forked from Ilhasoft/rp-indexer
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathindexer.go
518 lines (443 loc) · 15.2 KB
/
indexer.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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
package indexer
import (
"bytes"
"database/sql"
_ "embed"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"sort"
"strings"
"time"
"github.com/nyaruka/gocommon/httpx"
log "github.com/sirupsen/logrus"
)
var batchSize = 500
var retryConfig *httpx.RetryConfig
func init() {
//setup httpx retry configuration
var retrycount = 5
var initialBackoff = 1 * time.Second
retryConfig = ElasticRetries(initialBackoff, retrycount)
}
func ElasticRetries(initialBackoff time.Duration, count int) *httpx.RetryConfig {
backoffs := make([]time.Duration, count)
backoffs[0] = initialBackoff
for i := 1; i < count; i++ {
backoffs[i] = backoffs[i-1] * 2
}
return &httpx.RetryConfig{Backoffs: backoffs, ShouldRetry: ShouldRetry}
}
func ShouldRetry(request *http.Request, response *http.Response, withDelay time.Duration) bool {
// 429 Too Many Requests is recoverable. Sometimes the server puts
// a Retry-After response header to indicate when the server is
// available to start processing request from client.
if response.StatusCode == http.StatusTooManyRequests {
return true
}
// check for unexpected EOF
bodyBytes, err := ioutil.ReadAll(response.Body)
response.Body.Close()
if err != nil {
log.WithError(err).Error("error reading ES response, retrying")
return true
}
response.Body = ioutil.NopCloser(bytes.NewBuffer(bodyBytes))
return false
}
// CreateNewIndex creates a new index for the passed in alias.
//
// Note that we do not create an index with the passed name, instead creating one
// based on the day, for example `contacts_2018_03_05`, then create an alias from
// that index to `contacts`.
//
// If the day-specific name already exists, we append a .1 or .2 to the name.
func CreateNewIndex(url string, alias string) (string, error) {
// create our day-specific name
physicalIndex := fmt.Sprintf("%s_%s", alias, time.Now().Format("2006_01_02"))
idx := 0
// check if it exists
for {
resp, err := http.Get(fmt.Sprintf("%s/%s", url, physicalIndex))
if err != nil {
return "", err
}
// not found, great, move on
if resp.StatusCode == http.StatusNotFound {
break
}
// was found, increase our index and try again
idx++
physicalIndex = fmt.Sprintf("%s_%s_%d", alias, time.Now().Format("2006_01_02"), idx)
}
// initialize our index
createURL := fmt.Sprintf("%s/%s?include_type_name=true", url, physicalIndex)
_, err := MakeJSONRequest(http.MethodPut, createURL, indexSettings, nil)
if err != nil {
return "", err
}
// all went well, return our physical index name
log.WithField("index", physicalIndex).Info("created index")
return physicalIndex, nil
}
// GetLastModified queries our index and finds the last modified contact, returning it
func GetLastModified(url string, index string) (time.Time, error) {
lastModified := time.Time{}
if index == "" {
return lastModified, fmt.Errorf("empty index passed to GetLastModified")
}
// get the newest document on our index
queryResponse := queryResponse{}
_, err := MakeJSONRequest(http.MethodPost, fmt.Sprintf("%s/%s/_search", url, index), lastModifiedQuery, &queryResponse)
if err != nil {
return lastModified, err
}
if len(queryResponse.Hits.Hits) > 0 {
lastModified = queryResponse.Hits.Hits[0].Source.ModifiedOn
}
return lastModified, nil
}
// FindPhysicalIndexes finds all the physical indexes for the passed in alias
func FindPhysicalIndexes(url string, alias string) []string {
indexResponse := infoResponse{}
_, err := MakeJSONRequest(http.MethodGet, fmt.Sprintf("%s/%s", url, alias), "", &indexResponse)
indexes := make([]string, 0)
// error could mean a variety of things, but we'll figure that out later
if err != nil {
return indexes
}
// our top level key is our physical index name
for key := range indexResponse {
indexes = a
8000
ppend(indexes, key)
}
// reverse sort order should put our newest index first
sort.Sort(sort.Reverse(sort.StringSlice(indexes)))
return indexes
}
// CleanupIndexes removes all indexes that are older than the currently active index
func CleanupIndexes(url string, alias string) error {
// find our current indexes
currents := FindPhysicalIndexes(url, alias)
// no current indexes? this a noop
if len(currents) == 0 {
return nil
}
// find all the current indexes
healthResponse := healthResponse{}
_, err := MakeJSONRequest(http.MethodGet, fmt.Sprintf("%s/%s", url, "_cluster/health?level=indices"), "", &healthResponse)
if err != nil {
return err
}
// for each active index, if it starts with our alias but is before our current index, remove it
for key := range healthResponse.Indices {
if strings.HasPrefix(key, alias) && strings.Compare(key, currents[0]) < 0 {
log.WithField("index", key).Info("removing old index")
_, err = MakeJSONRequest(http.MethodDelete, fmt.Sprintf("%s/%s", url, key), "", nil)
if err != nil {
return err
}
}
}
return nil
}
// MakeJSONRequest is a utility function to make a JSON request, optionally decoding the response into the passed in struct
