Package ml.shifu.guagua.master

This package contains guagua master implementation.

See: Description

Interface Summary

Interface	Description
MasterComputable<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	MasterComputable defines master computation for any guagua application.
MasterContext.MasterCompletionCallBack<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	Define callback for compeletion of master computation.
MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	MasterInterceptor defines hook points for each guagua application.

Class Summary

Class	Description
AbstractMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	AbstractMasterCoordinator has some common implementation for both async and sync worker coordinator.
AsyncMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	AsyncMasterCoordinator is used to as a barrier for each iteration.
BasicMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	Empty MasterInterceptor implementation for user to choose which function should be override.
GcMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	GcMasterInterceptor is used to log gc time of preXXXX of interceptors, master computation and postXXXX of interceptors.
GuaguaMasterService<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	GuaguaMasterService is the basic implementation as a master for whole guagua application process.
HookMasterComputable<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	Common MasterComputable abstraction to define HookMasterComputable.setup(MasterContext) and HookMasterComputable.cleanup(MasterContext) hooks.
LocalMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	LocalMasterCoordinator is local coordinator implementation in one jvm instance.
MasterComputableTimer<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	MasterComputableTimer is used to print execution time for master computation.
MasterContext<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	MasterContext is a context object which contains all useful info used in master computation.
MasterTimer<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	MasterTimer is used to log execution time of preXXXX of interceptors, master computation and postXXXX of interceptors.
MemoryStatsMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	MemoryStatsMasterInterceptor is used to print memory usage for each master checkpoint.
NettyMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	A master coordinator to coordinate with workers through Netty server.
SyncMasterCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	SyncMasterCoordinator is used to as a barrier for each iteration.
TraceMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>	TraceMasterInterceptor is used to trace whole application for master.

Package ml.shifu.guagua.master Description

This package contains guagua master implementation.

com.paypal.guagua.master.GuaguaMasterService is a implementation to do master computation and master interceptors.

Master coordinator, memory profiler and timer such kind of useful interceptors are included in this package.