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health.go
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health.go
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/*
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
*
* 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.
*
*/
package madmin
import (
"context"
"encoding/json"
"io"
"net/http"
"net/url"
"time"
"github.com/shirou/gopsutil/v3/cpu"
diskhw "github.com/shirou/gopsutil/v3/disk"
"github.com/shirou/gopsutil/v3/host"
"github.com/shirou/gopsutil/v3/mem"
"github.com/shirou/gopsutil/v3/process"
"storj.io/minio/pkg/disk"
"storj.io/minio/pkg/net"
smart "storj.io/minio/pkg/smart"
)
// HealthInfo - MinIO cluster's health Info
type HealthInfo struct {
TimeStamp time.Time `json:"timestamp,omitempty"`
Error string `json:"error,omitempty"`
Perf PerfInfo `json:"perf,omitempty"`
Minio MinioHealthInfo `json:"minio,omitempty"`
Sys SysHealthInfo `json:"sys,omitempty"`
}
// SysHealthInfo - Includes hardware and system information of the MinIO cluster
type SysHealthInfo struct {
CPUInfo []ServerCPUInfo `json:"cpus,omitempty"`
DiskHwInfo []ServerDiskHwInfo `json:"drives,omitempty"`
OsInfo []ServerOsInfo `json:"osinfos,omitempty"`
MemInfo []ServerMemInfo `json:"meminfos,omitempty"`
ProcInfo []ServerProcInfo `json:"procinfos,omitempty"`
Error string `json:"error,omitempty"`
}
// ServerProcInfo - Includes host process lvl information
type ServerProcInfo struct {
Addr string `json:"addr"`
Processes []SysProcess `json:"processes,omitempty"`
Error string `json:"error,omitempty"`
}
// SysProcess - Includes process lvl information about a single process
type SysProcess struct {
Pid int32 `json:"pid"`
Background bool `json:"background,omitempty"`
CPUPercent float64 `json:"cpupercent,omitempty"`
Children []int32 `json:"children,omitempty"`
CmdLine string `json:"cmd,omitempty"`
ConnectionCount int `json:"connection_count,omitempty"`
CreateTime int64 `json:"createtime,omitempty"`
Cwd string `json:"cwd,omitempty"`
Exe string `json:"exe,omitempty"`
Gids []int32 `json:"gids,omitempty"`
IOCounters *process.IOCountersStat `json:"iocounters,omitempty"`
IsRunning bool `json:"isrunning,omitempty"`
MemInfo *process.MemoryInfoStat `json:"meminfo,omitempty"`
MemMaps *[]process.MemoryMapsStat `json:"memmaps,omitempty"`
MemPercent float32 `json:"mempercent,omitempty"`
Name string `json:"name,omitempty"`
Nice int32 `json:"nice,omitempty"`
NumCtxSwitches *process.NumCtxSwitchesStat `json:"numctxswitches,omitempty"`
NumFds int32 `json:"numfds,omitempty"`
NumThreads int32 `json:"numthreads,omitempty"`
PageFaults *process.PageFaultsStat `json:"pagefaults,omitempty"`
Parent int32 `json:"parent,omitempty"`
Ppid int32 `json:"ppid,omitempty"`
Status string `json:"status,omitempty"`
Tgid int32 `json:"tgid,omitempty"`
Times *cpu.TimesStat `json:"cputimes,omitempty"`
Uids []int32 `json:"uids,omitempty"`
Username string `json:"username,omitempty"`
}
// ServerMemInfo - Includes host virtual and swap mem information
type ServerMemInfo struct {
Addr string `json:"addr"`
SwapMem *mem.SwapMemoryStat `json:"swap,omitempty"`
VirtualMem *mem.VirtualMemoryStat `json:"virtualmem,omitempty"`
Error string `json:"error,omitempty"`
}
// ServerOsInfo - Includes host os information
type ServerOsInfo struct {
