Counter for last 60 minutes only

[gg]

I want to use the counter metrics in my code but I would like to only store and display the counts for last 60 minutes only. Is it possible to do this using the Counter metric or some other metric?

Thanks,

gg

[Ben Tatham]

Definitely not with Counter - that is just a continuous counter, with no record of times.  You would have to use a Reservoir of some sort (like in a Histogram), which I suspect would be way too much memory usage to get a full hour of counts, assuming your count gets ticked a lot.

[Marshall Pierce]

If you can live with 1-minute granularity, just create 60 LongAdders and use a different one each minute (zeroing and re-using as appropriate). Expose the sum as a Gauge<Long>.

> --
> You received this message because you are subscribed to the Google Groups "metrics-user" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to metrics-user...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

[Vladimir Bukhtoyarov]

Try to use SmoothlyDecayingRollingCounter. In general it works as described by Marshall Pierce, but do zeroing of obsolete chunks a little bit better(smoothly).

<dependency>
    <groupId>com.github.metrics-core-addons</groupId>
    <artifactId>metrics-core-hdr</artifactId>
    <version>1.4.0</version>
</dependency>

// constructs the counter which divided by 10 chunks with 60 seconds time window.
WindowCounter counter = new SmoothlyDecayingRollingCounter(Duration.ofSeconds(60), 10);
registry.register("my-counter", new MetricsCounter(counter));

// ...
counter.add(42);

среда, 25 мая 2016 г., 0:15:04 UTC+3 пользователь gg написал: