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[expand - 3 more] - Re: Questions about Kafka 0.9 API changes - Kafka - [mail # user]
...Thanks Valentin!GuozhangOn Sun, Sep 28, 2014 at 3:49 PM, Valentin  wrote: ...
   Author: Guozhang Wang, 2014-09-30, 00:52
Re: How producer gets the acknowledgement back - Kafka - [mail # dev]
...Hi,In the new (Java) producer, you can pass in a callback function in theFuture send(ProducerRecord record, Callback callback)call, which will be triggered when the ack is received.Alternati...
   Author: Guozhang Wang, 2014-09-25, 01:06
Re: Producer errors (failed to send producer request, failed to send requests for topics) - Kafka - [mail # user]
...Kyle, the new producer will handle this exception with the specificexception type, and the callback handling function can treat itaccordingly. Could you give the new producer client a try an...
   Author: Guozhang Wang, 2014-09-25, 01:03
[expand - 1 more] - Re: How to use RPC mechanism in Kafka? - Kafka - [mail # user]
...Agree with Svante, for your use case Kafka can be used to retain yourrequest messages, but it is not proper for RPC usages.On Mon, Sep 22, 2014 at 6:06 AM, svante karlsson  wrote: ...
   Author: Guozhang Wang, 2014-09-22, 16:51
Re: Handling errors in the new (0.8.2) Java Client's Producer - Kafka - [mail # user]
...Hello Andrew,I think you would want a sync producer for your use case? You can try tocall get() on the returned metadata future of the send() call instead ofusing a callback; the pattern is ...
   Author: Guozhang Wang, 2014-09-19, 19:32
Re: zookeeper upgrade or remove zookeeper dependency - Kafka - [mail # user]
...Hi Mingtao,We are shooting to cut the 0.8.2 branch this month.GuozhangOn Thu, Sep 18, 2014 at 10:36 AM, Mingtao Zhang wrote: ...
   Author: Guozhang Wang, 2014-09-18, 18:05
Re: (info)kafka truncate data of specific topic - Kafka - [mail # dev]
...Hi Jacky,Could you elaborate a bit on your use cases, like why you want to manuallytruncate logs? Kafka provide a set of configs for data retention based ondata size and time (for example ma...
   Author: Guozhang Wang, 2014-09-16, 17:22
[expand - 1 more] - Re: Error handling in new Java Producer - Kafka - [mail # dev]
...Hi Steve,You can try to reduce the metadata.fetch.timeout.ms config value, whichwill controll how much the send() call can be blocked upon broker metadatanot available (due to broker itself ...
   Author: Guozhang Wang, 2014-09-10, 02:10
[KAFKA-1482] Transient test failures for kafka.admin.DeleteTopicTest - Kafka - [issue]
...A couple of test cases have timing related transient test failures:kafka.admin.DeleteTopicTest > testPartitionReassignmentDuringDeleteTopic FAILED    junit.framework.Assert...
http://issues.apache.org/jira/browse/KAFKA-1482    Author: Guozhang Wang, 2014-09-05, 22:53
[KAFKA-1616] Purgatory Size and Num.Delayed.Request metrics are incorrect - Kafka - [issue]
...The request purgatory used two atomic integers "watched" and "unsatisfied" to record the purgatory size ( = watched + unsatisfied) and number of delayed requests ( = unsatisfied). But due to...
http://issues.apache.org/jira/browse/KAFKA-1616    Author: Guozhang Wang, 2014-09-05, 06:25
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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