mysql 参数performance_schema_instrument Mysql备份还原数据库之mysqldump实例及参数详细说明 我们在运营项目的过程中肯定会遇到备份数据库,还原数据库的情况,我们一般用一下两种方式来处理: 1.使用into outfile 和 load data infile导入导出备份数据 这种方法的好处是,导出的数据可以自己规定格式,并且导出的是纯数据,不存...
The performance schema instruments memory usage, and aggregates memory usage statistics detailed by: - type of memory used (various caches, internal buffers, etc) - thread/account/user/host indirectly performing the memory operation. The following aspects are instrumented: - memory sizes used - coun...
WL#5864: PERFORMANCE SCHEMA, instrument TRANSACTIONS Description High Level Architecture Add transaction instrumentation to the Performance Schema. This instrumentation will expose all aspects of transaction operation within the server and the storage engines. The information collected will include quantitative ...
UPDATEperformance_schema.setup_instrumentsSETENABLED='NO'WHERENAME='wait/synch/mutex/mysys/TMPDIR_mutex'; To toggle the state of an instrument,“flip”itsENABLEDvalue: UPDATEperformance_schema.setup_instrumentsSETENABLED=IF(ENABLED='YES','NO','YES')WHERENAME='wait/synch/mutex/mysys/TMPDIR_mutex';...
Instrument names consist of a prefix with a structure defined by the Performance Schema implementation and a suffix defined by the developer implementing the instrument code. The top-level element of an instrument prefix indicates the type of instrument. This element also determines which event timer...
Currently the keyring data are completely non-transparent to SQL users. This worklog aims at adding P_S tables to expose the metadata of the keys (key IDs, key owner), provided that the user has enough privileges to see these. When using an external key vault (OKV) it is useful to ma...