yes, it's "return offsets[0]".whichTime is a long num, is message offset i 
cached,and the kafka keep message 7days.

Thanks,
Lax


> Date: Sun, 24 Aug 2014 19:58:35 -0700
> Subject: Re: read message use SimpleConsumer,can not start with assign offset
> From: jun...@gmail.com
> To: users@kafka.apache.org
> 
> Is line 64 "return offsets[0]"? What value did you pass into whichTime?
> 
> Thanks,
> 
> Jun
> 
> 
> On Sun, Aug 24, 2014 at 7:24 PM, chenlax <lax...@hotmail.com> wrote:
> 
> > the method getLastOffset as follow:
> >
> > public static long getLastOffset(SimpleConsumer consumer, String topic,
> > int partition,long whichTime, String clientName)
> >     {
> >         long l_ret = kafka.api.OffsetRequest.EarliestTime();
> >         System.out.println("whichTime = " + whichTime);
> >         TopicAndPartition topicAndPartition = new TopicAndPartition(topic,
> > partition);
> >         Map<TopicAndPartition, PartitionOffsetRequestInfo> requestInfo =
> > new HashMap<TopicAndPartition, PartitionOffsetRequestInfo>();
> >
> >         requestInfo.put(topicAndPartition, new
> > PartitionOffsetRequestInfo(whichTime, 1));
> >         kafka.javaapi.OffsetRequest request = new
> > kafka.javaapi.OffsetRequest(requestInfo,
> > kafka.api.OffsetRequest.CurrentVersion(),clientName);
> >         OffsetResponse response = consumer.getOffsetsBefore(request);
> >         if (response.hasError()) {
> >             System.out.println("Error fetching data Offset Data the
> > Broker. Reason: " + response.errorCode(topic, partition) + " | " +
> > response.toString() );
> >             return 0;
> >         }
> >         long[] offsets = response.offsets(topic, partition);
> >         return offsets[0];
> >     }
> >
> > Thanks,
> > Lax
> >
> >
> > > Date: Fri, 22 Aug 2014 21:27:58 -0700
> > > Subject: Re: read message use SimpleConsumer,can not start with assign
> > offset
> > > From: jun...@gmail.com
> > > To: users@kafka.apache.org
> > >
> > > What's code in line 164 of SimpleConsumerClient.getLastOffset()?
> > >
> > > Thanks,
> > >
> > > Jun
> > >
> > >
> > > On Fri, Aug 22, 2014 at 7:36 AM, chenlax <lax...@hotmail.com> wrote:
> > >
> > > > kafka version is 0.8.0, the code as
> > > >
> > https://cwiki.apache.org/confluence/display/KAFKA/0.8.0+SimpleConsumer+Example
> > > >
> > > > when i assign a offset ,it will throw
> > > > java.lang.ArrayIndexOutOfBoundsException: 0
> > > >
> > > > java.lang.ArrayIndexOutOfBoundsException: 0
> > > >         at
> > > >
> > com.chen.test.consumer.SimpleConsumerClient.getLastOffset(SimpleConsumerClient.java:164)
> > > >         at
> > > >
> > com.chen.test.consumer.SimpleConsumerClient.run(SimpleConsumerClient.java:80)
> > > >         at
> > > >
> > com.chen.test.consumer.SimpleConsumerClient.main(SimpleConsumerClient.java:48)
> > > > ##EarliestTime : -2 || -1 #### The Start Offset : -2
> > > > Error fetching data from the Broker:10.209.22.206 Reason: 1
> > > >
> > > > how can is get the message which is assign offset?
> > > >
> > > > Thanks,
> > > > Lax
> > > >
> >
> >
                                          

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