[IGNITE-12769] MetricRegistryMBean and OpenCensusExporterSpi have memory leak

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.1
• Labels: IEP-35
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Nikolay Izhikov
• Reporter: Andrey N. Gura
• Created: 10/Mar/20 17:19
• Updated: 25/Mar/20 06:41
• Resolved: 25/Mar/20 06:39

Description

MetricRegistryMBean and OpenCensusExporterSpi have memory leak.

To the following maps values add but never remove (i.e. on remove corresponding histogram or on change histogram buckets layout):

• MetricRegistryMBean.histogramNames
• OpenCensusMetricExporterSpi.histogramNames

Issue Links

• fixes: IGNITE-12767 MetricRegistryMBean is not thread safe
• is caused by: IGNITE-12044 [IEP-35] JmxExporterSpi displays histogram values incorrectly
• links to: GitHub Pull Request #7549