Class: Fluent::Site24x7Output

Inherits:
Plugin::Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_site24x7.rb

Constant Summary collapse

S247_MAX_RECORD_COUNT = 
500
S247_MAX_RECORD_SIZE = 
1000000
S247_MAX_BATCH_SIZE = 
5000000
S247_LOG_UPLOAD_CHECK_INTERVAL =

10 minutes

600
S247_TRUNCATION_SUFFIX = 
"##TRUNCATED###"

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Site24x7Output

Returns a new instance of Site24x7Output.



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# File 'lib/fluent/plugin/out_site24x7.rb', line 36

def initialize
  super
end

Instance Method Details

#add_message_metadata ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 254

def add_message_metadata()
  @log_fields.update({'_zl_timestamp' => get_timestamp(@log_fields[@logtype_config['dateField']]), 's247agentuid' => @log_source})
end

#applyHashing ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 698

def applyHashing()
  if @hashing_config
    begin
      for key,value in @hashing_config do
        hash_regex = @hashing_config[key]["regex"]
        if @formatted_line.has_key?key 
          field_value = @formatted_line[key]
          if (hash_regex.eql?(@general_regex))
            hash_string =  Digest::SHA256.hexdigest(field_value)
            field_value = hash_string
          else 
            adjust_length = 0 
            matcher = field_value.to_enum(:scan, hash_regex).map { Regexp.last_match }
            if matcher
              (0..(matcher.length)-1).map do |index| 
                start = matcher[index].offset(1)[0] 
                _end = matcher[index].offset(1)[1] 
                if ((start >= 0) && (_end > 0))
                  start = start - adjust_length
                  _end = _end - adjust_length
                  hash_string =  Digest::SHA256.hexdigest(field_value[start..(_end-1)])
                  adjust_length += (_end - start) - hash_string.bytesize
                  field_value = field_value[0..(start-1)] + hash_string + field_value[_end..field_value.bytesize]
                end
              end
            end
          end
          @formatted_line[key] = field_value
        end
      end
    rescue Exception => e
      log.error "Exception occurred in hashing : #{e.backtrace}"
    end
  end
end

#applyMasking ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 664

def applyMasking()
  if @masking_config
    begin
      for key,value in @masking_config do
        adjust_length = 0
        mask_regex = @masking_config[key]["regex"]
        if @formatted_line.has_key?key
          field_value = @formatted_line[key]
          if !(mask_regex.eql?(@general_regex))
            matcher = field_value.to_enum(:scan, mask_regex).map { Regexp.last_match }
            if matcher
              (0..(matcher.length)-1).map do |index| 
                start = matcher[index].offset(1)[0]  
                _end = matcher[index].offset(1)[1]
                if ((start >= 0) && (_end > 0))
                  start = start - adjust_length
                  _end = _end - adjust_length
                  adjust_length += (_end - start) - @masking_config[key]['string'].bytesize
                  field_value = field_value[0..(start-1)] + @masking_config[key]['string'] + field_value[_end..field_value.bytesize]
                end
              end
            end
            @formatted_line[key] = field_value
          else
            @formatted_line[key] = @masking_config[key]['string']
          end
        end
      end
    rescue Exception => e
      log.error "Exception occurred in masking : #{e.backtrace}"
    end        
  end
end

#base64_url_decode(str) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 71

def base64_url_decode(str)
   str += '=' * (4 - str.length.modulo(4))
   Base64.decode64(str.tr('-_','+/'))
end

#batch_http_events(encoded_events) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 500

def batch_http_events(encoded_events)
  batches = []
  current_batch = []
  current_batch_size = 0
  encoded_events.each_with_index do |encoded_event, i|
    current_event_size = String(encoded_event).bytesize
    if current_event_size > S247_MAX_RECORD_SIZE
      encoded_event = encoded_event[0..(S247_MAX_RECORD_SIZE-DD_TRUNCATION_SUFFIX.length)]+DD_TRUNCATION_SUFFIX
      current_event_size = encoded_event.bytesize
    end

    if (i > 0 and i % S247_MAX_RECORD_COUNT == 0) or (current_batch_size + current_event_size > S247_MAX_BATCH_SIZE)
      batches << current_batch
      current_batch = []
      current_batch_size = 0
    end

    current_batch_size += current_event_size
    current_batch << encoded_event
  end
  batches << current_batch
  batches
end

