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RE: are commitOffsets botched to zookeeper? - Kafka - [mail # user]
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...Zookeeper 3.4.x is API compatible. However to get full benefits, we willhave to change kafka code to use the batch API that zookeeper 3.4.xprovides. Also, we use zkclient library to interfac...
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Author: Neha Narkhede,
2013-05-20, 16:40
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Re: hi plz reple me - Kafka - [mail # user]
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...You can do that using Kafka. Please read the design details here -http://kafka.apache.org/07/design.htmlThanks,NehaOn May 20, 2013 6:57 AM, "satya prakash" wrote:> i am using kafka ...
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Author: Neha Narkhede,
2013-05-20, 13:59
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Re: What happens if one broker goes down - Kafka - [mail # user]
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...0.7.2 does not support replication. So when a broker goes down, there canbe some data loss. If you are ok with duplicates, you can configure theproducer side retries to be higher.Thanks,Neha...
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Author: Neha Narkhede,
2013-05-20, 13:56
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Re: can producers(from same system) send messages to separate broker systems? - Kafka - [mail # user]
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...The feature I mentioned is only available on 0.8. In 0.7.2, you can tweakproducer batch size and the flush interval on the broker for the highpriority topics. Note that setting those too low...
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Author: Neha Narkhede,
2013-05-20, 13:54
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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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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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