Class: Fluent::HekkRedshiftOutput
- Inherits:
-
BufferedOutput
- Object
- BufferedOutput
- Fluent::HekkRedshiftOutput
- Defined in:
- lib/fluent/plugin/out_hekk_redshift.rb
Constant Summary collapse
- IGNORE_REDSHIFT_ERROR_REGEXP =
ignore load table error. (invalid data format)
/^ERROR: Load into table '[^']+' failed\./
Instance Method Summary collapse
- #configure(conf) ⇒ Object
- #format(tag, time, record) ⇒ Object
-
#initialize ⇒ HekkRedshiftOutput
constructor
A new instance of HekkRedshiftOutput.
- #start ⇒ Object
- #write(chunk) ⇒ Object
Constructor Details
#initialize ⇒ HekkRedshiftOutput
Returns a new instance of HekkRedshiftOutput.
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# File 'lib/fluent/plugin/out_hekk_redshift.rb', line 9 def initialize super require 'aws-sdk' require 'zlib' require 'time' require 'tempfile' require 'pg' require 'json' require 'csv' end |
Instance Method Details
#configure(conf) ⇒ Object
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# File 'lib/fluent/plugin/out_hekk_redshift.rb', line 47 def configure(conf) super @path = "#{@path}/" unless @path.end_with?('/') # append last slash @path = @path[1..-1] if @path.start_with?('/') # remove head slash @utc = true if conf['utc'] @db_conf = { host:@redshift_host, port:@redshift_port, dbname:@redshift_dbname, user:@redshift_user, password:@redshift_password } @delimiter = determine_delimiter(@file_type) if @delimiter.nil? or @delimiter.empty? $log.debug format_log("redshift file_type:#{@file_type} delimiter:'#{@delimiter}'") @copy_sql_template = "copy #{table_name_with_schema} from '%s' CREDENTIALS 'aws_access_key_id=#{@aws_key_id};aws_secret_access_key=%s' delimiter '#{@delimiter}' GZIP ESCAPE #{@redshift_copy_base_options} #{@redshift_copy_options};" @insert_sql_template = "insert into #{@redshift_copy_command_tablename}(#{@redshift_copy_command_columnname}) values('%s');" end |
#format(tag, time, record) ⇒ Object
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# File 'lib/fluent/plugin/out_hekk_redshift.rb', line 77 def format(tag, time, record) if json? record.to_msgpack elsif msgpack? { @record_log_tag => record }.to_msgpack else "#{record[@record_log_tag]}\n" end end |
#start ⇒ Object
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# File 'lib/fluent/plugin/out_hekk_redshift.rb', line 65 def start super # init s3 conf = { :access_key_id => @aws_key_id, :secret_access_key => @aws_sec_key } [:s3_endpoint] = @s3_endpoint if @s3_endpoint @s3 = AWS::S3.new() @bucket = @s3.buckets[@s3_bucket] end |
#write(chunk) ⇒ Object
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# File 'lib/fluent/plugin/out_hekk_redshift.rb', line 87 def write(chunk) $log.debug format_log('start creating gz.') # create a gz file tmp = Tempfile.new('s3-') tmp = if json? || msgpack? create_gz_file_from_structured_data(tmp, chunk, @delimiter) else create_gz_file_from_flat_data(tmp, chunk) end # no data -> skip unless tmp $log.debug format_log('received no valid data. ') return false # for debug end # create a file path with time format s3path = create_s3path(@bucket, @path) # upload gz to s3 @bucket.objects[s3path].write(Pathname.new(tmp.path), :acl => :bucket_owner_full_control) # close temp file tmp.close! # copy gz on s3 to redshift s3_uri = "s3://#{@s3_bucket}/#{s3path}" copy_sql = @copy_sql_template % [s3_uri, @aws_sec_key] sql = @insert_sql_template % [copy_sql.gsub(/'/, "\\\\'")] insert_sql_to_redshift(sql) true # for debug end |