func MakeJSONRequest(method string, url string, body string, jsonStruct interface{}) (*http.Response, error) {
req, _ := http.NewRequest(method, url, bytes.NewReader([]byte(body)))
req.Header.Add("Content-Type", "application/json")
resp, err := httpx.Do(http.DefaultClient, req, retryConfig, nil)
l := log.WithField("url", url).WithField("method", method).WithField("request", body)
if err != nil {
l.WithError(err).Error("error making ES request")
return resp, err
}
defer resp.Body.Close()
// if we have a body, try to decode it
jsonBody, err := ioutil.ReadAll(resp.Body)
if err != nil {
l.WithError(err).Error("error reading ES response")
return resp, err
}
l = l.WithField("response", string(jsonBody)).WithField("status", resp.StatusCode)
// error if we got a non-200
if resp.StatusCode != http.StatusOK {
l.WithError(err).Error("error reaching ES")
return resp, fmt.Errorf("received non 200 response %d: %s", resp.StatusCode, jsonBody)
}
if jsonStruct == nil {
l.Debug("ES request successful")
return resp, nil
}
err = json.Unmarshal(jsonBody, jsonStruct)
if err != nil {
l.WithError(err).Error("error unmarshalling ES response")
return resp, err
}
l.Debug("ES request successful")
return resp, nil
}
// IndexBatch indexes the batch of contacts
func IndexBatch(elasticURL string, index string, batch string) (int, int, error) {
response := indexResponse{}
indexURL := fmt.Sprintf("%s/%s/_bulk", elasticURL, index)
_, err := MakeJSONRequest(http.MethodPut, indexURL, batch, &response)
if err != nil {
return 0, 0, err
}
createdCount, deletedCount, conflictedCount := 0, 0, 0
for _, item := range response.Items {
if item.Index.ID != "" {
log.WithField("id", item.Index.ID).WithField("status", item.Index.Status).Debug("index response")
if item.Index.Status == 200 || item.Index.Status == 201 {
createdCount++
} else if item.Index.Status == 409 {
conflictedCount++
} else {
log.WithField("id", item.Index.ID).WithField("batch", batch).WithField("result", item.Index.Result).Error("error indexing contact")
}
} else if item.Delete.ID != "" {
log.WithField("id", item.Index.ID).WithField("status", item.Index.Status).Debug("delete response")
if item.Delete.Status == 200 {
deletedCount++
} else if item.Delete.Status == 409 {
conflictedCount++
}
} else {
log.Error("unparsed item in response")
}
}
log.WithField("created", createdCount).WithField("deleted", deletedCount).WithField("conflicted", conflictedCount).Debug("indexed batch")
return createdCount, deletedCount, nil
}
// IndexContacts queries and indexes all contacts with a lastModified greater than or equal to the passed in time
func IndexContacts(db *sql.DB, elasticURL string, index string, lastModified time.Time) (int, int, error) {
batch := strings.Builder{}
createdCount, deletedCount, processedCount := 0, 0, 0
if index == "" {
return createdCount, deletedCount, fmt.Errorf("empty index passed to IndexContacts")
}
var modifiedOn time.Time
var contactJSON string
var id, orgID int64
var isActive bool
start := time.Now()
for {
rows, err := db.Query(contactQuery, lastModified)
queryCreated := 0
queryCount := 0
queryModified := lastModified
// no more rows? return
if err == sql.ErrNoRows {
return 0, 0, nil
}
if err != nil {
return 0, 0, err
}
defer rows.Close()
for rows.Next() {
err = rows.Scan(&orgID, &id, &modifiedOn, &isActive, &contactJSON)
if err != nil {
return 0, 0, err
}
queryCount++
processedCount++
lastModified = modifiedOn
if isActive {
log.WithField("id", id).WithField("modifiedOn", modifiedOn).WithField("contact", contactJSON).Debug("modified contact")
batch.WriteString(fmt.Sprintf(indexCommand, id, modifiedOn.UnixNano(), orgID))
batch.WriteString("\n")
batch.WriteString(contactJSON)
batch.WriteString("\n")
} else {
log.WithField("id", id).WithField("modifiedOn", modifiedOn).Debug("deleted contact")
batch.WriteString(fmt.Sprintf(deleteCommand, id, modifiedOn.UnixNano(), orgID))
batch.WriteString("\n")
}
// write to elastic search in batches
if queryCount%batchSize == 0 {
created, deleted, err := IndexBatch(elasticURL, index, batch.String())
if err != nil {
return 0, 0, err
}
batch.Reset()
queryCreated += created
createdCount += created
deletedCount += deleted
}
}
if batch.Len() > 0 {
created, deleted, err := IndexBatch(elasticURL, index, batch.String())
if err != nil {
return 0, 0, err
}
queryCreated += created
createdCount += created
deletedCount += deleted
batch.Reset()
}
// last modified stayed the same and we didn't add anything, seen it all, break out
if lastModified.Equal(queryModified) && queryCreated == 0 {
break
}
elapsed := time.Since(start)
rate := float32(processedCount) / (float32(elapsed) / float32(time.Second))
log.WithFields(map[string]interface{}{
"rate": int(rate),
"added": createdCount,
"deleted": deletedCount,
"elapsed": elapsed,
"index": index}).Info("updated contact index")
rows.Close()
}
return createdCount, deletedCount, nil
}
// MapIndexAlias maps the passed in alias to the new physical index, optionally removing
// existing aliases if they exit.
