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[expand - 1 more] - Re: kafka consumer fail over - Kafka - [mail # user]
...Weide,Like Daniel said, the rebalance logic is deterministic as round robin, soif you have a total number of partitions as n, and each one (master orslave) machine also has n threads, then a...
   Author: Guozhang Wang, 2014-08-04, 15:27
Re: find topic partition count through simpleclient api - Kafka - [mail # user]
...One seed broker should be enough, and the the number of partitionMetadatashould be the same as num. of partitions. One note here is that themetadata is propagated asynchronously to the broke...
   Author: Guozhang Wang, 2014-08-01, 17:03
Re: Consume more than produce - Kafka - [mail # user]
...What is the ack value used in the producer?On Fri, Aug 1, 2014 at 1:28 AM, Guy Doulberg wrote: ...
   Author: Guozhang Wang, 2014-08-01, 15:07
Re: Most common kafka client comsumer implementations? - Kafka - [mail # user]
...Hi Jim,Whether to use high level or simple consumer depends on your use case. Ifyou need to manually manage partition assignments among your consumers, oryou need to commit your offsets else...
   Author: Guozhang Wang, 2014-07-31, 15:16
Re: Changing the Replication Factor - Kafka - [mail # user]
...It is possible to change the replication factor by using the partitionreassignment tool:http://kafka.apache.org/documentation.html#basic_ops_increase_replication_factorbut it requires a manu...
   Author: Guozhang Wang, 2014-07-31, 15:06
[expand - 14 more] - Re: Lost messages during leader election - Kafka - [mail # user]
...Good to know. The issue with initial replica factor = 1 is still a real bugthough, and I will probably fix it along with KAFKA-1430.GuozhangOn Tue, Jul 29, 2014 at 10:27 AM, Jad Naous wrote:...
   Author: Guozhang Wang, 2014-07-29, 17:57
Re: request.required.acks in Async Mode - Kafka - [mail # user]
...request.required.acks and producer.mode (sync or async) are orthogonalconfigs, i.e. with async mode, the producer.send() call itself will not beblocking on acks from the servers, but its asy...
   Author: Guozhang Wang, 2014-07-29, 15:10
[expand - 2 more] - Re: Gradle hanging on unit test run against ProducerFailureHangingTest->testBrokerFailure - Kafka - [mail # dev]
...Did you miss the attachment?On Fri, Jul 25, 2014 at 10:44 AM, David Corley wrote: ...
   Author: Guozhang Wang, 2014-07-25, 17:55
[KAFKA-1211] Hold the produce request with ack > 1 in purgatory until replicas' HW has larger than the produce offset - Kafka - [issue]
...Today during leader failover we will have a weakness period when the followers truncate their data before fetching from the new leader, i.e., number of in-sync replicas is just 1. If during ...
http://issues.apache.org/jira/browse/KAFKA-1211    Author: Guozhang Wang, 2014-07-25, 05:47
[KAFKA-1483] Split Brain about Leader Partitions - Kafka - [issue]
...Today in the server there are two places storing the leader partition info:1) leaderPartitions list in the ReplicaManager.2) leaderBrokerIdOpt in the Partition.1) is used as the ground truth...
http://issues.apache.org/jira/browse/KAFKA-1483    Author: Guozhang Wang, 2014-07-25, 00:51
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