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[KAFKA-686] 0.8 Kafka broker should give a better error message when running against 0.7 zookeeper - Kafka - [issue]
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...People will not know that the zookeeper paths are not compatible. When you try to start the 0.8 broker pointed at a 0.7 zookeeper you get a NullPointerException. We should detect this and gi...
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http://issues.apache.org/jira/browse/KAFKA-686
Author: Jay Kreps,
2013-06-13, 16:33
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[KAFKA-322] Remove one-off Send objects - Kafka - [issue]
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...We seem to be accumulating a bunch of unnecessary classes that implement Send. I am not sure why people are doing this. Example:ProducerResponseSend.scalaIt is not at all clear why we would ...
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http://issues.apache.org/jira/browse/KAFKA-322
Author: Jay Kreps,
2013-06-13, 15:53
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[KAFKA-649] Cleanup log4j logging - Kafka - [issue]
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...Review the logs and do the following:1. Fix confusing or duplicative messages2. Assess that messages are at the right level (TRACE/DEBUG/INFO/WARN/ERROR)It would also be nice to add a log4j ...
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http://issues.apache.org/jira/browse/KAFKA-649
Author: Jay Kreps,
2013-05-29, 18:01
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[KAFKA-925] Add optional partition key override in producer - Kafka - [issue]
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...We have a key that is used for partitioning in the producer and stored with the message. Actually these uses, though often the same, could be different. The two meanings are effectively:1. A...
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http://issues.apache.org/jira/browse/KAFKA-925
Author: Jay Kreps,
2013-05-29, 16:52
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[KAFKA-642] Protocol tweaks for 0.8 - Kafka - [issue]
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...There are a couple of things in the protocol that are not idea. It would be good to tweak these for 0.8 so we start clean.Here is a set of problems and proposals:Problems:1. Correlation id i...
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http://issues.apache.org/jira/browse/KAFKA-642
Author: Jay Kreps,
2013-05-16, 00:56
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Re: producer creating multiple log files after message sending - Kafka - [mail # user]
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...I think there is a misunderstanding here. The log file division iscompletely transparent to the consumer. The consumer consumes byoffset (0,1,2,3,...) and these offsets span log files (i.e. ...
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Author: Jay Kreps,
2013-04-18, 16:20
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Re: We have an invalid message in a segment, how to deal with it? - Kafka - [mail # user]
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...I think the error you are seeing is due to the gap in the log. In 0.7we validate that the log is contiguous and by deleting a segment youare missing a chunk which would lead to problems in f...
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Author: Jay Kreps,
2013-04-13, 18:32
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Re: We have an invalid message in a segment, how to deal with it? - Kafka - [mail # user]
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...You should be able to just bounce the broker. Our default policy isthat if we run out of space we shut down the broker automatically asin that case there is no guarantee on what has been wri...
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Author: Jay Kreps,
2013-04-13, 18:28
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interesting paper on log replication - Kafka - [mail # dev]
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...Very similar in design to kafka replicationhttps://ramcloud.stanford.edu/wiki/download/attachments/11370504/raft.pdf-Jay ...
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Author: Jay Kreps,
2013-04-10, 05:34
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Re: Thoughts on using Ant+Ivy for the build? - Kafka - [mail # dev]
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...I think the biggest problem is that there isn't clear ownership of thebuild stuff we have. SBT is probably fine if you know it well. Ant andmaven are probably the same. The problem is that n...
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Author: Jay Kreps,
2013-04-08, 20:20
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