alluxio.master.journal

Interface JournalMaster

All Known Implementing Classes:

DefaultJournalMaster

public interface JournalMaster

Interface for journal master implementations.

Method Summary

Modifier and Type	Method and Description
GetQuorumInfoPResponse	getQuorumInfo() Quorum information for participating servers in journal.
void	removeQuorumServer(NetAddress serverAddress) Removes a server from journal quorum.
void	resetPriorities() Resets RaftPeer priorities.
void	transferLeadership(NetAddress newLeaderAddress) Changes the leading master of the journal quorum.

Method Detail

getQuorumInfo

GetQuorumInfoPResponse getQuorumInfo()
                              throws IOException

Quorum information for participating servers in journal. This method is supported only for JournalType.EMBEDDED journal.

Returns:

the quorum info

Throws:

IOException - if error occurs while performing the operation

removeQuorumServer

void removeQuorumServer(NetAddress serverAddress)
                 throws IOException

Removes a server from journal quorum. This method is supported only for JournalType.EMBEDDED journal.

Parameters:

serverAddress - server address to remove from quorum

Throws:

IOException - if error occurs while performing the operation

transferLeadership

void transferLeadership(NetAddress newLeaderAddress)
                 throws IOException

Changes the leading master of the journal quorum. This method is supported only for JournalType.EMBEDDED journal.

Parameters:

newLeaderAddress - server address to remove from quorum

Throws:

IOException - if error occurs while performing the operation

resetPriorities

void resetPriorities()
              throws IOException

Resets RaftPeer priorities.

Throws:

IOException - if error occurs while performing the operation