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Re: Consumers don't get any data if broker leader is down - Kafka - [mail # user]
...It could be that broker 1 and 3 can't communicate with broker 2 and theconsumer client. You may want to readhttps://cwiki.apache.org/confluence/display/KAFKA/FAQ#FAQ-Whycan'tmyconsumers/prod...
   Author: Jun Rao, 2014-09-27, 15:41
[expand - 2 more] - Re: Questions about Kafka 0.9 API changes - Kafka - [mail # user]
...Valentin,That's a good point. We don't have this use case in mind when designing thenew consumer api. A straightforward implementation could be removing thelocally cached topic metadata for ...
   Author: Jun Rao, 2014-09-27, 15:31
[expand - 2 more] - Re: Repost: Busy CPU while negotiating contentBuffer size at BoundedByteBufferReceive.scala:54 - Kafka - [mail # user]
...You probably also want to check the request time jmx (in particularFetchRequest time) on the broker to see if the broker is healthy.Thanks,JunOn Fri, Sep 26, 2014 at 3:02 PM, Jagbir Hooda &n...
   Author: Jun Rao, 2014-09-27, 15:15
[expand - 2 more] - Re: Producer errors (failed to send producer request, failed to send requests for topics) - Kafka - [mail # user]
...Kyle,We have developed a new (pure java) producer in trunk. It should havebetter error messaging. Could you give it a try and see if it points outthe problem clearer to you?Thanks,JunOn Tue,...
   Author: Jun Rao, 2014-09-25, 00:48
Re: Interaction of retention settings for broker and topic plus partitions - Kafka - [mail # user]
...That's right. The rule is that a log segment is deleted if either the sizeor the time limit is reached. Log sizes are per partition.Thanks,JunOn Thu, Sep 18, 2014 at 2:55 PM, Cory Watson &nb...
   Author: Jun Rao, 2014-09-20, 04:28
Re: kafka 0.8.1: Producer.send() can block forever when a broker is down - Kafka - [mail # dev]
...Jack,If the broker is down, channel.connect() should throw an IOException,instead of blocking forever. In your case, is the broker host down? In thatcase, the connect call will likely wait f...
   Author: Jun Rao, 2014-09-17, 05:08
[expand - 3 more] - Re: Need Document and Explanation Of New Metrics Name in New Java Producer on Kafka Trunk - Kafka - [mail # user]
...Yes, that description is not precise. We do allow dots in general. However,a topic can't be just "." or "..".Thanks,JunOn Mon, Sep 15, 2014 at 9:31 AM, Michael G. Noll <michael+[EMAIL PRO...
   Author: Jun Rao, 2014-09-16, 00:12
Re: no zk connection timeout in consumer config of kafka 0.7? - Kafka - [mail # user]
...We have that in 0.7 too. It's called zk.connectiontimeout.ms.Thanks,JunOn Mon, Sep 15, 2014 at 12:55 AM, Yonghui Zhao wrote: ...
   Author: Jun Rao, 2014-09-16, 00:08
Re: head() on Kafka stream gives NoSuchMethodError - Kafka - [mail # user]
...head() is a scala method. Calling it from java requires you to figure outthe exact class name in byte code. A simpler way is to use the javaiterable api in KafkaStream. By default, it blocks...
   Author: Jun Rao, 2014-09-15, 05:28
Re: (info)how kafka delete the specific topic data - Kafka - [mail # dev]
...We are working on an admin tool to delete an existing topic in trunk.Thanks,JunOn Sat, Sep 13, 2014 at 1:22 AM, Jacky.J.Wang (mis.cnxa01.Newegg) 43048 <[EMAIL PROTECTED]lid> wrote:&nbs...
   Author: Jun Rao, 2014-09-14, 17:52
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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