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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
[KAFKA-1561] Data Loss for Incremented Replica Factor and Leader Election - Kafka - [issue]
...This is reported on the mailing list (thanks to Jad).Hi,I have a test that continuously sends messages to one broker, brings upanother broker, and adds it as a replica for all partitions, wi...
http://issues.apache.org/jira/browse/KAFKA-1561    Author: Guozhang Wang, 2014-07-29, 00:22
[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
[expand - 2 more] - Re: ConsumerConnector not processing partitions on a particular kafka broker. - Kafka - [mail # user]
...Hmm, that is a bit wired. Did you make sure the consumer logs are turned atleast on the INFO level?GuozhangOn Thu, Jul 24, 2014 at 10:05 AM, Pablo Picko  wrote: ...
   Author: Guozhang Wang, 2014-07-24, 17:22
[KAFKA-1192] Enable DumpLogSegments tool to deserialize messages - Kafka - [issue]
...Currently the DumpLogSegments tool reads the message payloads as strings by default, which will not display the messages correctly if the messages are deserialized with another class. By ena...
http://issues.apache.org/jira/browse/KAFKA-1192    Author: Guozhang Wang, 2014-07-24, 01:10
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