Package org.mariadb.jdbc.internal.failover.impl

Class AuroraListener

    • Constructor Detail

      • AuroraListener

        public AuroraListener​(UrlParser urlParser,
                      GlobalStateInfo globalInfo)
               throws SQLException
        Constructor for Aurora. This differ from standard failover because : - we don't know current master, we must check that after initial connection - master can change after he has a failover
        Parameters:
        urlParser - connection information
        globalInfo - server global variables information
        Throws:
        SQLException - when connection string contain host with different cluster

    • Method Detail

      • getClusterDnsSuffix

        public String getClusterDnsSuffix()

      • getClusterHostAddress

        public HostAddress getClusterHostAddress()

      • reconnectFailedConnection

        public void reconnectFailedConnection​(SearchFilter initialSearchFilter)
                               throws SQLException
        Search a valid connection for failed one. A Node can be a master or a replica depending on the cluster state. so search for each host until found all the failed connection. By default, search for the host not down, and recheck the down one after if not found valid connections.
        Specified by:
        reconnectFailedConnection in interface Listener
        Overrides:
        reconnectFailedConnection in class MastersReplicasListener
        Parameters:
        initialSearchFilter - initial search filter
        Throws:
        SQLException - if a connection asked is not found

      • retrieveAllEndpointsAndSet

        public void retrieveAllEndpointsAndSet​(Protocol protocol)
                                throws SQLException
        Retrieves the information necessary to add a new endpoint. Calls the methods that retrieves the instance identifiers and sets urlParser accordingly.
        Parameters:
        protocol - current protocol connected to
        Throws:
        SQLException - if connection error occur

      • searchByStartName

        public HostAddress searchByStartName​(Protocol secondaryProtocol,
                                     List<HostAddress> loopAddress)
        Looks for the current master/writer instance via the secondary protocol if it is found within 3 attempts. Should it not be able to connect, the host is blacklisted and null is returned. Otherwise, it will open a new connection to the cluster endpoint and retrieve the data from there.
        Parameters:
        secondaryProtocol - the current secondary protocol
        loopAddress - list of possible hosts
        Returns:
        the probable master address or null if not found