[hibernate-dev] Still an issue with Agroal when closing the pool

[Guillaume Smet]

Hello Luis,

Any chance you could take a look at this one?

I just got it again on my laptop and it happened quite frequently on our CI
lately.

AFAICS, it's always failing in the setting isolation test but it can be
different test methods. Just had it for
AgroalTransactionIsolationConfigTest > testSettingIsolationAsNumericString
this time.

-- 
Guillaume

On Sat, Jan 5, 2019 at 10:40 PM Guillaume Smet <guillaume.smet at gmail.com>
wrote:

> Hi Luis,
>
> We talked at some point about a potential issue in Agroal, you said 1.3
> should have all the known issues solved but apparently, there is still one
> as we have transient test failures on ORM from time to time.
>
> A good example is the following one:
>
> http://ci.hibernate.org/view/ORM/job/hibernate-orm-master-h2-javassist/lastCompletedBuild/testReport/org.hibernate.test.agroal/AgroalTransactionIsolationConfigTest/testSettingIsolationAsName/
> (it's build #265, haven't found a way to get a stable URL from Jenkins)
>
> The issue is in this test:
> org.hibernate.test.agroal.AgroalTransactionIsolationConfigTest.testSettingIsolationAsName
> .
>
> And we have the following stacktrace when closing the pool:
>
> java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask at 189a0b8e rejected from io.agroal.pool.util.PriorityScheduledExecutor at 2ded5d2e[Shutting down, pool size = 1, active threads = 0, queued tasks = 1, completed tasks = 2]
> 	at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)
> 	at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:326)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor.schedule(ScheduledThreadPoolExecutor.java:533)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor.execute(ScheduledThreadPoolExecutor.java:622)
> 	at io.agroal.pool.util.PriorityScheduledExecutor.executeNow(PriorityScheduledExecutor.java:46)
> 	at io.agroal.pool.util.PriorityScheduledExecutor.executeNow(PriorityScheduledExecutor.java:35)
> 	at io.agroal.pool.util.PriorityScheduledExecutor.shutdown(PriorityScheduledExecutor.java:67)
> 	at io.agroal.pool.ConnectionPool.close(ConnectionPool.java:126)
> 	at io.agroal.pool.DataSource.close(DataSource.java:54)
> 	at org.hibernate.agroal.internal.AgroalConnectionProvider.stop(AgroalConnectionProvider.java:142)
> 	at org.hibernate.testing.common.connections.BaseTransactionIsolationConfigTest.testSettingIsolationAsName(BaseTransactionIsolationConfigTest.java:101)
>
>
> It happens once in a while. I already had the issue locally but lately I
> only observed it on CI.
>
> I suppose it won't be easy to get to the bottom of it but it would be nice
> if we could get this fixed.
>
> Thanks.
>
> --
> Guillaume
>