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 40

def configure(conf)
  compat_parameters_convert(conf, :buffer)
  super
  if conf['http_proxy']
      ENV['http_proxy'] = @http_proxy
  end
end

#data_collector ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 225

def data_collector()
  if @formatted_line.has_key?('_zl_timestamp')
    applyMasking()
    applyHashing()
    getDerivedFields()
    if !is_filters_matched()
      @formatted_line = {}
      return
    end
    remove_ignored_fields()
    log_size_calculation()
  else
    @formatted_line = {}
    return
  end
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 462

def format(tag, time, record)
  if (@log_upload_allowed || (time.to_i - @log_upload_stopped_time > S247_LOG_UPLOAD_CHECK_INTERVAL))
    if (record.size == 1)
      if record.has_key?'message'
        [record['message']].to_msgpack
      end
    else
      [record.to_json].to_msgpack
    end
  end
end

#format_http_event_batch(events) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 524

def format_http_event_batch(events)
  parsed_lines = []
  @log_size = 0
  @old_log_size=0
  if @logtype_config.has_key?'jsonPath'
    parsed_lines = json_log_parser(events)
  elsif @logtype_config.has_key?'ml_regex'
    parsed_lines = ml_log_parser(events)
  else
    parsed_lines = parse_lines(events)
  end
  if (parsed_lines.length > 0)
    return Yajl.dump(parsed_lines), @log_size
  end
  return [],0
end

#formatted_to_msgpack_binary? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin/out_site24x7.rb', line 52

def formatted_to_msgpack_binary?
  true
end

#get_json_value(obj, key, datatype = nil) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 319

def get_json_value(obj, key, datatype=nil)
  if obj != nil && (obj.has_key?key)
    if datatype and datatype == 'json-object'
      arr_json = []
      child_obj = obj[key]
      if child_obj.class == String
        child_obj = Yajl::Parser.parse(child_obj.gsub('\\','\\\\'))
      end             
      child_obj.each do |key, value|
        arr_json.push({'key' => key, 'value' => String(value)})
      end
      return arr_json
    else
      return (if obj.has_key?key then obj[key] else obj[key.downcase] end)
    end
  elsif key.include?'.'
    parent_key = key[0..key.index('.')-1]
    child_key = key[key.index('.')+1..-1]
    child_obj = obj[if obj.has_key?parent_key then parent_key else parent_key.capitalize() end]
    if child_obj.class == String
      child_obj = Yajl::Parser.parse(child_obj.replace('\\','\\\\'))
    end
    return get_json_value(child_obj, child_key,datatype)
  end
end

#get_last_group_inregex(s247_custom_regex) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 242

def get_last_group_inregex(s247_custom_regex)
  return @s247_custom_regex.names[-1]
end

#get_timestamp(datetime_string) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 205

def get_timestamp(datetime_string)
  begin
      # If the date value is in unix format the no need to process the date string
      if @s247_datetime_format_string.include? 'unix'
          return (if @s247_datetime_format_string == 'unix' then datetime_string+'000' else datetime_string end)
      end
      datetime_string += if !@is_year_present then ' '+String(Time.new.year) else '' end
      if !@is_timezone_present && @logtype_config.has_key?('timezone')
          time_zone = String(@s247_tz['hrs'])+':'+String(@s247_tz['mins'])
          datetime_string += if time_zone.start_with?('-') then time_zone else '+'+time_zone end
      end
      #log.info "datetime_string : (#{datetime_string}), s247_datetime_format_string: (#{@s247_datetime_format_string})"
      datetime_data = DateTime.strptime(datetime_string, @s247_datetime_format_string)
      return Integer(datetime_data.strftime('%Q'))
  rescue Exception => e
    log.error "Exception in parsing date: #{e.message}"
    return 0
  end
end

