client

package
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 Go to latest Published: Dec 12, 2017 License: Apache-2.0 Imports: 12 Imported by: 0

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.

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.

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.

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.

Some of the code below came from https://github.com/digitalocean/ceph_exporter which has the same 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.

Some of the code below came from https://github.com/digitalocean/ceph_exporter which has the same 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.

Some of the code below came from https://github.com/digitalocean/ceph_exporter which has the same 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.

Some of the code below came from https://github.com/digitalocean/ceph_exporter which has the same 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.

Some of the code below came from https://github.com/digitalocean/ceph_exporter which has the same license.

Index

Constants

View Source 
const (
	AdminUsername = "client.admin"
	CephTool      = "ceph"
	RBDTool       = "rbd"
	CrushTool     = "crushtool"
)
View Source 
const (
	// CephHealthOK denotes the status of ceph cluster when healthy.
	CephHealthOK = "HEALTH_OK"

	// CephHealthWarn denotes the status of ceph cluster when unhealthy but recovering.
	CephHealthWarn = "HEALTH_WARN"

	// CephHealthErr denotes the status of ceph cluster when unhealthy but usually needs
	// manual intervention.
	CephHealthErr = "HEALTH_ERR"
)
View Source 
const (
	ImageMinSize = uint64(1048576) // 1 MB
)

Variables

This section is empty.

Functions

func AppendAdminConnectionArgs 

func AppendAdminConnectionArgs(args []string, configDir, clusterName string) []string

func AuthAdd added in v0.6.0 

func AuthAdd(context *clusterd.Context, clusterName, name, keyringPath string, caps []string) error

AuthAdd will create a new user with the given capabilities and using the already generated keyring found at the given keyring path. This should not be used when the user may already exist.

func AuthDelete 

func AuthDelete(context *clusterd.Context, clusterName, name string) error

AuthDelete will delete the given user.

func AuthGetKey 

func AuthGetKey(context *clusterd.Context, clusterName, name string) (string, error)

AuthGetKey gets the key for the given user.

func AuthGetOrCreate added in v0.6.0 

func AuthGetOrCreate(context *clusterd.Context, clusterName, name, keyringPath string, caps []string) error

AuthGetOrCreate will either get or create a user with the given capabilities. The keyring for the user will be written to the given keyring path.

func AuthGetOrCreateKey 

func AuthGetOrCreateKey(context *clusterd.Context, clusterName, name string, caps []string) (string, error)

AuthGetOrCreateKey gets or creates the key for the given user.

func CreateDefaultCrushMap 

func CreateDefaultCrushMap(context *clusterd.Context, clusterName string) (string, error)

func CreateErasureCodeProfile 

func CreateErasureCodeProfile(context *clusterd.Context, clusterName string, config model.ErasureCodedPoolConfig, name, failureDomain string) error

func CreateFilesystem 

func CreateFilesystem(context *clusterd.Context, clusterName, name, metadataPool string, dataPools []string, activeMDSCount int32) error

func CreatePool 

func CreatePool(context *clusterd.Context, clusterName string, newPool CephStoragePoolDetails) error

func CreatePoolForApp added in v0.5.1 

func CreatePoolForApp(context *clusterd.Context, clusterName string, newPool CephStoragePoolDetails, appName string) error

func CreatePoolWithProfile added in v0.6.0 

func CreatePoolWithProfile(context *clusterd.Context, clusterName string, newPoolReq model.Pool, appName string) error

func DeleteImage 

func DeleteImage(context *clusterd.Context, clusterName, name, poolName string) error

func DeletePool added in v0.6.0 

func DeletePool(context *clusterd.Context, clusterName string, name string) error

func ExecuteCephCommand 

func ExecuteCephCommand(context *clusterd.Context, clusterName string, args []string) ([]byte, error)

func ExecuteCephCommandPlain 

func ExecuteCephCommandPlain(context *clusterd.Context, clusterName string, args []string) ([]byte, error)

func ExecuteCephCommandPlainNoOutputFile added in v0.6.0 

func ExecuteCephCommandPlainNoOutputFile(context *clusterd.Context, clusterName string, args []string) ([]byte, error)

