ConnectWithOpts creates pool for instances with addresses addrs.

ConnectWithOpts creates pool for instances with addresses addrs with options opts.

NewConnectorAdapter creates a new ConnectorAdapter object for a pool and with a mode.

The request can be executed on any instance (master or replica).

The instance is read-write mode.

If there is one, otherwise fallback to a read only one (replica).

If there is one, otherwise fallback to a writeable one (master).

The instance is in read-only mode.

The request can only be executed on replica.

The request can only be executed on master.

A connection pool failed to discover mode of the instance.

ConnectionInfo structure for information about connection statuses: - ConnectedNow reports if connection is established at the moment.

Main features: - Return available connection from pool according to round-robin strategy.

ConnectorAdapter allows to use Pooler as Connector.

OptsPool provides additional options (configurable via ConnectWithOpts).

ConnectionHandler provides callbacks for components interested in handling changes of connections in a ConnectionPool.

Pooler is the interface that must be implemented by a connection pool.

Default mode for each request table: Request Default mode ---------- -------------- | call | no default | | eval | no default | | execute | no default | | ping | no default | | insert | RW | | delete | RW | | replace | RW | | update | RW | | upsert | RW | | select | ANY | | get | ANY | */.

Role describes a role of an instance by its mode.