[#316] endpoint / replication protocol: more robust step-holds and replication cursor management
- drop HintMostRecentCommonAncestor rpc call
- it is wrong to put faith into the active side of the replication to always make that call
(we might not trust it, ref pull setup)
- clean up step holds + step bookmarks + replication cursor bookmarks on
send RPC instead
- this makes it symmetric with Receive RPC
- use a cache (endpoint.sendAbstractionsCache) to avoid the cost of
listing the on-disk endpoint abstractions state on every step
The "create" methods for endpoint abstractions (CreateReplicationCursor, HoldStep) are now fully
idempotent and return an Abstraction.
Notes about endpoint.sendAbstractionsCache:
- fills lazily from disk state on first `Get` operation
- fill from disk is generally only attempted once
- unless the `ListAbstractions` fails, in which case the fill from
disk is retried on next `Get` (the current `Get` will observe a
subset of the actual on-disk abstractions)
- the `Invalidate` method is called
- it is a global (zrepl process-wide) cache
fixes #316
This commit is contained in:
Christian Schwarz
+78
-201
@@ -46,7 +46,7 @@ func (x Tri) String() string {
|
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return proto.EnumName(Tri_name, int32(x))
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}
|
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func (Tri) EnumDescriptor() ([]byte, []int) {
|
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return fileDescriptor_pdu_e59763dc61674a79, []int{0}
|
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return fileDescriptor_pdu_483c6918b7b3d747, []int{0}
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}
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type FilesystemVersion_VersionType int32
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@@ -69,7 +69,7 @@ func (x FilesystemVersion_VersionType) String() string {
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return proto.EnumName(FilesystemVersion_VersionType_name, int32(x))
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}
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func (FilesystemVersion_VersionType) EnumDescriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{5, 0}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{5, 0}
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}
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type ListFilesystemReq struct {
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@@ -82,7 +82,7 @@ func (m *ListFilesystemReq) Reset() { *m = ListFilesystemReq{} }
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func (m *ListFilesystemReq) String() string { return proto.CompactTextString(m) }
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func (*ListFilesystemReq) ProtoMessage() {}
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func (*ListFilesystemReq) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{0}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{0}
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}
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func (m *ListFilesystemReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ListFilesystemReq.Unmarshal(m, b)
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@@ -113,7 +113,7 @@ func (m *ListFilesystemRes) Reset() { *m = ListFilesystemRes{} }
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func (m *ListFilesystemRes) String() string { return proto.CompactTextString(m) }
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func (*ListFilesystemRes) ProtoMessage() {}
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func (*ListFilesystemRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{1}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{1}
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}
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func (m *ListFilesystemRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ListFilesystemRes.Unmarshal(m, b)
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@@ -154,7 +154,7 @@ func (m *Filesystem) Reset() { *m = Filesystem{} }
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func (m *Filesystem) String() string { return proto.CompactTextString(m) }
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func (*Filesystem) ProtoMessage() {}
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func (*Filesystem) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{2}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{2}
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}
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func (m *Filesystem) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_Filesystem.Unmarshal(m, b)
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@@ -213,7 +213,7 @@ func (m *ListFilesystemVersionsReq) Reset() { *m = ListFilesystemVersion
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func (m *ListFilesystemVersionsReq) String() string { return proto.CompactTextString(m) }
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func (*ListFilesystemVersionsReq) ProtoMessage() {}
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func (*ListFilesystemVersionsReq) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{3}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{3}
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}
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func (m *ListFilesystemVersionsReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ListFilesystemVersionsReq.Unmarshal(m, b)
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@@ -251,7 +251,7 @@ func (m *ListFilesystemVersionsRes) Reset() { *m = ListFilesystemVersion
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func (m *ListFilesystemVersionsRes) String() string { return proto.CompactTextString(m) }
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func (*ListFilesystemVersionsRes) ProtoMessage() {}
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func (*ListFilesystemVersionsRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{4}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{4}
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}
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func (m *ListFilesystemVersionsRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ListFilesystemVersionsRes.Unmarshal(m, b)
