/
ClientNamenodeProtocol.proto
758 lines (625 loc) · 20.6 KB
/
ClientNamenodeProtocol.proto
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* These .proto interfaces are private and stable.
* Please see http://wiki.apache.org/hadoop/Compatibility
* for what changes are allowed for a *stable* .proto interface.
*/
option java_package = "org.apache.hadoop.hdfs.protocol.proto";
option java_outer_classname = "ClientNamenodeProtocolProtos";
option java_generic_services = true;
//option java_generate_equals_and_hash = true;
package hadoop.hdfs;
import "Security.proto";
import "hdfs.proto";
import "acl.proto";
/**
* The ClientNamenodeProtocol Service defines the interface between a client
* (as runnign inside a MR Task) and the Namenode.
* See org.apache.hadoop.hdfs.protocol.ClientProtocol for the javadoc
* for each of the methods.
* The exceptions declared in the above class also apply to this protocol.
* Exceptions are unwrapped and thrown by the PB libraries.
*/
message GetBlockLocationsRequestProto {
required string src = 1; // file name
required uint64 offset = 2; // range start offset
required uint64 length = 3; // range length
}
message GetBlockLocationsResponseProto {
optional LocatedBlocksProto locations = 1;
}
message GetServerDefaultsRequestProto { // No parameters
}
message GetServerDefaultsResponseProto {
required FsServerDefaultsProto serverDefaults = 1;
}
enum CreateFlagProto {
CREATE = 0x01; // Create a file
OVERWRITE = 0x02; // Truncate/overwrite a file. Same as POSIX O_TRUNC
APPEND = 0x04; // Append to a file
}
message CreateRequestProto {
required string src = 1;
required FsPermissionProto masked = 2;
required string clientName = 3;
required uint32 createFlag = 4; // bits set using CreateFlag
required bool createParent = 5;
required uint32 replication = 6; // Short: Only 16 bits used
required uint64 blockSize = 7;
}
message CreateResponseProto {
optional HdfsFileStatusProto fs = 1;
}
message AppendRequestProto {
required string src = 1;
required string clientName = 2;
}
message AppendResponseProto {
optional LocatedBlockProto block = 1;
}
message SetReplicationRequestProto {
required string src = 1;
required uint32 replication = 2; // Short: Only 16 bits used
}
message SetReplicationResponseProto {
required bool result = 1;
}
message SetPermissionRequestProto {
required string src = 1;
required FsPermissionProto permission = 2;
}
message SetPermissionResponseProto { // void response
}
message SetOwnerRequestProto {
required string src = 1;
optional string username = 2;
optional string groupname = 3;
}
message SetOwnerResponseProto { // void response
}
message AbandonBlockRequestProto {
required ExtendedBlockProto b = 1;
required string src = 2;
required string holder = 3;
}
message AbandonBlockResponseProto { // void response
}
message AddBlockRequestProto {
required string src = 1;
required string clientName = 2;
optional ExtendedBlockProto previous = 3;
repeated DatanodeInfoProto excludeNodes = 4;
optional uint64 fileId = 5 [default = 0]; // default as a bogus id
repeated string favoredNodes = 6; //the set of datanodes to use for the block
}
message AddBlockResponseProto {
required LocatedBlockProto block = 1;
}
message GetAdditionalDatanodeRequestProto {
required string src = 1;
required ExtendedBlockProto blk = 2;
repeated DatanodeInfoProto existings = 3;
repeated DatanodeInfoProto excludes = 4;
required uint32 numAdditionalNodes = 5;
required string clientName = 6;
repeated string existingStorageUuids = 7;
}
message GetAdditionalDatanodeResponseProto {
required LocatedBlockProto block = 1;
}
message CompleteRequestProto {
required string src = 1;
required string clientName = 2;
optional ExtendedBlockProto last = 3;
optional uint64 fileId = 4 [default = 0]; // default to GRANDFATHER_INODE_ID
}
message CompleteResponseProto {
required bool result = 1;
}
message ReportBadBlocksRequestProto {
