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Add index by week number to Elasticsearch output (#3490)

This commit is contained in:
Leandro Piccilli 2017-11-20 23:22:29 +01:00 committed by Daniel Nelson
parent db8e767f1f
commit 4d1bc620b2
3 changed files with 19 additions and 5 deletions
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3
plugins/outputs/elasticsearch/README.md
View File

@ -172,6 +172,7 @@ This plugin will format the events in the following way:
# %m - month (01..12)
# %d - day of month (e.g., 01)
# %H - hour (00..23)
# %V - week of the year (ISO week) (01..53)
index_name = "telegraf-%Y.%m.%d" # required.
## Optional SSL Config
@ -220,6 +221,6 @@ Integer values collected that are bigger than 2^63 and smaller than 1e21 (or in
```{"error":{"root_cause":[{"type":"mapper_parsing_exception","reason":"failed to parse"}],"type":"mapper_parsing_exception","reason":"failed to parse","caused_by":{"type":"illegal_state_exception","reason":"No matching token for number_type [BIG_INTEGER]"}},"status":400}```
The correct field mapping will be created on the telegraf index as soon as a supported JSON value is received by Elasticsearch, and subsequent insertions will work because the field mapping will already exist.
The correct field mapping will be created on the telegraf index as soon as a supported JSON value is received by Elasticsearch, and subsequent insertions will work because the field mapping will already exist.
This issue is caused by the way Elasticsearch tries to detect integer fields, and by how golang encodes numbers in JSON. There is no clear workaround for this at the moment.

16
plugins/outputs/elasticsearch/elasticsearch.go
View File

@ -3,15 +3,16 @@ package elasticsearch
import (
"context"
"fmt"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/plugins/outputs"
"gopkg.in/olivere/elastic.v5"
"log"
"net/http"
"strconv"
"strings"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/plugins/outputs"
"gopkg.in/olivere/elastic.v5"
)
type Elasticsearch struct {
@ -58,6 +59,7 @@ var sampleConfig = `
# %m - month (01..12)
# %d - day of month (e.g., 01)
# %H - hour (00..23)
# %V - week of the year (ISO week) (01..53)
index_name = "telegraf-%Y.%m.%d" # required.
## Optional SSL Config
@ -301,6 +303,7 @@ func (a *Elasticsearch) GetIndexName(indexName string, eventTime time.Time) stri
"%m", eventTime.UTC().Format("01"),
"%d", eventTime.UTC().Format("02"),
"%H", eventTime.UTC().Format("15"),
"%V", getISOWeek(eventTime.UTC()),
)
indexName = dateReplacer.Replace(indexName)
@ -310,6 +313,11 @@ func (a *Elasticsearch) GetIndexName(indexName string, eventTime time.Time) stri
}
func getISOWeek(eventTime time.Time) string {
_, week := eventTime.ISOWeek()
return strconv.Itoa(week)
}
func (a *Elasticsearch) SampleConfig() string {
return sampleConfig
}

5
plugins/outputs/elasticsearch/elasticsearch_test.go
View File

@ -120,6 +120,11 @@ func TestGetIndexName(t *testing.T) {
"indexname-%y-%m",
"indexname-14-12",
},
{
time.Date(2014, 12, 01, 23, 30, 00, 00, time.UTC),
"indexname-%Y-%V",
"indexname-2014-49",
},
}
for _, test := range tests {
indexName := e.GetIndexName(test.IndexName, test.EventTime)