Class: Fluent::Plugin::ElasticsearchOutput

Inherits:
Output
  • Object
show all
Includes:
ElasticsearchIndexTemplate, ElasticsearchConstants
Defined in:
lib/fluent/plugin/out_elasticsearch.rb

Direct Known Subclasses

ElasticsearchOutputDynamic

Defined Under Namespace

Classes: MissingIdFieldError, RecoverableRequestFailure, RequestInfo, RetryStreamError, UnrecoverableRequestFailure

Constant Summary collapse

DEFAULT_BUFFER_TYPE = 
"memory"
DEFAULT_ELASTICSEARCH_VERSION =

For compatibility.

5
DEFAULT_TYPE_NAME_ES_7x = 
"_doc".freeze
DEFAULT_TYPE_NAME = 
"fluentd".freeze
DEFAULT_RELOAD_AFTER = 
-1
TARGET_BULK_BYTES = 
20 * 1024 * 1024

Constants included from ElasticsearchConstants

Fluent::Plugin::ElasticsearchConstants::BODY_DELIMITER, Fluent::Plugin::ElasticsearchConstants::CREATE_OP, Fluent::Plugin::ElasticsearchConstants::ID_FIELD, Fluent::Plugin::ElasticsearchConstants::INDEX_OP, Fluent::Plugin::ElasticsearchConstants::TIMESTAMP_FIELD, Fluent::Plugin::ElasticsearchConstants::UPDATE_OP, Fluent::Plugin::ElasticsearchConstants::UPSERT_OP

Instance Method Summary collapse

Methods included from ElasticsearchIndexTemplate

#get_custom_template, #get_template, #indexcreation, #retry_operate, #template_custom_install, #template_exists?, #template_install, #template_put, #templates_hash_install

Constructor Details

#initialize ⇒ ElasticsearchOutput

Returns a new instance of ElasticsearchOutput.



148
149
150
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 148

def initialize
  super
end

Instance Method Details

#append_record_to_messages(op, meta, header, record, msgs) ⇒ Object

append_record_to_messages adds a record to the bulk message payload to be submitted to Elasticsearch. Records that do not include ‘_id’ field are skipped when ‘write_operation’ is configured for ‘create’ or ‘update’

returns ‘true’ if record was appended to the bulk message

and 'false' otherwise



476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 476

def append_record_to_messages(op, meta, header, record, msgs)
  case op
  when UPDATE_OP, UPSERT_OP
    if meta.has_key?(ID_FIELD)
      header[UPDATE_OP] = meta
      msgs << @dump_proc.call(header) << BODY_DELIMITER
      msgs << @dump_proc.call(update_body(record, op)) << BODY_DELIMITER
      return true
    end
  when CREATE_OP
    if meta.has_key?(ID_FIELD)
      header[CREATE_OP] = meta
      msgs << @dump_proc.call(header) << BODY_DELIMITER
      msgs << @dump_proc.call(record) << BODY_DELIMITER
      return true
    end
  when INDEX_OP
    header[INDEX_OP] = meta
    msgs << @dump_proc.call(header) << BODY_DELIMITER
    msgs << @dump_proc.call(record) << BODY_DELIMITER
    return true
  end
  return false
end

#backend_options ⇒ Object 



307
308
309
310
311
312
313
314
315
316
317
318
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 307

def backend_options
  case @http_backend
  when :excon
    { client_key: @client_key, client_cert: @client_cert, client_key_pass: @client_key_pass }
  when :typhoeus
    require 'typhoeus'
    { sslkey: @client_key, sslcert: @client_cert, keypasswd: @client_key_pass }
  end
rescue LoadError => ex
  log.error_backtrace(ex.backtrace)
  raise Fluent::ConfigError, "You must install #{@http_backend} gem. Exception: #{ex}"
end

#client(host = nil) ⇒ Object 



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
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 380

def client(host = nil)
  # check here to see if we already have a client connection for the given host
  connection_options = get_connection_options(host)

  @_es = nil unless is_existing_connection(connection_options[:hosts])