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@@ -293,7 +293,7 @@ func (m *FilesystemVersion) Reset() { *m = FilesystemVersion{} }
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func (m *FilesystemVersion) String() string { return proto.CompactTextString(m) }
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func (*FilesystemVersion) ProtoMessage() {}
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func (*FilesystemVersion) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{5}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{5}
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}
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func (m *FilesystemVersion) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_FilesystemVersion.Unmarshal(m, b)
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@@ -371,7 +371,7 @@ func (m *SendReq) Reset() { *m = SendReq{} }
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func (m *SendReq) String() string { return proto.CompactTextString(m) }
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func (*SendReq) ProtoMessage() {}
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func (*SendReq) Descriptor() ([]byte, []int) {
|
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return fileDescriptor_pdu_e59763dc61674a79, []int{6}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{6}
|
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}
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func (m *SendReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_SendReq.Unmarshal(m, b)
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@@ -445,7 +445,7 @@ func (m *Property) Reset() { *m = Property{} }
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func (m *Property) String() string { return proto.CompactTextString(m) }
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func (*Property) ProtoMessage() {}
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func (*Property) Descriptor() ([]byte, []int) {
|
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return fileDescriptor_pdu_e59763dc61674a79, []int{7}
|
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return fileDescriptor_pdu_483c6918b7b3d747, []int{7}
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}
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func (m *Property) XXX_Unmarshal(b []byte) error {
|
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return xxx_messageInfo_Property.Unmarshal(m, b)
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@@ -496,7 +496,7 @@ func (m *SendRes) Reset() { *m = SendRes{} }
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func (m *SendRes) String() string { return proto.CompactTextString(m) }
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func (*SendRes) ProtoMessage() {}
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func (*SendRes) Descriptor() ([]byte, []int) {
|
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return fileDescriptor_pdu_e59763dc61674a79, []int{8}
|
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return fileDescriptor_pdu_483c6918b7b3d747, []int{8}
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}
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func (m *SendRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_SendRes.Unmarshal(m, b)
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@@ -548,7 +548,7 @@ func (m *SendCompletedReq) Reset() { *m = SendCompletedReq{} }
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func (m *SendCompletedReq) String() string { return proto.CompactTextString(m) }
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func (*SendCompletedReq) ProtoMessage() {}
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func (*SendCompletedReq) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{9}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{9}
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}
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func (m *SendCompletedReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_SendCompletedReq.Unmarshal(m, b)
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@@ -585,7 +585,7 @@ func (m *SendCompletedRes) Reset() { *m = SendCompletedRes{} }
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func (m *SendCompletedRes) String() string { return proto.CompactTextString(m) }
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func (*SendCompletedRes) ProtoMessage() {}
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func (*SendCompletedRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{10}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{10}
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}
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func (m *SendCompletedRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_SendCompletedRes.Unmarshal(m, b)
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@@ -620,7 +620,7 @@ func (m *ReceiveReq) Reset() { *m = ReceiveReq{} }
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func (m *ReceiveReq) String() string { return proto.CompactTextString(m) }
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func (*ReceiveReq) ProtoMessage() {}
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func (*ReceiveReq) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{11}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{11}
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}
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func (m *ReceiveReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ReceiveReq.Unmarshal(m, b)
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@@ -671,7 +671,7 @@ func (m *ReceiveRes) Reset() { *m = ReceiveRes{} }
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func (m *ReceiveRes) String() string { return proto.CompactTextString(m) }
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func (*ReceiveRes) ProtoMessage() {}
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func (*ReceiveRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{12}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{12}
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}
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func (m *ReceiveRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ReceiveRes.Unmarshal(m, b)
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@@ -704,7 +704,7 @@ func (m *DestroySnapshotsReq) Reset() { *m = DestroySnapshotsReq{} }
