# Package org.apache.flume.channel.file

- Class Summary
  Class | Description
  --- | ---
  CheckpointRebuilder |
  EventUtils |
  FileChannel | A durable `Channel` implementation that uses the local file system for its storage.
  FileChannelConfiguration |
  Log | Stores FlumeEvents on disk and pointers to the events in a in memory queue.
  LogFile |
  LogFile.OperationRecordUpdater | This is an class meant to be an internal Flume API, and can change at any time.
  LogFile.SequentialReader |
  LogFileV3 | Represents a single data file on disk.
  LogFileV3.SequentialReader |
  LogRecord |
  LogUtils |
  Serialization |
  TransactionEventRecord | Base class for records in data file: Put, Take, Rollback, Commit
  TransactionIDOracle |
  WriteOrderOracle |

- Exception Summary
  Exception | Description
  --- | ---
  BadCheckpointException | Exception thrown when the checkpoint directory contains invalid data, probably due to the channel stopping while the checkpoint was written.
  CorruptEventException |
  LogFileRetryableIOException |
  NoopRecordException |

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