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[KAFKA-1351] String.format is very expensive in Scala - Kafka - [issue]
...As found in KAFKA-1350, logging is causing significant overhead in the performance of a Kafka server. There are several info statements that use String.format which is particularly expensive...
http://issues.apache.org/jira/browse/KAFKA-1351    Author: Neha Narkhede, 2015-04-26, 17:58
[expand - 1 more] - Re: Should 0.8.3 consumers correctly function with 0.8.2 brokers? - Kafka - [mail # dev]
...My understanding is that ideally the 0.8.3 consumer should work with an0.8.2 broker if the offset commit config was set to "zookeeper".The only thing that might not work is offset commit to ...
   Author: Neha Narkhede, 2015-04-24, 04:23
Re: [DISCUSS] KIP 20 Enable log preallocate to improve consume performance under windows and some old Linux file system - Kafka - [mail # dev]
...+1. I've tried this on Linux and it helps reduce the spikes in append (andhence producer) latency for high throughput writes. I am not entirely surewhy but my suspicion is that in the absenc...
   Author: Neha Narkhede, 2015-04-21, 16:41
[KAFKA-1974] NPE in SelectorTest on trunk - Kafka - [issue]
...java.lang.NullPointerException at org.apache.kafka.common.network.SelectorTest.teardown(SelectorTest.java:57) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.Na...
http://issues.apache.org/jira/browse/KAFKA-1974    Author: Neha Narkhede, 2015-04-19, 17:51
Re: Please add me to the contributor list - Kafka - [mail # dev]
...Hi Vijay,Thanks for your interest in contributing to Kafka. Here is a link to somenewbieJIRAs that you can start looking into. You can follow instructions tocontribute a patch here .Thanks,N...
   Author: Neha Narkhede, 2015-04-10, 20:53
[KAFKA-902] Randomize backoff on the clients for metadata requests - Kafka - [issue]
...If a Kafka broker dies and there are a large number of clients talking to the Kafka cluster, each of the clients can end up shooting metadata requests at around the same time. It is better t...
http://issues.apache.org/jira/browse/KAFKA-902    Author: Neha Narkhede, 2015-04-08, 06:32
[KAFKA-1086] Improve GetOffsetShell to find metadata automatically - Kafka - [issue]
...GetOffsetShell needs to be improved to work well with 0.8. Currently, it requires the user to manually plug in the right leader which also limits finding the offsets for all partitions of a ...
http://issues.apache.org/jira/browse/KAFKA-1086    Author: Neha Narkhede, 2015-04-04, 22:49
[KAFKA-264] Change the consumer side load balancing and distributed co-ordination to use a consumer co-ordinator - Kafka - [issue]
...A high level design for the zookeeper consumer is here - https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Detailed+Consumer+Coordinator+Design...
http://issues.apache.org/jira/browse/KAFKA-264    Author: Neha Narkhede, 2015-04-04, 22:33
[KAFKA-1546] Automate replica lag tuning - Kafka - [issue]
...Currently, there is no good way to tune the replica lag configs to automatically account for high and low volume topics on the same cluster. For the low-volume topic it will take a very long...
http://issues.apache.org/jira/browse/KAFKA-1546    Author: Neha Narkhede, 2015-04-04, 02:43
[KAFKA-1634] Improve semantics of timestamp in OffsetCommitRequests and update documentation - Kafka - [issue]
...From the mailing list -following up on this – I think the online API docs for OffsetCommitRequeststill incorrectly refer to client-side timestamps:https://cwiki.apache.org/confluence/d...
http://issues.apache.org/jira/browse/KAFKA-1634    Author: Neha Narkhede, 2015-03-30, 21:41
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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