How do I sync master and Slave?

How do I sync master and Slave?

The process of master-slave synchronization in MySQL is as follows:

1. The master server verifies the connection.
2. The master server opens a thread for the slave server.
3. The slave server notifies the master server of the master server log’s offset bit.

What is master slave approach?

A master-slave approach is presented where a mobile camera (the slave) can match any object detected by a fixed camera (the master). Features extracted by the master camera are used to detect the object of interest in the slave camera without the use of any training data.

What is a slave DB?

Replication Overview. Master-slave replication enables data from one database server (the master) to be replicated to one or more other database servers (the slaves). In this environment, all writes and updates must take place on the master server. Reads, however, may take place on one or more slaves.

What is the characteristics of master slave flip-flop?

The master flip-flop is triggered by the external clock pulse train while the slave is activated at its inversion i.e. if the master is positive edge-triggered, then the slave is negative-edge triggered and vice-versa.

Which is the default database in Drupal 7?

The “default” target is the master SQL server. One or more “slave” targets may then be defined (note that in some situations, “slave” is the only valid alternative target, e.g. in static queries ). Queries that are flagged to try and use a slave server if available will attempt to access the “slave” target.

What is the primary use of targets in Drupal 7?

The primary use of targets is for master/slave replication. The “default” target is the master SQL server. One or more “slave” targets may then be defined (note that in some situations, “slave” is the only valid alternative target, e.g. in static queries ).

What is the default connection key for Drupal?

The connection key must be unique for a given site, and there must always be a connection of “default” that will be the primary Drupal database. On most sites, it will be the only connection defined. A given connection key must have one or more targets.