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Posted to server-dev@james.apache.org by "Benoit Tellier (Jira)" <se...@james.apache.org> on 2020/12/25 03:20:00 UTC
[jira] [Commented] (JAMES-3117) Periodically log HealthChecks
[ https://issues.apache.org/jira/browse/JAMES-3117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17254717#comment-17254717 ]
Benoit Tellier commented on JAMES-3117:
---------------------------------------
https://github.com/linagora/james-project/pull/4166
If some checks exceeds the reporting period, we end up overrunning
intermediate buffers.
{code:java}
reactor.core.Exceptions$ErrorCallbackNotImplemented: reactor.core.Exceptions$OverflowException: Could not emit tick 6784 due to lack of requests (interval doesn't support small downstream requests that replenish slower than the ticks)
Caused by: reactor.core.Exceptions$OverflowException: Could not emit tick 6784 due to lack of requests (interval doesn't support small downstream requests that replenish slower than the ticks)
at reactor.core.Exceptions.failWithOverflow(Exceptions.java:234)
at reactor.core.publisher.FluxInterval$IntervalRunnable.run(FluxInterval.java:130)
at reactor.core.scheduler.PeriodicWorkerTask.call(PeriodicWorkerTask.java:59)
at reactor.core.scheduler.PeriodicWorkerTask.run(PeriodicWorkerTask.java:73)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
{code}
It looks safe to consider a check exceeding the reporting period
as failed, thus preventing the buffer overrun.
> Periodically log HealthChecks
> -----------------------------
>
> Key: JAMES-3117
> URL: https://issues.apache.org/jira/browse/JAMES-3117
> Project: James Server
> Issue Type: Improvement
> Reporter: René Cordier
> Priority: Major
>
> Heathy => nothing
> Degraded => WARN
> Unhealthy -> ERROR
> * Check every minute, log directly upon status change
> * Otherwise re-log current status every 30 minutes
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