#getDerivedFields ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 734

def getDerivedFields()
  if @derived_config
    begin
      for key,value in @derived_fields do
        for each in @derived_fields[key] do
            if @formatted_line.has_key?key
              match_derived = each.match(@formatted_line[key])
              if match_derived
                @formatted_line.update(match_derived.named_captures) 
              end
              break
            end
        end
      end
    rescue Exception => e
      log.error "Exception occurred in derived fields : #{e.backtrace}"
    end
  end
end

#gzip_compress(payload) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 541

def gzip_compress(payload)
  gz = StringIO.new
  gz.set_encoding("BINARY")
  z = Zlib::GzipWriter.new(gz, 9)
  begin
    z.write(payload)
  ensure
    z.close
  end
  gz.string
end

#init_http_client(logtype_config) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 185

def init_http_client(logtype_config)
  require 'net/http/persistent'
  upload_url = 'https://'+logtype_config['uploadDomain']+'/upload'
  @uri = URI(upload_url)
  log.info "Starting HTTP connection to #{upload_url}"
  @s247_http_client = Net::HTTP::Persistent.new name: "fluent-plugin-site24x7", proxy: :ENV
  @s247_http_client.verify_mode = OpenSSL::SSL::VERIFY_NONE
  @s247_http_client.idle_timeout = @http_idle_timeout
  @s247_http_client.read_timeout = @http_read_timeout
  @s247_http_client.override_headers["Content-Type"] = "application/json"
  @s247_http_client.override_headers["Content-Encoding"] = "gzip"
  @s247_http_client.override_headers["X-DeviceKey"] = logtype_config['apiKey']
  @s247_http_client.override_headers["X-LogType"] = logtype_config['logType']
  @s247_http_client.override_headers["X-StreamMode"] = 1
  @s247_http_client.override_headers["User-Agent"] = 'Fluentd'
  if !@s247_http_client.proxy_uri.nil?
      log.info "Using HTTP proxy #{@s247_http_client.proxy_uri.scheme}://#{@s247_http_client.proxy_uri.host}:#{@s247_http_client.proxy_uri.port} username: #{@s247_http_client.proxy_uri.user ? "configured" : "not configured"}, password: #{@s247_http_client.proxy_uri.password ? "configured" : "not configured"}"
  end    
end

#init_variables ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 76

def init_variables()
  @logtype_config = Yajl::Parser.parse(base64_url_decode(@log_type_config))
  @s247_custom_regex = if @logtype_config.has_key? 'regex' then Regexp.compile(@logtype_config['regex'].gsub('?P<','?<')) else nil end
  @s247_ignored_fields = if @logtype_config.has_key? 'ignored_fields' then @logtype_config['ignored_fields'] else [] end
  @datetime_regex = if @logtype_config.has_key?'dateRegex' then Regexp.compile(@logtype_config['dateRegex'].gsub('?P<','?<')) else nil end

  @ml_regex = if @logtype_config.has_key? 'ml_regex' then Regexp.compile(@logtype_config['ml_regex'].gsub('?P<','?<')) else nil end
  @ml_end_regex = if @logtype_config.has_key? 'ml_end_regex' then Regexp.compile(@logtype_config['ml_end_regex'].gsub('?P<','?<')) else nil end
  @max_ml_count = if @logtype_config.has_key? 'ml_regex' then @s247_custom_regex.inspect.scan('\<NewLine\>').length else nil end
  @max_trace_line = 100
  @ml_trace = ''
  @ml_trace_buffer = ''
  @ml_found = false
  @ml_end_line_found = false
  @ml_data = nil
  @ml_count = 0
  
