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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