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https://issues.apache.org/jira/browse/HADOOP-15657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575883#comment-16575883
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Sushil Ks edited comment on HADOOP-15657 at 8/16/18 3:36 PM:
-------------------------------------------------------------
This patch is trying to register mutableQuantiles through reflection similar to
other MutableMetric, created sample MutableQuantile metric as follows and
tested locally with JVisualVM viewer
{code:java}
public class TestMutableQuantilesMetric {
@Metric(about = "async PUT entities latency", valueName = "latency")
private static MutableQuantiles foobarAsyncLatency;
@Test
public void testMetrics() throws InterruptedException {
DefaultMetricsSystem.initialize("testService").register("foo", "bar", new
TestMutableQuantilesMetric());
Random random = new Random();
ScheduledExecutorService executorService = Executors
.newSingleThreadScheduledExecutor();
executorService.scheduleAtFixedRate(() ->
foobarAsyncLatency.add(random.nextInt(100)), 0, 1, TimeUnit.SECONDS);
executorService.awaitTermination(10, TimeUnit.MINUTES);
}
}
{code}
was (Author: sushil-k-s):
This patch is trying to register mutableQuantiles through reflection similar to
other MutableMetric, created sample MutableQuantile metric as follows and
tested locally with JVisualVM viewer
> Registering MutableQuantiles via Metric annotation
> --------------------------------------------------
>
> Key: HADOOP-15657
> URL: https://issues.apache.org/jira/browse/HADOOP-15657
> Project: Hadoop Common
> Issue Type: Improvement
> Components: metrics
> Reporter: Sushil Ks
> Priority: Major
> Attachments: HADOOP-15657.001.patch
>
>
> Currently when creating new metrics we use @Metric annotation for registering
> the MutableMetric i.e
> {code:java}
> @Metric
> private MutableInt foobarMetricCount
> {code}
> However, there's no support for registering MutableQuantiles via Metric
> annotation, hence creating this Jira to register MutableQuantiles via Metric
> annotation.
> Example:
>
> {code:java}
> @Metric(about = "async PUT entities latency", valueName = "latency", interval
> = 10)
> private MutableQuantiles foobarAsyncLatency;
>
> {code}
>
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