wsrep_flow_control_paused

Overview

Fraction of time during which replication was paused by Flow Control.

See also: Status Variables in 10.6 ES, in 10.6 CS, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS

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 shows the fraction of time since the node was started or the FLUSH STATUS statement was issued during which the node was paused due to Flow Control. The closer the value is to 1.0 the greater the percentage of time the node has spent with replication paused.

EXAMPLES

Use the SHOW STATUS statement to view the fraction of time the node has spent paused due to Flow Control:

SHOW STATUS LIKE "wsrep_flow_control_paused";
+---------------------------+----------+
| Variable_name             | Value    |
+---------------------------+----------+
| wsrep_flow_control_paused | 0.025121 |
+---------------------------+----------+

CHANGE HISTORY

Release Series

History

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