[logback-user] logback autoscan is not working intermittently in k8s pod

Kedar Sirshikar kedargsirshikar at gmail.com
Fri Aug 20 16:03:02 CEST 2021


yes we tried but the issue was not observed on a stand alone machine
without k8s (on logback version 1.2.3) so there is definitely some role of
k8s like ConfigMap.

Currently, I am facing challenges in order to downgrade dependency to 1.1.3
in the product but I'll keep you posted in case I would be able to verify
with 1.1.3

In addition, we suggested our client to restart all k8s pods showing this
anomaly however client disagreed saying it may have an adverse impact and
is asking for root cause analysis.

Let me know if you need any additional information, I can share that as
issue is getting consistently reproduced after updating log-level 7-8 times.

Thanks,
Kedar.


On Fri, Aug 20, 2021 at 3:00 AM <logback-user-request at qos.ch> wrote:

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> Today's Topics:
>
>    1. Re: logback autoscan is not working intermittently in k8s pod
>       (Ceki Gülcü)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 20 Aug 2021 11:35:19 +0200
> From: Ceki Gülcü <ceki at qos.ch>
> To: logback-user at qos.ch
> Subject: Re: [logback-user] logback autoscan is not working
>         intermittently in k8s pod
> Message-ID: <571ae229-e3ea-93b8-1ad7-b949db706741 at qos.ch>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> 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-request at qos.ch
> > <mailto:logback-user-request at qos.ch>> wrote:
> >
> >     Send logback-user mailing list submissions to
> >     logback-user at qos.ch <mailto:logback-user at 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-request at qos.ch <mailto:logback-user-request at qos.ch>
> >
> >     You can reach the person managing the list at
> >     logback-user-owner at qos.ch <mailto:logback-user-owner at 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 <ceki at qos.ch <mailto:ceki at qos.ch>>
> >     To: logback-user at qos.ch <mailto:logback-user at qos.ch>
> >     Subject: Re: [logback-user] logback autoscan is not working
> >              intermittently in k8s pod
> >     Message-ID: <f39cbede-6e95-7e60-d01e-ca27599bf453 at qos.ch
> >     <mailto:f39cbede-6e95-7e60-d01e-ca27599bf453 at 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
> >      > <kedargsirshikar at gmail.com <mailto:kedargsirshikar at gmail.com>
> >     <mailto:kedargsirshikar at gmail.com
> >     <mailto:kedargsirshikar at 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* <kedargsirshikar at gmail.com
> >     <mailto:kedargsirshikar at gmail.com>
> >      >     <mailto:kedargsirshikar at gmail.com
> >     <mailto:kedargsirshikar at gmail.com>>>
> >      >     Date: Wed, Aug 11, 2021 at 7:58 AM
> >      >     Subject: Re: logback-user Digest, Vol 115, Issue 2
> >      >     To: <logback-user at qos.ch <mailto:logback-user at qos.ch>
> >     <mailto:logback-user at qos.ch <mailto:logback-user at 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-request at qos.ch
> >     <mailto:logback-user-request at qos.ch>
> >      >     <mailto:logback-user-request at qos.ch
> >     <mailto:logback-user-request at qos.ch>>> wrote:
> >      >
> >      >         Send logback-user mailing list submissions to
> >      > logback-user at qos.ch <mailto:logback-user at qos.ch>
> >     <mailto:logback-user at qos.ch <mailto:logback-user at 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-request at qos.ch <mailto:logback-user-request at qos.ch>
> >     <mailto:logback-user-request at qos.ch
> >     <mailto:logback-user-request at qos.ch>>
> >      >
> >      >         You can reach the person managing the list at
> >      > logback-user-owner at qos.ch <mailto:logback-user-owner at qos.ch>
> >     <mailto:logback-user-owner at qos.ch <mailto:logback-user-owner at 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 <kedargsirshikar at gmail.com
> >     <mailto:kedargsirshikar at gmail.com>
> >      >         <mailto:kedargsirshikar at gmail.com
> >     <mailto:kedargsirshikar at gmail.com>>>
> >      >         To: logback-user at qos.ch <mailto:logback-user at qos.ch>
> >     <mailto:logback-user at qos.ch <mailto:logback-user at qos.ch>>
> >      >         Subject: [logback-user] logback autoscan is not working
> >      >         intermittently
> >      >                  in      k8s pod
> >      >         Message-ID:
> >      >
> >      >
> >       <CAO=
> cJL+EMFCTe7En+7nqUmzaxQoYVEYN1GXCYwdwfkt0KbjiDQ at mail.gmail.com <mailto:
> cJL%2BEMFCTe7En%2B7nqUmzaxQoYVEYN1GXCYwdwfkt0KbjiDQ at mail.gmail.com>
> >      >
> >       <mailto:
> cJL%2BEMFCTe7En%2B7nqUmzaxQoYVEYN1GXCYwdwfkt0KbjiDQ at mail.gmail.com
> <mailto:
> cJL%252BEMFCTe7En%252B7nqUmzaxQoYVEYN1GXCYwdwfkt0KbjiDQ at 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 <ceki at qos.ch <mailto:ceki at qos.ch>
> >     <mailto:ceki at qos.ch <mailto:ceki at qos.ch>>>
> >      >         To: logback-user at qos.ch <mailto:logback-user at qos.ch>
> >     <mailto:logback-user at qos.ch <mailto:logback-user at qos.ch>>
> >      >         Subject: Re: [logback-user] logback autoscan is not
> working
> >      >                  intermittently in k8s pod
> >      >         Message-ID: <2a210996-a364-e4f0-fe85-508c2af0b733 at qos.ch
> >     <mailto:2a210996-a364-e4f0-fe85-508c2af0b733 at qos.ch>
> >      >         <mailto:2a210996-a364-e4f0-fe85-508c2af0b733 at qos.ch
> >     <mailto:2a210996-a364-e4f0-fe85-508c2af0b733 at 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 at qos.ch <mailto:logback-user at qos.ch>
> >     <mailto:logback-user at qos.ch <mailto:logback-user at 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
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> >
> >     End of logback-user Digest, Vol 115, Issue 6
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> >
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