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Re: Intercept broker operation in Kafka - Kafka - [mail # user]
...Hey Ravi,I think what you want is available via log4j and jmx. Log4j ispluggable you can plug in any java code at runtime you want to handlethe log events. JMX can be called in any way you l...
   Author: Jay Kreps, 2014-06-27, 17:50
Re: Apache Kafka NYC Users Group! - Kafka - [mail # dev]
...This is great!-JayOn Thu, Jun 26, 2014 at 5:47 PM, Joe Stein  wrote: ...
   Author: Jay Kreps, 2014-06-27, 16:06
Re: Scalability question? - Kafka - [mail # user]
...I think currently we do a little over 200 billion events per day atLinkedIn, though we are not actually the largest Kafka user any more.On the whole scaling the volume of messages is actuall...
   Author: Jay Kreps, 2014-06-26, 21:12
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-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: 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
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB