Add lastCheckpointStarted metric

[Ilya Kazakov]

Hello, the community!

Sometimes one needs to understand how long ago did the last checkpoint
start or end, how long was it, etc. There is lastCheckpointDuration already
- let’s add lastCheckpointStarted timestamp. From these two metrics, the
user can also figure out started + duration = ended and now - ended = time
without cp.

I have already created the issue:
https://issues.apache.org/jira/browse/IGNITE-13591

I suppose add and implement in DataStorageMetrics interface:

public long getLastCheckpointStarted();

----------------------
Ilya Kazakov

[agura]

Hi, Ilya.

I've left a comment to the JIRA issue. Please, look at it.

On Tue, Oct 20, 2020 at 8:39 AM Ilya Kazakov <[hidden email]> wrote:

>
> Hello, the community!
>
> Sometimes one needs to understand how long ago did the last checkpoint
> start or end, how long was it, etc. There is lastCheckpointDuration already
> - let’s add lastCheckpointStarted timestamp. From these two metrics, the
> user can also figure out started + duration = ended and now - ended = time
> without cp.
>
> I have already created the issue:
> https://issues.apache.org/jira/browse/IGNITE-13591
>
> I suppose add and implement in DataStorageMetrics interface:
>
> public long getLastCheckpointStarted();
>
> ----------------------
> Ilya Kazakov

[Ilya Kazakov]

Hi, Andrey!

Thanks, for your help! I will apply it right now.

------------------------------
Ilya Kazakov

пт, 30 окт. 2020 г. в 03:47, Andrey Gura <[hidden email]>:

> Hi, Ilya.
>
> I've left a comment to the JIRA issue. Please, look at it.
>
> On Tue, Oct 20, 2020 at 8:39 AM Ilya Kazakov <[hidden email]>
> wrote:
> >
> > Hello, the community!
> >
> > Sometimes one needs to understand how long ago did the last checkpoint
> > start or end, how long was it, etc. There is lastCheckpointDuration
> already
> > - let’s add lastCheckpointStarted timestamp. From these two metrics, the
> > user can also figure out started + duration = ended and now - ended =
> time
> > without cp.
> >
> > I have already created the issue:
> > https://issues.apache.org/jira/browse/IGNITE-13591
> >
> > I suppose add and implement in DataStorageMetrics interface:
> >
> > public long getLastCheckpointStarted();
> >
> > ----------------------
> > Ilya Kazakov
>