Query on kafka topic metadata

[Pavan Chenduluru <ch...@gmail.com>]

Hi,

I am new to kafka and I have a doubt.

How to read specified topic statistics from kafka server?

I want to read below parameters about existing topic from kafka.

1) How many activeMessages
2) How many activeSubscriptions
3) How many totalMessages
4) How many totalSubscriptions
5) How mnay deliveryFaults
6) How many pendingDelivery

Pls do the needful.

Thanks & Regards,
Pavan

Re: Query on kafka topic metadata

[Guozhang Wang <wa...@gmail.com>]

Hi Pavan,

1) you cannot read the current number of messages for a topic, but you can
read the number of bytes for a topic in Kafka metrics.

2) you cannot read the current number of subscribers directly. However you
can read from ZK and parse the results to get the subscriber counts.

3) / 4) I am not sure what you mean by "active" messages and subscription.

5) / 6) You can find this in the Kafka metrics.

You can take a look at the list of metrics here:
http://kafka.apache.org/documentation.html#monitoring

Guozhang


On Fri, Jun 5, 2015 at 11:02 AM, Pavan Chenduluru <ch...@gmail.com>
wrote:

> Hi,
>
> I am new to kafka and I have a doubt.
>
> How to read specified topic statistics from kafka server?
>
> I want to read below parameters about existing topic from kafka.
>
> 1) How many activeMessages
> 2) How many activeSubscriptions
> 3) How many totalMessages
> 4) How many totalSubscriptions
> 5) How mnay deliveryFaults
> 6) How many pendingDelivery
>
> Pls do the needful.
>
> Thanks & Regards,
> Pavan
>



-- 
-- Guozhang