tachyon.thrift

Class WorkerService.Client

java.lang.Object

org.apache.thrift.TServiceClient

tachyon.thrift.WorkerService.Client

All Implemented Interfaces:

WorkerService.Iface

Enclosing class:

WorkerService

public static class WorkerService.Client
extends org.apache.thrift.TServiceClient
implements WorkerService.Iface

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	WorkerService.Client.Factory

Field Summary

Fields inherited from class org.apache.thrift.TServiceClient

iprot_, oprot_, seqid_

Constructor Summary

Constructors

Constructor and Description
WorkerService.Client(org.apache.thrift.protocol.TProtocol prot)
WorkerService.Client(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot)

Method Summary

Methods

Modifier and Type	Method and Description
void	accessBlock(long blockId)
boolean	asyncCheckpoint(long fileId)
void	cacheBlock(long sessionId, long blockId) Used to cache a block into Tachyon space, worker will move the temporary block file from session folder to data folder, and update the space usage information related.
void	cancelBlock(long sessionId, long blockId) Used to cancel a block which is being written.
String	lockBlock(long blockId, long sessionId) Lock the file in Tachyon's space while the session is reading it, and the path of the block file locked will be returned, if the block file is not found, FileDoesNotExistException will be thrown.
void	persistFile(long fileId, long nonce, String path)
boolean	promoteBlock(long blockId) Used to promote block on under storage layer to top storage layer when there are more than one storage layers in Tachyon's space.
void	recv_accessBlock()
boolean	recv_asyncCheckpoint()
void	recv_cacheBlock()
void	recv_cancelBlock()
String	recv_lockBlock()
void	recv_persistFile()
boolean	recv_promoteBlock()
String	recv_requestBlockLocation()
boolean	recv_requestSpace()
void	recv_sessionHeartbeat()
boolean	recv_unlockBlock()
String	requestBlockLocation(long sessionId, long blockId, long initialBytes) Used to allocate location and space for a new coming block, worker will choose the appropriate storage directory which fits the initial block size by some allocation strategy, and the temporary file path of the block file will be returned.
boolean	requestSpace(long sessionId, long blockId, long requestBytes) Used to request space for some block file.
void	send_accessBlock(long blockId)
void	send_asyncCheckpoint(long fileId)
void	send_cacheBlock(long sessionId, long blockId)
void	send_cancelBlock(long sessionId, long blockId)
void	send_lockBlock(long blockId, long sessionId)
void	send_persistFile(long fileId, long nonce, String path)
void	send_promoteBlock(long blockId)
void	send_requestBlockLocation(long sessionId, long blockId, long initialBytes)
void	send_requestSpace(long sessionId, long blockId, long requestBytes)
void	send_sessionHeartbeat(long sessionId, List<Long> metrics)
void	send_unlockBlock(long blockId, long sessionId)
void	sessionHeartbeat(long sessionId, List<Long> metrics) Local session send heartbeat to local worker to keep its temporary folder.
boolean	unlockBlock(long blockId, long sessionId) Used to unlock a block after the block is accessed, if the block is to be removed, delete the block file.

Methods inherited from class org.apache.thrift.TServiceClient

getInputProtocol, getOutputProtocol, receiveBase, sendBase

Methods inherited from class java.lang.Object

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

Constructor Detail

WorkerService.Client

public WorkerService.Client(org.apache.thrift.protocol.TProtocol prot)

WorkerService.Client

public WorkerService.Client(org.apache.thrift.protocol.TProtocol iprot,
                    org.apache.thrift.protocol.TProtocol oprot)

Method Detail

accessBlock

public void accessBlock(long blockId)
                 throws org.apache.thrift.TException

Specified by:

accessBlock in interface WorkerService.Iface

Throws:

org.apache.thrift.TException

send_accessBlock

public void send_accessBlock(long blockId)
                      throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_accessBlock

public void recv_accessBlock()
                      throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

asyncCheckpoint

public boolean asyncCheckpoint(long fileId)
                        throws TachyonTException,
                               org.apache.thrift.TException

Specified by:

asyncCheckpoint in interface WorkerService.Iface

Throws:

TachyonTException

org.apache.thrift.TException

send_asyncCheckpoint

public void send_asyncCheckpoint(long fileId)
                          throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_asyncCheckpoint

public boolean recv_asyncCheckpoint()
                             throws TachyonTException,
                                    org.apache.thrift.TException

Throws:

TachyonTException

org.apache.thrift.TException

cacheBlock

public void cacheBlock(long sessionId,
              long blockId)
                throws TachyonTException,
                       ThriftIOException,
                       org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Used to cache a block into Tachyon space, worker will move the temporary block file from session folder to data folder, and update the space usage information related. then update the block information to master.

Specified by:

cacheBlock in interface WorkerService.Iface

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

send_cacheBlock

public void send_cacheBlock(long sessionId,
                   long blockId)
                     throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_cacheBlock

public void recv_cacheBlock()
                     throws TachyonTException,
                            ThriftIOException,
                            org.apache.thrift.TException

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

cancelBlock

public void cancelBlock(long sessionId,
               long blockId)
                 throws TachyonTException,
                        ThriftIOException,
                        org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Used to cancel a block which is being written. worker will delete the temporary block file and the location and space information related, then reclaim space allocated to the block.