  @_es ||= begin
    @current_config = connection_options[:hosts].clone
    adapter_conf = lambda {|f| f.adapter @http_backend, @backend_options }
    local_reload_connections = @reload_connections
    if local_reload_connections && @reload_after > DEFAULT_RELOAD_AFTER
      local_reload_connections = @reload_after
    end
    headers = { 'Content-Type' => @content_type.to_s }.merge(@custom_headers)
    transport = Elasticsearch::Transport::Transport::HTTP::Faraday.new(connection_options.merge(
                                                                        options: {
                                                                          reload_connections: local_reload_connections,
                                                                          reload_on_failure: @reload_on_failure,
                                                                          resurrect_after: @resurrect_after,
                                                                          logger: @transport_logger,
                                                                          transport_options: {
                                                                            headers: headers,
                                                                            request: { timeout: @request_timeout },
                                                                            ssl: { verify: @ssl_verify, ca_file: @ca_file, version: @ssl_version }
                                                                          },
                                                                          http: {
                                                                            user: @user,
                                                                            password: @password
                                                                          },
                                                                          sniffer_class: @sniffer_class,
                                                                          serializer_class: @serializer_class,
                                                                        }), &adapter_conf)
    Elasticsearch::Client.new transport: transport
  end
end

#client_library_version ⇒ Object 



325
326
327
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 325

def client_library_version
  Elasticsearch::VERSION
end

#configure(conf) ⇒ Object

Raises:

  • (Fluent::ConfigError) 


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
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 152

def configure(conf)
  compat_parameters_convert(conf, :buffer)

  super
  raise Fluent::ConfigError, "'tag' in chunk_keys is required." if not @chunk_key_tag

  @time_parser = create_time_parser
  @backend_options = backend_options

  if @remove_keys
    @remove_keys = @remove_keys.split(/\s*,\s*/)
  end

  if @target_index_key && @target_index_key.is_a?(String)
    @target_index_key = @target_index_key.split '.'
  end

  if @target_type_key && @target_type_key.is_a?(String)
    @target_type_key = @target_type_key.split '.'
  end

  if @remove_keys_on_update && @remove_keys_on_update.is_a?(String)
    @remove_keys_on_update = @remove_keys_on_update.split ','
  end

  raise Fluent::ConfigError, "'max_retry_putting_template' must be positive number." if @max_retry_putting_template < 0

  # Raise error when using host placeholders and template features at same time.
  valid_host_placeholder = placeholder?(:host_placeholder, @host)
  if valid_host_placeholder && (@template_name && @template_file || @templates)
    raise Fluent::ConfigError, "host placeholder and template installation are exclusive features."
  end

  if !Fluent::Engine.dry_run_mode
    if @template_name && @template_file
      retry_operate(@max_retry_putting_template) do
        if @customize_template
          if @rollover_index
            raise Fluent::ConfigError, "'deflector_alias' must be provided if 'rollover_index' is set true ." if not @deflector_alias
          end
          template_custom_install(@template_name, @template_file, @template_overwrite, @customize_template, @index_prefix, @rollover_index, @deflector_alias, @application_name, @index_date_pattern)
        else
          template_install(@template_name, @template_file, @template_overwrite)
        end
      end
    elsif @templates
      retry_operate(@max_retry_putting_template) do
        templates_hash_install(@templates, @template_overwrite)
      end
    end
  end

  # Consider missing the prefix of "$." in nested key specifiers.
  @id_key = convert_compat_id_key(@id_key) if @id_key
  @parent_key = convert_compat_id_key(@parent_key) if @parent_key
  @routing_key = convert_compat_id_key(@routing_key) if @routing_key

  @meta_config_map = create_meta_config_map

  @serializer_class = nil
  begin
    require 'oj'
    @dump_proc = Oj.method(:dump)
    if @prefer_oj_serializer
      @serializer_class = Fluent::Plugin::Serializer::Oj
      Elasticsearch::API.settings[:serializer] = Fluent::Plugin::Serializer::Oj
    end
  rescue LoadError
    @dump_proc = Yajl.method(:dump)
  end

  if @user && m = @user.match(/%{(?<user>.*)}/)
    @user = URI.encode_www_form_component(m["user"])
  end
  if @password && m = @password.match(/%{(?<password>.*)}/)
    @password = URI.encode_www_form_component(m["password"])
  end