func ExecuteRBDCommand 

func ExecuteRBDCommand(context *clusterd.Context, clusterName string, args []string) ([]byte, error)

func ExecuteRBDCommandNoFormat 

func ExecuteRBDCommandNoFormat(context *clusterd.Context, clusterName string, args []string) ([]byte, error)

func ExecuteRBDCommandWithTimeout added in v0.6.0 

func ExecuteRBDCommandWithTimeout(context *clusterd.Context, clusterName string, args []string) (string, error)

func FailMDS 

func FailMDS(context *clusterd.Context, clusterName string, gid int) error

func FormatLocation 

func FormatLocation(location, hostName string) ([]string, error)

func GetPoolNamesByID added in v0.6.0 

func GetPoolNamesByID(context *clusterd.Context, clusterName string) (map[int]string, error)

func GetPools added in v0.6.0 

func GetPools(context *clusterd.Context, clusterName string) ([]model.Pool, error)

func HealthToModelHealthStatus 

func HealthToModelHealthStatus(cephHealth string) model.HealthStatus

func ListErasureCodeProfiles 

func ListErasureCodeProfiles(context *clusterd.Context, clusterName string) ([]string, error)

func MapImage added in v0.6.0 

func MapImage(context *clusterd.Context, imageName, poolName, clusterName, keyring, monitors string) error

MapImage maps an RBD image using admin cephfx and returns the device path

func MarkFilesystemAsDown 

func MarkFilesystemAsDown(context *clusterd.Context, clusterName string, fsName string) error

func RemoveFilesystem 

func RemoveFilesystem(context *clusterd.Context, clusterName, fsName string) error

func SetCrushMap 

func SetCrushMap(context *clusterd.Context, clusterName, compiledMap string) (string, error)

func SetCrushTunables 

func SetCrushTunables(context *clusterd.Context, clusterName, profile string) (string, error)

func SetPoolProperty 

func SetPoolProperty(context *clusterd.Context, clusterName, name, propName string, propVal string) error

func StatusPlain 

func StatusPlain(context *clusterd.Context, clusterName string) ([]byte, error)

func UnMapImage added in v0.6.0 

func UnMapImage(context *clusterd.Context, imageName, poolName, clusterName, keyring, monitors string, force bool) error

UnMapImage unmap an RBD image from the node

Types

type CephBlockImage 

type CephBlockImage struct {
	Name   string `json:"image"`
	Size   uint64 `json:"size"`
	Format int    `json:"format"`
}

func CreateImage 

func CreateImage(context *clusterd.Context, clusterName, name, poolName string, size uint64) (*CephBlockImage, error)

func ListImages 

func ListImages(context *clusterd.Context, clusterName, poolName string) ([]CephBlockImage, error)

type CephErasureCodeProfile 

type CephErasureCodeProfile struct {
	DataChunkCount   uint   `json:"k,string"`
	CodingChunkCount uint   `json:"m,string"`
	Plugin           string `json:"plugin"`
	Technique        string `json:"technique"`
	FailureDomain    string `json:"crush-failure-domain"`
}

func GetErasureCodeProfileDetails 

func GetErasureCodeProfileDetails(context *clusterd.Context, clusterName, name string) (CephErasureCodeProfile, error)

type CephFilesystem 

type CephFilesystem struct {
	Name           string   `json:"name"`
	MetadataPool   string   `json:"metadata_pool"`
	MetadataPoolID int      `json:"metadata_pool_id"`
	DataPools      []string `json:"data_pools"`
	DataPoolIDs    []int    `json:"data_pool_ids"`
}

func ListFilesystems 

func ListFilesystems(context *clusterd.Context, clusterName string) ([]CephFilesystem, error)

type CephFilesystemDetails 

type CephFilesystemDetails struct {
	ID     int    `json:"id"`
	MDSMap MDSMap `json:"mdsmap"`
}

func GetFilesystem 

func GetFilesystem(context *clusterd.Context, clusterName string, fsName string) (*CephFilesystemDetails, error)

