Here's a direct link [1] to the explanation of the issue which I confirmed myself to be the actual issue I was facing.
Maybe it will help both the OP and logback :) [1] https://blog.arkey.fr/2019/09/13/watchservice-and-bind-mount/ On Fri, Aug 20, 2021 at 10:01 AM Raymond Augé <raymond.a...@liferay.com> wrote: > Hi, a long time lurker here 🙂. > > So, I suspect the issue is with k8s and it's volumes for config > maps/secrets symlinks are a pain point in Java. Even inotify based > WachService cannot handle them. > > The issue is that logback is only using a timestamp to detect > configuration file changes, which is fine as we know in 99% of Java usages. > > However, this doesn't seem to work with the config map volumes supplied in > a k8s env because they use symlinks which don't cause the timestamp to > change, I agree it's weird and unexpected. > > However, supplying configuration files via K8s config maps is going to > start being a much more common use case as time passes. > > Logback should probably start including a checksum to detect if the > contents of the file have changed and use a logical OR with the timestamp > check so that either changes causes a reload. > > FYI, I had to patch a similar issue in Apache Felix Fileinstall due to the > same k8s config maps/secrets issue [1] > > My 2 cents, > Ray > > [1] https://issues.apache.org/jira/browse/FELIX-6229 > > > On Fri., Aug. 20, 2021, 5:35 a.m. Ceki Gülcü, <c...@qos.ch> wrote: > >> Hello Kedar, >> >> Have you tried to reproduce the problem on a stand alone machine without >> k8? >> >> >> >> On 20/08/2021 00:41, Kedar Sirshikar wrote: >> > Hello Ceki, >> > I tried debugging by reproducing the issue and observed that after 7th >> > attempt of log change, autoScan stops working. >> > >> > Have you came across similar issue in 1.2.3 version where autoScan does >> > not pick changes from config xml if it gets changed after a certain >> count ? >> > In the meantime, I am trying to see if same issue occurs on 1.1.3 >> > version because setMainWatchURL method inConfigurationWatchListUtil is >> > different on both versions. >> > >> > >> > Thanks, >> > Kedar. >> > >> > >> > On Sat, Aug 14, 2021 at 3:00 AM <logback-user-requ...@qos.ch >> > <mailto:logback-user-requ...@qos.ch>> wrote: >> > >> > Send logback-user mailing list submissions to >> > logback-user@qos.ch <mailto:logback-user@qos.ch> >> > >> > To subscribe or unsubscribe via the World Wide Web, visit >> > http://mailman.qos.ch/mailman/listinfo/logback-user >> > <http://mailman.qos.ch/mailman/listinfo/logback-user> >> > or, via email, send a message with subject or body 'help' to >> > logback-user-requ...@qos.ch <mailto:logback-user-requ...@qos.ch> >> > >> > You can reach the person managing the list at >> > logback-user-ow...@qos.ch <mailto:logback-user-ow...@qos.ch> >> > >> > When replying, please edit your Subject line so it is more specific >> > than "Re: Contents of logback-user digest..." >> > >> > >> > Today's Topics: >> > >> > 1. Re: logback autoscan is not working intermittently in k8s pod >> > (Ceki Gülcü) >> > >> > >> > >> ---------------------------------------------------------------------- >> > >> > Message: 1 >> > Date: Fri, 13 Aug 2021 14:51:09 +0200 >> > From: Ceki Gülcü <c...@qos.ch <mailto:c...@qos.ch>> >> > To: logback-user@qos.ch <mailto:logback-user@qos.ch> >> > Subject: Re: [logback-user] logback autoscan is not working >> > intermittently in k8s pod >> > Message-ID: <f39cbede-6e95-7e60-d01e-ca27599bf...@qos.ch >> > <mailto:f39cbede-6e95-7e60-d01e-ca27599bf...@qos.ch>> >> > Content-Type: text/plain; charset=utf-8; format=flowed >> > >> > Hello Kedar, >> > >> > >> > I see that changes to the logback config file are picked up. There >> are >> > some errors reported when processing the configuration file but >> these >> > are unrelated to the issue at hand, i.e. auto scan not working. >> > >> > I don't have further suggestions. >> > >> > --Ceki >> > >> > >> > On 13/08/2021 09:59, Kedar Sirshikar wrote: >> > > Hello team, >> > > Just trying to check if anyone got a chance to look at this case? >> > > Appreciate if any clue/hint is provided to resolve this issue. >> > > >> > > Thanks, >> > > Kedar. >> > > >> > > >> > > On Wed, Aug 11, 2021 at 12:57 PM Kedar Sirshikar >> > > <kedargsirshi...