  @transport_logger = nil
  if @with_transporter_log
    @transport_logger = log
    log_level = conf['@log_level'] || conf['log_level']
    log.warn "Consider to specify log_level with @log_level." unless log_level
  end
  # Specify @sniffer_class before calling #client.
  # #detect_es_major_version uses #client.
  @sniffer_class = nil
  begin
    @sniffer_class = Object.const_get(@sniffer_class_name) if @sniffer_class_name
  rescue Exception => ex
    raise Fluent::ConfigError, "Could not load sniffer class #{@sniffer_class_name}: #{ex}"
  end

  @last_seen_major_version =
    if @verify_es_version_at_startup && !Fluent::Engine.dry_run_mode
      retry_operate(@max_retry_get_es_version) do
        detect_es_major_version
      end
    else
      @default_elasticsearch_version
    end
  if @last_seen_major_version == 6 && @type_name != DEFAULT_TYPE_NAME_ES_7x
    log.info "Detected ES 6.x: ES 7.x will only accept `_doc` in type_name."
  end
  if @last_seen_major_version >= 7 && @type_name != DEFAULT_TYPE_NAME_ES_7x
    log.warn "Detected ES 7.x or above: `_doc` will be used as the document `_type`."
    @type_name = '_doc'.freeze
  end

  if @validate_client_version && !Fluent::Engine.dry_run_mode
    if @last_seen_major_version != client_library_version.to_i
      raise Fluent::ConfigError, <<-EOC
        Detected ES #{@last_seen_major_version} but you use ES client #{client_library_version}.
        Please consider to use #{@last_seen_major_version}.x series ES client.
      EOC
    end
  end

  if @last_seen_major_version >= 6
    case @ssl_version
    when :SSLv23, :TLSv1, :TLSv1_1
      if @scheme == :https
        log.warn "Detected ES 6.x or above and enabled insecure security:
                  You might have to specify `ssl_version TLSv1_2` in configuration."
      end
    end
  end

  if @buffer_config.flush_thread_count < 2
    log.warn "To prevent events traffic jam, you should specify 2 or more 'flush_thread_count'."
  end

  @routing_key_name = configure_routing_key_name
  @current_config = nil

  @ignore_exception_classes = @ignore_exceptions.map do |exception|
    unless Object.const_defined?(exception)
      log.warn "Cannot find class #{exception}. Will ignore it."

      nil
    else
      Object.const_get(exception)
    end
  end.compact
end

#configure_routing_key_name ⇒ Object 



329
330
331
332
333
334
335
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 329

def configure_routing_key_name
  if @last_seen_major_version >= 7
    'routing'
  else
    '_routing'
  end
end

#connection_options_description(con_host = nil) ⇒ Object 



461
462
463
464
465
466
467
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 461

def connection_options_description(con_host=nil)
  get_connection_options(con_host)[:hosts].map do |host_info|
    attributes = host_info.dup
    attributes[:password] = 'obfuscated' if attributes.has_key?(:password)
    attributes.inspect
  end.join(', ')
end

#convert_compat_id_key(key) ⇒ Object 



337
338
339
340
341
342
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 337

def convert_compat_id_key(key)
  if key.include?('.') && !key.start_with?('$[')
    key = "$.#{key}" unless key.start_with?('$.')
  end
  key
end

#create_meta_config_map ⇒ Object 



344
345
346
347
348
349
350
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 344

def create_meta_config_map
  result = []
  result << [record_accessor_create(@id_key), '_id'] if @id_key
  result << [record_accessor_create(@parent_key), '_parent'] if @parent_key
  result << [record_accessor_create(@routing_key), @routing_key_name] if @routing_key
  result
end

