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Fix SqliteSink

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This commit is contained in:
Thomas Roehl 2022-01-31 13:24:39 +01:00
parent 4195786242
commit 0ca87ea0be
3 changed files with 189 additions and 87 deletions
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1
go.mod
View File

@ -14,6 +14,7 @@ require (
require (
github.com/PaesslerAG/gval v1.1.2
github.com/golang/protobuf v1.5.2 // indirect
github.com/mattn/go-sqlite3 v1.14.11
github.com/nats-io/nats-server/v2 v2.7.0 // indirect
google.golang.org/protobuf v1.27.1 // indirect
)

2
go.sum
View File

@ -54,6 +54,8 @@ github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope
github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/mattn/go-sqlite3 v1.14.11 h1:gt+cp9c0XGqe9S/wAHTL3n/7MqY+siPWgWJgqdsFrzQ=
github.com/mattn/go-sqlite3 v1.14.11/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/minio/highwayhash v1.0.1 h1:dZ6IIu8Z14VlC0VpfKofAhCy74wu/Qb5gcn52yWoz/0=
github.com/minio/highwayhash v1.0.1/go.mod h1:BQskDq+xkJ12lmlUUi7U0M5Swg3EWR+dLTk+kldvVxY=
github.com/nats-io/jwt/v2 v2.2.1-0.20220113022732-58e87895b296 h1:vU9tpM3apjYlLLeY23zRWJ9Zktr5jp+mloR942LEOpY=

