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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/11/14 12:18:00 UTC
[jira] [Updated] (FLINK-14780) Avoid leaking instance of
DefaultScheduler before object is constructed
[ https://issues.apache.org/jira/browse/FLINK-14780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-14780:
-----------------------------------
Labels: pull-request-available (was: )
> Avoid leaking instance of DefaultScheduler before object is constructed
> -----------------------------------------------------------------------
>
> Key: FLINK-14780
> URL: https://issues.apache.org/jira/browse/FLINK-14780
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Affects Versions: 1.10.0
> Reporter: Gary Yao
> Assignee: Gary Yao
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.10.0
>
>
> An instance of {{DefaultScheduler}} may leak to a metric reporter thread before the instance of the object is fully constructed. This can lead to an NPE (see below.
> https://api.travis-ci.org/v3/job/611597698/log.txt
> {noformat}
> java.lang.NullPointerException
> at org.apache.flink.runtime.scheduler.DefaultScheduler.getNumberOfRestarts(DefaultScheduler.java:156)
> 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$ReporterTask.run(MetricRegistryImpl.java:436)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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