  @json_data = ''
  @sub_pattern = {}

  if !(@logtype_config.has_key?('jsonPath'))
    @message_key = get_last_group_inregex(@s247_custom_regex)
  end
  
  if @logtype_config.has_key?('jsonPath')
    @logtype_config['jsonPath'].each_with_index do | key, index |
      if key.has_key?('pattern')
        begin
          if Regexp.new(key['pattern'].gsub('?P<','?<'))
            @sub_pattern[key['name']] = Regexp.compile(key['pattern'].gsub('?P<','?<'))
          end
        rescue Exception => e
          log.error "Invalid subpattern regex #{e.backtrace}"
        end
      end
    end 
  end

  @old_formatted_line = {}
  @formatted_line = {}

  @masking_config = if @logtype_config.has_key? 'maskingConfig' then  @logtype_config['maskingConfig']  else nil end
  @hashing_config = if @logtype_config.has_key? 'hashingConfig' then  @logtype_config['hashingConfig']  else nil end
  @derived_config = if @logtype_config.has_key? 'derivedConfig' then @logtype_config['derivedConfig'] else nil end
  @general_regex = Regexp.compile("(.*)")
  
  if @derived_config
    @derived_fields = {}
    for key,value in @derived_config do
      @derived_fields[key] = []
      for values in @derived_config[key] do
        @derived_fields[key].push(Regexp.compile(values.gsub('\\\\', '\\')))
      end
    end
  end
  
  if @masking_config
    for key,value in @masking_config do
      @masking_config[key]["regex"] = Regexp.compile(@masking_config[key]["regex"])
    end
  end
  
  if @hashing_config
    for key,value in @hashing_config do
      @hashing_config[key]["regex"] = Regexp.compile(@hashing_config[key]["regex"])
    end
  end

  if @logtype_config.has_key?'filterConfig'
    for field,rules in @logtype_config['filterConfig'] do
      temp = []
      for value in @logtype_config['filterConfig'][field]['values'] do
        if @logtype_config['filterConfig'][field]['exact']
          temp.push("\\A"+value+"\\Z")
        else
          temp.push(value)
        end
      end
      @logtype_config['filterConfig'][field]['values'] = Regexp.compile(temp.join('|')) 
    end
  end  
  
  @s247_tz = {'hrs': 0, 'mins': 0} #UTC
  @log_source = Socket.gethostname
  @log_upload_allowed = true
  @log_upload_stopped_time = 0
  @s247_datetime_format_string = @logtype_config['dateFormat']
  @s247_datetime_format_string = @s247_datetime_format_string.sub('%f', '%N')
  if !@s247_datetime_format_string.include? 'unix'
    @is_year_present = if @s247_datetime_format_string.include?('%y') || @s247_datetime_format_string.include?('%Y') then true else false end
    if !@is_year_present
	@s247_datetime_format_string = @s247_datetime_format_string+ ' %Y'
    end   
    @is_timezone_present = if @s247_datetime_format_string.include? '%z' then true else false end
    if !@is_timezone_present && @logtype_config.has_key?('timezone')
@s247_datetime_format_string += '%z'
	tz_value = @logtype_config['timezone']
if tz_value.start_with?('+')
  @s247_tz['hrs'] = Integer('-' + tz_value[1..2])
  @s247_tz['mins'] = Integer('-' + tz_value[3..4])
elsif tz_value.start_with?('-')
  @s247_tz['hrs'] = Integer('+' + tz_value[1..2])
  @s247_tz['mins'] = Integer('+' + tz_value[3..4])
end
    end
  end
  Thread.new { timer_task() }
end

#is_filters_matched ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 297

def is_filters_matched()
  begin
    if @logtype_config.has_key?'filterConfig'
      @logtype_config['filterConfig'].each do |config,value|
        if (@formatted_line.has_key?config)
          if @logtype_config['filterConfig'][config]['values'].match(@formatted_line[config])
            val = true 
          else
            val = false
          end
        end
        if (@logtype_config['filterConfig'][config]['match'] ^ (val))
          return false
        end
      end
    end
  rescue Exception => e
    log.error "Exception occurred in filter: #{e.backtrace}" 
  end
  return true
end

