sqlccl

package
v0.0.0-...-4ac3ba3 Latest Latest
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 Go to latest Published: Feb 28, 2017 License: Apache-2.0 Imports: 30 Imported by: 0

Documentation

Overview

Package sqlccl is a generated protocol buffer package.

It is generated from these files: 

cockroach/pkg/ccl/sqlccl/backup.proto

It has these top-level messages: 

BackupDescriptor

Index

Constants

View Source 
const (
	// BackupDescriptorName is the file name used for serialized
	// BackupDescriptor protos.
	BackupDescriptorName = "BACKUP"
)

Variables

View Source 
var (
	ErrInvalidLengthBackup = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowBackup   = fmt.Errorf("proto: integer overflow")
)

Functions

func Import 

func Import(
	ctx context.Context,
	db client.DB,
	startKey, endKey roachpb.Key,
	files []importFile,
	kr storageccl.KeyRewriter,
) error

Import loads some data in sstables into an empty range. Only the keys between startKey and endKey are loaded. Every row's key is rewritten to be for newTableID.

func MakeKeyRewriterForNewTableID 

func MakeKeyRewriterForNewTableID(
	desc *sqlbase.TableDescriptor, newTableID sqlbase.ID,
) storageccl.KeyRewriter

MakeKeyRewriterForNewTableID creates a KeyRewriter that rewrites all keys from a table to have a new tableID. For dependency reasons, the implementation of the matching is in storageccl, but the interesting constructor is here.

func MakeKeyRewriterForNewTableIDs 

func MakeKeyRewriterForNewTableIDs(
	tables []*sqlbase.TableDescriptor, newTableIDs map[sqlbase.ID]sqlbase.ID,
) (storageccl.KeyRewriter, error)

MakeKeyRewriterForNewTableIDs creates a KeyRewriter that rewrites all keys from a set of tables to have a new tableID. For dependency reasons, the implementation of the matching is in storageccl, but the interesting constructor is here.

func Restore 

func Restore(
	ctx context.Context, db client.DB, uris []string, targets parser.TargetList,
) ([]sqlbase.TableDescriptor, error)

Restore imports a SQL table (or tables) from sets of non-overlapping sstable files.

func ValidatePreviousBackups 

func ValidatePreviousBackups(ctx context.Context, uris []string) (hlc.Timestamp, error)

ValidatePreviousBackups checks that the timestamps of previous backups are consistent. The most recently backed-up time is returned.

TODO(dan): This should call into restoreTablesRequests instead to get the full validation logic.

Types

type BackupDescriptor 

type BackupDescriptor struct {
	StartTime cockroach_util_hlc.Timestamp `protobuf:"bytes,1,opt,name=start_time,json=startTime" json:"start_time"`
	EndTime   cockroach_util_hlc.Timestamp `protobuf:"bytes,2,opt,name=end_time,json=endTime" json:"end_time"`
	// Spans contains the spans requested for backup. The keyranges covered by
	// `files` may be a subset of this if there were ranges with no changes since
	// the last backup.
	Spans       []cockroach_roachpb1.Span           `protobuf:"bytes,3,rep,name=spans" json:"spans"`
	Files       []BackupDescriptor_File             `protobuf:"bytes,4,rep,name=files" json:"files"`
	Descriptors []cockroach_sql_sqlbase1.Descriptor `protobuf:"bytes,5,rep,name=descriptors" json:"descriptors"`
	DataSize    int64                               `protobuf:"varint,6,opt,name=data_size,json=dataSize,proto3" json:"data_size,omitempty"`
	Dir         cockroach_roachpb3.ExportStorage    `protobuf:"bytes,7,opt,name=dir" json:"dir"`
}

BackupDescriptor represents a consistent snapshot of ranges.

Each range snapshot includes a path to data that is a diff of the data in that key range between a start and end timestamp. The end timestamp of all ranges in a backup is the same, but the start may vary (to allow individual tables to be backed up on different schedules).

func Backup 

func Backup(
	ctx context.Context,
	db client.DB,
	uri string,
	targets parser.TargetList,
	startTime, endTime hlc.Timestamp,
) (BackupDescriptor, error)

Backup exports a snapshot of every kv entry into ranged sstables.

The output is an sstable per range with files in the following locations:

  • <dir>/<unique_int>.sst
  • <dir> is given by the user and may be cloud storage
  • Each file contains data for a key range that doesn't overlap with any other file.

func Load 

func Load(
	ctx context.Context,
	db *gosql.DB,
	r io.Reader,
	database, uri string,
	ts hlc.Timestamp,
	loadChunkBytes int64,
) (BackupDescriptor, error)

Load converts r into SSTables and backup descriptors. database is the name of the database into which the SSTables will eventually be written. uri is the storage location. ts is the time at which the MVCC data will be set. loadChunkBytes is the size at which to create a new SSTable (which will translate into a new range during restore); set to 0 to use the zone's default range max / 2.

func ReadBackupDescriptor 

func ReadBackupDescriptor(
	ctx context.Context, dir storageccl.ExportStorage,
) (BackupDescriptor, error)

ReadBackupDescriptor reads and unmarshals a BackupDescriptor from given base.

func (*BackupDescriptor) Descriptor 

func (*BackupDescriptor) Descriptor() ([]byte, []int)

func (*BackupDescriptor) Marshal 

func (m *BackupDescriptor) Marshal() (dAtA []byte, err error)

func (*BackupDescriptor) MarshalTo 

func (m *BackupDescriptor) MarshalTo(dAtA []byte) (int, error)

func (*BackupDescriptor) ProtoMessage 

func (*BackupDescriptor) ProtoMessage()

func (*BackupDescriptor) Reset 

func (m *BackupDescriptor) Reset()

func (*BackupDescriptor) Size 

func (m *BackupDescriptor) Size() (n int)

func (*BackupDescriptor) String 

func (m *BackupDescriptor) String() string

func (*BackupDescriptor) Unmarshal 

func (m *BackupDescriptor) Unmarshal(dAtA []byte) error

type BackupDescriptor_File 

type BackupDescriptor_File struct {
	Span cockroach_roachpb1.Span `protobuf:"bytes,1,opt,name=span" json:"span"`
	Path string                  `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
	CRC  uint32                  `protobuf:"varint,3,opt,name=crc,proto3" json:"crc,omitempty"`
}

BackupDescriptor_File represents a file that contains the diff for a key range between two timestamps.

func (*BackupDescriptor_File) Descriptor 

func (*BackupDescriptor_File) Descriptor() ([]byte, []int)

func (*BackupDescriptor_File) Marshal 

func (m *BackupDescriptor_File) Marshal() (dAtA []byte, err error)

func (*BackupDescriptor_File) MarshalTo 

func (m *BackupDescriptor_File) MarshalTo(dAtA []byte) (int, error)

func (*BackupDescriptor_File) ProtoMessage 

func (*BackupDescriptor_File) ProtoMessage()

func (*BackupDescriptor_File) Reset 

func (m *BackupDescriptor_File) Reset()

func (*BackupDescriptor_File) Size 

func (m *BackupDescriptor_File) Size() (n int)

func (*BackupDescriptor_File) String 

func (m *BackupDescriptor_File) String() string

func (*BackupDescriptor_File) Unmarshal 

func (m *BackupDescriptor_File) Unmarshal(dAtA []byte) error

Source Files

View all Source files

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