repeated LocatedBlockProto blocks = 1;
}
message ReportBadBlocksResponseProto { // void response
}
message ConcatRequestProto {
required string trg = 1;
repeated string srcs = 2;
}
message ConcatResponseProto { // void response
}
message RenameRequestProto {
required string src = 1;
required string dst = 2;
}
message RenameResponseProto {
required bool result = 1;
}
message Rename2RequestProto {
required string src = 1;
required string dst = 2;
required bool overwriteDest = 3;
}
message Rename2ResponseProto { // void response
}
message DeleteRequestProto {
required string src = 1;
required bool recursive = 2;
}
message DeleteResponseProto {
required bool result = 1;
}
message MkdirsRequestProto {
required string src = 1;
required FsPermissionProto masked = 2;
required bool createParent = 3;
}
message MkdirsResponseProto {
required bool result = 1;
}
message GetListingRequestProto {
required string src = 1;
required bytes startAfter = 2;
required bool needLocation = 3;
}
message GetListingResponseProto {
optional DirectoryListingProto dirList = 1;
}
message GetSnapshottableDirListingRequestProto { // no input parameters
}
message GetSnapshottableDirListingResponseProto {
optional SnapshottableDirectoryListingProto snapshottableDirList = 1;
}
message GetSnapshotDiffReportRequestProto {
required string snapshotRoot = 1;
required string fromSnapshot = 2;
required string toSnapshot = 3;
}
message GetSnapshotDiffReportResponseProto {
required SnapshotDiffReportProto diffReport = 1;
}
message RenewLeaseRequestProto {
required string clientName = 1;
}
message RenewLeaseResponseProto { //void response
}
message RecoverLeaseRequestProto {
required string src = 1;
required string clientName = 2;
}
message RecoverLeaseResponseProto {
required bool result = 1;
}
message GetFsStatusRequestProto { // no input paramters
}
message GetFsStatsResponseProto {
required uint64 capacity = 1;
required uint64 used = 2;
required uint64 remaining = 3;
required uint64 under_replicated = 4;
required uint64 corrupt_blocks = 5;
required uint64 missing_blocks = 6;
}
enum DatanodeReportTypeProto { // type of the datanode report
ALL = 1;
LIVE = 2;
DEAD = 3;
}
message GetDatanodeReportRequestProto {
required DatanodeReportTypeProto type = 1;
}
message GetDatanodeReportResponseProto {
repeated DatanodeInfoProto di = 1;
}
message GetPreferredBlockSizeRequestProto {
required string filename = 1;
}
message GetPreferredBlockSizeResponseProto {
required uint64 bsize = 1;
}
enum SafeModeActionProto {
SAFEMODE_LEAVE = 1;
SAFEMODE_ENTER = 2;
SAFEMODE_GET = 3;
}
message SetSafeModeRequestProto {
required SafeModeActionProto action = 1;
optional bool checked = 2 [default = false];
}
message SetSafeModeResponseProto {
required bool result = 1;
}
message SaveNamespaceRequestProto { // no parameters
}
message SaveNamespaceResponseProto { // void response
}
message RollEditsRequestProto { // no parameters
}
message RollEditsResponseProto { // response
required uint64 newSegmentTxId = 1;
}
message RestoreFailedStorageRequestProto {
required string arg = 1;
}
message RestoreFailedStorageResponseProto {
required bool result = 1;
}
message RefreshNodesRequestProto { // no parameters
}
message RefreshNodesResponseProto { // void response
}
message FinalizeUpgradeRequestProto { // no parameters
}
message FinalizeUpgradeResponseProto { // void response
}
enum RollingUpgradeActionProto {
QUERY = 1;
START = 2;
FINALIZE = 3;
}
message RollingUpgradeRequestProto {
required RollingUpgradeActionProto action = 1;
}
message RollingUpgradeInfoProto {
required RollingUpgradeStatusProto status = 1;
required uint64 startTime = 2;
required uint64 finalizeTime = 3;
required bool createdRollbackImages = 4;
}
message RollingUpgradeResponseProto {
optional RollingUpgradeInfoProto rollingUpgradeInfo= 1;
}
message ListCorruptFileBlocksRequestProto {
required string path = 1;
optional string cookie = 2;