#json_log_applier(line) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 345

def json_log_applier(line)
  json_log_size=0
  @formatted_line = {}
  @log_fields = {}
  event_obj = if line.is_a?(String) then Yajl::Parser.parse(line) else line end
  @logtype_config['jsonPath'].each do |path_obj|
    value = get_json_value(event_obj, path_obj[if path_obj.has_key?'key' then 'key' else 'name' end], path_obj['type'])
    if value
      @log_fields[path_obj['name']] = value 
      json_log_size+= String(value).bytesize - (if value.class == Array then value.size*20 else 0 end)
    end
  end
  for key,regex in @sub_pattern do
    if @log_fields.has_key?(key)
      matcher = regex.match(@log_fields.delete(key))
      if matcher
        @log_fields.update(matcher.named_captures)
        @formatted_line.update(@log_fields)
      end 
    end
  end
  add_message_metadata()
  @formatted_line.update(@log_fields)
  data_collector()
  if @formatted_line.length >0
    return true
  else
    return false
  end 
end

#json_log_parser(lines) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 376

def json_log_parser(lines)
  parsed_lines = []
  lines.each do |line|
    begin
      @logged = false
      if !line.empty?
        if line[0] == '{' && @json_data[-1] == '}'
          if json_log_applier(@json_data)
            parsed_lines.push(@formatted_line)
          end
          @json_data=''
        end
        @json_data += line
      end
    rescue Exception => e
      log.error "Exception in parse_line #{e.backtrace}"
    end
  end
  return parsed_lines
end

#log_size_calculation ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 754

def log_size_calculation()
  data_exclusion = ["_zl", "s247", "inode"]
  @formatted_line.each do |field, value|
    unless data_exclusion.any? { |exclusion| field.start_with?(exclusion) }
      @log_size += value.to_s.bytesize
    end
  end
end

#log_the_holded_line ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 628

def log_the_holded_line()
  @log_size = 0
  if @logged == false
    if (@ml_trace.length>0)
      ml_regex_applier(@ml_trace, @ml_data)
      if @ml_trace_buffer
        if !(@formatted_line.empty?)
          @formatted_line[@message_key] = @formatted_line[@message_key] + @ml_trace_buffer 
        else
          @ml_trace += @ml_trace_buffer.gsub('\n', '<NewLine>')
          ml_regex_applier(@ml_trace, @ml_data)
        end
        @ml_trace_buffer = ''          
      end    
      @ml_trace = ''
    elsif (@json_data.length>0)
      if !(json_log_applier(@json_data))
        @formatted_line={}
      end
      @json_data = ''
    elsif @old_formatted_line
      @formatted_line.update(@old_formatted_line)
      data_collector()
      @old_formatted_line = {}
    end
    @logged = true
    if @format_record
      @custom_parser.format_record()
    end
    if !(@formatted_line.empty?)
      return @formatted_line
    end
  end
  return nil
end