#create_time_parser ⇒ Object

once fluent v0.14 is released we might be able to use Fluent::Parser::TimeParser, but it doesn’t quite do what we want - if gives

sec,nsec

where as we want something we can call ‘strftime` on…



355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 355

def create_time_parser
  if @time_key_format
    begin
      # Strptime doesn't support all formats, but for those it does it's
      # blazingly fast.
      strptime = Strptime.new(@time_key_format)
      Proc.new { |value| strptime.exec(value).to_datetime }
    rescue
      # Can happen if Strptime doesn't recognize the format; or
      # if strptime couldn't be required (because it's not installed -- it's
      # ruby 2 only)
      Proc.new { |value| DateTime.strptime(value, @time_key_format) }
    end
  else
    Proc.new { |value| DateTime.parse(value) }
  end
end

#detect_es_major_version ⇒ Object 



320
321
322
323
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 320

def detect_es_major_version
  @_es_info ||= client.info
  @_es_info["version"]["number"].to_i
end

#expand_placeholders(chunk) ⇒ Object 



541
542
543
544
545
546
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 541

def expand_placeholders(chunk)
  logstash_prefix = extract_placeholders(@logstash_prefix, chunk)
  index_name = extract_placeholders(@index_name, chunk)
  type_name = extract_placeholders(@type_name, chunk)
  return logstash_prefix, index_name, type_name
end

#flatten_record(record, prefix = []) ⇒ Object 



526
527
528
529
530
531
532
533
534
535
536
537
538
539
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 526

def flatten_record(record, prefix=[])
  ret = {}
  if record.is_a? Hash
    record.each { |key, value|
      ret.merge! flatten_record(value, prefix + [key.to_s])
    }
  elsif record.is_a? Array
    # Don't mess with arrays, leave them unprocessed
    ret.merge!({prefix.join(@flatten_hashes_separator) => record})
  else
    return {prefix.join(@flatten_hashes_separator) => record}
  end
  ret
end

#get_connection_options(con_host = nil) ⇒ Object 



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
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 428

def get_connection_options(con_host=nil)
  raise "`password` must be present if `user` is present" if @user && !@password

  hosts = if con_host || @hosts
    (con_host || @hosts).split(',').map do |host_str|
      # Support legacy hosts format host:port,host:port,host:port...
      if host_str.match(%r{^[^:]+(\:\d+)?$})
        {
          host:   host_str.split(':')[0],
          port:   (host_str.split(':')[1] || @port).to_i,
          scheme: @scheme.to_s
        }
      else
        # New hosts format expects URLs such as http://logs.foo.com,https://john:[email protected]/elastic
        uri = URI(get_escaped_userinfo(host_str))
        %w(user password path).inject(host: uri.host, port: uri.port, scheme: uri.scheme) do |hash, key|
          hash[key.to_sym] = uri.public_send(key) unless uri.public_send(key).nil? || uri.public_send(key) == ''
          hash
        end
      end
    end.compact
  else
    [{host: @host, port: @port, scheme: @scheme.to_s}]
  end.each do |host|
    host.merge!(user: @user, password: @password) if !host[:user] && @user
    host.merge!(path: @path) if !host[:path] && @path
  end

  {
    hosts: hosts
  }
end

#get_escaped_userinfo(host_str) ⇒ Object 



416
417
418
419
420
421
422
423
424
425
426
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 416

def get_escaped_userinfo(host_str)
  if m = host_str.match(/(?<scheme>.*)%{(?<user>.*)}:%{(?<password>.*)}(?<path>@.*)/)
    m["scheme"] +
      URI.encode_www_form_component(m["user"]) +
      ':' +
      URI.encode_www_form_component(m["password"]) +
      m["path"]
  else
    host_str
  end
end

#get_parent_of(record, path) ⇒ Object

returns [parent, child_key] of child described by path array in record’s tree returns [nil, child_key] if path doesnt exist in record



686
687
688
689
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 686

def get_parent_of(record, path)
  parent_object = path[0..-2].reduce(record) { |a, e| a.is_a?(Hash) ? a[e] : nil }
  [parent_object, path[-1]]
end

