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From Alain RODRIGUEZ <arodr...@gmail.com>
Subject Re: Metrics matrix: migrate 2.1.x metrics to 2.2.x+
Date Mon, 01 Oct 2018 09:21:24 GMT
Hello Carl,

Here is a message I sent to my team a few months ago. I hope this will be
helpful to you and more people around :). It might not be exhaustive and we
were moving from C*2.1 to C*3+ in this case, thus skipping C*2.2, but C*2.2
is similar to C*3.0 if I remember correctly in terms of metrics. Here it is
for what it's worth:

Quite a few things changed between metric reporter in C* 2.1 and C*3.0.
- ColumnFamily --> Table
- XXpercentile --> pXX
- 1MinuteRate -->  m1_rate
- metric name before KS and Table names and some other changes of this kind.
- ^ aggregations / aliases indexes changed because of this (using graphite
for example) ^
- ‘.value’ is not appended in the metric name anymore for gauges, nothing
instead.

For example (graphite):

From
aliasByNode(averageSeriesWithWildcards(cassandra.$env.$dc.$host.org.apache.cassandra.metrics.ColumnFamily.$ks.$table.ReadLatency.95percentile,
2, 3), 1, 7, 8, 9)

to
aliasByNode(averageSeriesWithWildcards(cassandra.$env.$dc.$host.org.apache.cassandra.metrics.Table.ReadLatency.$ks.$table.p95,
2, 3), 1, 8, 9, 10)

C*heers,
-----------------------
Alain Rodriguez - @arodream - alain@thelastpickle.com
France / Spain

The Last Pickle - Apache Cassandra Consulting
http://www.thelastpickle.com

Le ven. 28 sept. 2018 à 20:38, Carl Mueller
<carl.mueller@smartthings.com.invalid> a écrit :

> VERY NICE! Thank you very much
>
> On Fri, Sep 28, 2018 at 1:32 PM Lyuben Todorov <
> lyuben.todorov@instaclustr.com> wrote:
>
>> Nothing as fancy as a matrix but a list of what JMX term can see.
>> Link to the online diff here: https://www.diffchecker.com/G9FE9swS
>>
>> /lyubent
>>
>> On Fri, 28 Sep 2018 at 19:04, Carl Mueller
>> <carl.mueller@smartthings.com.invalid> wrote:
>>
>>> It's my understanding that metrics got heavily re-namespaced in JMX for
>>> 2.2 from 2.1
>>>
>>> Did anyone ever make a migration matrix/guide for conversion of old
>>> metrics to new metrics?
>>>
>>>
>>>

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