Documentation Home
MySQL 5.7 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 38.0Mb
PDF (A4) - 38.0Mb
PDF (RPM) - 37.4Mb
HTML Download (TGZ) - 10.3Mb
HTML Download (Zip) - 10.3Mb
HTML Download (RPM) - 8.9Mb
Man Pages (TGZ) - 216.7Kb
Man Pages (Zip) - 329.5Kb
Info (Gzip) - 3.5Mb
Info (Zip) - 3.5Mb
Excerpts from this Manual

MySQL 5.7 Reference Manual  /  ...  /  The replication_applier_status_by_coordinator Table

25.11.11.5 The replication_applier_status_by_coordinator Table

For a multi-threaded slave, the slave uses multiple worker threads and a coordinator thread to manage them, and this table shows the status of the coordinator thread. For a single-threaded slave, this table is empty. For a multi-threaded slave, the replication_applier_status_by_worker table shows the status of the worker threads.

The replication_applier_status_by_coordinator table has these columns:

  • CHANNEL_NAME

    The replication channel which this row is displaying. There is always a default replication channel, and more replication channels can be added. See Section 16.2.3, “Replication Channels” for more information.

  • THREAD_ID

    The SQL/coordinator thread ID.

  • SERVICE_STATE

    ON (thread exists and is active or idle) or OFF (thread no longer exists).

  • LAST_ERROR_NUMBER, LAST_ERROR_MESSAGE

    The error number and error message of the most recent error that caused the SQL/coordinator thread to stop. An error number of 0 and message which is an empty string means no error. If the LAST_ERROR_MESSAGE value is not empty, the error values also appear in the slave's error log.

    Issuing RESET MASTER or RESET SLAVE resets the values shown in these columns.

    All error codes and messages displayed in the LAST_ERROR_NUMBER and LAST_ERROR_MESSAGE columns correspond to error values listed in Section B.3, “Server Error Codes and Messages”.

  • LAST_ERROR_TIMESTAMP

    A timestamp in YYMMDD HH:MM:SS format that shows when the most recent SQL/coordinator error occurred.

TRUNCATE TABLE is not permitted for the replication_applier_status_by_coordinator table.

The following table shows the correspondence between replication_applier_status_by_coordinator columns and SHOW SLAVE STATUS columns.

replication_applier_status_by_coordinator ColumnSHOW SLAVE STATUS Column
THREAD_IDNone
SERVICE_STATESlave_SQL_Running
LAST_ERROR_NUMBERLast_SQL_Errno
LAST_ERROR_MESSAGELast_SQL_Error
LAST_ERROR_TIMESTAMPLast_SQL_Error_Timestamp

User Comments
Sign Up Login You must be logged in to post a comment.