type CephStatus 

type CephStatus struct {
	Health        HealthStatus `json:"health"`
	FSID          string       `json:"fsid"`
	ElectionEpoch int          `json:"election_epoch"`
	Quorum        []int        `json:"quorum"`
	QuorumNames   []string     `json:"quorum_names"`
	MonMap        MonMap       `json:"monmap"`
	OsdMap        struct {
		OsdMap OsdMap `json:"osdmap"`
	} `json:"osdmap"`
	PgMap  PgMap  `json:"pgmap"`
	MgrMap MgrMap `json:"mgrmap"`
}

func Status 

func Status(context *clusterd.Context, clusterName string) (CephStatus, error)

type CephStoragePoolDetails 

type CephStoragePoolDetails struct {
	Name               string `json:"pool"`
	Number             int    `json:"pool_id"`
	Size               uint   `json:"size"`
	ErasureCodeProfile string `json:"erasure_code_profile"`
	FailureDomain      string
}

func GetPoolDetails 

func GetPoolDetails(context *clusterd.Context, clusterName, name string) (CephStoragePoolDetails, error)

func ModelPoolToCephPool added in v0.6.0 

func ModelPoolToCephPool(modelPool model.Pool) CephStoragePoolDetails

type CephStoragePoolStats 

type CephStoragePoolStats struct {
	Pools []struct {
		Name  string `json:"name"`
		ID    int    `json:"id"`
		Stats struct {
			BytesUsed    float64 `json:"bytes_used"`
			RawBytesUsed float64 `json:"raw_bytes_used"`
			MaxAvail     float64 `json:"max_avail"`
			Objects      float64 `json:"objects"`
			DirtyObjects float64 `json:"dirty"`
			ReadIO       float64 `json:"rd"`
			ReadBytes    float64 `json:"rd_bytes"`
			WriteIO      float64 `json:"wr"`
			WriteBytes   float64 `json:"wr_bytes"`
		} `json:"stats"`
	} `json:"pools"`
}

func GetPoolStats 

func GetPoolStats(context *clusterd.Context, clusterName string) (*CephStoragePoolStats, error)

type CephStoragePoolSummary 

type CephStoragePoolSummary struct {
	Name   string `json:"poolname"`
	Number int    `json:"poolnum"`
}

func ListPoolSummaries 

func ListPoolSummaries(context *clusterd.Context, clusterName string) ([]CephStoragePoolSummary, error)

type CephUsage 

type CephUsage struct {
	Stats struct {
		TotalBytes      json.Number `json:"total_bytes"`
		TotalUsedBytes  json.Number `json:"total_used_bytes"`
		TotalAvailBytes json.Number `json:"total_avail_bytes"`
		TotalObjects    json.Number `json:"total_objects"`
	} `json:"stats"`
}

func Usage 

func Usage(context *clusterd.Context, clusterName string) (*CephUsage, error)

type CheckMessage 

type CheckMessage struct {
	Severity string `json:"severity"`
	Summary  struct {
		Message string `json:"message"`
	} `json:"summary"`
}

type CrushMap added in v0.6.0 

type CrushMap struct {
	Devices []struct {
		ID    int    `json:"id"`
		Name  string `json:"name"`
		Class string `json:"class"`
	} `json:"devices"`
	Types []struct {
		ID   int    `json:"type_id"`
		Name string `json:"name"`
	} `json:"types"`
	Buckets []struct {
		ID       int    `json:"id"`
		Name     string `json:"name"`
		TypeID   int    `json:"type_id"`
		TypeName string `json:"type_name"`
		Weight   int    `json:"weight"`
		Alg      string `json:"alg"`
		Hash     string `json:"hash"`
		Items    []struct {
			ID     int `json:"id"`
			Weight int `json:"weight"`
			Pos    int `json:"pos"`
		} `json:"items"`
	}
	Rules []struct {
		ID      int    `json:"rule_id"`
		Name    string `json:"rule_name"`
		Ruleset int    `json:"ruleset"`
		Type    int    `json:"type"`
		MinSize int    `json:"min_size"`
		MaxSize int    `json:"max_size"`
		Steps   []struct {
			Operation string `json:"op"`
			Number    int    `json:"num"`
			Item      int    `json:"item"`
			ItemName  string `json:"item_name"`
			Type      string `json:"type"`
		} `json:"steps"`
	}
	Tunables struct {
	} `json:"tunables"`
}

