Sling log rotation pattern - twice a day not working as expected | Community
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yonit_david
Level 3
January 14, 2021
Solved

Sling log rotation pattern - twice a day not working as expected

  • January 14, 2021
  • 2 replies
  • 1843 views

Has anyone been successful in getting the sling log rotation pattern for twice a day - at noon and at midnight to actually work?  '.'yyyy-MM-dd-a ”

Other patterns work as expected, but this one seems to just rotate once a day at midnight with the addition of AM or PM on the filepath instead of actually generating 2 per day.

 

 

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Best answer by yonit_david

This was found to be a bug and a jira was created for it.


Sling has logback integration for all logging-related activities.
Date Pattern('.'yyyy-MM-dd-a ) is not treated as valid pattern in logback.[0].
The corresponding bug has been raised in logback Jira - https://jira.qos.ch/browse/LOGBACK-1552
According to the status of logback JIRA, we will keep updating this JIRA
[0]: https://github.com/qos-ch/logback/blob/bbc783e6d68482abe8e7dff0d06708175e971b91/logback-core/src/main/java/ch/qos/logback/core/rolling/helper/PeriodicityType.java#L22

The issue is pending with Sling to fix the same which than be included in our AEM as part of Service pack, so I would request you to please use wait for the SP to fix the issue because the issues can be fixed only via SP/CFP cadence as Adobe recommended.

2 replies

Vijayalakshmi_S
Vijayalakshmi_S
Level 10
January 20, 2021

Hi @yonit_david,

Per the significance of this pattern from Sling docs, could see that there is no explicit generation of 2 files per day.(Should be with AM and PM)

Could you confirm if is deviating the below explanation.

https://sling.apache.org/documentation/development/logging.html

 

Note : I will try from my end as well and update this thread.

    Y
    yonit_davidAuthor
    Level 3
    January 20, 2021

    Thank you so much for your response! It says until it is rolled over at midnight. It is clear to me from this definition that there should be a rollover at noon under AM and a rollover at midnight under PM. I only get a rollover at midnight as AM and none at noon at all, which does not seem to follow the definition here.

    This is what I am getting on error log:

     

     

    Y
    yonit_davidAuthorAccepted solution
    Level 3
    February 19, 2021

    This was found to be a bug and a jira was created for it.


    Sling has logback integration for all logging-related activities.
    Date Pattern('.'yyyy-MM-dd-a ) is not treated as valid pattern in logback.[0].
    The corresponding bug has been raised in logback Jira - https://jira.qos.ch/browse/LOGBACK-1552
    According to the status of logback JIRA, we will keep updating this JIRA
    [0]: https://github.com/qos-ch/logback/blob/bbc783e6d68482abe8e7dff0d06708175e971b91/logback-core/src/main/java/ch/qos/logback/core/rolling/helper/PeriodicityType.java#L22

    The issue is pending with Sling to fix the same which than be included in our AEM as part of Service pack, so I would request you to please use wait for the SP to fix the issue because the issues can be fixed only via SP/CFP cadence as Adobe recommended.

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