Addr string `json:"addr"`
Info *host.InfoStat `json:"info,omitempty"`
Sensors []host.TemperatureStat `json:"sensors,omitempty"`
Users []host.UserStat `json:"users,omitempty"`
Error string `json:"error,omitempty"`
}
// ServerCPUInfo - Includes cpu and timer stats of each node of the MinIO cluster
type ServerCPUInfo struct {
Addr string `json:"addr"`
CPUStat []cpu.InfoStat `json:"cpu,omitempty"`
TimeStat []cpu.TimesStat `json:"time,omitempty"`
Error string `json:"error,omitempty"`
}
// MinioHealthInfo - Includes MinIO confifuration information
type MinioHealthInfo struct {
Info InfoMessage `json:"info,omitempty"`
Config interface{} `json:"config,omitempty"`
Error string `json:"error,omitempty"`
}
// ServerDiskHwInfo - Includes usage counters, disk counters and partitions
type ServerDiskHwInfo struct {
Addr string `json:"addr"`
Usage []*diskhw.UsageStat `json:"usages,omitempty"`
Partitions []PartitionStat `json:"partitions,omitempty"`
Counters map[string]diskhw.IOCountersStat `json:"counters,omitempty"`
Error string `json:"error,omitempty"`
}
// PartitionStat - includes data from both shirou/psutil.diskHw.PartitionStat as well as SMART data
type PartitionStat struct {
Device string `json:"device"`
Mountpoint string `json:"mountpoint,omitempty"`
Fstype string `json:"fstype,omitempty"`
Opts string `json:"opts,omitempty"`
SmartInfo smart.Info `json:"smartInfo,omitempty"`
}
// PerfInfo - Includes Drive and Net perf info for the entire MinIO cluster
type PerfInfo struct {
DriveInfo []ServerDrivesInfo `json:"drives,omitempty"`
Net []ServerNetHealthInfo `json:"net,omitempty"`
NetParallel ServerNetHealthInfo `json:"net_parallel,omitempty"`
Error string `json:"error,omitempty"`
}
// ServerDrivesInfo - Drive info about all drives in a single MinIO node
type ServerDrivesInfo struct {
Addr string `json:"addr"`
Serial []DrivePerfInfo `json:"serial,omitempty"` // Drive perf info collected one drive at a time
Parallel []DrivePerfInfo `json:"parallel,omitempty"` // Drive perf info collected in parallel
Error string `json:"error,omitempty"`
}
// DrivePerfInfo - Stats about a single drive in a MinIO node
type DrivePerfInfo struct {
Path string `json:"endpoint"`
Latency disk.Latency `json:"latency,omitempty"`
Throughput disk.Throughput `json:"throughput,omitempty"`
Error string `json:"error,omitempty"`
}
// ServerNetHealthInfo - Network health info about a single MinIO node
type ServerNetHealthInfo struct {
Addr string `json:"addr"`
Net []NetPerfInfo `json:"net,omitempty"`
Error string `json:"error,omitempty"`
}
// NetPerfInfo - one-to-one network connectivity Stats between 2 MinIO nodes
type NetPerfInfo struct {
Addr string `json:"remote"`
Latency net.Latency `json:"latency,omitempty"`
Throughput net.Throughput `json:"throughput,omitempty"`
Error string `json:"error,omitempty"`
}
// HealthDataType - Typed Health data types
type HealthDataType string
// HealthDataTypes
const (
HealthDataTypePerfDrive HealthDataType = "perfdrive"
HealthDataTypePerfNet HealthDataType = "perfnet"
HealthDataTypeMinioInfo HealthDataType = "minioinfo"
HealthDataTypeMinioConfig HealthDataType = "minioconfig"
HealthDataTypeSysCPU HealthDataType = "syscpu"
HealthDataTypeSysDiskHw HealthDataType = "sysdiskhw"
HealthDataTypeSysDocker HealthDataType = "sysdocker" // is this really needed?