func GetCrushMap 

func GetCrushMap(context *clusterd.Context, clusterName string) (CrushMap, error)

type HealthStatus 

type HealthStatus struct {
	Status string                  `json:"status"`
	Checks map[string]CheckMessage `json:"checks"`
}

type MDSInfo 

type MDSInfo struct {
	GID     int    `json:"gid"`
	Name    string `json:"name"`
	Rank    int    `json:"rank"`
	State   string `json:"state"`
	Address string `json:"addr"`
}

type MDSMap 

type MDSMap struct {
	FilesystemName string             `json:"fs_name"`
	Enabled        bool               `json:"enabled"`
	Root           int                `json:"root"`
	TableServer    int                `json:"tableserver"`
	MaxMDS         int                `json:"max_mds"`
	In             []int              `json:"in"`
	Up             map[string]int     `json:"up"`
	MetadataPool   int                `json:"metadata_pool"`
	DataPools      []int              `json:"data_pools"`
	Failed         []int              `json:"failed"`
	Damaged        []int              `json:"damaged"`
	Stopped        []int              `json:"stopped"`
	Info           map[string]MDSInfo `json:"info"`
}

type MgrMap 

type MgrMap struct {
	Epoch      int          `json:"epoch"`
	ActiveGID  int          `json:"active_gid"`
	ActiveName string       `json:"active_name"`
	ActiveAddr string       `json:"active_addr"`
	Available  bool         `json:"available"`
	Standbys   []MgrStandby `json:"standbys"`
}

type MgrStandby 

type MgrStandby struct {
	GID  int    `json:"gid"`
	Name string `json:"name"`
}

type MonMap 

type MonMap struct {
	Epoch        int           `json:"epoch"`
	FSID         string        `json:"fsid"`
	CreatedTime  string        `json:"created"`
	ModifiedTime string        `json:"modified"`
	Mons         []MonMapEntry `json:"mons"`
}

type MonMapEntry 

type MonMapEntry struct {
	Name    string `json:"name"`
	Rank    int    `json:"rank"`
	Address string `json:"addr"`
}

represents an entry in the monitor map

type MonStats 

type MonStats struct {
	Health struct {
		Status string                  `json:"status"`
		Checks map[string]CheckMessage `json:"checks"`
	} `json:"health"`
	Quorum []int `json:"quorum"`
}

MonStats is a subset of fields on the response from the mon command "status". These fields are focused on monitor stats.

func GetMonStats 

func GetMonStats(context *clusterd.Context, clusterName string) (*MonStats, error)

type MonStatusRequest 

type MonStatusRequest struct {
	Prefix string   `json:"prefix"`
	Format string   `json:"format"`
	ID     int      `json:"id"`
	Weight float32  `json:"weight"`
	Pool   string   `json:"pool"`
	Var    string   `json:"var"`
	Args   []string `json:"args"`
}

request to simplify deserialization of a test request

type MonStatusResponse 

type MonStatusResponse struct {
	Quorum []int `json:"quorum"`
	MonMap struct {
		Mons []MonMapEntry `json:"mons"`
	} `json:"monmap"`
}

represents the response from a mon_status mon_command (subset of all available fields, only marshal ones we care about)

func GetMonStatus 

func GetMonStatus(context *clusterd.Context, clusterName string, debug bool) (MonStatusResponse, error)

calls mon_status mon_command

type MonTimeSkewStatus 

type MonTimeSkewStatus struct {
	Skew    json.Number `json:"skew"`
	Latency json.Number `json:"latency"`
	Health  string      `json:"health"`
}

type MonTimeStatus 

type MonTimeStatus struct {
	Skew   map[string]MonTimeSkewStatus `json:"time_skew_status"`
	Checks struct {
		Epoch       int    `json:"epoch"`
		Round       int    `json:"round"`
		RoundStatus string `json:"round_status"`
	} `json:"timechecks"`
}

