Class: Embulk::Output::Vertica::OutputThread
- Inherits:
-
Object
- Object
- Embulk::Output::Vertica::OutputThread
- Defined in:
- lib/embulk/output/vertica/output_thread.rb
Instance Method Summary collapse
- #abort_on_error ⇒ Object
- #commit ⇒ Object
- #compress ⇒ Object
-
#copy(conn, sql, &block) ⇒ Object
private.
- #copy_mode ⇒ Object
- #copy_sql ⇒ Object
- #enqueue(json_page) ⇒ Object
- #fjsonparser ⇒ Object
-
#initialize(task) ⇒ OutputThread
constructor
A new instance of OutputThread.
- #num_format(number) ⇒ Object
- #quoted_schema ⇒ Object
- #quoted_table ⇒ Object
- #quoted_temp_table ⇒ Object
- #reject_on_materialized_type_error ⇒ Object
- #run ⇒ Object
- #start ⇒ Object
- #write_buf(buf, json_page, &block) ⇒ Object
- #write_gzip(io, page, &block) ⇒ Object
- #write_uncompressed(io, page, &block) ⇒ Object
Constructor Details
#initialize(task) ⇒ OutputThread
Returns a new instance of OutputThread.
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 48 def initialize(task) @task = task @queue = SizedQueue.new(1) @num_input_rows = 0 @num_output_rows = 0 @num_rejected_rows = 0 @outer_thread = Thread.current @thread_active = false @progress_log_timer = Time.now @previous_num_input_rows = 0 case task['compress'] when 'GZIP' @write_proc = self.method(:write_gzip) else @write_proc = self.method(:write_uncompressed) end end |
Instance Method Details
#abort_on_error ⇒ Object
211 212 213 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 211 def abort_on_error @task['abort_on_error'] ? ' ABORT ON ERROR' : '' end |
#commit ⇒ Object
162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 162 def commit @thread_active = false if @thread.alive? Embulk.logger.debug { "embulk-output-vertica: push finish" } @queue.push('finish') Thread.pass @thread.join else raise RuntimeError, "embulk-output-vertica: thread died accidently" end task_report = { 'num_input_rows' => @num_input_rows, 'num_output_rows' => @num_output_rows, 'num_rejected_rows' => @num_rejected_rows, } end |
#compress ⇒ Object
203 204 205 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 203 def compress " #{@task['compress']}" end |
#copy(conn, sql, &block) ⇒ Object
private
182 183 184 185 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 182 def copy(conn, sql, &block) Embulk.logger.debug "embulk-output-vertica: #{sql}" results, rejects = conn.copy(sql, &block) end |
#copy_mode ⇒ Object
207 208 209 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 207 def copy_mode " #{@task['copy_mode']}" end |
#copy_sql ⇒ Object
187 188 189 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 187 def copy_sql @copy_sql ||= "COPY #{quoted_schema}.#{quoted_temp_table} FROM STDIN#{compress}#{fjsonparser}#{copy_mode}#{abort_on_error} NO COMMIT" end |
#enqueue(json_page) ⇒ Object
67 68 69 70 71 72 73 74 75 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 67 def enqueue(json_page) if @thread_active and @thread.alive? Embulk.logger.trace { "embulk-output-vertica: enqueue" } @queue.push(json_page) else Embulk.logger.info { "embulk-output-vertica: thread is dead, but still trying to enqueue" } raise RuntimeError, "embulk-output-vertica: thread is died, but still trying to enqueue" end end |
#fjsonparser ⇒ Object
215 216 217 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 215 def fjsonparser " PARSER fjsonparser(#{reject_on_materialized_type_error})" end |
#num_format(number) ⇒ Object
105 106 107 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 105 def num_format(number) number.to_s.gsub(/(\d)(?=(\d{3})+(?!\d))/, '\1,') end |
#quoted_schema ⇒ Object
191 192 193 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 191 def quoted_schema ::Jvertica.quote_identifier(@task['schema']) end |
#quoted_table ⇒ Object
195 196 197 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 195 def quoted_table ::Jvertica.quote_identifier(@task['table']) end |
#quoted_temp_table ⇒ Object
199 200 201 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 199 def quoted_temp_table ::Jvertica.quote_identifier(@task['temp_table']) end |
#reject_on_materialized_type_error ⇒ Object
219 220 221 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 219 def reject_on_materialized_type_error @task['reject_on_materialized_type_error'] ? 'reject_on_materialized_type_error=true' : '' end |
#run ⇒ Object
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 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 109 def run Embulk.logger.debug { "embulk-output-vertica: thread started" } Vertica.connect(@task) do |jv| begin last_record = nil num_output_rows, rejects = copy(jv, copy_sql) do |stdin| while json_page = @queue.pop if json_page == 'finish' Embulk.logger.debug { "embulk-output-vertica: popped finish" } break end Embulk.logger.trace { "embulk-output-vertica: dequeued" } @write_proc.call(stdin, json_page) do |record| last_record = record end end end Embulk.logger.debug { "embulk-output-vertica: thread finished" } num_rejected_rows = rejects.size @num_output_rows += num_output_rows @num_rejected_rows += num_rejected_rows Embulk.logger.info { "embulk-output-vertica: COMMIT!" } jv.commit Embulk.logger.debug { "embulk-output-vertica: COMMITTED!" } rescue java.sql.SQLDataException => e if @task['reject_on_materialized_type_error'] and e. =~ /Rejected by user-defined parser/ Embulk.logger.warn "embulk-output-vertica: ROLLBACK! some of column types and values types do not fit #{last_record}" else Embulk.logger.warn "embulk-output-vertica: ROLLBACK!" end Embulk.logger.info { "embulk-output-vertica: last_record: #{last_record}" } jv.rollback raise e # die transaction rescue => e Embulk.logger.warn "embulk-output-vertica: ROLLBACK!" jv.rollback raise e end end rescue => e @thread_active = false # not to be enqueued any more while @queue.size > 0 @queue.pop # dequeue all because some might be still trying @queue.push and get blocked, need to release end @outer_thread.raise e.class.new("#{e.}\n #{e.backtrace.join("\n ")}") end |
#start ⇒ Object
157 158 159 160 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 157 def start @thread = Thread.new(&method(:run)) @thread_active = true end |
#write_buf(buf, json_page, &block) ⇒ Object
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 89 def write_buf(buf, json_page, &block) json_page.each do |record| yield(record) if block_given? Embulk.logger.trace { "embulk-output-vertica: record #{record}" } buf << record << "\n" @num_input_rows += 1 end now = Time.now if @progress_log_timer < now - 10 # once in 10 seconds speed = ((@num_input_rows - @previous_num_input_rows) / (now - @progress_log_timer).to_f).round(1) @progress_log_timer = now @previous_num_input_rows = @num_input_rows Embulk.logger.info { "embulk-output-vertica: num_input_rows #{num_format(@num_input_rows)} (#{num_format(speed)} rows/sec)" } end end |
#write_gzip(io, page, &block) ⇒ Object
77 78 79 80 81 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 77 def write_gzip(io, page, &block) buf = Zlib::Deflate.new write_buf(buf, page, &block) io << buf.finish end |
#write_uncompressed(io, page, &block) ⇒ Object
83 84 85 86 87 |
# File 'lib/embulk/output/vertica/output_thread.rb', line 83 def write_uncompressed(io, page, &block) buf = '' write_buf(buf, page, &block) io << buf end |