The Ultimate Guide to High Availability with MariaDB

SET GLOBAL SQL_SLAVE_SKIP_COUNTER

Syntax

SET GLOBAL sql_slave_skip_counter = N

Contents

  1. Syntax
  2. Description
  3. Example
  4. Multiple Replication Domains
  5. See Also

Description

This statement skips the next N events from the primary. This is useful for recovering from replication stops caused by a statement.

If multi-source replication is used, this statement applies to the default connection. It could be necessary to change the value of the default_master_connection system variable.

Note that, if the event is a transaction, the whole transaction will be skipped. With non-transactional engines, an event is always a single statement.

This statement is valid only when the replica threads are not running. Otherwise, it produces an error.

The statement does not automatically restart the replica threads.

Example

SHOW SLAVE STATUS \G
...
SET GLOBAL sql_slave_skip_counter = 1;
START SLAVE;

Multi-source replication:

SET @@default_master_connection = 'master_01';
SET GLOBAL SQL_SLAVE_SKIP_COUNTER = 1;
START SLAVE;

Multiple Replication Domains

sql_slave_skip_counter can't be used to skip transactions on a replica if GTID replication is in use and if gtid_slave_pos contains multiple gtid_domain_id values. In that case, you'll get an error like the following:

ERROR 1966 (HY000): When using parallel replication and GTID with multiple 
 replication domains, @@sql_slave_skip_counter can not be used. Instead, 
 setting @@gtid_slave_pos explicitly can be  used to skip to after a given GTID 
 position.

In order to skip transactions in cases like this, you will have to manually change gtid_slave_pos.

See Also

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