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https://dev.mysql.com/doc/refman/8.0/en/performance-schema-host-cache-table.html
FIRST_SEEN The timestamp of the first connection attempt seen from the client in the IP column. LAST_SEEN The timestamp of the most recent connection attempt seen from the client in the IP column. FIRST_ERROR_SEEN The timestamp of the first error ...
https://dev.mysql.com/doc/refman/8.0/en/persisted-system-variables.html
The MySQL server maintains system variables that configure its operation. A system variable can have a global value that affects server operation as a whole, a session value that affects the current session, or both. Many system variables are ...
https://dev.mysql.com/doc/refman/8.0/en/built-in-function-reference.html
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 14.2, “Loadable Function Reference”. ->> Return value ...
https://dev.mysql.com/doc/refman/8.0/en/faqs-replication.html
When the replication SQL thread executes an event read from the source, it modifies its own time to the event timestamp. (This is why TIMESTAMP is well replicated.) In the Time column in the output of SHOW PROCESSLIST, the number of seconds ... In ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-metrics-table.html
The INNODB_METRICS table provides a wide variety of InnoDB performance information, complementing the specific focus areas of the Performance Schema tables for InnoDB. With simple queries, you can check the overall health of the system. With more ...
https://dev.mysql.com/doc/refman/8.0/en/load-data.html
The file can be read from the server host or the client host, depending on whether the LOCAL modifier is given. INTO Statement”.) To write data from a table to a file, use SELECT ... To read the file back into a table, use LOAD DATA. The syntax of ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-event-reports.html
The format used in a log message generated by NDB Cluster (as of NDB 8.0.26) is as shown here: timestamp [node_type] level -- Node node_id: message Each line in the log, or log message, contains the following information: A timestamp in YYYY-MM-DD ... In this section, we discuss the types of event logs provided by NDB Cluster, and the types of events that are ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-option-tables.html
Ndb_conflict_fn_max: Number of times that NDB replication conflict resolution based on "greater timestamp wins" has been applied to update and delete operations. Ndb_conflict_fn_max_ins: Number of times that NDB replication conflict resolution based ... The following list includes command-line options, system variables, and status variables applicable within mysqld when it is running as an SQL node in an NDB ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-options-variables.html
Ndb_conflict_fn_max Used in NDB Cluster Replication conflict resolution, this variable shows the number of times that a row was not applied on the current SQL node due to “greatest timestamp wins” conflict resolution since the last time that ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlbinlog-hexdump.html
For more information about binary log format, see MySQL Internals: The Binary Log. In the example shown, '9d fc 5c 43' is the representation of '051024 17:24:13' in hexadecimal. Master ID: The server ID of the replication source server that created ...