233
sinks/sqliteSink.go
View File

@ -2,20 +2,32 @@ package sinks
import (
"database/sql"
"errors"
"fmt"
_ "github.com/mattn/go-sqlite3"
"log"
"sort"
"strings"
"time"
"errors"
lp "github.com/influxdata/line-protocol"
cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
_ "github.com/mattn/go-sqlite3"
)
const SQLITE3_TIMESTAMP_NAME = `timestamp`
const SQLITE3_TIMESTAMP_TYPE = `TIMESTAMP NOT NULL`
type SqliteTable struct {
columns []string
coltypes []string
createQuery string
insertQuery string
primkeys []string
}
type SqliteSink struct {
Sink
sink
db *sql.DB
columns map[string][]string
tables map[string]SqliteTable
}
type StrList []string
@ -35,10 +47,10 @@ func (list StrList) Less(i, j int) bool {
return si_lower < sj_lower
}
func (s *SqliteSink) Init(config SinkConfig) error {
func (s *SqliteSink) Init(config sinkConfig) error {
var err error
if len(config.Database) == 0 {
return errors.New("Not all configuration variables set required by SqliteSink")
return errors.New("not all configuration variables set required by SqliteSink")
}
s.host = config.Host
s.port = config.Port
@ -47,99 +59,186 @@ func (s *SqliteSink) Init(config SinkConfig) error {
s.user = config.User
s.password = config.Password
log.Print("Opening Sqlite3 database ", s.database)
s.db, err = sql.Open("sqlite3", fmt.Sprintf("./%s.db", s.database))
uri := fmt.Sprintf("file:./%s.db", s.database)
if len(s.user) > 0 && len(s.password) > 0 {
uri += fmt.Sprintf("?_auth&_auth_user=%s&_auth_pass=%s", s.user, s.password)
}
s.db, err = sql.Open("sqlite3", uri)
if err != nil {
log.Fatal(err)
s.db = nil
return err
}
s.tables = make(map[string]SqliteTable)
return nil
}
func (s *SqliteSink) PrepareLists(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) ([]string, []string, []string) {
func getkeylist(point lp.CCMetric, include_meta bool) []string {
keys := make([]string, 0)
for k := range point.Tags() {
keys = append(keys, k)
}
if include_meta {
for k := range point.Meta() {
keys = append(keys, k)
}
}
for k := range point.Fields() {
keys = append(keys, k)
}
keys = append(keys, SQLITE3_TIMESTAMP_NAME)
sort.Sort(StrList(keys))
return keys
}
func getvaluelist(point lp.CCMetric, keys []string) []string {
values := make([]string, 0)
keytype := make([]string, 0)
keys = append(keys, "time")
values = append(values, fmt.Sprintf("%d", t.Unix()))
keytype = append(keytype, fmt.Sprintf("time INT8"))
for k, v := range tags {
keys = append(keys, k)
values = append(values, fmt.Sprintf("%q", v))
keytype = append(keytype, fmt.Sprintf("%s TEXT", k))
for _, key := range keys {
if key == SQLITE3_TIMESTAMP_NAME {
values = append(values, point.Time().String())
} else if val, ok := point.GetTag(key); ok {
values = append(values, val)
} else if val, ok := point.GetMeta(key); ok {
values = append(values, val)
} else if ival, ok := point.GetField(key); ok {
values = append(values, fmt.Sprintf("%v", ival))
} else {
values = append(values, "NULL")
}
for k, v := range fields {
keys = append(keys, k)
switch v.(type) {
case float32:
keytype = append(keytype, fmt.Sprintf("%s FLOAT", k))
values = append(values, fmt.Sprintf("%f", v))
}
return values
}
func gettypelist(point lp.CCMetric, keys []string) []string {
types := make([]string, 0)
for _, key := range keys {
if key == SQLITE3_TIMESTAMP_NAME {
types = append(types, SQLITE3_TIMESTAMP_TYPE)
continue
}
if point.HasTag(key) {
types = append(types, "TEXT")
continue
}
if point.HasMeta(key) {
types = append(types, "TEXT")
continue
}
ival, ok := point.GetField(key)
if ok {
switch ival.(type) {
case float64:
keytype = append(keytype, fmt.Sprintf("%s DOUBLE", k))
values = append(values, fmt.Sprintf("%f", v))
case int64:
keytype = append(keytype, fmt.Sprintf("%s INT8", k))
values = append(values, fmt.Sprintf("%d", v))
case int:
keytype = append(keytype, fmt.Sprintf("%s INT", k))
values = append(values, fmt.Sprintf("%d", v))
types = append(types, "DOUBLE")
case float32:
types = append(types, "FLOAT")
case string:
keytype = append(keytype, fmt.Sprintf("%s TEXT", k))
values = append(values, fmt.Sprintf("%q", v))
types = append(types, "TEXT")
case int:
types = append(types, "INT")
case int64:
types = append(types, "INT8")
}
}
sort.Sort(StrList(keytype))
return keytype, keys, values
}
return types
}
func Tags2Map(metric lp.MutableMetric) map[string]string {
tags := make(map[string]string)
for _, t := range metric.TagList() {
tags[t.Key] = t.Value
func getprimkey(keys []string) []string {
primkeys := make([]string, 0)
primkeys = append(primkeys, SQLITE3_TIMESTAMP_NAME)
for _, key := range keys {
switch key {
case "hostname":
primkeys = append(primkeys, "hostname")
case "type":
primkeys = append(primkeys, "type")
case "type-id":
primkeys = append(primkeys, "type-id")
}
return tags
}
return primkeys
}
func Fields2Map(metric lp.MutableMetric) map[string]interface{} {
fields := make(map[string]interface{})
for _, f := range metric.FieldList() {
fields[f.Key] = f.Value
func newCreateQuery(tablename string, keys []string, types []string, primkeys []string) string {
keytypelist := make([]string, 0)
for i, key := range keys {
keytypelist = append(keytypelist, fmt.Sprintf("%s %s", key, types[i]))
}
return fields
keytypelist = append(keytypelist, fmt.Sprintf("PRIMARY KEY (%s)", strings.Join(primkeys, ",")))
stmt := fmt.Sprintf("create table if not exists %s (%s);", tablename, keytypelist)
return stmt
}
func (s *SqliteSink) Write(point lp.MutableMetric) error {
func newInsertQuery(tablename string, keys []string) string {
v := strings.Repeat("?,", len(keys)) + "?"
stmt := fmt.Sprintf("insert into %s (%s) values(%s);", tablename, strings.Join(keys, ","), v)
return stmt
}
func (s *SqliteSink) Write(point lp.CCMetric) error {
if s.db != nil {
measurement := point.Name()
keytype, keys, values := s.PrepareLists(measurement, Tags2Map(point), Fields2Map(point), point.Time())
prim_key := []string{"time", "host"}
if measurement == "cpu" {
prim_key = append(prim_key, "cpu")
} else if measurement == "socket" {
prim_key = append(prim_key, "socket")
}
if tab, ok := s.tables[measurement]; !ok {
var tab SqliteTable
tab.columns = getkeylist(point, s.meta_as_tags)
tab.coltypes = gettypelist(point, tab.columns)
tab.primkeys = getprimkey(tab.columns)
tab.createQuery = newCreateQuery(measurement, tab.columns, tab.coltypes, tab.primkeys)
tab.insertQuery = newInsertQuery(measurement, tab.columns)
tx, err := s.db.Begin()
if err == nil {
c := fmt.Sprintf("create table if not exists %s (%s, PRIMARY KEY (%s));", measurement,
strings.Join(keytype, ","),
strings.Join(prim_key, ","))
i := fmt.Sprintf("insert into %s (%s) values(%s);", measurement, strings.Join(keys, ","), strings.Join(values, ","))
_, err = tx.Exec(c)
if err != nil {
log.Println(err)
cclog.ComponentError("SqliteSink", "Init DB session failed:", err.Error())
return err
}
_, err = tx.Exec(i)
_, err = tx.Exec(tab.createQuery)
if err != nil {
log.Println(err)
cclog.ComponentError("SqliteSink", "Execute CreateQuery failed:", err.Error())
return err
}
err = tx.Commit()
stmt, err := tx.Prepare(tab.insertQuery)
if err != nil {
log.Println(err)
cclog.ComponentError("SqliteSink", "Prepare InsertQuery failed:", err.Error())
return err
}
defer stmt.Close()
_, err = stmt.Exec(getvaluelist(point, tab.columns))
if err != nil {
cclog.ComponentError("SqliteSink", "Execute InsertQuery failed:", err.Error())
return err
}
tx.Commit()
s.tables[measurement] = tab
} else {
log.Println(err)
keys := getkeylist(point, s.meta_as_tags)
if len(keys) > len(tab.columns) {
cclog.ComponentDebug("SqliteSink", "Metric", measurement, "has different keys as creation keys, ignoring addition keys")
} else if len(keys) < len(tab.columns) {
cclog.ComponentDebug("SqliteSink", "Metric", measurement, "has different keys as creation keys, setting missing values with 'NULL'")
}
values := getvaluelist(point, tab.columns)
tx, err := s.db.Begin()
if err != nil {
cclog.ComponentError("SqliteSink", "Init DB session failed:", err.Error())
return err
}
stmt, err := tx.Prepare(tab.insertQuery)
if err != nil {
cclog.ComponentError("SqliteSink", "Prepare InsertQuery failed:", err.Error())
return err
}
defer stmt.Close()
_, err = stmt.Exec(values)
if err != nil {
cclog.ComponentError("SqliteSink", "Execute InsertQuery failed:", err.Error())
return err
}
tx.Commit()
}
}
return nil