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func (m *DestroySnapshotsReq) String() string { return proto.CompactTextString(m) }
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func (*DestroySnapshotsReq) ProtoMessage() {}
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func (*DestroySnapshotsReq) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{13}
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||||
return fileDescriptor_pdu_483c6918b7b3d747, []int{13}
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}
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func (m *DestroySnapshotsReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_DestroySnapshotsReq.Unmarshal(m, b)
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@@ -750,7 +750,7 @@ func (m *DestroySnapshotRes) Reset() { *m = DestroySnapshotRes{} }
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func (m *DestroySnapshotRes) String() string { return proto.CompactTextString(m) }
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func (*DestroySnapshotRes) ProtoMessage() {}
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func (*DestroySnapshotRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{14}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{14}
|
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}
|
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func (m *DestroySnapshotRes) XXX_Unmarshal(b []byte) error {
|
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return xxx_messageInfo_DestroySnapshotRes.Unmarshal(m, b)
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@@ -795,7 +795,7 @@ func (m *DestroySnapshotsRes) Reset() { *m = DestroySnapshotsRes{} }
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func (m *DestroySnapshotsRes) String() string { return proto.CompactTextString(m) }
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func (*DestroySnapshotsRes) ProtoMessage() {}
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func (*DestroySnapshotsRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{15}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{15}
|
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}
|
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func (m *DestroySnapshotsRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_DestroySnapshotsRes.Unmarshal(m, b)
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@@ -833,7 +833,7 @@ func (m *ReplicationCursorReq) Reset() { *m = ReplicationCursorReq{} }
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func (m *ReplicationCursorReq) String() string { return proto.CompactTextString(m) }
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func (*ReplicationCursorReq) ProtoMessage() {}
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func (*ReplicationCursorReq) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{16}
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return fileDescriptor_pdu_483c6918b7b3d747, []int{16}
|
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}
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func (m *ReplicationCursorReq) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ReplicationCursorReq.Unmarshal(m, b)
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@@ -874,7 +874,7 @@ func (m *ReplicationCursorRes) Reset() { *m = ReplicationCursorRes{} }
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func (m *ReplicationCursorRes) String() string { return proto.CompactTextString(m) }
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func (*ReplicationCursorRes) ProtoMessage() {}
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func (*ReplicationCursorRes) Descriptor() ([]byte, []int) {
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return fileDescriptor_pdu_e59763dc61674a79, []int{17}
|
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return fileDescriptor_pdu_483c6918b7b3d747, []int{17}
|
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}
|
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func (m *ReplicationCursorRes) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_ReplicationCursorRes.Unmarshal(m, b)
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@@ -1010,7 +1010,7 @@ func (m *PingReq) Reset() { *m = PingReq{} }
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func (m *PingReq) String() string { return proto.CompactTextString(m) }
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func (*PingReq) ProtoMessage() {}
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func (*PingReq) Descriptor() ([]byte, []int) {
|
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return fileDescriptor_pdu_e59763dc61674a79, []int{18}
|
||||
return fileDescriptor_pdu_483c6918b7b3d747, []int{18}
|
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}
|
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func (m *PingReq) XXX_Unmarshal(b []byte) error {
|
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return xxx_messageInfo_PingReq.Unmarshal(m, b)
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@@ -1049,7 +1049,7 @@ func (m *PingRes) Reset() { *m = PingRes{} }
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func (m *PingRes) String() string { return proto.CompactTextString(m) }
|
||||
func (*PingRes) ProtoMessage() {}
|
||||
func (*PingRes) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_pdu_e59763dc61674a79, []int{19}
|
||||
return fileDescriptor_pdu_483c6918b7b3d747, []int{19}
|
||||
}
|
||||
func (m *PingRes) XXX_Unmarshal(b []byte) error {
|
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return xxx_messageInfo_PingRes.Unmarshal(m, b)
|
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@@ -1076,91 +1076,6 @@ func (m *PingRes) GetEcho() string {
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return ""
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}
|
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|
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type HintMostRecentCommonAncestorReq struct {
|
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Filesystem string `protobuf:"bytes,1,opt,name=Filesystem,proto3" json:"Filesystem,omitempty"`
|
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// A copy of the FilesystemVersion on the sending side that the replication
|
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// algorithm identified as a shared most recent common version between sending
|
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// and receiving side.
