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com.datastax.spark.connector.cql
LocalNodeFirstLoadBalancingPolicy
Companion class LocalNodeFirstLoadBalancingPolicy
object LocalNodeFirstLoadBalancingPolicy
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- val LoadBalancingShuffleNodes: DriverOption
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def
determineDataCenter(contactPoints: Set[InetSocketAddress], allNodes: Set[Node]): String
Returns a common data center name of the given contact points.
Returns a common data center name of the given contact points.
For each contact point there must be a Node in
allNodes
collection in order to determine its data center name. If contact points belong to more than a single data center, an IllegalArgumentException is thrown. -
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isLocalHost(node: Node): Boolean
Returns true if given host is local host
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def
sortNodesByStatusAndProximity(dc: String, nodesToSort: Set[Node]): Seq[Node]
Sorts nodes in the following order: 1.
Sorts nodes in the following order: 1. local node in a given DC 2. live nodes in a given DC 3. the rest of nodes in a given DC
Nodes within a group are ordered randomly. Nodes from other DCs are not included.
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(Since version ) see corresponding Javadoc for more information.