alluxio.client.journal

Interface JournalMasterClient

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable

All Known Implementing Classes:

RetryHandlingJournalMasterClient

public interface JournalMasterClient
extends java.io.Closeable

Interface for a journal master client.

Method Summary

Modifier and Type	Method and Description
GetQuorumInfoPResponse	getQuorumInfo() Quorum information for participating servers in journal.
GetTransferLeaderMessagePResponse	getTransferLeaderMessage(java.lang.String transferId) Gets exception messages thrown when transferring the leader.
void	removeQuorumServer(NetAddress serverAddress) Removes a server from journal quorum.
void	resetPriorities() Resets RaftPeer priorities.
java.lang.String	transferLeadership(NetAddress newLeaderNetAddress) Initiates changing the leading master of the quorum.

Methods inherited from interface java.io.Closeable

close

Method Detail

getQuorumInfo

GetQuorumInfoPResponse getQuorumInfo()
                              throws AlluxioStatusException

Quorum information for participating servers in journal.

Returns:

list of server states in quorum

Throws:

AlluxioStatusException

removeQuorumServer

void removeQuorumServer(NetAddress serverAddress)
                 throws AlluxioStatusException

Removes a server from journal quorum.

Parameters:

serverAddress - server address to remove from quorum

Throws:

AlluxioStatusException

transferLeadership

java.lang.String transferLeadership(NetAddress newLeaderNetAddress)
                             throws AlluxioStatusException

Initiates changing the leading master of the quorum.

Parameters:

newLeaderNetAddress - server address of the prospective new leader

Returns:

the guid of transfer leader command

Throws:

AlluxioStatusException

resetPriorities

void resetPriorities()
              throws AlluxioStatusException

Resets RaftPeer priorities.

Throws:

AlluxioStatusException

getTransferLeaderMessage

GetTransferLeaderMessagePResponse getTransferLeaderMessage(java.lang.String transferId)
                                                    throws AlluxioStatusException

Gets exception messages thrown when transferring the leader.

Parameters:

transferId - the guid of transferLeader command

Returns:

exception message thrown when transferring the leader

Throws:

AlluxioStatusException