|
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//
|
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// If nil, this is an indication that the replication algorithm could not
|
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// find a common ancestor between the two sides.
|
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// NOTE: nilness does not mean that replication never happened - there could
|
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// as well be a replication conflict. thus, dont' jump to conclusions too
|
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// rapidly here.
|
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SenderVersion *FilesystemVersion `protobuf:"bytes,2,opt,name=SenderVersion,proto3" json:"SenderVersion,omitempty"`
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *HintMostRecentCommonAncestorReq) Reset() { *m = HintMostRecentCommonAncestorReq{} }
|
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func (m *HintMostRecentCommonAncestorReq) String() string { return proto.CompactTextString(m) }
|
||||
func (*HintMostRecentCommonAncestorReq) ProtoMessage() {}
|
||||
func (*HintMostRecentCommonAncestorReq) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_pdu_e59763dc61674a79, []int{20}
|
||||
}
|
||||
func (m *HintMostRecentCommonAncestorReq) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_HintMostRecentCommonAncestorReq.Unmarshal(m, b)
|
||||
}
|
||||
func (m *HintMostRecentCommonAncestorReq) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
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return xxx_messageInfo_HintMostRecentCommonAncestorReq.Marshal(b, m, deterministic)
|
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}
|
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func (dst *HintMostRecentCommonAncestorReq) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_HintMostRecentCommonAncestorReq.Merge(dst, src)
|
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}
|
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func (m *HintMostRecentCommonAncestorReq) XXX_Size() int {
|
||||
return xxx_messageInfo_HintMostRecentCommonAncestorReq.Size(m)
|
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}
|
||||
func (m *HintMostRecentCommonAncestorReq) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_HintMostRecentCommonAncestorReq.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_HintMostRecentCommonAncestorReq proto.InternalMessageInfo
|
||||
|
||||
func (m *HintMostRecentCommonAncestorReq) GetFilesystem() string {
|
||||
if m != nil {
|
||||
return m.Filesystem
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (m *HintMostRecentCommonAncestorReq) GetSenderVersion() *FilesystemVersion {
|
||||
if m != nil {
|
||||
return m.SenderVersion
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type HintMostRecentCommonAncestorRes struct {
|
||||
XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
||||
XXX_unrecognized []byte `json:"-"`
|
||||
XXX_sizecache int32 `json:"-"`
|
||||
}
|
||||
|
||||
func (m *HintMostRecentCommonAncestorRes) Reset() { *m = HintMostRecentCommonAncestorRes{} }
|
||||
func (m *HintMostRecentCommonAncestorRes) String() string { return proto.CompactTextString(m) }
