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Re: OutOfMemoryException when starting replacement node. - Kafka - [mail # user]
...Hey Solon,The 10MB size is per-partition. The rationale for this is that the fetchsize per-partition is effectively a max message size. However with so manypartitions on one machine this wil...
   Author: Jay Kreps, 2014-12-10, 18:43
[expand - 6 more] - Re: [DISCUSSION] adding the serializer api back to the new java producer - Kafka - [mail # user]
...Hey Sriram,Thanks! I think this is a very helpful summary.Let me try to address your point about passing in the serde at send time.I think the first objection is really to the paired key/val...
   Author: Jay Kreps, 2014-12-06, 01:02
[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
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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