partition

Documentation

Overview

Copyright 2016 The Rook Authors. All rights reserved.

Licensed 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.

Copyright 2016 The Rook Authors. All rights reserved.

Licensed 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.

Index

• Constants
• func PopulateCollocatedPerfSchemeEntry(entry *PerfSchemeEntry, device string, bluestoreConfig BluestoreConfig) error
• func PopulateDistributedPerfSchemeEntry(entry *PerfSchemeEntry, device string, metadataInfo *MetadataDeviceInfo, ...) error
• type BluestoreConfig
• type MetadataDeviceInfo
  • func NewMetadataDeviceInfo(device string) *MetadataDeviceInfo
  • func (m *MetadataDeviceInfo) GetPartitionArgs() []string
• type MetadataDevicePartition
• type PerfScheme
  • func LoadScheme(configDir string) (*PerfScheme, error)
  • func NewPerfScheme() *PerfScheme
  • func (s *PerfScheme) Save(configDir string) error
• type PerfSchemeEntry
  • func NewPerfSchemeEntry() *PerfSchemeEntry
  • func (e *PerfSchemeEntry) GetPartitionArgs() []string
  • func (e *PerfSchemeEntry) IsCollocated() bool
• type PerfSchemePartitionDetails

Constants

const (
	WalPartitionName      = "wal"
	DatabasePartitionName = "db"
	BlockPartitionName    = "block"

	UseRemainingSpace = -1

	WalDefaultSizeMB = 576
	DBDefaultSizeMB  = 20480
)

Functions

func PopulateCollocatedPerfSchemeEntry

func PopulateCollocatedPerfSchemeEntry(entry *PerfSchemeEntry, device string, bluestoreConfig BluestoreConfig) error

populates a partition scheme entry for an OSD where all its partitions are collocated on a single device

func PopulateDistributedPerfSchemeEntry

func PopulateDistributedPerfSchemeEntry(entry *PerfSchemeEntry, device string, metadataInfo *MetadataDeviceInfo,
	bluestoreConfig BluestoreConfig) error

populates a partition scheme entry for an OSD that will have distributed partitions: its metadata will live on a dedicated metadata device and its block data will live on a dedicated device

Types

type BluestoreConfig

type BluestoreConfig struct {
	WalSizeMB      int
	DatabaseSizeMB int
}

type MetadataDeviceInfo

type MetadataDeviceInfo struct {
	Device     string                     `json:"device"`
	DiskUUID   string                     `json:"diskUuid"`
	Partitions []*MetadataDevicePartition `json:"partitions"`
}

represents a dedicated metadata device and all of the partitions stored on it

func NewMetadataDeviceInfo

func NewMetadataDeviceInfo(device string) *MetadataDeviceInfo

func (*MetadataDeviceInfo) GetPartitionArgs

func (m *MetadataDeviceInfo) GetPartitionArgs() []string

type MetadataDevicePartition

type MetadataDevicePartition struct {
	ID            int       `json:"id"`
	OsdUUID       uuid.UUID `json:"osdUuid"`
	Name          string    `json:"name"`
	PartitionUUID string    `json:"partitionUuid"`
	SizeMB        int       `json:"sizeMB"`
	OffsetMB      int       `json:"offsetMB"`
}

representsa specific partition on a metadata device, including details about which OSD it belongs to

type PerfScheme

type PerfScheme struct {
	Metadata *MetadataDeviceInfo `json:"metadata"`
	Entries  []*PerfSchemeEntry  `json:"entries"`
}

top level representation of an overall performance oriented partition scheme, with a dedicated metadata device and entries for all OSDs that define where their partitions live

func LoadScheme

func LoadScheme(configDir string) (*PerfScheme, error)

Load the persistent partition info from the config directory.

func NewPerfScheme

func NewPerfScheme() *PerfScheme

func (*PerfScheme) Save

func (s *PerfScheme) Save(configDir string) error

Save the partition scheme to the config dir

type PerfSchemeEntry

type PerfSchemeEntry struct {
	ID         int                                    `json:"id"`
	OsdUUID    uuid.UUID                              `json:"osdUuid"`
	Partitions map[string]*PerfSchemePartitionDetails `json:"partitions"` // mapping of partition name to its details
}

represents an OSD and details about all of its partitions

func NewPerfSchemeEntry

func NewPerfSchemeEntry() *PerfSchemeEntry

func (*PerfSchemeEntry) GetPartitionArgs

func (e *PerfSchemeEntry) GetPartitionArgs() []string

func (*PerfSchemeEntry) IsCollocated

func (e *PerfSchemeEntry) IsCollocated() bool

determines if the given partition scheme entry is for a collocated OSD (all partitions on 1 device)

type PerfSchemePartitionDetails

type PerfSchemePartitionDetails struct {
	Device        string `json:"device"`
	DiskUUID      string `json:"diskUuid"`
	PartitionUUID string `json:"partitionUuid"`
	SizeMB        int    `json:"sizeMB"`
	OffsetMB      int    `json:"offsetMB"`
}

details for 1 OSD partition