Package org.apache.flink.state.forst.datatransfer

Class ReusableDataTransferStrategy

java.lang.Object
org.apache.flink.state.forst.datatransfer.DataTransferStrategy
org.apache.flink.state.forst.datatransfer.CopyDataTransferStrategy
org.apache.flink.state.forst.datatransfer.ReusableDataTransferStrategy
public class ReusableDataTransferStrategy extends CopyDataTransferStrategy
Data transfer strategy for ForSt DB with a remote DB path. When transferring data between Checkpoint and DB, this strategy MAY reuse the file from Checkpoint storage.

  • Field Summary

    Fields inherited from class org.apache.flink.state.forst.datatransfer.DataTransferStrategy

    dbFileSystem, LOG

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    toString()
     
    void
    transferFromCheckpoint(org.apache.flink.runtime.state.StreamStateHandle sourceHandle, org.apache.flink.core.fs.Path targetPath, org.apache.flink.core.fs.CloseableRegistry closeableRegistry)
     
    org.apache.flink.runtime.state.IncrementalKeyedStateHandle.HandleAndLocalPath
    transferToCheckpoint(org.apache.flink.core.fs.Path dbFilePath, long maxTransferBytes, org.apache.flink.runtime.state.CheckpointStreamFactory checkpointStreamFactory, org.apache.flink.runtime.state.CheckpointedStateScope stateScope, org.apache.flink.core.fs.CloseableRegistry closeableRegistry, org.apache.flink.core.fs.CloseableRegistry tmpResourcesRegistry)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Method Details

    • transferToCheckpoint

      public org.apache.flink.runtime.state.IncrementalKeyedStateHandle.HandleAndLocalPath transferToCheckpoint(org.apache.flink.core.fs.Path dbFilePath, long maxTransferBytes, org.apache.flink.runtime.state.CheckpointStreamFactory checkpointStreamFactory, org.apache.flink.runtime.state.CheckpointedStateScope stateScope, org.apache.flink.core.fs.CloseableRegistry closeableRegistry, org.apache.flink.core.fs.CloseableRegistry tmpResourcesRegistry) throws IOException
      Overrides:
      transferToCheckpoint in class CopyDataTransferStrategy
      Throws:
      IOException

    • transferFromCheckpoint

      public void transferFromCheckpoint(org.apache.flink.runtime.state.StreamStateHandle sourceHandle, org.apache.flink.core.fs.Path targetPath, org.apache.flink.core.fs.CloseableRegistry closeableRegistry) throws IOException
      Overrides:
      transferFromCheckpoint in class CopyDataTransferStrategy
      Throws:
      IOException

    • toString

      public String toString()
      Overrides:
      toString in class CopyDataTransferStrategy