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package shell
import (
"flag"
"fmt"
"strings"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"github.com/seaweedfs/seaweedfs/weed/storage/erasure_coding"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"io"
)
func init() {
Commands = append(Commands, &commandClusterStatus{})
}
type commandClusterStatus struct{}
type ClusterStatusPrinter struct {
writer io.Writer
locked bool
collections []string
topology *master_pb.TopologyInfo
volumeSizeLimitMb uint64
}
func (c *commandClusterStatus) Name() string {
return "cluster.status"
}
func (c *commandClusterStatus) Help() string {
return `outputs a quick overview of the cluster status`
}
func (c *commandClusterStatus) HasTag(CommandTag) bool {
return false
}
func (c *commandClusterStatus) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
flags := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
if err = flags.Parse(args); err != nil {
return err
}
collections, err := ListCollectionNames(commandEnv, true, true)
if err != nil {
return err
}
topology, volumeSizeLimitMb, err := collectTopologyInfo(commandEnv, 0)
if err != nil {
return err
}
sp := &ClusterStatusPrinter{
writer: writer,
locked: commandEnv.isLocked(),
collections: collections,
topology: topology,
volumeSizeLimitMb: volumeSizeLimitMb,
}
sp.Print()
return nil
}
// TODO: humanize figures in output
// TODO: add option to collect detailed file stats
func (sp *ClusterStatusPrinter) Print() {
sp.write("")
sp.printClusterInfo()
sp.printVolumeInfo()
sp.printStorageInfo()
}
func (sp *ClusterStatusPrinter) write(format string, a ...any) {
fmt.Fprintf(sp.writer, strings.TrimRight(format, "\r\n "), a...)
fmt.Fprint(sp.writer, "\n")
}
func (sp *ClusterStatusPrinter) printClusterInfo() {
dcs := len(sp.topology.DataCenterInfos)
racks := 0
nodes := 0
disks := 0
for _, dci := range sp.topology.DataCenterInfos {
racks += len(dci.RackInfos)
for _, ri := range dci.RackInfos {
for _, dni := range ri.DataNodeInfos {
nodes++
disks += len(dni.DiskInfos)
}
}
}
status := "unlocked"
if sp.locked {
status = "LOCKED"
}
sp.write("cluster:")
sp.write("\tid: %s", sp.topology.Id)
sp.write("\tstatus: %s", status)
sp.write("\tnodes: %d", nodes)
sp.write("\ttopology: %d DC(s), %d disk(s) on %d rack(s)", dcs, disks, racks)
sp.write("")
}
func (sp *ClusterStatusPrinter) printVolumeInfo() {
collections := len(sp.collections)
var maxVolumes uint64
volumes := map[needle.VolumeId]bool{}
ecVolumes := map[needle.VolumeId]bool{}
var replicas, roReplicas, rwReplicas, ecShards uint64
for _, dci := range sp.topology.DataCenterInfos {
for _, ri := range dci.RackInfos {
for _, dni := range ri.DataNodeInfos {
for _, di := range dni.DiskInfos {
maxVolumes += uint64(di.MaxVolumeCount)
for _, vi := range di.VolumeInfos {
vid := needle.VolumeId(vi.Id)
volumes[vid] = true
replicas++
if vi.ReadOnly {
roReplicas++
} else {
rwReplicas++
}
}
for _, eci := range di.EcShardInfos {
vid := needle.VolumeId(eci.Id)
ecVolumes[vid] = true
ecShards += uint64(erasure_coding.ShardBits(eci.EcIndexBits).ShardIdCount())
}
}
}
}
}
var roReplicasRatio, rwReplicasRatio, ecShardsPerVolume float64
if replicas != 0 {
roReplicasRatio = float64(roReplicas) / float64(replicas)
rwReplicasRatio = float64(rwReplicas) / float64(replicas)
}
if len(ecVolumes) != 0 {
ecShardsPerVolume = float64(ecShards) / float64(len(ecVolumes))
}
totalVolumes := len(volumes) + len(ecVolumes)
sp.write("volumes:")
sp.write("\ttotal: %d volumes on %d collections", totalVolumes, collections)
sp.write("\tmax size: %d bytes", sp.volumeSizeLimitMb*1024*1024)
sp.write("\tregular: %d/%d volumes on %d replicas, %d writable (%.02f%%), %d read-only (%.02f%%)", len(volumes), maxVolumes, replicas, rwReplicas, 100*rwReplicasRatio, roReplicas, 100*roReplicasRatio)
sp.write("\tEC: %d EC volumes on %d shards (%.02f shards/volume)", len(ecVolumes), ecShards, ecShardsPerVolume)
sp.write("")
}
func (sp *ClusterStatusPrinter) printStorageInfo() {
perVolumeSize := map[needle.VolumeId]uint64{}
perEcVolumeSize := map[needle.VolumeId]uint64{}
var rawVolumeSize, rawEcVolumeSize uint64
for _, dci := range sp.topology.DataCenterInfos {
for _, ri := range dci.RackInfos {
for _, dni := range ri.DataNodeInfos {
for _, di := range dni.DiskInfos {
for _, vi := range di.VolumeInfos {
vid := needle.VolumeId(vi.Id)
perVolumeSize[vid] = vi.Size
rawVolumeSize += vi.Size
}
for _, eci := range di.EcShardInfos {
vid := needle.VolumeId(eci.Id)
var size uint64
for _, ss := range eci.ShardSizes {
size += uint64(ss)
}
perEcVolumeSize[vid] += size
rawEcVolumeSize += size
}
}
}
}
}
// normalize EC logical volume sizes given shard settings
for vid := range perEcVolumeSize {
perEcVolumeSize[vid] = perEcVolumeSize[vid] * erasure_coding.DataShardsCount / erasure_coding.TotalShardsCount
}
var volumeSize, ecVolumeSize uint64
for _, s := range perVolumeSize {
volumeSize += s
}
for _, s := range perEcVolumeSize {
ecVolumeSize += s
}
totalSize := volumeSize + ecVolumeSize
sp.write("storage:")
sp.write("\ttotal: %d bytes", totalSize)
sp.write("\tregular volumes: %d bytes", volumeSize)
sp.write("\tEC volumes: %d bytes", ecVolumeSize)
sp.write("\traw: %d bytes on volume replicas, %d bytes on EC shard files", rawVolumeSize, rawEcVolumeSize)
sp.write("")
}
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