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Re: How does number of partitions affect sequential disk IO - Kafka - [mail # user]
...The primary relevant factor here is the fsync interval. Kafka's replicationguarantees do not require fsyncing every message, so the reason for doingso is to handle correlated power loss (a p...
   Author: Jay Kreps, 2014-06-24, 16:19
[KAFKA-260] Add audit trail to kafka - Kafka - [issue]
...LinkedIn has a system that does monitoring on top of our data flow to ensure all data is delivered to all consumers of data. This works by having each logical "tier" through which data passe...
http://issues.apache.org/jira/browse/KAFKA-260    Author: Jay Kreps, 2014-06-23, 20:12
[KAFKA-1291] Make wrapper shell scripts for important tools - Kafka - [issue]
...It is nice to have a proper command for the important tools just to help with discoverability. I noticed that mirror maker doesn't have such a wrapper. Neither does consumer offset checker. ...
http://issues.apache.org/jira/browse/KAFKA-1291    Author: Jay Kreps, 2014-06-19, 22:07
Re: Review Request 22762: Patch for KAFKA-1316 - Kafka - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/22762/(Updated June 19, 2014, 9:01 p.m.)Review request for kafka.Summary (updated)Patch for KAFKA-1316...
   Author: Jay Kreps, 2014-06-19, 21:01
Re: Kafka latency measures - Kafka - [mail # user]
...There were actually several patches against trunk since 0.8.1.1 that mayimpact latency however, especially when using acks=-1. So those results inthe blog may be a bit better than what you w...
   Author: Jay Kreps, 2014-06-19, 20:57
[KAFKA-374] Move to java CRC32 implementation - Kafka - [issue]
...We keep a per-record crc32. This is fairly cheap algorithm, but the java implementation uses JNI and it seems to be a bit expensive for small records. I have seen this before in Kafka profil...
http://issues.apache.org/jira/browse/KAFKA-374    Author: Jay Kreps, 2014-06-19, 06:17
[KAFKA-367] StringEncoder/StringDecoder use platform default character set - Kafka - [issue]
...StringEncoder and StringDecoder take the platform default character set. This is bad since the messages they produce are sent off that machine. We should– add a new required argument t...
http://issues.apache.org/jira/browse/KAFKA-367    Author: Jay Kreps, 2014-06-19, 06:16
[KAFKA-616] Implement acks=0 - Kafka - [issue]
...For completeness it would be nice to handle the case where acks=0 in the produce request. The meaning of this would be that the broker immediately responds without blocking even on the local...
http://issues.apache.org/jira/browse/KAFKA-616    Author: Jay Kreps, 2014-06-19, 06:11
[KAFKA-653] Allow getTopicMetadata to get metadata for all topics - Kafka - [issue]
...Currently the topic metadata api requires a list of topics. This is good when you know what you want, but for tools that need to replicate all topics or those that match a pattern or somethi...
http://issues.apache.org/jira/browse/KAFKA-653    Author: Jay Kreps, 2014-06-19, 06:11
Looking for review on two trivial patches - Kafka - [mail # dev]
...Looking for review:https://reviews.apache.org/r/22744/https://reviews.apache.org/r/22762-Jay ...
   Author: Jay Kreps, 2014-06-18, 22:45
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