Package com.aerospike.client.cluster

Class Node

java.lang.Object
com.aerospike.client.cluster.Node
All Implemented Interfaces:
Closeable, AutoCloseable
public class Node extends Object implements Closeable
Server node representation. This class manages server node connections and health status.

  • Field Details

  • Constructor Details

    • Node

      public Node(com.aerospike.client.cluster.Cluster cluster, com.aerospike.client.cluster.NodeValidator nv)
      Initialize server node with connection parameters.
      Parameters:
      cluster - collection of active server nodes
      nv - connection parameters

  • Method Details

    • createMinConnections

      public final void createMinConnections()

    • refresh

      public final void refresh(com.aerospike.client.cluster.Peers peers)
      Request current status from server node.

    • signalLogin

      public final void signalLogin()

    • getConnection

      public final com.aerospike.client.cluster.Connection getConnection(int timeoutMillis)
      Get a socket connection from connection pool to the server node.

    • getConnection

      public final com.aerospike.client.cluster.Connection getConnection(int connectTimeout, int socketTimeout)
      Get a socket connection from connection pool to the server node.

    • getConnection

      public final com.aerospike.client.cluster.Connection getConnection(com.aerospike.client.command.SyncCommand cmd, int connectTimeout, int socketTimeout, int timeoutDelay)
      Get a socket connection from connection pool to the server node.

    • putConnection

      public final void putConnection(com.aerospike.client.cluster.Connection conn)
      Put connection back into connection pool.
      Parameters:
      conn - socket connection

    • closeConnection

      public final void closeConnection(com.aerospike.client.cluster.Connection conn)
      Close pooled connection on error and decrement connection count.

    • closeConnectionOnError

      public final void closeConnectionOnError(com.aerospike.client.cluster.Connection conn)
      Close any connection on error.

    • closeIdleConnection

      public final void closeIdleConnection(com.aerospike.client.cluster.Connection conn)
      Close connection without incrementing error count.

    • getConnectionStats

      public final ConnectionStats getConnectionStats()

    • getAsyncConnection

      public final com.aerospike.client.async.AsyncConnection getAsyncConnection(int index, ByteBuffer byteBuffer)

    • reserveAsyncConnectionSlot

      public final boolean reserveAsyncConnectionSlot(int index)

    • connectionOpened

      public final void connectionOpened(int index)

    • putAsyncConnection

      public final boolean putAsyncConnection(com.aerospike.client.async.AsyncConnection conn, int index)

    • closeAsyncConnection

      public final void closeAsyncConnection(com.aerospike.client.async.AsyncConnection conn, int index)
      Close async connection on error.

    • closeAsyncIdleConnection

      public final void closeAsyncIdleConnection(com.aerospike.client.async.AsyncConnection conn, int index)
      Close async connection without incrementing error count.

    • decrAsyncConnection

      public final void decrAsyncConnection(int index)

    • getAsyncPool

      public final Node.AsyncPool getAsyncPool(int index)

    • balanceAsyncConnections

      public final void balanceAsyncConnections(EventLoop eventLoop)

    • getAsyncConnectionStats

      public final ConnectionStats getAsyncConnectionStats()

    • enableMetrics

      public final void enableMetrics(MetricsPolicy policy)

    • getMetrics

      public final NodeMetrics getMetrics()

    • addLatency

      public final void addLatency(LatencyType type, long elapsed)
      Add elapsed time in nanoseconds to latency buckets corresponding to latency type.

    • incrErrorRate

      public final void incrErrorRate()

    • resetErrorRate

      public final void resetErrorRate()

    • errorRateWithinLimit

      public final boolean errorRateWithinLimit()

    • validateErrorCount

      public final void validateErrorCount()

    • addError

      public void addError()
      Increment transaction error count. If the error is retryable, multiple errors per transaction may occur.

    • addTimeout

      public void addTimeout()
      Increment transaction timeout count. If the timeout is retryable (ie socketTimeout), multiple timeouts per transaction may occur.

    • getErrorCount

      public long getErrorCount()
      Return transaction error count. The value is cumulative and not reset per metrics interval.

    • getTimeoutCount

      public long getTimeoutCount()
      Return transaction timeout count. The value is cumulative and not reset per metrics interval.

    • getHost

      public final Host getHost()
      Return server node IP address and port.

    • isActive

      public final boolean isActive()
      Return whether node is currently active.

    • getName

      public final String getName()
      Return server node name.

    • getAddress

      public final InetSocketAddress getAddress()
      Return node IP address.

    • getSessionToken

      public final byte[] getSessionToken()
      Return node session token.

    • getPeersGeneration

      public final int getPeersGeneration()
      Return current generation of cluster peers.

    • getPartitionGeneration

      public final int getPartitionGeneration()
      Return current generation of partition maps.

    • getRebalanceGeneration

      public final int getRebalanceGeneration()
      Return current generation of racks.

    • hasRack

      public final boolean hasRack(String namespace, int rackId)
      Return if this node has the same rack as the client for the given namespace.

    • hasQueryShow

      public final boolean hasQueryShow()

    • hasBatchAny

      public final boolean hasBatchAny()

    • hasPartitionQuery

      public final boolean hasPartitionQuery()

    • toString

      public final String toString()
      Does server support partition scans.
      Overrides:
      toString in class Object

    • hashCode

      public final int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public final boolean equals(Object obj)
      Overrides:
      equals in class Object

    • close

      public final void close()
      Close all socket connections.
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable

    • closeConnections

      public final void closeConnections(AtomicInteger eventLoopCount, int index)
      Close all node socket connections from event loop. Must be called from event loop thread.

    • closeAsyncConnections

      public final void closeAsyncConnections(int index)
      Close asynchronous connections. Must be called from event loop thread.

    • closeSyncConnections

      public final void closeSyncConnections()
      Close synchronous connections.