Some types of conflict resolution supported by NDB Cluster (NDB$OLD(), NDB$MAX(), NDB$MAX_DELETE_WIN()) implement this user-defined column as a “timestamp” column (although its type cannot be TIMESTAMP, as explained later in this section). Note ... Requirements Source Column Control Conflict Resolution Control Conflict Resolution Functions Conflict Resolution Exceptions Table Conflict Detection Status Variables Examples When using a replication setup involving multiple sources (including circular replication), it is possible that different sources may try to update the same row on the replica with different ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-desc.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/replication-options-binary-log.html
--binlog-row-event-max-size=N Command-Line Format --binlog-row-event-max-size=# Type Integer Default Value 8192 Minimum Value 256 Maximum Value (64-bit platforms) 18446744073709551615 Maximum Value (32-bit platforms) 4294967295 Unit bytes Specify ...
https://dev.mysql.com/doc/refman/5.7/en/replication-options-replica.html
--master-retry-count=count Command-Line Format --master-retry-count=# Deprecated Yes Type Integer Default Value 86400 Minimum Value 0 Maximum Value (64-bit platforms) 18446744073709551615 Maximum Value (32-bit platforms) 4294967295 The number of ...
https://dev.mysql.com/doc/refman/5.7/en/myisamchk-table-info.html
Max datafile length How long the table data file can become, in bytes. Max keyfile length How long the table index file can become, in bytes. When a table has just been reorganized with myisamchk, the values are very high (very near theoretical ...