|
||||
func (*HintMostRecentCommonAncestorRes) ProtoMessage() {}
|
||||
func (*HintMostRecentCommonAncestorRes) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_pdu_e59763dc61674a79, []int{21}
|
||||
}
|
||||
func (m *HintMostRecentCommonAncestorRes) XXX_Unmarshal(b []byte) error {
|
||||
return xxx_messageInfo_HintMostRecentCommonAncestorRes.Unmarshal(m, b)
|
||||
}
|
||||
func (m *HintMostRecentCommonAncestorRes) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
||||
return xxx_messageInfo_HintMostRecentCommonAncestorRes.Marshal(b, m, deterministic)
|
||||
}
|
||||
func (dst *HintMostRecentCommonAncestorRes) XXX_Merge(src proto.Message) {
|
||||
xxx_messageInfo_HintMostRecentCommonAncestorRes.Merge(dst, src)
|
||||
}
|
||||
func (m *HintMostRecentCommonAncestorRes) XXX_Size() int {
|
||||
return xxx_messageInfo_HintMostRecentCommonAncestorRes.Size(m)
|
||||
}
|
||||
func (m *HintMostRecentCommonAncestorRes) XXX_DiscardUnknown() {
|
||||
xxx_messageInfo_HintMostRecentCommonAncestorRes.DiscardUnknown(m)
|
||||
}
|
||||
|
||||
var xxx_messageInfo_HintMostRecentCommonAncestorRes proto.InternalMessageInfo
|
||||
|
||||
func init() {
|
||||
proto.RegisterType((*ListFilesystemReq)(nil), "ListFilesystemReq")
|
||||
proto.RegisterType((*ListFilesystemRes)(nil), "ListFilesystemRes")
|
||||
@@ -1182,8 +1097,6 @@ func init() {
|
||||
proto.RegisterType((*ReplicationCursorRes)(nil), "ReplicationCursorRes")
|
||||
proto.RegisterType((*PingReq)(nil), "PingReq")
|
||||
proto.RegisterType((*PingRes)(nil), "PingRes")
|
||||
proto.RegisterType((*HintMostRecentCommonAncestorReq)(nil), "HintMostRecentCommonAncestorReq")
|
||||
proto.RegisterType((*HintMostRecentCommonAncestorRes)(nil), "HintMostRecentCommonAncestorRes")
|
||||
proto.RegisterEnum("Tri", Tri_name, Tri_value)
|
||||
proto.RegisterEnum("FilesystemVersion_VersionType", FilesystemVersion_VersionType_name, FilesystemVersion_VersionType_value)
|
||||
}
|
||||
@@ -1206,7 +1119,6 @@ type ReplicationClient interface {
|
||||
DestroySnapshots(ctx context.Context, in *DestroySnapshotsReq, opts ...grpc.CallOption) (*DestroySnapshotsRes, error)
|
||||
ReplicationCursor(ctx context.Context, in *ReplicationCursorReq, opts ...grpc.CallOption) (*ReplicationCursorRes, error)
|
||||
SendCompleted(ctx context.Context, in *SendCompletedReq, opts ...grpc.CallOption) (*SendCompletedRes, error)
|
||||
HintMostRecentCommonAncestor(ctx context.Context, in *HintMostRecentCommonAncestorReq, opts ...grpc.CallOption) (*HintMostRecentCommonAncestorRes, error)
|
||||
}
|
||||
|
||||
type replicationClient struct {
|
||||
@@ -1271,15 +1183,6 @@ func (c *replicationClient) SendCompleted(ctx context.Context, in *SendCompleted
|
||||
return out, nil
|
||||
}
|
||||
|
||||
func (c *replicationClient) HintMostRecentCommonAncestor(ctx context.Context, in *HintMostRecentCommonAncestorReq, opts ...grpc.CallOption) (*HintMostRecentCommonAncestorRes, error) {
|
||||
out := new(HintMostRecentCommonAncestorRes)
|
||||
err := c.cc.Invoke(ctx, "/Replication/HintMostRecentCommonAncestor", in, out, opts...)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return out, nil
|
||||
}
|
||||
|
||||
// ReplicationServer is the server API for Replication service.