}
message ListCorruptFileBlocksResponseProto {
required CorruptFileBlocksProto corrupt = 1;
}
message MetaSaveRequestProto {
required string filename = 1;
}
message MetaSaveResponseProto { // void response
}
message GetFileInfoRequestProto {
required string src = 1;
}
message GetFileInfoResponseProto {
optional HdfsFileStatusProto fs = 1;
}
message IsFileClosedRequestProto {
required string src = 1;
}
message IsFileClosedResponseProto {
required bool result = 1;
}
message CacheDirectiveInfoProto {
optional int64 id = 1;
optional string path = 2;
optional uint32 replication = 3;
optional string pool = 4;
optional CacheDirectiveInfoExpirationProto expiration = 5;
}
message CacheDirectiveInfoExpirationProto {
required int64 millis = 1;
required bool isRelative = 2;
}
message CacheDirectiveStatsProto {
required int64 bytesNeeded = 1;
required int64 bytesCached = 2;
required int64 filesNeeded = 3;
required int64 filesCached = 4;
required bool hasExpired = 5;
}
enum CacheFlagProto {
FORCE = 0x01; // Ignore pool resource limits
}
message AddCacheDirectiveRequestProto {
required CacheDirectiveInfoProto info = 1;
optional uint32 cacheFlags = 2; // bits set using CacheFlag
}
message AddCacheDirectiveResponseProto {
required int64 id = 1;
}
message ModifyCacheDirectiveRequestProto {
required CacheDirectiveInfoProto info = 1;
optional uint32 cacheFlags = 2; // bits set using CacheFlag
}
message ModifyCacheDirectiveResponseProto {
}
message RemoveCacheDirectiveRequestProto {
required int64 id = 1;
}
message RemoveCacheDirectiveResponseProto {
}
message ListCacheDirectivesRequestProto {
required int64 prevId = 1;
required CacheDirectiveInfoProto filter = 2;
}
message CacheDirectiveEntryProto {
required CacheDirectiveInfoProto info = 1;
required CacheDirectiveStatsProto stats = 2;
}
message ListCacheDirectivesResponseProto {
repeated CacheDirectiveEntryProto elements = 1;
required bool hasMore = 2;
}
message CachePoolInfoProto {
optional string poolName = 1;
optional string ownerName = 2;
optional string groupName = 3;
optional int32 mode = 4;
optional int64 limit = 5;
optional int64 maxRelativeExpiry = 6;
}
message CachePoolStatsProto {
required int64 bytesNeeded = 1;
required int64 bytesCached = 2;
required int64 bytesOverlimit = 3;
required int64 filesNeeded = 4;
required int64 filesCached = 5;
}
message AddCachePoolRequestProto {
required CachePoolInfoProto info = 1;
}
message AddCachePoolResponseProto { // void response
}
message ModifyCachePoolRequestProto {
required CachePoolInfoProto info = 1;
}
message ModifyCachePoolResponseProto { // void response
}
message RemoveCachePoolRequestProto {
required string poolName = 1;
}
message RemoveCachePoolResponseProto { // void response
}
message ListCachePoolsRequestProto {
required string prevPoolName = 1;
}
message ListCachePoolsResponseProto {
repeated CachePoolEntryProto entries = 1;
required bool hasMore = 2;
}
message CachePoolEntryProto {
required CachePoolInfoProto info = 1;
required CachePoolStatsProto stats = 2;
}
message GetFileLinkInfoRequestProto {
required string src = 1;
}
message GetFileLinkInfoResponseProto {
optional HdfsFileStatusProto fs = 1;
}
message GetContentSummaryRequestProto {
required string path = 1;
}
message GetContentSummaryResponseProto {
required ContentSummaryProto summary = 1;
}
message SetQuotaRequestProto {
required string path = 1;
required uint64 namespaceQuota = 2;
required uint64 diskspaceQuota = 3;
}
message SetQuotaResponseProto { // void response
}
message FsyncRequestProto {
required string src = 1;
required string client = 2;
optional sint64 lastBlockLength = 3 [default = -1];
}
message FsyncResponseProto { // void response
}
message SetTimesRequestProto {
required string src = 1;
required uint64 mtime = 2;
required uint64 atime = 3;
}
message SetTimesResponseProto { // void response
}
message CreateSymlinkRequestProto {
required string target = 1;