@gmail.com <mailto:kedargsirshi...@gmail.com> >> > <mailto:kedargsirshi...@gmail.com >> > <mailto:kedargsirshi...@gmail.com>>> wrote: >> > > >> > > Resending the attachment by updating the subject. Please let >> > me know >> > > if any additional details are required from my side. >> > > >> > > Thanks, >> > > Kedar. >> > > >> > > >> > > ---------- Forwarded message --------- >> > > From: *Kedar Sirshikar* <kedargsirshi...@gmail.com >> > <mailto:kedargsirshi...@gmail.com> >> > > <mailto:kedargsirshi...@gmail.com >> > <mailto:kedargsirshi...@gmail.com>>> >> > > Date: Wed, Aug 11, 2021 at 7:58 AM >> > > Subject: Re: logback-user Digest, Vol 115, Issue 2 >> > > To: <logback-user@qos.ch <mailto:logback-user@qos.ch> >> > <mailto:logback-user@qos.ch <mailto:logback-user@qos.ch>>> >> > > >> > > >> > > Hi Ceki, Thank you for the reply. Forgot to send the logs >> > earlier so >> > > please refer attachment. >> > > I have also added Notes at lines 1 and 91 to describe the >> test. >> > > >> > > >> > > Thanks, >> > > Kedar. >> > > >> > > >> > > On Wed, Aug 11, 2021 at 3:00 AM <logback-user-requ...@qos.ch >> > <mailto:logback-user-requ...@qos.ch> >> > > <mailto:logback-user-requ...@qos.ch >> > <mailto:logback-user-requ...@qos.ch>>> wrote: >> > > >> > > Send logback-user mailing list submissions to >> > > logback-user@qos.ch <mailto:logback-user@qos.ch> >> > <mailto:logback-user@qos.ch <mailto:logback-user@qos.ch>> >> > > >> > > To subscribe or unsubscribe via the World Wide Web, visit >> > > http://mailman.qos.ch/mailman/listinfo/logback-user >> > <http://mailman.qos.ch/mailman/listinfo/logback-user> >> > > <http://mailman.qos.ch/mailman/listinfo/logback-user >> > <http://mailman.qos.ch/mailman/listinfo/logback-user>> >> > > or, via email, send a message with subject or body >> 'help' to >> > > logback-user-requ...@qos.ch <mailto:logback-user-requ...@qos.ch> >> > <mailto:logback-user-requ...@qos.ch >> > <mailto:logback-user-requ...@qos.ch>> >> > > >> > > You can reach the person managing the list at >> > > logback-user-ow...@qos.ch <mailto:logback-user-ow...@qos.ch> >> > <mailto:logback-user-ow...@qos.ch <mailto:logback-user-ow...@qos.ch >> >> >> > > >> > > When replying, please edit your Subject line so it is >> > more specific >> > > than "Re: Contents of logback-user digest..." >> > > >> > > >> > > Today's Topics: >> > > >> > > 1. logback autoscan is not working intermittently in >> > k8s pod >> > > (Kedar Sirshikar) >> > > 2. Re: logback autoscan is not working intermittently >> > in k8s pod >> > > (Ceki Gülcü) >> > > >> > > >> > > >> > >> ---------------------------------------------------------------------- >> > > >> > > Message: 1 >> > > Date: Tue, 10 Aug 2021 23:07:51 -0700 >> > > From: Kedar Sirshikar <kedargsirshi...@gmail.com >> > <mailto:kedargsirshi...@gmail.com> >> > > <mailto:kedargsirshi...@gmail.com >> > <mailto:kedargsirshi...@gmail.com>>> >> > > To: logback-user@qos.ch <mailto:logback-user@qos.ch> >> > <mailto:logback-user@qos.ch <mailto:logback-user@qos.ch>> >> > > Subject: [logback-user] logback autoscan is not working >> > > intermittently >> > > in k8s pod >> > > Message-ID: >> > > >> > > >> > <CAO= >> cjl+emfcte7en+7nqumzaxqoyveyn1gxcywdwfkt0kbj...@mail.gmail.com <mailto: >> cjl%2bemfcte7en%2b7nqumzaxqoyveyn1gxcywdwfkt0kbj...@mail.gmail.com> >> > > >> > <mailto: >> cjl%2bemfcte7en%2b7nqumzaxqoyveyn1gxcywdwfkt0kbj...@mail.gmail.com >> <mailto: >> cjl%252bemfcte7en%252b7nqumzaxqoyveyn1gxcywdwfkt0kbj...