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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
[expand - 1 more] - Re: Cluster design distribution and JBOD vs RAID - Kafka - [mail # user]
...I think we are saying the same thing. If any drive fails the broker isdown. But when the drive is repaired only the data on the destroyed drivewill need to be restored from replicas.-JayOn F...
   Author: Jay Kreps, 2014-04-19, 18:13
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