wsrep_flow_control_sent

USAGE

DETAILS

Flow Control throttles replication to allow slow nodes to catch up with the cluster. This is done to prevent the nodes from falling too far behind the cluster in applying transactions.

This status variable provides the number of Flow Control pause (FC_PAUSE) events since startup that the node has sent to the cluster.

Note

The FLUSH STATUS statement does not reset the counter for this status variable.

SYNONYMS

SCHEMA

PARAMETERS

SKYSQL

PRIVILEGES

EXAMPLES

Use the SHOW STATUS statement to view the current number of pause events triggered by Flow Control:

SHOW STATUS LIKE "wsrep_flow_control_sent";

+-------------------------+-------+
| Variable_name           | Value |
+-------------------------+-------+
| wsrep_flow_control_sent |    2  |
+-------------------------+-------+

ERROR HANDLING

FEATURE INTERACTION

RESPONSES

DIAGNOSIS

ISO 9075:2016

CHANGE HISTORY

Release Series

History

11.4 Enterprise

  • Not present.

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

EXTERNAL REFERENCES