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info.go
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/
info.go
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package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"sort"
"strings"
"text/tabwriter"
"github.com/influxdata/influxdb/tsdb"
)
func cmdInfo(path string) {
tstore := tsdb.NewStore(filepath.Join(path, "data"))
tstore.Logger = log.New(ioutil.Discard, "", log.LstdFlags)
tstore.EngineOptions.Config.Dir = filepath.Join(path, "data")
tstore.EngineOptions.Config.WALLoggingEnabled = false
tstore.EngineOptions.Config.WALDir = filepath.Join(path, "wal")
if err := tstore.Open(); err != nil {
fmt.Printf("Failed to open dir: %v\n", err)
os.Exit(1)
}
size, err := tstore.DiskSize()
if err != nil {
fmt.Printf("Failed to determine disk usage: %v\n", err)
}
// Summary stats
fmt.Printf("Shards: %d, Indexes: %d, Databases: %d, Disk Size: %d, Series: %d\n\n",
tstore.ShardN(), tstore.DatabaseIndexN(), len(tstore.Databases()), size, countSeries(tstore))
tw := tabwriter.NewWriter(os.Stdout, 16, 8, 0, '\t', 0)
fmt.Fprintln(tw, strings.Join([]string{"Shard", "DB", "Measurement", "Tags [#K/#V]", "Fields [Name:Type]", "Series"}, "\t"))
shardIDs := tstore.ShardIDs()
databases := tstore.Databases()
sort.Strings(databases)
for _, db := range databases {
index := tstore.DatabaseIndex(db)
measurements := index.Measurements()
sort.Sort(measurements)
for _, m := range measurements {
tags := m.TagKeys()
tagValues := 0
for _, tag := range tags {
tagValues += len(m.TagValues(tag))
}
fields := m.FieldNames()
sort.Strings(fields)
series := m.SeriesKeys()
sort.Strings(series)
sort.Sort(ShardIDs(shardIDs))
// Sample a point from each measurement to determine the field types
for _, shardID := range shardIDs {
shard := tstore.Shard(shardID)
codec := shard.FieldCodec(m.Name)
for _, field := range codec.Fields() {
ft := fmt.Sprintf("%s:%s", field.Name, field.Type)
fmt.Fprintf(tw, "%d\t%s\t%s\t%d/%d\t%d [%s]\t%d\n", shardID, db, m.Name, len(tags), tagValues,
len(fields), ft, len(series))
}
}
}
}
tw.Flush()
}
func countSeries(tstore *tsdb.Store) int {
var count int
for _, shardID := range tstore.ShardIDs() {
shard := tstore.Shard(shardID)
cnt, err := shard.SeriesCount()
if err != nil {
fmt.Printf("series count failed: %v\n", err)
continue
}
count += cnt
}
return count
}
// ShardIDs is a collection of UINT 64 that represent shard ids.
type ShardIDs []uint64
func (a ShardIDs) Len() int { return len(a) }
func (a ShardIDs) Less(i, j int) bool { return a[i] < a[j] }
func (a ShardIDs) Swap(i, j int) { a[i], a[j] = a[j], a[i] }