data streaming.

close the block and pipeline.

Recover a failed PIPELINE_CLOSE.

pipeline set up for failed PIPELINE_SETUP_APPEND recovery.

pipeline set up for block creation.

pipeline setup for failed data streaming recovery.

transfer Finalized for adding datanodes.

transfer RBW for adding datanodes.

* Block erasure coding reconstruction info.

* Block information Please be wary of adding additional fields here, since INodeFiles need to fit in PB's default max message size of 64MB.

* Block replica storage policy.

* Cipher option.

* Message sent from the client to the DN after reading the entire read request.

* Summary of a file or directory.

* Contains a list of paths corresponding to corrupt files and a cookie used for iterative calls to NameNode.listCorruptFileBlocks.

* Identifies a Datanode.

* The status of a Datanode.

* DatanodeInfo array.

* Datanode local information.

* Represents a storage available on the datanode.

* blockPool - block pool to be deleted force - if false, delete the block pool only if it is empty.

* void response.

* Directory listing.

* ECSchema options entry.

* ECSchema for erasurecoding.

* Tell datanode to evict active clients that are writing.

* Extended block idenfies a block.

* Encryption information for a file.

* File or Directory permision - same spec as posix.

* HDFS Server Defaults.

* bandwidth - balancer bandwidth value of the datanode.

* Gets the file information where block and its metadata is stored block - block for which path information is being requested token - block token This message is deprecated in favor of file descriptor passing.

* block - block for which file path information is being returned localPath - file path where the block data is stored localMetaPath - file path where the block meta data is stored This message is deprecated in favor of file descriptor passing.

* Ping datanode for liveness and quick info.

* Query the running status of reconfiguration process.

* block - block for which visible length is requested.

* length - visible length of the block.

* Status of a file, directory or symlink Optionally includes a file's block locations if requested by client on the rpc call.

* Query the reconfigurable properties on NN/DN.

* A LocatedBlock gives information about a block and its location.

* A set of file blocks and their locations.

* Encryption information for an individual file within an encryption zone.

* Summary of quota usage of a directory.

* Sent as part of the BlockOpResponseProto for READ_BLOCK and COPY_BLOCK operations.

* void request.

* void response.

* Rolling upgrade status.

* An ID uniquely identifying a shared memory segment.

* An ID uniquely identifying a slot within a shared memory segment.

* forUpgrade - if true, clients are advised to wait for restart and quick upgrade restart is instrumented.

* Snapshot diff report entry.

* Snapshot diff report.

* Information related to a snapshot TODO: add more information.

* Snapshottable directory listing.

* Status of a snapshottable directory: besides the normal information for a directory status, also include snapshot quota, number of snapshots, and the full path of the parent directory.

* Asks NN/DN to reload configuration file.

* Storage type quota and usage information of a file or directory.

* A list of storage types.

* A list of storage IDs.

* Encryption information for an encryption zone.

* Checksum algorithms/types used in HDFS Make sure this enum's integer values match enum values' id properties defined in org.apache.hadoop.util.DataChecksum.Type.

* Cipher suite.

* Crypto protocol version used to access encrypted files.

Status is a 4-bit enum.

* Types of recognized storage media.