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[KAFKA-910] Randomize the backoff in the clients to avoid all clients from sending metadata requests at the same time - Kafka - [issue]
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...Currently, all producer and consumer clients use a static backoff. So if a broker fails, most topics will lose some leaders. All clients will notice the absence of a leader at the same time,...
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http://issues.apache.org/jira/browse/KAFKA-910
Author: Neha Narkhede,
2013-05-18, 01:05
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[KAFKA-901] Kafka server can become unavailable if clients send several metadata requests - Kafka - [issue]
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...Currently, if a broker is bounced without controlled shutdown and there are several clients talking to the Kafka cluster, each of the clients realize the unavailability of leaders for some p...
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http://issues.apache.org/jira/browse/KAFKA-901
Author: Neha Narkhede,
2013-05-18, 01:00
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Re: heterogenous kafka cluster? - Kafka - [mail # user]
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...That does seem a little hacky. But I'm trying to understand the requirementbehind having to deploy heterogeneous hardware. What are you trying toachieve or optimize?Thanks,NehaOn Fri, May 17...
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Author: Neha Narkhede,
2013-05-17, 21:35
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Re: can producers(from same system) send messages to separate broker systems? - Kafka - [mail # user]
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...Do you have any tests that measure that your high priority data is beingdelayed ? Assuming you are using 0.8, the end to end latency can be reducedby tuning some configs on the consumer (fet...
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Author: Neha Narkhede,
2013-05-17, 21:26
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Re: Update: RE: are commitOffsets botched to zookeeper? - Kafka - [mail # user]
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...There is no particular need for storing the offsets in zookeeper. In factwith Kafka 0.8, since partitions will be highly available, offsets could bestored in Kafka topics. However, we haven'...
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Author: Neha Narkhede,
2013-05-17, 21:23
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Re: Setting a broker to be read-only? - Kafka - [mail # user]
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...There is no easy way to do this in 0.7. If you are using a VIP to producedata to Kafka, you can remove that broker host from the VIP. It will stillbe available for consumer reads until it is...
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Author: Neha Narkhede,
2013-05-17, 21:21
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Re: Getting the latest message always from Kafka - Kafka - [mail # user]
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...For every unit test, you want your server and consumer to start fresh. Inyour unit test, you maintain state in the KafkaManager across unit tests soyour tests don't work as expected. Try mov...
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Author: Neha Narkhede,
2013-05-17, 21:17
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Re: Our use case and am I right in my definition of Throughput? - Kafka - [mail # user]
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...Another parameter that you want to tune if you want higher throughput in0.7 is the broker side flush interval. If you set it to something high,like 50K or 100K, you can maximize the throughp...
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Author: Neha Narkhede,
2013-05-17, 21:14
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RE: WebMethods consumer for Kafka. - Kafka - [mail # user]
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...3.3.3 has known serious bugs. You should at least use 3.3.4. I am not awareof a JMS bridge. Contributions are welcome :)Thanks,NehaOn May 17, 2013 8:36 AM, "Seshadri, Balaji" wrote:> Hi N...
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Author: Neha Narkhede,
2013-05-17, 15:39
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RE: possible to shutdown a consumerConnector without flushing the offset - Kafka - [mail # user]
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...If you turn off auto.commit.enable, that will ensure that messages arereplayed whenever a consumer starts up and rebalances.Thanks,NehaOn May 17, 2013 6:35 AM, "Withers, Robert" ...
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Author: Neha Narkhede,
2013-05-17, 13:40
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