|
||||
type ReplicationServer interface {
|
||||
Ping(context.Context, *PingReq) (*PingRes, error)
|
||||
@@ -1288,7 +1191,6 @@ type ReplicationServer interface {
|
||||
DestroySnapshots(context.Context, *DestroySnapshotsReq) (*DestroySnapshotsRes, error)
|
||||
ReplicationCursor(context.Context, *ReplicationCursorReq) (*ReplicationCursorRes, error)
|
||||
SendCompleted(context.Context, *SendCompletedReq) (*SendCompletedRes, error)
|
||||
HintMostRecentCommonAncestor(context.Context, *HintMostRecentCommonAncestorReq) (*HintMostRecentCommonAncestorRes, error)
|
||||
}
|
||||
|
||||
func RegisterReplicationServer(s *grpc.Server, srv ReplicationServer) {
|
||||
@@ -1403,24 +1305,6 @@ func _Replication_SendCompleted_Handler(srv interface{}, ctx context.Context, de
|
||||
return interceptor(ctx, in, info, handler)
|
||||
}
|
||||
|
||||
func _Replication_HintMostRecentCommonAncestor_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
|
||||
in := new(HintMostRecentCommonAncestorReq)
|
||||
if err := dec(in); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if interceptor == nil {
|
||||
return srv.(ReplicationServer).HintMostRecentCommonAncestor(ctx, in)
|
||||
}
|
||||
info := &grpc.UnaryServerInfo{
|
||||
Server: srv,
|
||||
FullMethod: "/Replication/HintMostRecentCommonAncestor",
|
||||
}
|
||||
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
|
||||
return srv.(ReplicationServer).HintMostRecentCommonAncestor(ctx, req.(*HintMostRecentCommonAncestorReq))
|
||||
}
|
||||
return interceptor(ctx, in, info, handler)
|
||||
}
|
||||
|
||||
var _Replication_serviceDesc = grpc.ServiceDesc{
|
||||
ServiceName: "Replication",
|
||||
HandlerType: (*ReplicationServer)(nil),
|
||||
@@ -1449,73 +1333,66 @@ var _Replication_serviceDesc = grpc.ServiceDesc{
|
||||
MethodName: "SendCompleted",
|
||||
Handler: _Replication_SendCompleted_Handler,
|
||||
},
|
||||
{
|
||||
MethodName: "HintMostRecentCommonAncestor",
|
||||
Handler: _Replication_HintMostRecentCommonAncestor_Handler,
|
||||
},
|
||||
},
|
||||
Streams: []grpc.StreamDesc{},
|
||||
Metadata: "pdu.proto",
|
||||
}
|
||||
|
||||
func init() { proto.RegisterFile("pdu.proto", fileDescriptor_pdu_e59763dc61674a79) }
|
||||
func init() { proto.RegisterFile("pdu.proto", fileDescriptor_pdu_483c6918b7b3d747) }
|
||||
|
||||
var fileDescriptor_pdu_e59763dc61674a79 = []byte{
|
||||
// 892 bytes of a gzipped FileDescriptorProto
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|
||||
var fileDescriptor_pdu_483c6918b7b3d747 = []byte{
|
||||
// 833 bytes of a gzipped FileDescriptorProto
|
||||
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|
||||
0x69, 0x35, 0x2f, 0x35, 0xb9, 0x4b, 0x2f, 0xe3, 0xe7, 0xd0, 0x5d, 0xc6, 0xbb, 0xad, 0xad, 0xfd,
