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https://issues.apache.org/jira/browse/IMPALA-11644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang resolved IMPALA-11644.
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Fix Version/s: Impala 4.2.0
Resolution: Fixed
> updateLatestEventId should handle cases of empty events
> -------------------------------------------------------
>
> Key: IMPALA-11644
> URL: https://issues.apache.org/jira/browse/IMPALA-11644
> Project: IMPALA
> Issue Type: Bug
> Components: Catalog
> Affects Versions: Impala 4.2.0
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Major
> Fix For: Impala 4.2.0
>
>
> IMPALA-11490 adds a catalog metrics of latest event id in HMS. The retention
> duration of notification events is 24 hours by default. If they are cleaned
> up and there are no more events, the thread for updating latest event id will
> encounter the following exception:
> {noformat}
> E1009 09:29:13.774916 11395 MetastoreEventsProcessor.java:898] Unable to
> update current notification event id. Last value: -1
> Java exception follows:
> java.util.NoSuchElementException
> at java.util.ArrayList$Itr.next(ArrayList.java:864)
> at
> org.apache.impala.catalog.events.MetastoreEventsProcessor.updateLatestEventId(MetastoreEventsProcessor.java:891)
> at
> java.util.concurrent.Executors$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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