Package com.linkedin.davinci.blobtransfer.client

Class NettyFileTransferClient

java.lang.Object

com.linkedin.davinci.blobtransfer.client.NettyFileTransferClient

public class NettyFileTransferClient
extends Object

Constructor Summary

Constructors

Constructor	Description
NettyFileTransferClient(int serverPort, String baseDir, StorageMetadataService storageMetadataService, int peersConnectivityFreshnessInSeconds)

Method Summary

Modifier and Type	Method	Description
void	close()
CompletionStage<InputStream>	get(String host, String storeName, int version, int partition, BlobTransferUtils.BlobTransferTableFormat requestedTableFormat)
Set<String>	getConnectableHosts(HashSet<String> discoveredHosts, String storeName, int version, int partition)	A method to get the connectable hosts for the given store, version, and partition This method is only used for checking connectivity to the hosts.
void	purgeStaleConnectivityRecords(VeniceConcurrentHashMap<String,Long> hostsToTimestamp)	Check the freshness of the connectivity records and purge the stale records

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NettyFileTransferClient

public NettyFileTransferClient(int serverPort,
 String baseDir,
 StorageMetadataService storageMetadataService,
 int peersConnectivityFreshnessInSeconds)

Method Details

getConnectableHosts

public Set<String> getConnectableHosts(HashSet<String> discoveredHosts,
 String storeName,
 int version,
 int partition)

A method to get the connectable hosts for the given store, version, and partition This method is only used for checking connectivity to the hosts. Channel is closed after checking.

Parameters:

discoveredHosts - the list of discovered hosts for the store, version, and partition, but not necessarily connectable

storeName - the store name

version - the version

partition - the partition

Returns:

the list of connectable hosts

purgeStaleConnectivityRecords

public void purgeStaleConnectivityRecords(VeniceConcurrentHashMap<String,Long> hostsToTimestamp)

Check the freshness of the connectivity records and purge the stale records

Parameters:

hostsToTimestamp - the map of hosts to the timestamp of the last connection attempt

get

public CompletionStage<InputStream> get(String host,
 String storeName,
 int version,
 int partition,
 BlobTransferUtils.BlobTransferTableFormat requestedTableFormat)

close

public void close()