|
||||
0xba, 0x0a, 0x12, 0x6f, 0x01, 0x37, 0x2e, 0x2a, 0xda, 0xbe, 0x34, 0xcd, 0x2d, 0x5b, 0xda, 0xbe,
|
||||
0x8c, 0xc9, 0x95, 0x72, 0xa5, 0xb5, 0xd2, 0xa5, 0x52, 0x8c, 0x21, 0x2e, 0x9b, 0x1e, 0x91, 0x4f,
|
||||
0xda, 0x83, 0xfc, 0xe1, 0x71, 0x56, 0x8e, 0x94, 0x63, 0xbf, 0x9e, 0x82, 0x2c, 0x63, 0xc4, 0xd7,
|
||||
0x70, 0x22, 0x29, 0x8d, 0xa3, 0xb1, 0xe9, 0xda, 0xe1, 0x4c, 0xb3, 0xd2, 0xbb, 0xcc, 0xb5, 0xa0,
|
||||
0x71, 0x1f, 0xe3, 0x49, 0x31, 0x44, 0xf2, 0x1d, 0xf6, 0xcb, 0xbd, 0xe5, 0x18, 0x71, 0x5e, 0xab,
|
||||
0x8c, 0xde, 0x45, 0x9c, 0x2d, 0x24, 0xfc, 0x72, 0x4f, 0x2e, 0x91, 0x0b, 0x07, 0xf6, 0x17, 0xe9,
|
||||
0x88, 0x8f, 0xe1, 0x60, 0x14, 0x25, 0xb7, 0x79, 0x02, 0x2e, 0x1c, 0xfc, 0x48, 0xcc, 0xe1, 0x6d,
|
||||
0xd9, 0x35, 0xa5, 0x29, 0x3e, 0x2a, 0x83, 0x38, 0xef, 0xab, 0xab, 0xf1, 0x9d, 0x2a, 0xfb, 0x2a,
|
||||
0x5f, 0x9f, 0x0d, 0xa0, 0x1d, 0xe8, 0x28, 0x1f, 0x31, 0x97, 0x2a, 0xc9, 0x86, 0xa1, 0xa6, 0xfe,
|
||||
0x1e, 0x76, 0xa1, 0x73, 0x1d, 0xc6, 0x4c, 0x7d, 0x0b, 0x1d, 0xb0, 0x03, 0x3d, 0xa3, 0x7e, 0xeb,
|
||||
0xfc, 0xdf, 0x56, 0x3e, 0x00, 0x96, 0x8f, 0x40, 0x0f, 0xec, 0xfc, 0x60, 0x74, 0xfc, 0x22, 0x09,
|
||||
0xaf, 0x5c, 0x31, 0x7e, 0x03, 0x8f, 0xd7, 0xe7, 0x38, 0x23, 0xfa, 0xb5, 0x8f, 0x9f, 0x57, 0xc7,
|
||||
0x18, 0x47, 0xf0, 0xa4, 0xf9, 0x13, 0x80, 0x9e, 0xbf, 0xf5, 0xc3, 0xe2, 0x6d, 0xf7, 0x31, 0x3e,
|
||||
0x87, 0xfe, 0x66, 0xe9, 0xf1, 0xc4, 0x6f, 0x90, 0xb4, 0xd7, 0x84, 0x32, 0x7e, 0x07, 0x47, 0xb5,
|
||||
0xe2, 0xe1, 0xfb, 0x7e, 0x93, 0x10, 0xbc, 0x46, 0x98, 0xf1, 0x2b, 0x78, 0xb4, 0xd6, 0xe2, 0x78,
|
||||
0xe4, 0x6f, 0x8e, 0x0c, 0xaf, 0x06, 0xf1, 0x45, 0xe7, 0x6d, 0x3b, 0x9d, 0xcc, 0x7e, 0xdd, 0x37,
|
||||
0xff, 0x1f, 0xbe, 0xf8, 0x2f, 0x00, 0x00, 0xff, 0xff, 0x27, 0x95, 0xc1, 0x78, 0x4c, 0x08, 0x00,
|
||||
0x00,
|
||||
}
|
||||
|
||||
@@ -9,7 +9,6 @@ service Replication {
|
||||
rpc DestroySnapshots(DestroySnapshotsReq) returns (DestroySnapshotsRes);
|
||||
rpc ReplicationCursor(ReplicationCursorReq) returns (ReplicationCursorRes);
|
||||
rpc SendCompleted(SendCompletedReq) returns (SendCompletedRes);
|
||||
rpc HintMostRecentCommonAncestor(HintMostRecentCommonAncestorReq) returns (HintMostRecentCommonAncestorRes);
|
||||
// for Send and Recv, see package rpc
|
||||
}
|
||||
|
||||
@@ -126,19 +125,3 @@ message PingRes {
|
||||
// Echo must be PingReq.Message
|
||||
string Echo = 1;
|
||||
}
|
||||
|
||||
message HintMostRecentCommonAncestorReq {
|
||||
string Filesystem = 1;
|
||||
|
||||
// A copy of the FilesystemVersion on the sending side that the replication
|
||||
// algorithm identified as a shared most recent common version between sending
|
||||
// and receiving side.
