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Re: big cpu jump on producer in face of broker outage - Kafka - [mail # user]
...This is probably due to KAFKA-1642, which is fixed in 0.8.2.0. Could youtry that version or 0.8.2.1 which is being voted now.Thanks,JunOn Thu, Feb 19, 2015 at 10:42 AM, Steven Wu  wrote...
   Author: Jun Rao, 2015-02-19, 19:54
[VOTE] 0.8.2.1 Candidate 1 - Kafka - [mail # dev]
...This is the first candidate for release of Apache Kafka 0.8.2.1. Thisonly fixes one critical issue (KAFKA-1952) in 0.8.2.0.Release Notes for the 0.8.2.1 releasehttps://people.apache.org/~jun...
   Author: Jun Rao, 2015-02-19, 02:57
[expand - 2 more] - Re: Hold off on 0.8.2 upgrades - Kafka - [mail # user]
...Yes, that makes sense. I will try to roll out 0.8.2.1 for vote later today.Thanks,JunOn Wed, Feb 18, 2015 at 4:15 PM, Jay Kreps  wrote: ...
   Author: Jun Rao, 2015-02-19, 01:13
[expand - 6 more] - Re: Increased CPU usage with 0.8.2-beta - Kafka - [mail # user]
...Solon, Mathias,Thanks for testing this out. I just uploaded a slightly modified patch inhttps://issues.apache.org/jira/browse/KAFKA-1952. The new patch may notimprove the latency and CPU usa...
   Author: Jun Rao, 2015-02-15, 23:39
[KAFKA-1697] remove code related to ack>1 on the broker - Kafka - [issue]
...We removed the ack>1 support from the producer client in kafka-1555. We can completely remove the code in the broker that supports ack>1.Also, we probably want to make NotEnoughReplica...
http://issues.apache.org/jira/browse/KAFKA-1697    Author: Jun Rao, 2015-02-13, 21:09
[KAFKA-1797] add the serializer/deserializer api to the new java client - Kafka - [issue]
...Currently, the new java clients take a byte array for both the key and the value. While this api is simple, it pushes the serialization/deserialization logic into the application. This makes...
http://issues.apache.org/jira/browse/KAFKA-1797    Author: Jun Rao, 2015-02-13, 00:02
[KAFKA-1711] WARN Property topic is not valid when running console producer - Kafka - [issue]
...bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test [2014-10-17 09:54:23,984] WARN Property topic is not valid (kafka.utils.VerifiableProperties)It would be good ...
http://issues.apache.org/jira/browse/KAFKA-1711    Author: Jun Rao, 2015-02-12, 21:16
[expand - 2 more] - Re: [DISCUSSION] KIP-2: Refactor Brokers to Allow Multiple Endpoints - Kafka - [mail # dev]
...For rolling downgrading of the intra-cluster protocol, we mostly just needto reverse the steps. If none of the brokers have set wire.protocol.versionto the newer version, downgrading can be ...
   Author: Jun Rao, 2015-02-12, 20:25
[KAFKA-1377] transient unit test failure in LogOffsetTest - Kafka - [issue]
...Saw the following transient unit test failure.kafka.server.LogOffsetTest > testGetOffsetsBeforeEarliestTime FAILED    junit.framework.AssertionFailedError: expected:<Lis...
http://issues.apache.org/jira/browse/KAFKA-1377    Author: Jun Rao, 2015-02-11, 08:41
Re: Kafka producer perf script throw java.io.IOException - Kafka - [mail # user]
...The new producer uses a different built-in metrics package. Currently, itonly supports a jmx reporter for the metrics. So you will have to get themetrics from jmx.We can add the csv reporter...
   Author: Jun Rao, 2015-02-10, 02:39
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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