#ml_log_parser(lines) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 409

def ml_log_parser(lines)
  parsed_lines = []
  lines.each do |line|
    if !line.empty?
      begin
        @logged = false
        ml_start_matcher = @ml_regex.match(line)
        if ml_start_matcher || @ml_end_line_found
          @ml_found = ml_start_matcher
          @ml_end_line_found = false
          @formatted_line = {}
          if @ml_trace.length > 0 
            begin
                ml_regex_applier(@ml_trace, @ml_data)
                if @ml_trace_buffer && @formatted_line
                    @formatted_line[@message_key] = @formatted_line[@message_key] + @ml_trace_buffer
                end
                data_collector()
                if @formatted_line.length >0
                  parsed_lines.push(@formatted_line)
                end    
                @ml_trace = ''
                @ml_trace_buffer = ''
                if @ml_found
                  @ml_data = ml_start_matcher.named_captures
                else
                    @ml_data = {}
                end
                @ml_count = 0
            rescue Exception => e
              log.error "Exception occurred in ml_parser : #{e.backtrace}"
              end
          elsif @ml_found
            @ml_data = ml_start_matcher.named_captures
          end
        elsif @ml_found
          if @ml_count < @max_ml_count
            @ml_trace += '<NewLine>' + line
          elsif @ml_end_regex && @ml_end_regex.match(line)
            @ml_end_line_found = True
          elsif (@ml_count - @max_ml_count) < @max_trace_line
            @ml_trace_buffer += "\n" + line
          end
          @ml_count += 1
        end
      rescue Exception => e
        log.error "Exception occurred in ml_parser : #{e.backtrace}"
      end
    end
  end
  return parsed_lines
end

#ml_regex_applier(ml_trace, ml_data) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 397

def ml_regex_applier(ml_trace, ml_data)
  begin
    matcher = @s247_custom_regex.match(@ml_trace)  
    @log_fields = matcher.named_captures
    @log_fields.update(@ml_data)
    add_message_metadata()
    @formatted_line.update(@log_fields)
  rescue Exception => e
    log.error "Exception occurred in ml_parser : #{e.backtrace}"
  end
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin/out_site24x7.rb', line 48

def multi_workers_ready?
  true
end

#parse_lines(lines) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 258

def parse_lines(lines)
  parsed_lines = []
  lines.each do |line|
    if !line.empty?
      begin
        @logged = false
        match = line.match(@s247_custom_regex)
        if match
          @formatted_line.update(@old_formatted_line)
          @log_fields = match&.named_captures
          add_message_metadata()
          @old_formatted_line = @log_fields
          @last_line_matched = true
          @trace_started = false             
        elsif @last_line_matched || @trace_started
          is_date_present = !(line.scan(@datetime_regex).empty?)
          @trace_started = !(is_date_present)
          if !(is_date_present) && @old_formatted_line
            if @old_formatted_line.has_key?(@message_key)
              @old_formatted_line[@message_key] += '\n' + line
              @old_log_size += line.bytesize
              @trace_started = true
              @last_line_matched = false
            end
          end
        end
        data_collector()
        if @formatted_line.length >0
          parsed_lines.push(@formatted_line)
        end     
      rescue Exception => e
        log.error "Exception in parse_line #{e.backtrace}"
        @formatted_line = {}
      end
    end
  end
  return parsed_lines
end

#process_http_events(events, current_chunk_id) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 488

def process_http_events(events, current_chunk_id)
  @before_time = Time.now
  batches = batch_http_events(events)
  batches.each do |batched_event|
    formatted_events, @log_size = format_http_event_batch(batched_event)
    if (formatted_events.length>0)
      formatted_events = gzip_compress(formatted_events)
      send_logs_to_s247(formatted_events, @log_size, current_chunk_id)
    end
  end 
end

#remove_ignored_fields ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 246

def remove_ignored_fields()
  @s247_ignored_fields.each do |field_name|
    if @formatted_line.has_key?field_name
      @formatted_line.delete(field_name)
    end
  end
end

#send_logs_to_s247(gzipped_parsed_lines, log_size, current_chunk_id) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 553

def send_logs_to_s247(gzipped_parsed_lines, log_size, current_chunk_id)
    request = Net::HTTP::Post.new @uri.request_uri
    request.body = gzipped_parsed_lines

    sleep_interval = @retry_interval
   begin
      retries = 0
      first_upload_time =  Time.now
      while true
        need_retry = false
        begin
          @s247_http_client.override_headers["Log-Size"] = @log_size
          @s247_http_client.override_headers["upload-id"] = current_chunk_id
          response = @s247_http_client.request @uri, request
          resp_headers = response.each_header.to_h
          