|
||||
//
|
||||
// If nil, this is an indication that the replication algorithm could not
|
||||
// find a common ancestor between the two sides.
|
||||
// NOTE: nilness does not mean that replication never happened - there could
|
||||
// as well be a replication conflict. thus, dont' jump to conclusions too
|
||||
// rapidly here.
|
||||
FilesystemVersion SenderVersion = 2;
|
||||
}
|
||||
message HintMostRecentCommonAncestorRes {}
|
||||
@@ -33,7 +33,6 @@ type Endpoint interface {
|
||||
ListFilesystemVersions(ctx context.Context, req *pdu.ListFilesystemVersionsReq) (*pdu.ListFilesystemVersionsRes, error)
|
||||
DestroySnapshots(ctx context.Context, req *pdu.DestroySnapshotsReq) (*pdu.DestroySnapshotsRes, error)
|
||||
WaitForConnectivity(ctx context.Context) error
|
||||
HintMostRecentCommonAncestor(context.Context, *pdu.HintMostRecentCommonAncestorReq) (*pdu.HintMostRecentCommonAncestorRes, error)
|
||||
}
|
||||
|
||||
type Sender interface {
|
||||
@@ -359,43 +358,6 @@ func (fs *Filesystem) doPlanning(ctx context.Context) ([]*Step, error) {
|
||||
log(ctx).WithField("token", resumeToken).Debug("decode resume token")
|
||||
}
|
||||
|
||||
// give both sides a hint about how far prior replication attempts got
|
||||
// This serves as a cummulative variant of SendCompleted and can be useful
|
||||
// for example to release stale holds from an earlier (interrupted) replication.
|
||||
// TODO FIXME: enqueue this as a replication step instead of doing it here during planning
|
||||
// then again, the step should run regardless of planning success
|
||||
// so maybe a separate phase before PLANNING, then?
|
||||
path, conflict := IncrementalPath(rfsvs, sfsvs)
|
||||
var sender_mrca *pdu.FilesystemVersion
|
||||
if conflict == nil && len(path) > 0 {
|
||||
sender_mrca = path[0] // shadow
|
||||
}
|
||||
// yes, sender_mrca may be nil, indicating that we do not have an mrca
|
||||
{
|
||||
var wg sync.WaitGroup
|
||||
doHint := func(ep Endpoint, name string) {
|
||||
defer wg.Done()
|
||||
ctx, endTask := trace.WithTask(ctx, "hint-mrca-"+name)
|
||||
defer endTask()
|
||||
|
||||
log := log(ctx).WithField("to_side", name).
|
||||
WithField("sender_mrca", sender_mrca.String())
|
||||
log.Debug("hint most recent common ancestor")
|
||||
hint := &pdu.HintMostRecentCommonAncestorReq{
|
||||
Filesystem: fs.Path,
|
||||
SenderVersion: sender_mrca,
|
||||
}
|
||||
_, err := ep.HintMostRecentCommonAncestor(ctx, hint)
|
||||
if err != nil {
|
||||
log.WithError(err).Error("error hinting most recent common ancestor")
|
||||
}
|
||||
}
|
||||
wg.Add(2)
|
||||
go doHint(fs.sender, "sender")
|
||||
go doHint(fs.receiver, "receiver")
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
var steps []*Step
|
||||
// build the list of replication steps
|
||||
//
|
||||
|
||||
Reference in New Issue
Block a user