func GetMonTimeStatus 

func GetMonTimeStatus(context *clusterd.Context, clusterName string) (*MonTimeStatus, error)

type OSDDump 

type OSDDump struct {
	OSDs []struct {
		OSD json.Number `json:"osd"`
		Up  json.Number `json:"up"`
		In  json.Number `json:"in"`
	} `json:"osds"`
}

func GetOSDDump 

func GetOSDDump(context *clusterd.Context, clusterName string) (*OSDDump, error)

func (*OSDDump) StatusByID added in v0.6.0 

func (dump *OSDDump) StatusByID(id int64) (int64, int64, error)

StatusByID returns status and inCluster states for given OSD id

type OSDPerfStats 

type OSDPerfStats struct {
	PerfInfo []struct {
		ID    json.Number `json:"id"`
		Stats struct {
			CommitLatency json.Number `json:"commit_latency_ms"`
			ApplyLatency  json.Number `json:"apply_latency_ms"`
		} `json:"perf_stats"`
	} `json:"osd_perf_infos"`
}

func GetOSDPerfStats 

func GetOSDPerfStats(context *clusterd.Context, clusterName string) (*OSDPerfStats, error)

type OSDUsage 

type OSDUsage struct {
	OSDNodes []struct {
		Name        string      `json:"name"`
		CrushWeight json.Number `json:"crush_weight"`
		Depth       json.Number `json:"depth"`
		Reweight    json.Number `json:"reweight"`
		KB          json.Number `json:"kb"`
		UsedKB      json.Number `json:"kb_used"`
		AvailKB     json.Number `json:"kb_avail"`
		Utilization json.Number `json:"utilization"`
		Variance    json.Number `json:"var"`
		Pgs         json.Number `json:"pgs"`
	} `json:"nodes"`

	Summary struct {
		TotalKB      json.Number `json:"total_kb"`
		TotalUsedKB  json.Number `json:"total_kb_used"`
		TotalAvailKB json.Number `json:"total_kb_avail"`
		AverageUtil  json.Number `json:"average_utilization"`
	} `json:"summary"`
}

func GetOSDUsage 

func GetOSDUsage(context *clusterd.Context, clusterName string) (*OSDUsage, error)

type OsdMap 

type OsdMap struct {
	Epoch          int  `json:"epoch"`
	NumOsd         int  `json:"num_osds"`
	NumUpOsd       int  `json:"num_up_osds"`
	NumInOsd       int  `json:"num_in_osds"`
	Full           bool `json:"full"`
	NearFull       bool `json:"nearfull"`
	NumRemappedPgs int  `json:"num_remapped_pgs"`
}

type PgMap 

type PgMap struct {
	PgsByState            []PgStateEntry `json:"pgs_by_state"`
	Version               int            `json:"version"`
	NumPgs                int            `json:"num_pgs"`
	DataBytes             uint64         `json:"data_bytes"`
	UsedBytes             uint64         `json:"bytes_used"`
	AvailableBytes        uint64         `json:"bytes_avail"`
	TotalBytes            uint64         `json:"bytes_total"`
	ReadBps               uint64         `json:"read_bytes_sec"`
	WriteBps              uint64         `json:"write_bytes_sec"`
	ReadOps               uint64         `json:"read_op_per_sec"`
	WriteOps              uint64         `json:"write_op_per_sec"`
	RecoveryBps           uint64         `json:"recovering_bytes_per_sec"`
	RecoveryObjectsPerSec uint64         `json:"recovering_objects_per_sec"`
	RecoveryKeysPerSec    uint64         `json:"recovering_keys_per_sec"`
	CacheFlushBps         uint64         `json:"flush_bytes_sec"`
	CacheEvictBps         uint64         `json:"evict_bytes_sec"`
	CachePromoteBps       uint64         `json:"promote_op_per_sec"`
}

type PgStateEntry 

type PgStateEntry struct {
	StateName string `json:"state_name"`
	Count     int    `json:"count"`
}

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