required string link = 2;
required FsPermissionProto dirPerm = 3;
required bool createParent = 4;
}
message CreateSymlinkResponseProto { // void response
}
message GetLinkTargetRequestProto {
required string path = 1;
}
message GetLinkTargetResponseProto {
optional string targetPath = 1;
}
message UpdateBlockForPipelineRequestProto {
required ExtendedBlockProto block = 1;
required string clientName = 2;
}
message UpdateBlockForPipelineResponseProto {
required LocatedBlockProto block = 1;
}
message UpdatePipelineRequestProto {
required string clientName = 1;
required ExtendedBlockProto oldBlock = 2;
required ExtendedBlockProto newBlock = 3;
repeated DatanodeIDProto newNodes = 4;
repeated string storageIDs = 5;
}
message UpdatePipelineResponseProto { // void response
}
message SetBalancerBandwidthRequestProto {
required int64 bandwidth = 1;
}
message SetBalancerBandwidthResponseProto { // void response
}
message GetDataEncryptionKeyRequestProto { // no parameters
}
message GetDataEncryptionKeyResponseProto {
optional DataEncryptionKeyProto dataEncryptionKey = 1;
}
message CreateSnapshotRequestProto {
required string snapshotRoot = 1;
optional string snapshotName = 2;
}
message CreateSnapshotResponseProto {
required string snapshotPath = 1;
}
message RenameSnapshotRequestProto {
required string snapshotRoot = 1;
required string snapshotOldName = 2;
required string snapshotNewName = 3;
}
message RenameSnapshotResponseProto { // void response
}
message AllowSnapshotRequestProto {
required string snapshotRoot = 1;
}
message AllowSnapshotResponseProto {
}
message DisallowSnapshotRequestProto {
required string snapshotRoot = 1;
}
message DisallowSnapshotResponseProto {
}
message DeleteSnapshotRequestProto {
required string snapshotRoot = 1;
required string snapshotName = 2;
}
message DeleteSnapshotResponseProto { // void response
}
service ClientNamenodeProtocol {
rpc getBlockLocations(GetBlockLocationsRequestProto)
returns(GetBlockLocationsResponseProto);
rpc getServerDefaults(GetServerDefaultsRequestProto)
returns(GetServerDefaultsResponseProto);
rpc create(CreateRequestProto)returns(CreateResponseProto);
rpc append(AppendRequestProto) returns(AppendResponseProto);
rpc setReplication(SetReplicationRequestProto)
returns(SetReplicationResponseProto);
rpc setPermission(SetPermissionRequestProto)
returns(SetPermissionResponseProto);
rpc setOwner(SetOwnerRequestProto) returns(SetOwnerResponseProto);
rpc abandonBlock(AbandonBlockRequestProto) returns(AbandonBlockResponseProto);
rpc addBlock(AddBlockRequestProto) returns(AddBlockResponseProto);
rpc getAdditionalDatanode(GetAdditionalDatanodeRequestProto)
returns(GetAdditionalDatanodeResponseProto);
rpc complete(CompleteRequestProto) returns(CompleteResponseProto);
rpc reportBadBlocks(ReportBadBlocksRequestProto)
returns(ReportBadBlocksResponseProto);
rpc concat(ConcatRequestProto) returns(ConcatResponseProto);
rpc rename(RenameRequestProto) returns(RenameResponseProto);
rpc rename2(Rename2RequestProto) returns(Rename2ResponseProto);
rpc delete(DeleteRequestProto) returns(DeleteResponseProto);
rpc mkdirs(MkdirsRequestProto) returns(MkdirsResponseProto);
rpc getListing(GetListingRequestProto) returns(GetListingResponseProto);
rpc renewLease(RenewLeaseRequestProto) returns(RenewLeaseResponseProto);
rpc recoverLease(RecoverLeaseRequestProto)
returns(RecoverLeaseResponseProto);
rpc getFsStats(GetFsStatusRequestProto) returns(GetFsStatsResponseProto);
rpc getDatanodeReport(GetDatanodeReportRequestProto)
returns(GetDatanodeReportResponseProto);
rpc getPreferredBlockSize(GetPreferredBlockSizeRequestProto)
returns(GetPreferredBlockSizeResponseProto);
rpc setSafeMode(SetSafeModeRequestProto)
returns(SetSafeModeResponseProto);
rpc saveNamespace(SaveNamespaceRequestProto)
returns(SaveNamespaceResponseProto);
rpc rollEdits(RollEditsRequestProto)
returns(RollEditsResponseProto);
