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From charly molter <charly.mol...@gmail.com>
Subject Re: 答复: 答复: [DISCUSS]KIP-223 - Add per-topic min lead and per-partition lead metrics to KafkaConsumer
Date Tue, 14 Nov 2017 11:57:11 GMT
Hi Jun, Hu,

I have KIP-225 open for adding tags to records-lag:
https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=74686649

I have a patch more or less ready so I could probably get the fix checked
in (after the vote) and you could build on top of it. Otherwise we could
merge both KIPs if you want but they do sound different to me.

Thanks!
Charly

On Tue, Nov 14, 2017 at 11:42 AM, Hu Xi <huxi_2b@hotmail.com> wrote:

> Jun,
>
>
> Let me double confirm with your comments:
>
> 1 remove partition-level records-lead-avg and records-lead-min since they
> both can be deduced by external monitoring system.
>
> 2 Tag partition-level records-lead with topic&partition info
>
>
> If they are the case you expect, do we need to do the same thing for those
> `lag` metrics? Seems partition-level records-lag metrics are not tagged
> with topic&partition information  which might deserve a bug.
>
>
> huxihx
>
>
> ________________________________
> 发件人: Jun Rao <jun@confluent.io>
> 发送时间: 2017年11月14日 12:44
> 收件人: dev@kafka.apache.org
> 主题: Re: 答复: [DISCUSS]KIP-223 - Add per-topic min lead and per-partition
> lead metrics to KafkaConsumer
>
> Hi, Hu,
>
> Currently, records-lag-max is an attribute for the mbean
> kafka.consumer:type=consumer-fetch-manager-metrics,client-
> id="{client-id}".
> So, it probably makes sense for records-lead-min to be an attribute under
> the same mbean.
>
> The partition level records-lead can probably be an attribute for the mbean
> kafka.consumer:type=consumer-fetch-manager-metrics,client-
> id="{client-id}",topic=topic1,partition=0,
> where topic and partition are the tags. This matches the topic level mbeans
> that we have in the consumer. I am not sure what the per partition level
> records-lead-min and records-lead-avg are. Are they the min/avg of the lead
> since the consumer is started? I am not sure we need those since an
> external monitoring system can always derive them from records-lead.
>
> Thanks,
>
> Jun
>
>
>
>
> On Mon, Nov 13, 2017 at 8:10 PM, Hu Xi <huxi_2b@hotmail.com> wrote:
>
> > Jun,
> >
> > Thanks for the feedback. Some things need to make sure. Currently, these
> > new-added metrics follow the exact naming convention with those 'lag'
> > counterparts, as shown below:
> >
> >
> > Consumer-level metric:
> >
> > records-lag-max ==> records-lead-min
> >
> >
> > Partition-level metrics:
> >
> > <topic>-<partitionId>.records-lag          ==> <topic>-<partitionId>.
> > records-lead
> >
> > <topic>-<partitionId>.records-lag-max ==> <topic>-<partitionId>.
> > records-lead-min
> >
> > <topic>-<partitionId>.records-lag-avg   ==> <topic>-<partitionId>.
> > records-lead-avg
> >
> >
> > Correct me if I am wrong, but what you mentioned `*records-lead-avg and
> > records-lead-min don't need the partition prefix since they are
> aggregates
> > across all partitions*` seemed to break the naming rule above. Do we
> > still have to keep the same rule with the "lag" metrics?
> >
> >
> > huxihx
> >
> >
> >
> >
> >
> > ------------------------------
> > *发件人:* Jun Rao <jun@confluent.io>
> > *发送时间:* 2017年11月14日 1:48
> > *收件人:* dev@kafka.apache.org
> > *主题:* Re: [DISCUSS]KIP-223 - Add per-topic min lead and per-partition
> > lead metrics to KafkaConsumer
> >
> > Hi, Hu,
> >
> > Thanks for the KIP. Looks good overall. Could you document the mbean name
> > for the new metrics? We probably want the name to be consistent with
> > records-max-lag as described in
> > http://kafka.apache.org/documentation/#monitoring. Also, it seems that
> [http://apache-kafka.org/images/apache-kafka.png]<http://kafka.apache.org/
> documentation/#monitoring>
>
> Apache Kafka<http://kafka.apache.org/documentation/#monitoring>
> kafka.apache.org
> 1.2 Use Cases. Here is a description of a few of the popular use cases for
> Apache Kafka®. For an overview of a number of these areas in action, see
> this blog post.
>
>
>
> > <http://kafka.apache.org/documentation/#monitoring>
> [http://apache-kafka.org/images/apache-kafka.png]<http://kafka.apache.org/
> documentation/#monitoring>
>
> Apache Kafka<http://kafka.apache.org/documentation/#monitoring>
> kafka.apache.org
> 1.2 Use Cases. Here is a description of a few of the popular use cases for
> Apache Kafka®. For an overview of a number of these areas in action, see
> this blog post.
>
>
>
> > Apache Kafka <http://kafka.apache.org/documentation/#monitoring>
> [http://apache-kafka.org/images/apache-kafka.png]<http://kafka.apache.org/
> documentation/#monitoring>
>
> Apache Kafka<http://kafka.apache.org/documentation/#monitoring>
> kafka.apache.org
> 1.2 Use Cases. Here is a description of a few of the popular use cases for
> Apache Kafka®. For an overview of a number of these areas in action, see
> this blog post.
>
>
>
> > kafka.apache.org
> > 1.2 Use Cases. Here is a description of a few of the popular use cases
> for
> > Apache Kafka®. For an overview of a number of these areas in action, see
> > this blog post.
> >
> >
> > records-lead-avg and records-lead-min don't need the partition prefix
> since
> > they are aggregates across all partitions. For records-lead, it seems
> that
> > it's better to add the topic partition as a tag, instead of as a prefix
> in
> > the metric name.
> >
> > Jun
> >
> >
> >
> >
> > On Thu, Nov 9, 2017 at 1:03 AM, Hu Xi <huxi_2b@hotmail.com> wrote:
> >
> > > Hi all,
> > >
> > >
> > > As per Jun Rao's suggestion, I opened up the KIP-223(
> > https://cwiki.apache.
> > > org/confluence/display/KAFKA/KIP-223+-+Add+per-topic+min+
> > > lead+and+per-partition+lead+metrics+to+KafkaConsumer) concerning
> adding
> > > new kinds of lag metrics for KafkaConsumer. Be free to leave your
> > comments
> > > here. Thanks in advance.
> > >
> > >
> >
>



-- 
Charly Molter

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