Where do I find the status variables in MySQL?
The MySQL server maintains many status variables that provide information about its operation. You can view these variables and their values by using the SHOW [GLOBAL | SESSION] STATUS statement (see Section 13.7.5.35, “SHOW STATUS Syntax”).
Is there a way to reset global status?
You cannot reset GLOBAL STATUS counters except by restarting. Your way to put a patch as you said until you know which connection is leaking prepared statements is to kill your connections regularly. Once the connection or connection is dropped, its prepared statements should disappear and will give you that margin.
Which is the Optional global keyword in MySQL?
The optional GLOBAL keyword aggregates the values over all connections, and SESSION shows the values for the current connection. Many status variables are reset to 0 by the FLUSH STATUS statement. This section provides a description of each status variable.
Where do I find the global and session variables?
You can view these variables and their values by using the SHOW [GLOBAL | SESSION] STATUS statement (see Section 13.7.5.35, “SHOW STATUS Syntax”). The optional GLOBAL keyword aggregates the values over all connections, and SESSION shows the values for the current connection.
How to check the number of temporary tables created by the server?
The number of internal on-disk temporary tables created by the server while executing statements. You can compare the number of internal on-disk temporary tables created to the total number of internal temporary tables created by comparing Created_tmp_disk_tables and Created_tmp_tables values.
What does COM _ stmt _ reprepare mean in MySQL?
Com_stmt_reprepare indicates the number of times statements were automatically reprepared by the server after metadata changes to tables or views referred to by the statement. A reprepare operation increments Com_stmt_reprepare, and also Com_stmt_prepare .
Which is deprecated status variable in MySQL 8.0.18?
Com_change_repl_filter indicates the number of CHANGE REPLICATION FILTER statements executed. Whether the client connection uses compression in the client/server protocol. As of MySQL 8.0.18, this status variable is deprecated; expect it to be removed in a future version of MySQL. See Configuring Legacy Connection Compression .
Why is aborted _ connects not visible in MySQL 5.7.3?
For additional connection-related information, check the Connection_errors_ xxx status variables and the host_cache table. As of MySQL 5.7.3, Aborted_connects is not visible in the embedded server because for that server it is not updated and is not meaningful.
What does CoM _ change REPL filter mean in MySQL?
Com_change_repl_filter indicates the number of CHANGE REPLICATION FILTER statements executed. Whether the client connection uses compression in the client/server protocol. These variables provide information about errors that occur during the client connection process.