Hi Mathias, Yes they are. But we are talking about a single box running Zoo Keeper, Kafka server and the Consumer/Producer.
Regards, Kishore On Fri, May 17, 2013 at 12:53 PM, Mathias Herberts < mathias.herbe...@gmail.com> wrote: > Just for the sake of it, are your clocks synchronized using NTP? > > On Fri, May 17, 2013 at 8:28 AM, Kishore V. Kopalle > <kish...@greenmedsoft.com> wrote: > > Hi Francis/Stone, > > > > I have modified log.default.flush.interval.ms to have a value of 1 in > > config/server.properties file. The time did not come down as can be seen > > from the following output: > > > > Message received at 2013-05-17 11:54:02.973: Message produced at > 2013-05-17 > > 11:54:01.444: Message_1 > > Message received at 2013-05-17 11:54:02.974: Message produced at > 2013-05-17 > > 11:54:01.536: Message_2 > > Message received at 2013-05-17 11:54:02.974: Message produced at > 2013-05-17 > > 11:54:01.537: Message_3 > > and so on... > > > > Regards, > > Kishore > > > > On Fri, May 17, 2013 at 11:49 AM, Francis Dallaire < > > francis.dalla...@ubisoft.com> wrote: > > > >> +1 ... very good suggestion. > >> > >> > >> Sent from Samsung Mobile > >> > >> > >> > >> -------- Original message -------- > >> From: Stone <stones....@gmail.com> > >> Date: 05-17-2013 2:16 AM (GMT-05:00) > >> To: users@kafka.apache.org > >> Subject: Re: Kafka performance > >> > >> > >> Hi Kishore, > >> > >> Since a message is only exposed to the consumers after it is flushed. > Maybe > >> you can try lower log.default.flush.interval.ms which controls the > maximum > >> time that a message in any topic is kept in memory before flushed to > disk ( > >> by default it's 3000ms ) > >> > >> ref - http://kafka.apache.org/07/configuration.html > >> > >> Best Regards, > >> Stone > >> > >> > >> On Fri, May 17, 2013 at 12:46 PM, Kishore Kopalle <kkopa...@gmail.com > >> >wrote: > >> > >> > Hello All, > >> > > >> > I am evaluating Kafka for use in a real time financial product. I am > >> tying > >> > to calculate the time it takes for a message to be fetched by the > >> consumer > >> > after it has been sent by a producer. I am finding that this takes a > long > >> > time of between 900-1200 ms per message on Windows 7 single core > >> processor. > >> > Is this the expected result? This seems to be very slow. All my > configs > >> are > >> > default except for the following properties being put: > >> > props.put("zk.sessiontimeout.ms", "400"); > >> > props.put("zk.synctime.ms", "200"); > >> > props.put("autocommit.interval.ms", "1000"); > >> > > >> > Am I missing any configuration steps for server/producer/consumer? > >> > > >> > Thanks in advance for answering, > >> > Kishore > >> > > >> >
