Package alluxio.master.journal

Interface Summary

Interface	Description
DelegatingJournaled	Convenient interface for classes which delegate their journaling methods to another journaled object.
Journal	A journal for persisting journal entries.
JournalContext	Context for storing journaling information.
Journaled	Interface for classes with journaled state.
JournalEntryIterable	Interface to get an iterator of Journal.JournalEntrys.
JournalEntryReplayable	Interface for classes which can replay journal entries.
JournalEntryRepresentable	This interface enables representing a class as a Journal.JournalEntry.
JournalFileParser	An interface to parse a journal file.
JournalMaster	Interface for journal master implementations.
JournalReader	This class manages reading from the journal.
JournalSystem	A journal system for storing and applying journal entries.
JournalWriter	Interface for a class that can write and flush journal entries.
NoopJournaled	Interface providing default implementations which do nothing.

Class Summary

Class	Description
AbstractCatchupThread	Abstract helper for tracking and terminating a thread for journal catch-up task.
AbstractJournalSystem	Base implementation for journal systems.
AsyncJournalWriter	This enables async journal writing, as well as some batched journal flushing.
CatchupFuture	Used to track and cancel journal advancing.
DefaultJournalMaster	Default implementation for JournalMaster.
JournaledGroup	Convenience class which groups together multiple Journaled components as a single Journaled component.
JournalEntryAssociation	Association from journal entry to the master it applies to.
JournalEntryStreamReader	Class for reading journal entries from an input stream.
JournalFileParser.Factory	Factory to create JournalFileParser.
JournalMasterClientServiceHandler	This class is a gRPC handler for journal master RPCs invoked by an Alluxio client.
JournalSystem.Builder	Builder for constructing a journal system.
JournalUpgrader	Tool to upgrade journal from v0 to v1.
JournalUtils	Utility methods for working with the Alluxio journal.
MasterJournalContext	Context for storing master journal information.
MergeJournalContext	Context for merging journal entries together for a wrapped journal context.
NoopJournalContext	Noop version of JournalContext.
PatchedInputChunked	A replacement for Kryo's InputChunked which properly handles eof.
StateChangeJournalContext	Context for correctly managing the state change lock for a wrapped journal context.

Enum Summary

Enum	Description
JournalReader.State	States that the reader can be after calling JournalReader.advance().
JournalSystem.Mode	The mode of the journal system.
JournalType	Enumerates the different types of journals that Alluxio may be configured with.