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https://issues.apache.org/jira/browse/IGNITE-17895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17617561#comment-17617561
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Ignite TC Bot commented on IGNITE-17895:
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{panel:title=Branch: [pull/10313/head] Base: [master] : No blockers
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
{panel:title=Branch: [pull/10313/head] Base: [master] : New Tests
(1)|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}
{color:#00008b}Basic 4{color} [[tests
1|https://ci2.ignite.apache.org/viewLog.html?buildId=6817072]]
* {color:#013220}IgniteBasicTestSuite2:
PeriodicHistogramMetricImplTest.testCurrentTimeDecreasing - PASSED{color}
{panel}
[TeamCity *--> Run :: All*
Results|https://ci2.ignite.apache.org/viewLog.html?buildId=6817179&buildTypeId=IgniteTests24Java8_RunAll]
> Assertion on histogram update if currentTimeMillis decreases
> ------------------------------------------------------------
>
> Key: IGNITE-17895
> URL: https://issues.apache.org/jira/browse/IGNITE-17895
> Project: Ignite
> Issue Type: Bug
> Reporter: Aleksey Plekhanov
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: ise
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Histogram metric classes (\{{HistogramMetricImpl}},
> \{{PeriodicHistogramMetricImpl}}) assume that timestamp is always increasing,
> but in some cases method {{U.currentTimeMillis()}} can return decreasing
> values (for example, if time was set manually or on NTP sync). In these cases
> assertion can be thrown on histogram update:
> {noformat}
> java.lang.AssertionError: null
> at
> org.apache.ignite.internal.processors.metric.impl.HistogramMetricImpl.value(HistogramMetricImpl.java:61)
> ~[classes/:?]
> at
> org.apache.ignite.internal.util.StripedExecutor$Stripe.body(StripedExecutor.java:643)
> [classes/:?]
> at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:125)
> [classes/:?]
> at java.lang.Thread.run(Thread.java:750) [?:1.8.0_322]{noformat}
> We should fix {{PeriodicHistogramMetricImpl#add}} and
> {{HistogramMetricImpl#value}} methods to work correctly with decreasing
> timestamps.
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