JournalProtocolPB (Apache Hadoop HDFS 3.5.0 API)
Description: declaration: package: org.apache.hadoop.hdfs.protocolPB, interface: JournalProtocolPB

Package org.apache.hadoop.hdfs.protocolPB

# Interface JournalProtocolPB

All Superinterfaces:
  `org.apache.hadoop.hdfs.protocol.proto.JournalProtocolProtos.JournalProtocolService.BlockingInterface`

All Known Implementing Classes:
  `JournalProtocolServerSideTranslatorPB`

@Private public interface JournalProtocolPB extends org.apache.hadoop.hdfs.protocol.proto.JournalProtocolProtos.JournalProtocolService.BlockingInterface
Protocol used to journal edits to a remote node. Currently, this is used to publish edits from the NameNode to a BackupNode. Note: This extends the protocolbuffer service based interface to add annotations required for security.

- ## Method Summary

  ### Methods inherited from interface org.apache.hadoop.hdfs.protocol.proto.JournalProtocolProtos.JournalProtocolService.BlockingInterface

  `fence, journal, startLogSegment`