@mail.gmail.com>>> >> > > Content-Type: text/plain; charset="utf-8" >> > > >> > > Hi team, >> > > I have raised a detailed query here >> > > >> > < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> > >> > > >> > < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> >>> >> > > about >> > > the issue I am facing. >> > > Can someone please share inputs or any hint for solving >> the >> > > above problem? >> > > Let me know if any details are required from my side. >> > > >> > > Thanks, >> > > Kedar. >> > > -------------- next part -------------- >> > > An HTML attachment was scrubbed... >> > > URL: >> > > >> > < >> http://mailman.qos.ch/pipermail/logback-user/attachments/20210810/7ee3b6b7/attachment-0001.html >> < >> http://mailman.qos.ch/pipermail/logback-user/attachments/20210810/7ee3b6b7/attachment-0001.html >> > >> > > >> > < >> http://mailman.qos.ch/pipermail/logback-user/attachments/20210810/7ee3b6b7/attachment-0001.html >> < >> http://mailman.qos.ch/pipermail/logback-user/attachments/20210810/7ee3b6b7/attachment-0001.html >> >>> >> > > >> > > ------------------------------ >> > > >> > > Message: 2 >> > > Date: Wed, 11 Aug 2021 08:39:46 +0200 >> > > From: Ceki Gülcü <c...@qos.ch <mailto:c...@qos.ch> >> > <mailto:c...@qos.ch <mailto:c...@qos.ch>>> >> > > To: logback-user@qos.ch <mailto:logback-user@qos.ch> >> > <mailto:logback-user@qos.ch <mailto:logback-user@qos.ch>> >> > > Subject: Re: [logback-user] logback autoscan is not >> working >> > > intermittently in k8s pod >> > > Message-ID: <2a210996-a364-e4f0-fe85-508c2af0b...@qos.ch >> > <mailto:2a210996-a364-e4f0-fe85-508c2af0b...@qos.ch> >> > > <mailto:2a210996-a364-e4f0-fe85-508c2af0b...@qos.ch >> > <mailto:2a210996-a364-e4f0-fe85-508c2af0b...@qos.ch>>> >> > > Content-Type: text/plain; charset=utf-8; format=flowed >> > > >> > > >> > > Hello Kedar, >> > > >> > > Can you also provide the internal status messages >> > generated by >> > > logback? >> > > -- >> > > Ceki >> > > >> > > On 11/08/2021 08:07, Kedar Sirshikar wrote: >> > > > Hi team, >> > > > I have raised a detailed query here >> > > > >> > > >> > < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> > >> > > >> > < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> < >> https://stackoverflow.com/questions/68721761/logback-autoscan-is-not-working-intermittently-in-k8s-pod >> >>> about >> > > >> > > > the issue I am facing. >> > > > Can someone please share inputs or any hint for >> > solving the >> > > above problem? >> > > > Let me know if any details are required from my side. >> > > > >> > > > Thanks, >> > > > Kedar. >> > > > >> > > > _______________________________________________ >> > > > logback-user mailing list >> > > > logback-user@qos.ch <mailto:logback-user@qos.ch> >> > <mailto:logback-user@qos.ch <mailto:logback-user@qos.ch>> >> > > > http://mailman.qos.ch/mailman/listinfo/logback-user >> > <http://mailman.qos.ch/mailman/listinfo/logback-user> >> > > <http://mailman.qos.ch/mailman/listinfo/logback-user >> > <http://mailman.qos.ch/mailman/listinfo/logback-user>> >> > > > >> > > >> > > >> > > ------------------------------ >> > > >> > >> > >> > ------------------------------ >> > >> > Subject: Digest Footer >> > >> > _______________________________________________ >> > logback-user mailing list >> > logback-user@qos.ch <mailto:logback-user@qos.ch> >> > http://mailman.qos.ch/mailman/listinfo/logback-user >> > <http://mailman.qos.ch/mailman/listinfo/logback-user> >> > >> > ------------------------------ >> > >> > End of logback-user Digest, Vol 115, Issue 6 >> > ******************************************** >> > >> > >> > _______________________________________________ >> > logback-user mailing list >> > logback-user@qos.ch >> > http://mailman.qos.ch/mailman/listinfo/logback-user >> > >> _______________________________________________ >> logback-user mailing list >> logback-user@qos.ch >> http://mailman.qos.ch/mailman/listinfo/logback-user > > -- *Raymond Augé* (@rotty3000) Senior Software Architect *Liferay, Inc.* (@Liferay) OSGi Fellow, Java Champion
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