Ok, I will rename the metrics.
2017-11-24 22:55 GMT+03:00 Dmitriy Setrakyan :
> Got it, but I do not like the name of the metric, I think it is confusing.
>
> I would provide the following metrics:
> - minNumberOfCopies()
> - maxNumberOfCopies()
>
> Will this work for you?
>
> D.
>
> On Thu, Nov
Got it, but I do not like the name of the metric, I think it is confusing.
I would provide the following metrics:
- minNumberOfCopies()
- maxNumberOfCopies()
Will this work for you?
D.
On Thu, Nov 23, 2017 at 10:38 PM, Alex Plehanov
wrote:
> We have target redundancy level - 4. If, for some r
We have target redundancy level - 4. If, for some reason, minimal
redundancy level reached the value of 1, then each next node left the
cluster may cause data loss or service unavailability.
2017-11-24 1:31 GMT+03:00 Dmitriy Setrakyan :
> Alex,
>
> I am really confused. What do you need to know t
Alex,
I am really confused. What do you need to know the "minimal partition
redundancy" for? What will it give you?
D.
On Thu, Nov 23, 2017 at 2:25 PM, Alex Plehanov
wrote:
> Example was in my previous letters: if we have in our cluster for cache
> group one partition with 2 copies (1 primary
Example was in my previous letters: if we have in our cluster for cache
group one partition with 2 copies (1 primary and 1 backup) and other
partitions with 4 copies (1 primary and 3 backups), then minimal partition
redundancy level for this cache group will be 2.
Maybe code will be more clear tha
I think you are talking about the case when cluster temporarily gets into
unbalanced state and needs to rebalance. However, I am still not sure what
this metric would show. Can you provide an example?
D.
On Wed, Nov 22, 2017 at 2:10 PM, Alex Plehanov
wrote:
> It's not about caches.
> Each parti
It's not about caches.
Each partition has certain amount of copies. Amount of copies may differ
for different partitions of one cache group.
This configuration possible:
1) With custom affinity function
2) When nodes left the cluster, till rebalancing is not finished
2017-11-23 0:18 GMT+03:00 D
On Wed, Nov 22, 2017 at 12:39 PM, Alex Plehanov
wrote:
> Hello Dmitriy,
>
> I agree.
>
> By "minimal partition redundancy level for cache group" I mean minimal
> number of partition copies among all partitions of this cache group.
> For example, if we have in our cluster for cache group one parti
Hello Dmitriy,
I agree.
By "minimal partition redundancy level for cache group" I mean minimal
number of partition copies among all partitions of this cache group.
For example, if we have in our cluster for cache group one partition with 2
copies (1 primary and 1 backup) and other partitions with
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 s
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