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Thanks Jay, just one comment below. clients/src/main/java/org/apache/kafka/clients/producer/internals/RecordBatch.java <https://reviews.apache.org/r/30763/#comment119772> It seems we haven't update the produce result here yet. So the value() call does not have baseOffset and topic partition information. It looks we have three things to do here in order: 1. set up the result 2. invoke callbacks 3. notify threads waiting on flush. Currently both 1 and 3 and done in this.produceFuture.done(), maybe we need to separate them? - Jiangjie Qin On Feb. 21, 2015, 11:37 p.m., Jay Kreps wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/30763/ > ----------------------------------------------------------- > > (Updated Feb. 21, 2015, 11:37 p.m.) > > > Review request for kafka. > > > Bugs: KAFKA-1865 > https://issues.apache.org/jira/browse/KAFKA-1865 > > > Repository: kafka > > > Description > ------- > > KAFKA-1865 Add a flush() method to the producer. > > > Diffs > ----- > > clients/src/main/java/org/apache/kafka/clients/Metadata.java > b8cdd145bfcc6633763b25fc9812c49627c8df92 > clients/src/main/java/org/apache/kafka/clients/producer/KafkaProducer.java > 1fd6917c8a5131254c740abad7f7228a47e3628c > clients/src/main/java/org/apache/kafka/clients/producer/MockProducer.java > 84530f2b948f9abd74203db48707e490dd9c81a5 > clients/src/main/java/org/apache/kafka/clients/producer/Producer.java > 17fe541588d462c68c33f6209717cc4015e9b62f > > clients/src/main/java/org/apache/kafka/clients/producer/internals/FutureRecordMetadata.java > 4a2da41f47994f778109e3c4107ffd90195f0bae > > clients/src/main/java/org/apache/kafka/clients/producer/internals/RecordAccumulator.java > ecfe2144d778a5d9b614df5278b9f0a15637f10b > > clients/src/main/java/org/apache/kafka/clients/producer/internals/RecordBatch.java > dd0af8aee98abed5d4a0dc50989e37888bb353fe > > clients/src/main/java/org/apache/kafka/common/errors/InterruptException.java > PRE-CREATION > clients/src/main/java/org/apache/kafka/common/utils/SystemTime.java > d682bd46ec3826f0a72388cc4ec30e1b1223d0f3 > clients/src/test/java/org/apache/kafka/clients/producer/BufferPoolTest.java > 4ae43ed47e31ad8052b4348a731da11120968508 > clients/src/test/java/org/apache/kafka/clients/producer/MetadataTest.java > 743aa7e523dd476949f484bfa4c7fb8a3afd7bf8 > > clients/src/test/java/org/apache/kafka/clients/producer/MockProducerTest.java > 75513b0bdd439329c5771d87436ef83fda853bfb > > clients/src/test/java/org/apache/kafka/clients/producer/RecordAccumulatorTest.java > 83338633717cfa4ef7cf2a590b5aa6b9c8cb1dd2 > core/src/test/scala/integration/kafka/api/ProducerSendTest.scala > b15237b76def3b234924280fa3fdb25dbb0cc0dc > core/src/test/scala/unit/kafka/utils/TestUtils.scala > 21d0ed2cb7c9459261d3cdc7c21dece5e2079698 > > Diff: https://reviews.apache.org/r/30763/diff/ > > > Testing > ------- > > > Thanks, > > Jay Kreps > >