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https://dev.mysql.com/doc/refman/8.4/en/telemetry-metrics-meter-metrics.html
errors_accept Connection_errors_accept ASYNC COUNTER The number of errors that occurred during calls to accept() on the listening port. errors_internal Connection_errors_internal ASYNC COUNTER The number of connections refused due to internal errors ... The following server metrics are registered by default: mysql.stats Metrics mysql.stats.com Metrics mysql.stats.connection Metrics mysql.perf_schema Metrics mysql.stats.handler Metrics mysql.stats.myisam Metrics mysql.stats.ssl Metrics mysql.inno Metrics mysql.inno.buffer_pool Metrics mysql.inno.data Metrics mysql.x Metrics mysql.x.stmt Metrics The maximum number of metric instruments which can be created is set by ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-client-commands.html
These are not recognized by the client, and are rejected with an error. To decrease the possibility of errors in reading and entering MySQL Cluster Manager commands, we recommend avoiding the use of space characters whenever possible. These commands ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-configuration-commands.html
This section covers the commands used in the MySQL Cluster Manager for getting and setting values of various types used in MySQL NDB Cluster configuration. We begin with a discussion of what we mean by the term “configuration attribute”, and ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-set-local-infile-handler.html
void mysql_set_local_infile_handler(MYSQL *mysql, int (*local_infile_init)(void **, const char *, void *), int (*local_infile_read)(void *, char *, unsigned int), void (*local_infile_end)(void *), int (*local_infile_error)(void *, char*, unsigned ...It enables application programs to exert control over local (client-side) data file ...
https://dev.mysql.com/doc/c-api/8.4/en/mysql-stmt-errno.html
unsigned int mysql_stmt_errno(MYSQL_STMT *stmt) Description For the statement specified by stmt, mysql_stmt_errno() returns the error code for the most recently invoked statement API function that can succeed or fail. Client error message numbers ...
https://dev.mysql.com/doc/workbench/en/workbench-reporting-bugs.html
The error messages, which includes text sent to stdout and the GUI. Log Levels There are six different log levels, with increasing levels of verbosity: error, warning, info, debug1, debug2, and debug3. The enabled error log levels can be configured ... The following is a list of tips and information that is helpful for reporting a MySQL Workbench ...
https://dev.mysql.com/doc/internals/en/guided-tour-skeleton.html
We threw away the error checks, the side paths, the optional code, and the variables. Walking Through The Server Code: /sql/sql_parse.cc handle_one_connection(THD *thd) { init_sql_alloc(&thd->mem_root, MEM_ROOT_BLOCK_SIZE, MEM_ROOT_PREALLOC); while ... And now we're going to walk through something harder, namely the ...
https://dev.mysql.com/doc/ndbapi/en/mccj-clusterj-clusterjtableexception.html
This includes "Table Not Found" with no associated errors, as when Cluster/J attempts to get metadata for a named table, but the named table is not defined in NDB, and no other errors are reported. It also includes "Table Not Found" with some ...
https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-16.html
If connection attributes are not specified in a valid way, an error occurs and the connection attempt fails. (WL #12495) X DevAPI for C Notes The signatures for several X DevAPI for C functions have been changed to enable better error information to ...Connector/C++ now supports all Unicode character sets for older servers, including utf8mb4, utf16, utf16le, utf32, and ...
https://dev.mysql.com/doc/relnotes/connector-python/en/news-8-0-14.html
(WL #12607) The count() method's error message was unclear when the table or collection was missing. (Bug #28992304) Improved error handling for classic protocol connections using the X protocol port. (Bug #28962337, WL #12240) Attempting to connect ... Functionality Added or Changed Bugs Fixed Functionality Added or Changed A default schema name can now be defined from the connection ...