#is_existing_connection(host) ⇒ Object 



722
723
724
725
726
727
728
729
730
731
732
733
734
735
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 722

def is_existing_connection(host)
  # check if the host provided match the current connection
  return false if @_es.nil?
  return false if @current_config.nil?
  return false if host.length != @current_config.length

  for i in 0...host.length
    if !host[i][:host].eql? @current_config[i][:host] || host[i][:port] != @current_config[i][:port]
      return false
    end
  end

  return true
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


548
549
550
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 548

def multi_workers_ready?
  true
end

#parse_time(value, event_time, tag) ⇒ Object 



373
374
375
376
377
378
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 373

def parse_time(value, event_time, tag)
  @time_parser.call(value)
rescue => e
  router.emit_error_event(@time_parse_error_tag, Fluent::Engine.now, {'tag' => tag, 'time' => event_time, 'format' => @time_key_format, 'value' => value}, e)
  return Time.at(event_time).to_datetime
end

#placeholder?(name, param) ⇒ Boolean

Returns:

  • (Boolean) 


298
299
300
301
302
303
304
305
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 298

def placeholder?(name, param)
  begin
    placeholder_validate!(name, param)
    true
  rescue Fluent::ConfigError
    false
  end
end

#process_message(tag, meta, header, time, record, extracted_values) ⇒ Object 



605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 605

def process_message(tag, meta, header, time, record, extracted_values)
  logstash_prefix, index_name, type_name = extracted_values

  if @flatten_hashes
    record = flatten_record(record)
  end

  dt = nil
  if @logstash_format || @include_timestamp
    if record.has_key?(TIMESTAMP_FIELD)
      rts = record[TIMESTAMP_FIELD]
      dt = parse_time(rts, time, tag)
    elsif record.has_key?(@time_key)
      rts = record[@time_key]
      dt = parse_time(rts, time, tag)
      record[TIMESTAMP_FIELD] = dt.iso8601(@time_precision) unless @time_key_exclude_timestamp
    else
      dt = Time.at(time).to_datetime
      record[TIMESTAMP_FIELD] = dt.iso8601(@time_precision)
    end
  end

  target_index_parent, target_index_child_key = @target_index_key ? get_parent_of(record, @target_index_key) : nil
  if target_index_parent && target_index_parent[target_index_child_key]
    target_index = target_index_parent.delete(target_index_child_key)
  elsif @logstash_format
    dt = dt.new_offset(0) if @utc_index
    target_index = "#{logstash_prefix}#{@logstash_prefix_separator}#{dt.strftime(@logstash_dateformat)}"
  else
    target_index = index_name
  end

  # Change target_index to lower-case since Elasticsearch doesn't
  # allow upper-case characters in index names.
  target_index = target_index.downcase
  if @include_tag_key
    record[@tag_key] = tag
  end

  target_type_parent, target_type_child_key = @target_type_key ? get_parent_of(record, @target_type_key) : nil
  if target_type_parent && target_type_parent[target_type_child_key]
    target_type = target_type_parent.delete(target_type_child_key)
    if @last_seen_major_version == 6
      log.warn "Detected ES 6.x: `@type_name` will be used as the document `_type`."
      target_type = type_name
    elsif @last_seen_major_version >= 7
      log.warn "Detected ES 7.x or above: `_doc` will be used as the document `_type`."
      target_type = '_doc'.freeze
    end
  else
    if @last_seen_major_version >= 7 && target_type != DEFAULT_TYPE_NAME_ES_7x
      log.warn "Detected ES 7.x or above: `_doc` will be used as the document `_type`."
      target_type = '_doc'.freeze
    else
      target_type = type_name
    end
  end

  meta.clear
  meta["_index".freeze] = target_index
  meta["_type".freeze] = target_type

  if @pipeline
    meta["pipeline".freeze] = @pipeline
  end

  @meta_config_map.each do |record_accessor, meta_key|
    if raw_value = record_accessor.call(record)
      meta[meta_key] = raw_value
    end
  end

  if @remove_keys
    @remove_keys.each { |key| record.delete(key) }
  end

  return [meta, header, record]
end

#remove_keys(record) ⇒ Object 



517
518
519
520
521
522
523
524
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 517

def remove_keys(record)
  keys = record[@remove_keys_on_update_key] || @remove_keys_on_update || []
  record.delete(@remove_keys_on_update_key)
  return record unless keys.any?
  record = record.dup
  keys.each { |key| record.delete(key) }
  record
end

