Spec-Zone .ru
спецификации, руководства, описания, API
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Spec-Zone .ru
спецификации, руководства, описания, API
|
The file_instances table lists
all the files seen by the Performance Schema when executing file I/O instrumentation. If a file on disk has
never been opened, it will not be in file_instances.
When a file is deleted from the disk, it is also removed from the file_instances table.
The file_instances table has
these columns:
FILE_NAME
The file name.
EVENT_NAME
The instrument name associated with the file.
OPEN_COUNT
The count of open handles on the file. If a file was opened and then closed, it was opened 1 time,
but OPEN_COUNT will be 0. To list all the files currently opened by the
server, use WHERE OPEN_COUNT > 0.