org.apache.iotdb.db.sync.sender.transfer

接口 ISyncClient

所有已知实现类:

SyncClient

public interface ISyncClient

This interface is used to realize the data transmission part of synchronization task, and is also the most important part of synchronization task. By screening out all transmission files to be synchronized in SyncFileManager, these files are synchronized to the receiving end to complete the synchronization task.

方法概要

限定符和类型	方法和说明
void	confirmIdentity() Confirm identity, the receiver will check whether the sender has synchronization privileges.
void	establishConnection(String serverIp, int serverPort) Establish a connection to receiver end.
void	init()
void	startMonitor() Start monitor thread, which monitor sync status.
void	startTimedTask() Start sync task in a certain time.
void	stop() Stop sync process
void	sync() Execute a sync task for a data directory.
void	syncAll() Execute a sync task for all data directory.
void	syncDataFilesInOneGroup(String sgName, Long vgId, Long timeRangeId, Set<File> toBeSyncFiles) For new valid files in a storage group, sync them to receiver side and load these data in receiver.
void	syncDeletedFilesNameInOneGroup(String sgName, Long vgId, Long timeRangeId, Set<File> deletedFilesName) For deleted files in a storage group, sync them to receiver side and load these files in receiver.
void	syncSchema() Sync schema file to receiver before all data to be synced.
void	verifySingleton() Verify whether the client lock file is locked or not, ensuring that only one client is running.

方法详细资料

init

void init()

verifySingleton

void verifySingleton()
              throws IOException

Verify whether the client lock file is locked or not, ensuring that only one client is running.

抛出:

IOException

startMonitor

void startMonitor()

Start monitor thread, which monitor sync status.

startTimedTask

void startTimedTask()

Start sync task in a certain time.

establishConnection

void establishConnection(String serverIp,
                         int serverPort)
                  throws SyncConnectionException

Establish a connection to receiver end.

抛出:

SyncConnectionException

confirmIdentity

void confirmIdentity()
              throws SyncConnectionException,
                     IOException

Confirm identity, the receiver will check whether the sender has synchronization privileges.

抛出:

SyncConnectionException

IOException

syncSchema

void syncSchema()
         throws SyncConnectionException,
                org.apache.thrift.TException

Sync schema file to receiver before all data to be synced.

抛出:

SyncConnectionException

org.apache.thrift.TException

syncDeletedFilesNameInOneGroup

void syncDeletedFilesNameInOneGroup(String sgName,
                                    Long vgId,
                                    Long timeRangeId,
                                    Set<File> deletedFilesName)
                             throws SyncConnectionException,
                                    IOException

For deleted files in a storage group, sync them to receiver side and load these files in receiver.

参数:

sgName - storage group name

vgId - virtual group id

timeRangeId - id of time range

deletedFilesName - list of deleted file names

抛出:

SyncConnectionException

IOException

syncAll

void syncAll()
      throws SyncConnectionException,
             IOException,
             org.apache.thrift.TException

Execute a sync task for all data directory.

抛出:

SyncConnectionException

IOException

org.apache.thrift.TException

sync

void sync()
   throws SyncConnectionException,
          IOException

Execute a sync task for a data directory.

抛出:

SyncConnectionException

IOException

syncDataFilesInOneGroup

void syncDataFilesInOneGroup(String sgName,
                             Long vgId,
                             Long timeRangeId,
                             Set<File> toBeSyncFiles)
                      throws SyncConnectionException,
                             IOException,
                             SyncDeviceOwnerConflictException

For new valid files in a storage group, sync them to receiver side and load these data in receiver.

参数:

sgName - storage group name

vgId - virtual group id

timeRangeId - id of time range

toBeSyncFiles - list of new tsfile names

抛出:

SyncConnectionException

IOException

SyncDeviceOwnerConflictException

stop

void stop()

Stop sync process