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[expand - 4 more] - Re: benchmark kafka on 10GbE network - Kafka - [mail # user]
...Yeah, neither of those are simple to optimize. The CRC is already theoptimized java crc we stole from Hadoop. It may be possible to make thatfaster still but probably not easy. It might be p...
   Author: Jay Kreps, 2014-11-25, 17:30
Re: new producer api and batched Futures.... - Kafka - [mail # user]
...Internally it works as you describe, there is only one CountDownLatch perbatch sent, each of the futures is just a wrapper around that.It is true that if you accumulate thousands of futures ...
   Author: Jay Kreps, 2014-11-21, 00:57
Re: Are logs portable? - Kafka - [mail # user]
...Yes, this will work. You will want to configure the new instance with thesame node id as the failed instance.-JayOn Thu, Nov 20, 2014 at 10:06 AM, Parag Shah  wrote: ...
   Author: Jay Kreps, 2014-11-20, 23:17
Re: Welcome Kafka's newest committer - Kafka - [mail # dev]
...Congrats! Well deserved!-JayOn Wed, Nov 19, 2014 at 4:05 PM, Neha Narkhede wrote: ...
   Author: Jay Kreps, 2014-11-20, 00:15
Re: spikes in producer requests/sec - Kafka - [mail # user]
...There are some fixes in 0.8.2-beta for periodic latency spikes if you areusing acks=-1 in the producer.-JayOn Tue, Nov 11, 2014 at 10:50 AM, Wes Chow  wrote: ...
   Author: Jay Kreps, 2014-11-11, 23:29
Re: two questions regarding 0.8.2 producer code - Kafka - [mail # dev]
...1. No, the send does a poll/select on all the connections that will blockfor a specified time waiting for data to read or write on any connection.2. The api of the selector only allows you t...
   Author: Jay Kreps, 2014-11-10, 22:59
[KAFKA-559] Garbage collect old consumer metadata entries - Kafka - [issue]
...Many use cases involve tranient consumers. These consumers create entries under their consumer group in zk and maintain offsets there as well. There is currently no way to delete these entri...
http://issues.apache.org/jira/browse/KAFKA-559    Author: Jay Kreps, 2014-11-10, 04:08
[KAFKA-188] Support multiple data directories - Kafka - [issue]
...Currently we allow only a single data directory. This means that a multi-disk configuration needs to be a RAID array or LVM volume or something like that to be mounted as a single directory....
http://issues.apache.org/jira/browse/KAFKA-188    Author: Jay Kreps, 2014-11-07, 18:00
[KAFKA-1695] Authenticate connection to Zookeeper - Kafka - [issue]
...We need to make it possible to secure the Zookeeper cluster Kafka is using. This would make use of the normal authentication ZooKeeper provides. ZooKeeper supports a variety of authenticatio...
http://issues.apache.org/jira/browse/KAFKA-1695    Author: Jay Kreps, 2014-11-07, 01:54
Re: Strategies for high-concurrency consumers - Kafka - [mail # user]
...Unfortunately the performance of the consumer balancing scales poorly withthe number of partitions. This is one of the things the consumer rewriteproject is meant to address, however that is...
   Author: Jay Kreps, 2014-11-06, 19:32
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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