rpc restoreFailedStorage(RestoreFailedStorageRequestProto)
returns(RestoreFailedStorageResponseProto);
rpc refreshNodes(RefreshNodesRequestProto) returns(RefreshNodesResponseProto);
rpc finalizeUpgrade(FinalizeUpgradeRequestProto)
returns(FinalizeUpgradeResponseProto);
rpc rollingUpgrade(RollingUpgradeRequestProto)
returns(RollingUpgradeResponseProto);
rpc listCorruptFileBlocks(ListCorruptFileBlocksRequestProto)
returns(ListCorruptFileBlocksResponseProto);
rpc metaSave(MetaSaveRequestProto) returns(MetaSaveResponseProto);
rpc getFileInfo(GetFileInfoRequestProto) returns(GetFileInfoResponseProto);
rpc addCacheDirective(AddCacheDirectiveRequestProto)
returns (AddCacheDirectiveResponseProto);
rpc modifyCacheDirective(ModifyCacheDirectiveRequestProto)
returns (ModifyCacheDirectiveResponseProto);
rpc removeCacheDirective(RemoveCacheDirectiveRequestProto)
returns (RemoveCacheDirectiveResponseProto);
rpc listCacheDirectives(ListCacheDirectivesRequestProto)
returns (ListCacheDirectivesResponseProto);
rpc addCachePool(AddCachePoolRequestProto)
returns(AddCachePoolResponseProto);
rpc modifyCachePool(ModifyCachePoolRequestProto)
returns(ModifyCachePoolResponseProto);
rpc removeCachePool(RemoveCachePoolRequestProto)
returns(RemoveCachePoolResponseProto);
rpc listCachePools(ListCachePoolsRequestProto)
returns(ListCachePoolsResponseProto);
rpc getFileLinkInfo(GetFileLinkInfoRequestProto)
returns(GetFileLinkInfoResponseProto);
rpc getContentSummary(GetContentSummaryRequestProto)
returns(GetContentSummaryResponseProto);
rpc setQuota(SetQuotaRequestProto) returns(SetQuotaResponseProto);
rpc fsync(FsyncRequestProto) returns(FsyncResponseProto);
rpc setTimes(SetTimesRequestProto) returns(SetTimesResponseProto);
rpc createSymlink(CreateSymlinkRequestProto)
returns(CreateSymlinkResponseProto);
rpc getLinkTarget(GetLinkTargetRequestProto)
returns(GetLinkTargetResponseProto);
rpc updateBlockForPipeline(UpdateBlockForPipelineRequestProto)
returns(UpdateBlockForPipelineResponseProto);
rpc updatePipeline(UpdatePipelineRequestProto)
returns(UpdatePipelineResponseProto);
rpc getDelegationToken(hadoop.common.GetDelegationTokenRequestProto)
returns(hadoop.common.GetDelegationTokenResponseProto);
rpc renewDelegationToken(hadoop.common.RenewDelegationTokenRequestProto)
returns(hadoop.common.RenewDelegationTokenResponseProto);
rpc cancelDelegationToken(hadoop.common.CancelDelegationTokenRequestProto)
returns(hadoop.common.CancelDelegationTokenResponseProto);
rpc setBalancerBandwidth(SetBalancerBandwidthRequestProto)
returns(SetBalancerBandwidthResponseProto);
rpc getDataEncryptionKey(GetDataEncryptionKeyRequestProto)
returns(GetDataEncryptionKeyResponseProto);
rpc createSnapshot(CreateSnapshotRequestProto)
returns(CreateSnapshotResponseProto);
rpc renameSnapshot(RenameSnapshotRequestProto)
returns(RenameSnapshotResponseProto);
rpc allowSnapshot(AllowSnapshotRequestProto)
returns(AllowSnapshotResponseProto);
rpc disallowSnapshot(DisallowSnapshotRequestProto)
returns(DisallowSnapshotResponseProto);
rpc getSnapshottableDirListing(GetSnapshottableDirListingRequestProto)
returns(GetSnapshottableDirListingResponseProto);
rpc deleteSnapshot(DeleteSnapshotRequestProto)
returns(DeleteSnapshotResponseProto);
rpc getSnapshotDiffReport(GetSnapshotDiffReportRequestProto)
returns(GetSnapshotDiffReportResponseProto);
rpc isFileClosed(IsFileClosedRequestProto)
returns(IsFileClosedResponseProto);
rpc modifyAclEntries(ModifyAclEntriesRequestProto)
returns(ModifyAclEntriesResponseProto);
rpc removeAclEntries(RemoveAclEntriesRequestProto)
returns(RemoveAclEntriesResponseProto);
rpc removeDefaultAcl(RemoveDefaultAclRequestProto)
returns(RemoveDefaultAclResponseProto);
rpc removeAcl(RemoveAclRequestProto)
returns(RemoveAclResponseProto);
rpc setAcl(SetAclRequestProto)
returns(SetAclResponseProto);
rpc getAclStatus(GetAclStatusRequestProto)
returns(GetAclStatusResponseProto);
}