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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, 2015-03-26, 23:20
[KAFKA-527] Compression support does numerous byte copies - Kafka - [issue]
...The data path for compressing or decompressing messages is extremely inefficient. We do something like 7  complete copies of the data, often for simple things like adding a 4 byte size ...
http://issues.apache.org/jira/browse/KAFKA-527    Author: Jay Kreps, 2015-03-26, 22:55
[expand - 11 more] - Re: [VOTE] KIP-15 add a close with timeout to new producer - Kafka - [mail # dev]
...Yes it is killing the thread (and effectively the producer as well)but I think that is appropriate since calling close with a timeout fromcallback is fundamentally a programming error - spec...
   Author: Joel Koshy, 2015-03-26, 22:40
[KAFKA-1595] Remove deprecated and slower scala JSON parser from kafka.consumer.TopicCount - Kafka - [issue]
...The following issue is created as a follow up suggested by Jun Raoin a kafka news group message with the Subject"Blocking Recursive parsing from kafka.consumer.TopicCount$.constructTopicCoun...
http://issues.apache.org/jira/browse/KAFKA-1595    Author: Jagbir, 2015-03-26, 22:35
[KAFKA-2017] Persist Coordinator State for Coordinator Failover - Kafka - [issue]
...When a coordinator fails, the group membership protocol tries to failover to a new coordinator without forcing all the consumers rejoin their groups. This is possible if the coordinator pers...
http://issues.apache.org/jira/browse/KAFKA-2017    Author: Onur Karaman, 2015-03-26, 22:32
[expand - 1 more] - Re: Producer Behavior When one or more Brokers' Disk is Full. - Kafka - [mail # user]
...Hi Bhavesh,1. Server disk-full is treated the same as other error, that an error codewill be returned (in this case I think it is "Unknown" error though, asdisk IO exception is not specifica...
   Author: Guozhang Wang, 2015-03-26, 22:21
Thread Safety in KafkaServer.scala - Kafka - [mail # dev]
...KafkaServer.scala is using 3 AtomicBooleans (startupComplete, isShuttingDown, isStartingUp) as locks around the broker lifecycle. This strategy doesn’t appear to be thread safe, which I assu...
   Author: Grant Overby, 2015-03-26, 22:09
[expand - 18 more] - Re: Kafka 0.9 consumer API - Kafka - [mail # user]
...Rajiv,Those are good points. As for implementation we have developed a class inproducer that can be probably re-used for the consumer as well.org.apache.kafka.clients.producer.internals.Buff...
   Author: Guozhang Wang, 2015-03-26, 22:08
[expand - 37 more] - Re: Database Replication Question - Kafka - [mail # user]
...Hello Josh,We do not have a ticket open for idempotent producer as it is still in thediscussion process, but here is the wiki:https://cwiki.apache.org/confluence/display/KAFKA/Idempotent+Pro...
   Author: Guozhang Wang, 2015-03-26, 21:59
[expand - 11 more] - Re: Rebalance not happening even after increasing max retries causing conflict in ZK - Kafka - [mail # user]
...No, we don't normally see conflicts. We'll see endless attempts torebalance.-MikeOn Thu, Mar 26, 2015 at 5:15 PM, Mayuresh Gharat <[EMAIL PROTECTED] ...
   Author: Mike Axiak, 2015-03-26, 21:32
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NEW: Monitor These Apps!
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