package curvefs.mds.space

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• rpc AllocateBlockGroup (AllocateBlockGroupRequest, AllocateBlockGroupResponse)

  space.proto:118

  message AllocateBlockGroupRequest

  space.proto:58

  • required uint32 fsId = 1

  • required uint64 count = 2

    number of block groups

  • required string owner = 3

    or just ip:port

  message AllocateBlockGroupResponse

  space.proto:64

  • required SpaceErrCode status = 1

  • repeated BlockGroup blockGroups = 2

• rpc AcquireBlockGroup (AcquireBlockGroupRequest, AcquireBlockGroupResponse)

  space.proto:119

  message AcquireBlockGroupRequest

  space.proto:69

  • required uint32 fsId = 1

  • required string owner = 2

  • required uint64 blockGroupOffset = 3

  message AcquireBlockGroupResponse

  space.proto:75

  • required SpaceErrCode status = 1

  • optional BlockGroup blockGroups = 2

• rpc ReleaseBlockGroup (ReleaseBlockGroupRequest, ReleaseBlockGroupResponse)

  space.proto:120

  message ReleaseBlockGroupRequest

  space.proto:80

  • required uint32 fsId = 1

  • required string owner = 2

  • repeated BlockGroup blockGroups = 3

  message ReleaseBlockGroupResponse

  space.proto:86

  • required SpaceErrCode status = 1

• rpc StatSpace (StatSpaceRequest, StatSpaceResponse)

  space.proto:121

  message StatSpaceRequest

  space.proto:90

  • required uint32 fsId = 1

  message StatSpaceResponse

  space.proto:101

  • required SpaceErrCode status = 1

  • optional SpaceInfo spaceInfo = 2

• rpc UpdateUsage (UpdateUsageRequest, UpdateUsageResponse)

  space.proto:124

  TODO(wuhanqing): client should update usage periodicly

  message UpdateUsageRequest

  space.proto:106

  • required uint32 fsId = 1

  • repeated BlockGroup blockGroups = 2

    TODO(wuhanqing): maybe only need some fields of BlockGroup

  message UpdateUsageResponse

  space.proto:113

  • required SpaceErrCode status = 1

Used in: AcquireBlockGroupResponse, AllocateBlockGroupResponse, ReleaseBlockGroupRequest, UpdateUsageRequest

• required uint64 offset = 1

  start offset on volume

• required uint64 size = 2

  total bytes of each block group this must be fixed when create fs or mkfs, so, this field maybe not needed

• required uint64 available = 3

  available bytes

• required common.BitmapLocation bitmaplocation = 4

  bitmap location

• optional string owner = 5

  owner, who owns this block group

• repeated uint32 deallocating = 6

  deallocating, metaserver who is deallocate this block group

• repeated uint32 deallocated = 7

  deallocated, metaserver who finish deallocate this block group

Used in: AcquireBlockGroupResponse, AllocateBlockGroupResponse, ReleaseBlockGroupResponse, StatSpaceResponse, UpdateUsageResponse

• SpaceOk = 0

• SpaceErrUnknown = 1

• SpaceErrNoSpace = 2

• SpaceErrNotFound = 3

• SpaceErrConflict = 4

• SpaceErrEncode = 5

• SpaceErrDecode = 6

• SpaceErrCreate = 7

• SpaceErrExist = 8

• SpaceErrStorage = 9

• SpaceErrParam = 10

• SpaceErrNotSupport = 11

• SpaceErrExtendVolumeError = 12

• SpaceErrRelease = 13

Used in: StatSpaceResponse

• required uint64 size = 1

• required uint64 available = 2

• required uint32 totalBlockGroups = 3

• required uint32 allocatedBlockGroups = 4