Specified by:

cancelBlock in interface WorkerService.Iface

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

send_cancelBlock

public void send_cancelBlock(long sessionId,
                    long blockId)
                      throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_cancelBlock

public void recv_cancelBlock()
                      throws TachyonTException,
                             ThriftIOException,
                             org.apache.thrift.TException

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

lockBlock

public String lockBlock(long blockId,
               long sessionId)
                 throws TachyonTException,
                        org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Lock the file in Tachyon's space while the session is reading it, and the path of the block file locked will be returned, if the block file is not found, FileDoesNotExistException will be thrown.

Specified by:

lockBlock in interface WorkerService.Iface

Throws:

TachyonTException

org.apache.thrift.TException

send_lockBlock

public void send_lockBlock(long blockId,
                  long sessionId)
                    throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_lockBlock

public String recv_lockBlock()
                      throws TachyonTException,
                             org.apache.thrift.TException

Throws:

TachyonTException

org.apache.thrift.TException

persistFile

public void persistFile(long fileId,
               long nonce,
               String path)
                 throws TachyonTException,
                        org.apache.thrift.TException

Specified by:

persistFile in interface WorkerService.Iface

Throws:

TachyonTException

org.apache.thrift.TException

send_persistFile

public void send_persistFile(long fileId,
                    long nonce,
                    String path)
                      throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_persistFile

public void recv_persistFile()
                      throws TachyonTException,
                             org.apache.thrift.TException

Throws:

TachyonTException

org.apache.thrift.TException

promoteBlock

public boolean promoteBlock(long blockId)
                     throws TachyonTException,
                            ThriftIOException,
                            org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Used to promote block on under storage layer to top storage layer when there are more than one storage layers in Tachyon's space. return true if the block is successfully promoted, false otherwise.

Specified by:

promoteBlock in interface WorkerService.Iface

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

send_promoteBlock

public void send_promoteBlock(long blockId)
                       throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_promoteBlock

public boolean recv_promoteBlock()
                          throws TachyonTException,
                                 ThriftIOException,
                                 org.apache.thrift.TException

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

requestBlockLocation

public String requestBlockLocation(long sessionId,
                          long blockId,
                          long initialBytes)
                            throws TachyonTException,
                                   ThriftIOException,
                                   org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Used to allocate location and space for a new coming block, worker will choose the appropriate storage directory which fits the initial block size by some allocation strategy, and the temporary file path of the block file will be returned. if there is no enough space on Tachyon storage OutOfSpaceException will be thrown, if the file is already being written by the session, FileAlreadyExistsException will be thrown.

Specified by:

requestBlockLocation in interface WorkerService.Iface

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

send_requestBlockLocation

public void send_requestBlockLocation(long sessionId,
                             long blockId,
                             long initialBytes)
                               throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_requestBlockLocation

public String recv_requestBlockLocation()
                                 throws TachyonTException,
                                        ThriftIOException,
                                        org.apache.thrift.TException

Throws:

TachyonTException

ThriftIOException

org.apache.thrift.TException

requestSpace

public boolean requestSpace(long sessionId,
                   long blockId,
                   long requestBytes)
                     throws TachyonTException,
                            org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Used to request space for some block file. return true if the worker successfully allocates space for the block on block’s location, false if there is no enough space, if there is no information of the block on worker, FileDoesNotExistException will be thrown.

Specified by:

requestSpace in interface WorkerService.Iface

Throws:

TachyonTException

org.apache.thrift.TException

send_requestSpace

public void send_requestSpace(long sessionId,
                     long blockId,
                     long requestBytes)
                       throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_requestSpace

public boolean recv_requestSpace()
                          throws TachyonTException,
                                 org.apache.thrift.TException

Throws:

TachyonTException

org.apache.thrift.TException

sessionHeartbeat

public void sessionHeartbeat(long sessionId,
                    List<Long> metrics)
                      throws org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Local session send heartbeat to local worker to keep its temporary folder. It also sends client metrics to the worker.

Specified by:

sessionHeartbeat in interface WorkerService.Iface

Throws:

org.apache.thrift.TException

send_sessionHeartbeat

public void send_sessionHeartbeat(long sessionId,
                         List<Long> metrics)
                           throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_sessionHeartbeat

public void recv_sessionHeartbeat()
                           throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

unlockBlock

public boolean unlockBlock(long blockId,
                  long sessionId)
                    throws org.apache.thrift.TException

Description copied from interface: WorkerService.Iface

Used to unlock a block after the block is accessed, if the block is to be removed, delete the block file. return true if successfully unlock the block, return false if the block is not found or failed to delete the block.

Specified by:

unlockBlock in interface WorkerService.Iface

Throws:

org.apache.thrift.TException

send_unlockBlock

public void send_unlockBlock(long blockId,
                    long sessionId)
                      throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException

recv_unlockBlock

public boolean recv_unlockBlock()
                         throws org.apache.thrift.TException

Throws:

org.apache.thrift.TException