MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0
The Performance Schema table described here is available as of MySQL 8.0.17.
The clone_progress table shows progress
information for the current or last executed cloning operation
only.
The stages of a cloning operation include DROP
DATA, FILE COPY,
PAGE_COPY, REDO_COPY,
FILE_SYNC, RESTART, and
RECOVERY. A cloning operation produces a
record for each stage. The table therefore only ever contains
seven rows of data, or is empty.
The clone_progress table has these columns:
ID
A unique cloning operation identifier in the current MySQL server instance.
STAGE
The name of the current cloning stage. Stages include
DROP DATA, FILE
COPY, PAGE_COPY,
REDO_COPY,
FILE_SYNC, RESTART,
and RECOVERY.
STATE
The current state of the cloning stage. States include
Not Started, In
Progress, and Completed.
BEGIN_TIME
A timestamp in '
format that shows when the cloning stage started. Reports
NULL if the stage has not started.
YYYY-MM-DD
hh:mm:ss[.fraction]'
END_TIME
A timestamp in '
format that shows when the cloning stage finished. Reports
NULL if the stage has not ended.
YYYY-MM-DD
hh:mm:ss[.fraction]'
THREADS
The number of concurrent threads used in the stage.
ESTIMATE
The estimated amount of data for the current stage, in bytes.
DATA
The amount of data transferred in current state, in bytes.
NETWORK
The amount of network data transferred in the current state, in bytes.
DATA_SPEED
The current actual speed of data transfer, in bytes per
second. This value may differ from the requested maximum
data transfer rate defined by
clone_max_data_bandwidth.
NETWORK_SPEED
The current speed of network transfer in bytes per second.
The clone_progress table is read-only. DDL,
including TRUNCATE TABLE, is
not permitted.