forked from hhxsv5/go-redis-memory-analysis
-
Notifications
You must be signed in to change notification settings - Fork 0
/
analysis_connection.go
147 lines (126 loc) 路 3.14 KB
/
analysis_connection.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
package gorma
import (
"os"
"fmt"
"sort"
"strconv"
"strings"
"github.com/hhxsv5/go-redis-memory-analysis/storages"
)
type AnalysisConnection struct {
redis *storages.RedisClient
Reports DBReports
}
func NewAnalysisConnection(host string, port uint16, password string) (*AnalysisConnection, error) {
redis, err := storages.NewRedisClient(host, port, password)
if err != nil {
return nil, err
}
return &AnalysisConnection{redis, DBReports{}}, nil
}
func (analysis *AnalysisConnection) Close() {
if analysis.redis != nil {
analysis.redis.Close()
}
}
func (analysis AnalysisConnection) Start(delimiters []string) {
fmt.Println("Starting analysis")
match := "*[" + strings.Join(delimiters, "") + "]*"
databases, _ := analysis.redis.GetDatabases()
var (
cursor uint64
r Report
f float64
ttl int64
length uint64
sr SortBySizeReports
mr KeyReports
)
for db, _ := range databases {
fmt.Println("Analyzing db", db)
cursor = 0
mr = KeyReports{}
analysis.redis.Select(db)
for {
keys, _ := analysis.redis.Scan(&cursor, match, 3000)
fd, fp, tmp, nk := "", 0, 0, ""
for _, key := range keys {
fd, fp, tmp, nk, ttl = "", 0, 0, "", 0
for _, delimiter := range delimiters {
tmp = strings.Index(key, delimiter)
if tmp != -1 && (tmp < fp || fp == 0) {
fd, fp = delimiter, tmp
}
}
if fp == 0 {
continue
}
nk = key[0:fp] + fd + "*"
if _, ok := mr[nk]; ok {
r = mr[nk]
} else {
r = Report{nk, 0, 0, 0, 0}
}
ttl, _ = analysis.redis.Ttl(key)
switch ttl {
case -2:
continue
case -1:
r.NeverExpire++
r.Count++
default:
f = float64(r.AvgTtl*(r.Count-r.NeverExpire)+uint64(ttl)) / float64(r.Count+1-r.NeverExpire)
ttl, _ := strconv.ParseUint(fmt.Sprintf("%0.0f", f), 10, 64)
r.AvgTtl = ttl
r.Count++
}
length, _ = analysis.redis.SerializedLength(key)
r.Size += length
mr[nk] = r
}
if cursor == 0 {
break
}
}
//Sort by size
sr = SortBySizeReports{}
for _, report := range mr {
sr = append(sr, report)
}
sort.Sort(sr)
analysis.Reports[db] = sr
}
}
func (analysis AnalysisConnection) SaveReports(folder string) error {
fmt.Println("Saving the results of the analysis into", folder)
if _, err := os.Stat(folder); os.IsNotExist(err) {
os.MkdirAll(folder, os.ModePerm)
}
var (
str string
filename string
size float64
unit string
)
template := fmt.Sprintf("%s%sredis-analysis-%s%s", folder, string(os.PathSeparator), strings.Replace(analysis.redis.Id, ":", "-", -1), "-%d.csv")
for db, reports := range analysis.Reports {
filename = fmt.Sprintf(template, db)
fp, err := storages.NewFile(filename, os.O_CREATE|os.O_WRONLY, os.ModePerm)
if err != nil {
return err
}
fp.Append([]byte("Key,Count,Size,NeverExpire,AvgTtl(excluded never expire)\n"))
for _, value := range reports {
size, unit = HumanSize(value.Size)
str = fmt.Sprintf("%s,%d,%s,%d,%d\n",
value.Key,
value.Count,
fmt.Sprintf("%0.3f %s", size, unit),
value.NeverExpire,
value.AvgTtl)
fp.Append([]byte(str))
}
fp.Close()
}
return nil
}