Class: Fluent::Plugin::MysqlBulkOutput
- Inherits:
-
Output
- Object
- Output
- Fluent::Plugin::MysqlBulkOutput
- Defined in:
- lib/fluent/plugin/out_mysql_bulk.rb
Instance Attribute Summary collapse
-
#handler ⇒ Object
Returns the value of attribute handler.
Instance Method Summary collapse
- #check_table_schema(database: @database, table: @table) ⇒ Object
- #client(database) ⇒ Object
- #configure(conf) ⇒ Object
- #expand_placeholders(metadata) ⇒ Object
- #format(tag, time, record) ⇒ Object
- #formatted_to_msgpack_binary ⇒ Object
-
#initialize ⇒ MysqlBulkOutput
constructor
A new instance of MysqlBulkOutput.
- #multi_workers_ready? ⇒ Boolean
- #write(chunk) ⇒ Object
Constructor Details
#initialize ⇒ MysqlBulkOutput
Returns a new instance of MysqlBulkOutput.
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 59 def initialize super require 'mysql2-cs-bind' end |
Instance Attribute Details
#handler ⇒ Object
Returns the value of attribute handler.
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 57 def handler @handler end |
Instance Method Details
#check_table_schema(database: @database, table: @table) ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 107 def check_table_schema(database: @database, table: @table) _client = client(database) result = _client.xquery("SHOW COLUMNS FROM #{table}") max_lengths = [] @column_names.each do |column| info = result.select { |x| x['Field'] == column }.first r = /(char|varchar)\(([\d]+)\)/ begin max_length = info['Type'].scan(r)[0][1].to_i rescue max_length = nil end max_lengths << max_length end max_lengths ensure if not _client.nil? then _client.close end end |
#client(database) ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 139 def client(database) Mysql2::Client.new( host: @host, port: @port, username: @username, password: @password, database: database, sslkey: @sslkey, sslcert: @sslcert, sslca: @sslca, sslcapath: @sslcapath, sslcipher: @sslcipher, sslverify: @sslverify, flags: Mysql2::Client::MULTI_STATEMENTS ) end |
#configure(conf) ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 64 def configure(conf) compat_parameters_convert(conf, :buffer, :inject) super if @column_names.nil? fail Fluent::ConfigError, 'column_names MUST specified, but missing' end if @on_duplicate_key_update if @on_duplicate_update_keys.nil? fail Fluent::ConfigError, 'on_duplicate_key_update = true , on_duplicate_update_keys nil!' end @on_duplicate_update_keys = @on_duplicate_update_keys.split(',') if !@on_duplicate_update_custom_values.nil? @on_duplicate_update_custom_values = @on_duplicate_update_custom_values.split(',') if @on_duplicate_update_custom_values.length != @on_duplicate_update_keys.length fail Fluent::ConfigError, <<-DESC on_duplicate_update_keys and on_duplicate_update_custom_values must be the same length DESC end end @on_duplicate_key_update_sql = ' ON DUPLICATE KEY UPDATE ' updates = [] @on_duplicate_update_keys.each_with_index do |update_column, i| if @on_duplicate_update_custom_values.nil? || @on_duplicate_update_custom_values[i] == "#{update_column}" updates << "#{update_column} = VALUES(#{update_column})" else value = @on_duplicate_update_custom_values[i].to_s.match(/\${(.*)}/)[1] escape_value = Mysql2::Client.escape(value) updates << "#{update_column} = #{escape_value}" end end @on_duplicate_key_update_sql += updates.join(',') end @column_names = @column_names.split(',').collect(&:strip) @key_names = @key_names.nil? ? @column_names : @key_names.split(',').collect(&:strip) @json_key_names = @json_key_names.split(',') if @json_key_names @unixtimestamp_key_names = @unixtimestamp_key_names.split(',') if @unixtimestamp_key_names end |
#expand_placeholders(metadata) ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 156 def () database = extract_placeholders(@database, ).gsub('.', '_') table = extract_placeholders(@table, ).gsub('.', '_') return database, table end |
#format(tag, time, record) ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 126 def format(tag, time, record) record = inject_values_to_record(tag, time, record) [tag, time, record].to_msgpack end |
#formatted_to_msgpack_binary ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 131 def formatted_to_msgpack_binary true end |
#multi_workers_ready? ⇒ Boolean
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 135 def multi_workers_ready? true end |
#write(chunk) ⇒ Object
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# File 'lib/fluent/plugin/out_mysql_bulk.rb', line 162 def write(chunk) database, table = (chunk.) max_lengths = check_table_schema(database: database, table: table) @handler = client(database) values = [] values_template = "(#{ @column_names.map { |key| '?' }.join(',') })" chunk.msgpack_each do |tag, time, data| data = format_proc.call(tag, time, data, max_lengths) values << Mysql2::Client.pseudo_bind(values_template, data) end sql = "INSERT INTO #{table} (#{@column_names.map{|x| "`#{x.to_s.gsub('`', '``')}`"}.join(',')}) VALUES #{values.join(',')}" sql += @on_duplicate_key_update_sql if @on_duplicate_key_update log.info "bulk insert values size (table: #{table}) => #{values.size}" @handler.query("SET SESSION TRANSACTION ISOLATION LEVEL #{transaction_isolation_level}") if @transaction_isolation_level @handler.xquery(sql) @handler.close end |