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https://issues.apache.org/jira/browse/FLINK-38703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18050067#comment-18050067
]
Matthias Pohl commented on FLINK-38703:
---------------------------------------
master:
*
[452479b6368030549ba92218b07ebd50ff360ddc|https://github.com/apache/flink/commit/452479b6368030549ba92218b07ebd50ff360ddc]
> ConcurrentModificationException in FineGrainedResourceManager during
> reporting metrics
> --------------------------------------------------------------------------------------
>
> Key: FLINK-38703
> URL: https://issues.apache.org/jira/browse/FLINK-38703
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.19.0, 1.20.3, 2.2.0, 2.1.1
> Reporter: Zdenek Tison
> Assignee: Zdenek Tison
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.3.0
>
>
> {code:java}
> java.util.ConcurrentModificationException
> at
> java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1626)
> at
> java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
> at
> java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
> at
> java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
> at
> java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at java.base/java.util.stream.IntPipeline.reduce(IntPipeline.java:491)
> at java.base/java.util.stream.IntPipeline.sum(IntPipeline.java:449)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedTaskManagerTracker.getNumberFreeSlots(FineGrainedTaskManagerTracker.java:336)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.getNumberFreeSlots(FineGrainedSlotManager.java:774)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager.lambda$registerSlotManagerMetrics$1(FineGrainedSlotManager.java:238)
> at
> io.confluent.flink.common.metrics.OpenTelemetryMetricAdapter.convertGauge(OpenTelemetryMetricAdapter.java:94)
> at
> io.confluent.flink.common.metrics.OpenTelemetryMetricReporter.collectAllMetrics(OpenTelemetryMetricReporter.java:223)
> at
> io.confluent.flink.common.metrics.OpenTelemetryMetricReporter.report(OpenTelemetryMetricReporter.java:261)
> at
> org.apache.flink.runtime.metrics.MetricRegistryImpl$ReporterTask.run(MetricRegistryImpl.java:622)
> at
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
> at
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:829){code}
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