#send_bulk(data, tag, chunk, bulk_message_count, extracted_values, info) ⇒ Object

send_bulk given a specific bulk request, the original tag, chunk, and bulk_message_count



693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 693

def send_bulk(data, tag, chunk, bulk_message_count, extracted_values, info)
  begin

    log.on_trace { log.trace "bulk request: #{data}" }
    response = client(info.host).bulk body: data, index: info.index
    log.on_trace { log.trace "bulk response: #{response}" }

    if response['errors']
      error = Fluent::Plugin::ElasticsearchErrorHandler.new(self)
      error.handle_error(response, tag, chunk, bulk_message_count, extracted_values)
    end
  rescue RetryStreamError => e
    emit_tag = @retry_tag ? @retry_tag : tag
    router.emit_stream(emit_tag, e.retry_stream)
  rescue => e
    ignore = @ignore_exception_classes.any? { |clazz| e.class <= clazz }

    log.warn "Exception ignored in tag #{tag}: #{e.class.name} #{e.message}" if ignore

    @_es = nil if @reconnect_on_error
    @_es_info = nil if @reconnect_on_error

    raise UnrecoverableRequestFailure if ignore && @exception_backup

    # FIXME: identify unrecoverable errors and raise UnrecoverableRequestFailure instead
    raise RecoverableRequestFailure, "could not push logs to Elasticsearch cluster (#{connection_options_description(info.host)}): #{e.message}" unless ignore
  end
end

#update_body(record, op) ⇒ Object 



501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 501

def update_body(record, op)
  update = remove_keys(record)
  if @suppress_doc_wrap
    return update
  end
  body = {"doc".freeze => update}
  if op == UPSERT_OP
    if update == record
      body["doc_as_upsert".freeze] = true
    else
      body[UPSERT_OP] = record
    end
  end
  body
end

#write(chunk) ⇒ Object 



552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
 
# File 'lib/fluent/plugin/out_elasticsearch.rb', line 552

def write(chunk)
  bulk_message_count = Hash.new { |h,k| h[k] = 0 }
  bulk_message = Hash.new { |h,k| h[k] = '' }
  header = {}
  meta = {}

  tag = chunk.metadata.tag
  extracted_values = expand_placeholders(chunk)
  host = if @hosts
           extract_placeholders(@hosts, chunk)
         else
           extract_placeholders(@host, chunk)
         end

  chunk.msgpack_each do |time, record|
    next unless record.is_a? Hash
    begin
      meta, header, record = process_message(tag, meta, header, time, record, extracted_values)
      info = if @include_index_in_url
               RequestInfo.new(host, meta.delete("_index".freeze))
             else
               RequestInfo.new(host, nil)
             end

      if append_record_to_messages(@write_operation, meta, header, record, bulk_message[info])
        bulk_message_count[info] += 1;
        if bulk_message[info].size > TARGET_BULK_BYTES
          bulk_message.each do |info, msgs|
            send_bulk(msgs, tag, chunk, bulk_message_count[info], extracted_values, info) unless msgs.empty?
            msgs.clear
            # Clear bulk_message_count for this info.
            bulk_message_count[info] = 0;
            next
          end
        end
      else
        if @emit_error_for_missing_id
          raise MissingIdFieldError, "Missing '_id' field. Write operation is #{@write_operation}"
        else
          log.on_debug { log.debug("Dropping record because its missing an '_id' field and write_operation is #{@write_operation}: #{record}") }
        end
      end
    rescue => e
      router.emit_error_event(tag, time, record, e)
    end
  end

  bulk_message.each do |info, msgs|
    send_bulk(msgs, tag, chunk, bulk_message_count[info], extracted_values, info) unless msgs.empty?
    msgs.clear
  end
end