HealthDataTypeSysOsInfo HealthDataType = "sysosinfo"
HealthDataTypeSysLoad HealthDataType = "sysload" // provides very little info. Making it TBD
HealthDataTypeSysMem HealthDataType = "sysmem"
HealthDataTypeSysNet HealthDataType = "sysnet"
HealthDataTypeSysProcess HealthDataType = "sysprocess"
)
// HealthDataTypesMap - Map of Health datatypes
var HealthDataTypesMap = map[string]HealthDataType{
"perfdrive": HealthDataTypePerfDrive,
"perfnet": HealthDataTypePerfNet,
"minioinfo": HealthDataTypeMinioInfo,
"minioconfig": HealthDataTypeMinioConfig,
"syscpu": HealthDataTypeSysCPU,
"sysdiskhw": HealthDataTypeSysDiskHw,
"sysdocker": HealthDataTypeSysDocker,
"sysosinfo": HealthDataTypeSysOsInfo,
"sysload": HealthDataTypeSysLoad,
"sysmem": HealthDataTypeSysMem,
"sysnet": HealthDataTypeSysNet,
"sysprocess": HealthDataTypeSysProcess,
}
// HealthDataTypesList - List of Health datatypes
var HealthDataTypesList = []HealthDataType{
HealthDataTypePerfDrive,
HealthDataTypePerfNet,
HealthDataTypeMinioInfo,
HealthDataTypeMinioConfig,
HealthDataTypeSysCPU,
HealthDataTypeSysDiskHw,
HealthDataTypeSysDocker,
HealthDataTypeSysOsInfo,
HealthDataTypeSysLoad,
HealthDataTypeSysMem,
HealthDataTypeSysNet,
HealthDataTypeSysProcess,
}
// ServerHealthInfo - Connect to a minio server and call Health Info Management API
// to fetch server's information represented by HealthInfo structure
func (adm *AdminClient) ServerHealthInfo(ctx context.Context, healthDataTypes []HealthDataType, deadline time.Duration) <-chan HealthInfo {
respChan := make(chan HealthInfo)
go func() {
v := url.Values{}
v.Set("deadline",
deadline.Truncate(1*time.Second).String())
// start with all set to false
for _, d := range HealthDataTypesList {
v.Set(string(d), "false")
}
// only 'trueify' user provided values
for _, d := range healthDataTypes {
v.Set(string(d), "true")
}
var healthInfoMessage HealthInfo
healthInfoMessage.TimeStamp = time.Now()
resp, err := adm.executeMethod(ctx, "GET", requestData{
relPath: adminAPIPrefix + "/healthinfo",
queryValues: v,
})
defer closeResponse(resp)
if err != nil {
respChan <- HealthInfo{
Error: err.Error(),
}
close(respChan)
return
}
// Check response http status code
if resp.StatusCode != http.StatusOK {
respChan <- HealthInfo{
Error: httpRespToErrorResponse(resp).Error(),
}
return
}
// Unmarshal the server's json response
decoder := json.NewDecoder(resp.Body)
for {
err := decoder.Decode(&healthInfoMessage)
healthInfoMessage.TimeStamp = time.Now()
if err == io.EOF {
break
}
if err != nil {
respChan <- HealthInfo{
Error: err.Error(),
}
}
respChan <- healthInfoMessage
}
respChan <- healthInfoMessage
if v.Get(string(HealthDataTypeMinioInfo)) == "true" {
info, err := adm.ServerInfo(ctx)
if err != nil {
respChan <- HealthInfo{
Error: err.Error(),
}
return
}
healthInfoMessage.Minio.Info = info
respChan <- healthInfoMessage
}
close(respChan)
}()
return respChan
}
// GetTotalCapacity gets the total capacity a server holds.
func (s *ServerDiskHwInfo) GetTotalCapacity() (capacity uint64) {
for _, u := range s.Usage {
capacity += u.Total
}
return
}
// GetTotalFreeCapacity gets the total capacity that is free.
func (s *ServerDiskHwInfo) GetTotalFreeCapacity() (capacity uint64) {
for _, u := range s.Usage {
capacity += u.Free
}
return
}
// GetTotalUsedCapacity gets the total capacity used.
func (s *ServerDiskHwInfo) GetTotalUsedCapacity() (capacity uint64) {
for _, u := range s.Usage {
capacity += u.Used
}
return
}