Yes, the leaders are currently speed evenly across five brokers. I also see the
FetchRequestPurgatory.PurgatorySize to be peak as high as ~7.2M and the
suddenly dropping to a couple hundred thousands.
Thanks
Zakee
> On Mar 13, 2015, at 5:27 PM, Joel Koshy <[email protected]> wrote:
>
> Can you verify that the leaders are evenly spread? and if necessary
> run a preferred leader election?
>
> On Fri, Mar 13, 2015 at 05:10:22PM -0700, Zakee wrote:
>> I have 35 topics spread with total 398 partitions (2 of them are supposed to
>> be very high volume and so allocated 28 partitions to them, others vary
>> between 5 to 14).
>>
>> Thanks
>> Zakee
>>
>>
>>
>>> On Mar 13, 2015, at 3:25 PM, Joel Koshy <[email protected]> wrote:
>>>
>>> I think what people have observed in the past is that increasing
>>> num-replica-fetcher-threads has diminishing returns fairly quickly.
>>> You may want to instead increase the number of partitions in the topic
>>> you are producing to. (How many do you have right now?)
>>>
>>> On Fri, Mar 13, 2015 at 02:48:17PM -0700, Zakee wrote:
>>>> Hi Mayuresh,
>>>>
>>>> I have currently set this property to 4 and I see from the logs that it
>>>> starts 12 threads on each broker. I will try increasing it further.
>>>>
>>>> Thanks
>>>> Zakee
>>>>
>>>>
>>>>
>>>>> On Mar 13, 2015, at 11:53 AM, Mayuresh Gharat
>>>>> <[email protected]> wrote:
>>>>>
>>>>> You might want to increase the number of Replica Fetcher threads by
>>>>> setting
>>>>> this property : *num.replica.fetchers*.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Mayuresh
>>>>>
>>>>> On Thu, Mar 12, 2015 at 10:39 PM, Zakee <[email protected]> wrote:
>>>>>
>>>>>> With the producer throughput as large as > 150MB/s to 5 brokers on a
>>>>>> continuous basis, I see a consistently high value for Replica Max Lag (in
>>>>>> millions). Is this normal or there is a way to tune so as to reduce
>>>>>> replica
>>>>>> MaxLag?
>>>>>> As per documentation, replica max lag (in messages) between follower and
>>>>>> leader replicas, should be less than replica.lag.max.messages (currently
>>>>>> set to 5000)
>>>>>>
>>>>>>
>>>>>> Thanks
>>>>>> Zakee
>>>>>>
>>>>>>
>>>>>>
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>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> -Regards,
>>>>> Mayuresh R. Gharat
>>>>> (862) 250-7125
>>>>> ____________________________________________________________
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