Congratulations Onur !

On Mon, Nov 6, 2017 at 7:01 PM, Matthias J. Sax <matth...@confluent.io> wrote:
> Congrats!!!
>
>
> On 11/6/17 7:56 PM, Vahid S Hashemian wrote:
>> Congrats Onur!
>>
>> --Vahid
>>
>>
>>
>> From:   Ismael Juma <ism...@juma.me.uk>
>> To:     dev@kafka.apache.org
>> Cc:     "us...@kafka.apache.org" <us...@kafka.apache.org>
>> Date:   11/06/2017 10:13 AM
>> Subject:        Re: [ANNOUNCE] New committer: Onur Karaman
>> Sent by:        isma...@gmail.com
>>
>>
>>
>> Congratulations Onur!
>>
>> Ismael
>>
>> On Mon, Nov 6, 2017 at 5:24 PM, Jun Rao <j...@confluent.io> wrote:
>>
>>> Hi, everyone,
>>>
>>> The PMC of Apache Kafka is pleased to announce a new Kafka committer
>> Onur
>>> Karaman.
>>>
>>> Onur's most significant work is the improvement of Kafka controller,
>> which
>>> is the brain of a Kafka cluster. Over time, we have accumulated quite a
>> few
>>> correctness and performance issues in the controller. There have been
>>> attempts to fix controller issues in isolation, which would make the
>> code
>>> base more complicated without a clear path of solving all problems. Onur
>> is
>>> the one who took a holistic approach, by first documenting all known
>>> issues, writing down a new design, coming up with a plan to deliver the
>>> changes in phases and executing on it. At this point, Onur has completed
>>> the two most important phases: making the controller single threaded and
>>> changing the controller to use the async ZK api. The former fixed
>> multiple
>>> deadlocks and race conditions. The latter significantly improved the
>>> performance when there are many partitions. Experimental results show
>> that
>>> Onur's work reduced the controlled shutdown time by a factor of 100
>> times
>>> and the controller failover time by a factor of 3 times.
>>>
>>> Congratulations, Onur!
>>>
>>> Thanks,
>>>
>>> Jun (on behalf of the Apache Kafka PMC)
>>>
>>
>>
>>
>>
>>
>

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