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Re: keyed-messages & de-duplication - Kafka - [mail # user]
...Hi,The compaction is done to clean-up space. It isn't done immediately onlyperiodically.I suspect the reason you see no compaction is that we never compact theactive segment of the log (the ...
   Author: Jay Kreps, 2014-05-14, 01:35
Re: 100 MB messages - Kafka - [mail # user]
...It can, but it will not perform very well. Kafka fully instantiatesmessages in memory (as a byte[] basically) so if you send a 100MB messagethe server will do a 100MB allocation to hold that...
   Author: Jay Kreps, 2014-05-14, 00:11
Re: Review Request 21304: Fix KAFKA-1445 - Kafka - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/21304/#review42734clients/src/main/java/org/apache/kafka/clients/producer/internals/RecordAccumulator....
   Author: Jay Kreps, 2014-05-12, 19:42
[KAFKA-1441] Purgatory purge causes latency spikes - Kafka - [issue]
...The request purgatory has a funky thing where it periodically loops over all watches and purges them. If you have a fair number of partitions you can accumulate lots of watches and purging t...
http://issues.apache.org/jira/browse/KAFKA-1441    Author: Jay Kreps, 2014-05-12, 17:33
Re: JAVA HEAP settings for KAFKA in production - Kafka - [mail # user]
...Hey Todd,Doc patch? :-)svn co http://svn.apache.org/repos/asf/kafka/site/081/Don't stress about html or formatting, I'm happy to do that part. I wouldlove to give people more authoritative a...
   Author: Jay Kreps, 2014-05-06, 17:32
Re: 0.7.1 Will there be any log info under poor network which packet may lose? - Kafka - [mail # user]
...TCP will attempt to resend until the packets are successfully delivered ora timeout occurs. So a packet loss should not lead to an error. The erroryou see in your log is the queue of unsent ...
   Author: Jay Kreps, 2014-05-05, 17:39
Re: 0.8.1 Java Producer API Callbacks - Kafka - [mail # user]
...This summary is correct. If you are just starting development now it isprobably reasonable to start with the new producer. We would certainlyappreciate any feedback on it.My recommendation w...
   Author: Jay Kreps, 2014-05-02, 17:08
Re: Kafka Mock - Kafka - [mail # user]
...With the new Java Kafka clients we are shipping a mock producer andconsumer. E.g.https://github.com/apache/kafka/blob/0.8.1/clients/src/main/java/org/apache/kafka/clients/producer/MockProduc...
   Author: Jay Kreps, 2014-04-30, 16:12
Re: 0.8.1 cpu usage - Kafka - [mail # user]
...Hm, this seems counter-intuitive. Running 3x per second vs 2x per secondshould not really register on a modern CPU, right? Can you try this and seeif you notice any difference?On Wed, Apr 30...
   Author: Jay Kreps, 2014-04-30, 16:00
Re: Topic Reassignment Tool Improvements - Kafka - [mail # user]
...I don't think we are doing anything at the moment to improve this, but Ithink we agree it could be improved. We would welcome a contribution here.The best way to proceed would just be to wri...
   Author: Jay Kreps, 2014-04-24, 02:41
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