          if response.code == '200'
            if resp_headers['x-uploadid'] == nil
              log.error "[#{current_chunk_id}]:upload id is empty hence retry flag enabled #{resp_headers}"
              need_retry = true
            else
            @log_upload_allowed = true
              log.debug "[#{current_chunk_id}]:Successfully sent logs with size #{gzipped_parsed_lines.size} / #{@log_size} to site24x7. Upload Id : #{resp_headers['x-uploadid']}"
            end
          elsif response.code == '400'
            if resp_headers.has_key?'log_license_exceeds' and resp_headers['log_license_exceeds'] == 'True'
              log.error "[#{current_chunk_id}]:Log license limit exceeds so not able to send logs"
              @log_upload_allowed = false
            @log_upload_stopped_time =Time.now.to_i
            elsif resp_headers.has_key?'blocked_logtype' and resp_headers['blocked_logtype'] == 'True'
              log.error "[#{current_chunk_id}]:Max upload limit reached for log type"
              @log_upload_allowed = false
            @log_upload_stopped_time =Time.now.to_i
            elsif resp_headers.has_key?'api_upload_enabled' and resp_headers['api_upload_enabled'] == 'False'
              log.error "[#{current_chunk_id}]:API upload not enabled for log type"
              Fluent::Engine.stop
            elsif resp_headers.has_key?'invalid_logtype' and resp_headers['invalid_logtype'] == 'True'
              log.error "[#{current_chunk_id}]:Log type not present in this account so stopping log collection"
              Fluent::Engine.stop
            elsif resp_headers.has_key?'invalid_account' and resp_headers['invalid_account'] == 'True'
              log.error "[#{current_chunk_id}]: Invalid account so stopping log collection"
              Fluent::Engine.stop
            else
              log.error "[#{current_chunk_id}]: Upload failed for reason : #{response.message}"
            end
          else
            log.error "[#{current_chunk_id}]:Response Code #{response.code} from Site24x7, so retrying (#{retries + 1}/#{@max_retry})"
            need_retry = true
          end
        rescue StandardError => e
          log.error "[#{current_chunk_id}]:Error connecting to Site24x7. exception: #{e} (#{retries + 1}/#{@max_retry})"
          need_retry = true
        end

        if need_retry
          retries += 1 
          if (retries >= @max_retry && @max_retry > 0) || (Time.now > first_upload_time + @retry_timeout && @retry_timeout > 0)
            log.error "[#{current_chunk_id}]: Internal max retries(#{max_retry}) or retry_timeout : #{first_upload_time + @retry_timeout} reached"
            break
          end
          log.info "[#{current_chunk_id}]:Going to retry the upload at #{Time.now + sleep_interval}"
          sleep(sleep_interval)
          sleep_interval *= 2
          if sleep_interval > @maxretry_interval
              sleep_interval = @maxretry_interval
          end
        else
          return
        end
      end
    rescue Exception => e
      log.error "Exception occurred in sendig logs : #{e.backtrace}"
    end
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 62

def shutdown
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 56

def start
  super
  init_variables()
  init_http_client(@logtype_config)
end

#terminate ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 66

def terminate
  super
  @s247_http_client.shutdown if @s247_http_client
end

#timer_task ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 763

def timer_task()
  while true
    @after_time = Time.now
    if @before_time
      diff = @after_time-@before_time
      if diff.to_i > 29
        out = log_the_holded_line()
        if out != nil
          out = Yajl.dump([out])
          out = gzip_compress(out)
          send_logs_to_s247(out, @log_size, 'holded_line')
        end
      end
    end
    sleep(30)
  end
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_site24x7.rb', line 474

def write(chunk)
  current_chunk_id = "#{chunk.dump_unique_id_hex(chunk.unique_id)}"
  begin
    events = Array.new
    chunk.msgpack_each do |record|
      next if record.empty?
      events.push record[0]
    end
    process_http_events(events, current_chunk_id)
  rescue Exception => e
    log.error "Exception #{e.backtrace}"
  end
end