ignite-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Dmitriy Setrakyan <dsetrak...@apache.org>
Subject Re: Right MXBean for new metrics
Date Wed, 22 Nov 2017 02:34:13 GMT
Hi Alex,

I think the proper approach would be to have a separate MBean for cache
groups. It should show average metrics across all the caches in the group
and some additional metrics as well. Agree?

Also, I am not sure I understand what is "partition redundancy level" and
what that metric would show. Can you explain.

D.

On Tue, Nov 21, 2017 at 2:28 AM, Alex Plehanov <plehanov.alex@gmail.com>
wrote:

> Hello, Igniters!
>
>
>
> I would like to discuss the implementation of ticket IGNITE-6871.
>
>
>
> In our Ignite instance there are more than 1000 caches and about 10 cache
> groups. To minimize the probability of data loss we need to alert when a
> critical level of redundancy in cluster is reached. So, we need some
> metric, which will count a minimal partition redundancy level for a cache
> group.
>
>
>
> Now there are no MXBeans for cache groups. And since cache groups were
> introduced, some metrics from CacheMetricsMXBean actually show information
> about the cache group, but not about the cache.
>
>
>
> I can implement the new metric (minimal partition redundancy level for
> cache group) in CacheMetricsMXBean, the same way it was before. In such
> case we’ll whether need to monitor this metric for all caches or to get
> somehow information about cache to cache group relation and to monitor this
> metric for only one cache per cache group. But it’s not transparent to an
> administrator which cache groups are existing and which caches belong to
> which cache group.
>
>
>
> Alternatively, I can implement a new type of MXBean for cache groups and
> add a new metric to this MXBean. Maybe it will be useful later to add to
> this MXBean some other cache group related metrics, which now are
> implemented in CacheMetricsMXBean.
>
>
>
> So, should I extend existing CacheMetricsMXBean or create a new type of
> MXBeans for cache groups?
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message