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Waiting for master to send event

Short Description

The thread has connected to the source and is waiting for binary log events to arrive.

Detailed Description

From MySQL 8.0.26: Waiting for source to send event

The thread has connected to the source and is waiting for binary log events to arrive. This can last for a long time if the source is idle.

If the wait lasts for [replica_net_timeout](https://dev.mysql.com/doc/refman/8.0/en/replication-options-replica.html#sysvar_replica_net_timeout) or [slave_net_timeout](https://dev.mysql.com/doc/refman/8.0/en/replication-options-replica.html#sysvar_slave_net_timeout) seconds, a timeout occurs. At that point, the thread considers the connection to be broken and makes an attempt to reconnect.

How to reduce this wait

Not available yet. Contributions welcome.

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