func MapIndexAlias(elasticURL string, alias string, newIndex string) error {
commands := make([]interface{}, 0)
// find existing physical indexes
existing := FindPhysicalIndexes(elasticURL, alias)
for _, idx := range existing {
remove := removeAliasCommand{}
remove.Remove.Alias = alias
remove.Remove.Index = idx
commands = append(commands, remove)
log.WithField("index", idx).WithField("alias", alias).Info("removing old alias")
}
// add our new index
add := addAliasCommand{}
add.Add.Alias = alias
add.Add.Index = newIndex
commands = append(commands, add)
lo
6D47
g.WithField("index", newIndex).WithField("alias", alias).Info("adding new alias")
aliasURL := fmt.Sprintf("%s/_aliases", elasticURL)
aliasJSON, err := json.Marshal(aliasCommand{Actions: commands})
if err != nil {
return err
}
_, err = MakeJSONRequest(http.MethodPost, aliasURL, string(aliasJSON), nil)
return err
}
const contactQuery = `
SELECT org_id, id, modified_on, is_active, row_to_json(t) FROM (
SELECT
id, org_id, uuid, name, language, status, ticket_count AS tickets, is_active, created_on, modified_on, last_seen_on,
EXTRACT(EPOCH FROM modified_on) * 1000000 as modified_on_mu,
(
SELECT array_to_json(array_agg(row_to_json(u)))
FROM (
SELECT scheme, path
FROM contacts_contacturn
WHERE contact_id = contacts_contact.id
) u
) as urns,
(
SELECT jsonb_agg(f.value)
FROM (
select case
when value ? 'ward'
then jsonb_build_object(
'ward_keyword', trim(substring(value ->> 'ward' from '(?!.* > )([^>]+)'))
)
else '{}' :: jsonb
end || district_value.value as value
FROM (
select case
when value ? 'district'
then jsonb_build_object(
'district_keyword', trim(substring(value ->> 'district' from '(?!.* > )([^>]+)'))
)
else '{}' :: jsonb
end || state_value.value as value
FROM (
select case
when value ? 'state'
then jsonb_build_object(
'state_keyword', trim(substring(value ->> 'state' from '(?!.* > )([^>]+)'))
)
else '{}' :: jsonb
end ||
jsonb_build_object('field', key) || value as value
from jsonb_each(contacts_contact.fields)
) state_value
) as district_value
) as f
) as fields,
(
SELECT array_to_json(array_agg(g.uuid))
FROM (
SELECT contacts_contactgroup.uuid
FROM contacts_contactgroup_contacts, contacts_contactgroup
WHERE contact_id = contacts_contact.id AND
contacts_contactgroup_contacts.contactgroup_id = contacts_contactgroup.id
) g
) as groups
FROM contacts_contact
WHERE modified_on >= $1
ORDER BY modified_on ASC
LIMIT 500000
) t;
`
// settings and mappings for our index
//go:embed contacts/index_settings.json
var indexSettings string
// gets our last modified contact
const lastModifiedQuery = `{ "sort": [{ "modified_on_mu": "desc" }]}`
// indexes a contact
const indexCommand = `{ "index": { "_id": %d, "_type": "_doc", "version": %d, "version_type": "external", "routing": %d} }`
// deletes a contact
const deleteCommand = `{ "delete" : { "_id": %d, "_type": "_doc", "version": %d, "version_type": "external", "routing": %d} }`
// adds an alias for an index
type addAliasCommand struct {
Add struct {
Index string `json:"index"`
Alias string `json:"alias"`
} `json:"add"`
}
// removes an alias for an index
type removeAliasCommand struct {
Remove struct {
Index string `json:"index"`
Alias string `json:"alias"`
} `json:"remove"`
}
// our top level command for remapping aliases
type aliasCommand struct {
Actions []interface{} `json:"actions"`
}
// our response for finding the most recent contact
type queryResponse struct {
Hits struct {
Total struct {
Value int `json:"value"`
} `json:"total"`
Hits []struct {
Source struct {
ID int64 `json:"id"`
ModifiedOn time.Time `json:"modified_on"`
} `json:"_source"`
} `json:"hits"`
} `json:"hits"`
}
// our response for indexing contacts
type indexResponse struct {
Items []struct {
Index struct {
ID string `json:"_id"`
Status int `json:"status"`
Result string `json:"result"`
} `json:"index"`
Delete struct {
ID string `json:"_id"`
Status int `json:"status"`
} `json:"delete"`
} `json:"items"`
}
// our response for our index health
type healthResponse struct {
Indices map[string]struct {
Status string `json:"status"`
} `json:"indices"`
}
// our response for figuring out the physical index for an alias
type infoResponse map[string]interface{}