Check the offset you're asking for, and check what offsets actually exist on your cluster. It sounds like they don't line up.
On Wed, Apr 15, 2015 at 2:10 PM, Victor L <vlyamt...@gmail.com> wrote: > I see the following error in consumer; > Unable to Receive Message:kafka server: The requested offset is outside the > range of offsets maintained by the server for the given topic/partition > > On Wed, Apr 15, 2015 at 2:09 PM, Victor L <vlyamt...@gmail.com> wrote: > > > I set it to 10ms and it did fix cpu consumption problem but i don't see > > any messages coming up in consumer queue > > > > On Wed, Apr 15, 2015 at 1:57 PM, Evan Huus <evan.h...@shopify.com> > wrote: > > > >> The field is a time.Duration (https://golang.org/pkg/time/#Duration) > and > >> it > >> is the maximum duration to buffer messages before triggering a flush to > >> the > >> broker. The default was 1 millisecond (this value does not even exist in > >> the most recent release). Setting it to higher values trades off latency > >> for efficiency, whatever your use case dictates. > >> > >> Evan > >> > >> On Wed, Apr 15, 2015 at 1:47 PM, Victor L <vlyamt...@gmail.com> wrote: > >> > >> > I inherited this code, it just set to 1000, what would be reasonable > >> time: > >> > 1000 * time.Millisecond? > >> > > >> > On Wed, Apr 15, 2015 at 1:41 PM, Evan Huus <evan.h...@shopify.com> > >> wrote: > >> > > >> > > On Wed, Apr 15, 2015 at 1:33 PM, Victor L <vlyamt...@gmail.com> > >> wrote: > >> > > > >> > > > Hi Evan, > >> > > > It's hardcoded: > >> > > > MaxBufferTime = 1000 > >> > > > > >> > > > >> > > Without any units this defaults to nanoseconds, which means your > >> timer is > >> > > spinning every microsecond. You probably mean 1000 * > time.Millisecond? > >> > > > >> > > > >> > > > MaxBufferedBytes = 1024 > >> > > > > >> > > > How's it versioned? Should i just download zip file from project > >> > github? > >> > > > > >> > > > >> > > By default go will use whatever version you originally checked out > >> with > >> > `go > >> > > get` or the like. You can use a properly versioned copy via > >> > > http://gopkg.in/Shopify/sarama.v1. > >> > > > >> > > > >> > > > On Wed, Apr 15, 2015 at 12:48 PM, Evan Huus < > evan.h...@shopify.com > >> > > >> > > > wrote: > >> > > > > >> > > > > Hi Victor, two points: > >> > > > > > >> > > > > - Based on the backtrace, you are using a very old version of > >> Sarama. > >> > > You > >> > > > > might have better luck using a more recent stable version. > >> > > > > - Are you setting `MaxBufferTime` in the configuration to 0 or a > >> very > >> > > > small > >> > > > > value? If so the loop will spin on that timer. Try making this > >> value > >> > > > > larger. > >> > > > > > >> > > > > Evan > >> > > > > > >> > > > > On Wed, Apr 15, 2015 at 12:35 PM, Victor L <vlyamt...@gmail.com > > > >> > > wrote: > >> > > > > > >> > > > > > I am using sarama "golang" kafka 1.8.1 client ( > >> > > > > > https://github.com/Shopify/sarama) to send messages to > message > >> > > queue > >> > > > > once > >> > > > > > in 3secs and this task drives cpu consumption to 130% on the > >> > quad-cpu > >> > > > > > blade; The number stays this high regardless of number of > >> > > > > > partitions/consumers.... According to results of profiling > with > >> > > > 'pprof', > >> > > > > > most of the cycles are spent in producer.go/NewBrokerProducer; > >> > > > > > Total: 47297 samples > >> > > > > > 5947 12.6% 12.6% 15013 31.7% selectgo > >> > > > > > 3617 7.6% 20.2% 3617 7.6% runtime.xchg > >> > > > > > 2819 6.0% 26.2% 28506 60.3% > >> > > > > github.com/Shopify/sarama.func·008 > <http://github.com/Shopify/sarama.func%C2%B7008> > >> <http://github.com/Shopify/sarama.func%C2%B7008> > >> > <http://github.com/Shopify/sarama.func%C2%B7008> > >> > > <http://github.com/Shopify/sarama.func%C2%B7008> > >> > > > <http://github.com/Shopify/sarama.func%C2%B7008> > >> > > > > <http://github.com/Shopify/sarama.func%C2%B7008> > >> > > > > > <http://github.com/Shopify/sarama.func%C2%B7008> > >> > > > > > <http://github.com/Shopify/sarama.func%C2%B7008> > >> > > > > > > >> > > > ---------------------------------------------------------------------- > >> > > > > > NewBrokerProducer > >> > > > > > ----------------------------------------------------------- > >> > > > > > 229: go func() { > >> > > > > > . . 230: timer := > >> > > > > time.NewTimer(p.config.MaxBufferTime) > >> > > > > > . . 231: var shutdownRequired bool > >> > > > > > . . 232: wg.Done() > >> > > > > > . . 233: for { > >> > > > > > 208 17598 234: select { > >> > > > > > 153 749 235: case <-bp.flushNow: > >> > > > > > . . 236: if shutdownRequired = > >> > > bp.flush(p); > >> > > > > > shutdownRequired { > >> > > > > > . . 237: goto shutdown > >> > > > > > . . 238: } > >> > > > > > 2230 3144 239: case <-timer.C: > >> > > > > > 144 3606 240: if shutdownRequired = > >> > > > > > bp.flushIfAnyMessages(p); shutdownRequired { > >> > > > > > . . 241: goto shutdown > >> > > > > > > >> > > > > > > >> > > > > > wonder if there's some known issue with this method or if > anyone > >> > > > already > >> > > > > > seen it before... > >> > > > > > Thank you, > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > > > > >
