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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/05/30 10:17:00 UTC
[jira] [Updated] (FLINK-12642) OutputBufferPoolUsageGauge can fail
with NPE
[ https://issues.apache.org/jira/browse/FLINK-12642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-12642:
-----------------------------------
Labels: pull-request-available (was: )
> OutputBufferPoolUsageGauge can fail with NPE
> --------------------------------------------
>
> Key: FLINK-12642
> URL: https://issues.apache.org/jira/browse/FLINK-12642
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics, Runtime / Network
> Affects Versions: 1.9.0
> Reporter: Chesnay Schepler
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.9.0
>
>
> The result partition metrics are initialized before {{ResultPartitiion#setup}} was called. If a reporter tries to access a {{OutputBufferPoolUsageGauge}} in between it will fail with an NPE since the bufferpool of the partition is still null.
> {code}
> 2019-05-27 14:49:47,031 WARN org.apache.flink.runtime.metrics.MetricRegistryImpl - Error while reporting metrics
> java.lang.NullPointerException
> at org.apache.flink.runtime.io.network.metrics.OutputBufferPoolUsageGauge.getValue(OutputBufferPoolUsageGauge.java:41)
> at org.apache.flink.runtime.io.network.metrics.OutputBufferPoolUsageGauge.getValue(OutputBufferPoolUsageGauge.java:27)
> at org.apache.flink.metrics.slf4j.Slf4jReporter.tryReport(Slf4jReporter.java:114)
> at org.apache.flink.metrics.slf4j.Slf4jReporter.report(Slf4jReporter.java:80)
> at org.apache.flink.runtime.metrics.MetricRegistryImpl$ReporterTask.run(MetricRegistryImpl.java:436)
> at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
> at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
> at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:300)
> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
> at java.base/java.lang.Thread.run(Thread.java:844)
> {code}
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