Re: [jira] [Commented] (ARTEMIS-3272) Remaining AIO issue from ARTEMIS-3084

[Francesco Nigro <ni...@gmail.com>]

I suggest to use XFS because libAIO still perform many blocking operations
with ext4 while approaching to the max depth I/O queue eh under heavy load
or with a slow disk

Il ven 30 apr 2021, 21:21 Anton Roskvist (Jira) <ji...@apache.org> ha
scritto:

>
>     [
> https://issues.apache.org/jira/browse/ARTEMIS-3272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17337580#comment-17337580
> ]
>
> Anton Roskvist commented on ARTEMIS-3272:
> -----------------------------------------
>
> I have attached the files you requested. I don't really know what happened
> to the formatting in the original file, but I made these with windows line
> endings, hope they look better.
>
> Yes, I can sort of reproduce it... it happens several times a day in a
> testing environment. So not on demand, but reliably.
>
> > Remaining AIO issue from ARTEMIS-3084
> > -------------------------------------
> >
> >                 Key: ARTEMIS-3272
> >                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3272
> >             Project: ActiveMQ Artemis
> >          Issue Type: Bug
> >    Affects Versions: 2.16.0, 2.17.0
> >            Reporter: Anton Roskvist
> >            Priority: Major
> >         Attachments: broker.xml, formatted_stack.txt, stack, stack.txt
> >
> >
> > Hi,
> > Starting with artemis-2.16.0 I was getting these WARN messages, followed
> by a broker shutdown:
> > {quote}
> > WARN [org.apache.activemq.artemis.core.server] AMQ222010: Critical IO
> Error, shutting down the server.
> file=AIOSequentialFile:/path/to/artemis-2.16.0/data/journal/activemq-data-2665706.amq,
> message=Timeout on close: java.io.IOException: Timeout on close
> > {quote}
> > They were not that frequent, maybe once per week or so. I read that this
> was a known issue that was supposed to be resolved in artemis-2.17.0.
> > After upgrading I see this WARN message instead, followed by a thread
> dump:
> > {quote}WARN [org.apache.activemq.artemis.journal] File
> activemq-data-49.amq still has pending IO before closing it
> > {quote}
> > This does not appear to cause any issues as far as I can tell but it is
> printed several times a day so the log is completely cluttered (from the
> thread dump).
> > I am attaching one of the thread dumps from my logs here: [^stack]
> > In this setup I am running a static broker cluster of 5 brokers, each
> processing messages at about 40-50 Mbps
> > Clients are primarily using OpenWire
> > ext4 is used as the filesystem
> > Br,
> > Anton
>
>
>
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