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Posted to dev@sling.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2013/09/09 08:37:51 UTC

[jira] [Updated] (SLING-3045) [logback]Warning logs logged for 'No appenders present in context [sling] for logger'

     [ https://issues.apache.org/jira/browse/SLING-3045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chetan Mehrotra updated SLING-3045:
-----------------------------------

    Attachment: SLING-3045.patch

Logback would log a warning if no appender is found when a log message is received. During reset there is a small window where no appenders would be present and such a warning is fine.

LogbackManager accounts for such scenario by recording the time 'resetStartTime' at which reset happened. By that time it ensures a default console appender is attached to root. It only logs the warning if such a message is found *after* resetStartTime. However its possible that in same millisecond a log message arrives so suh filtering would fail.

To account for that we now add a millisecond extra so as to ensure the 'resetStartTime' reflects the time by which a console appender has been attached to the root logger. Any warn message after the resetStartTime would trigger log at console

Also set the default log level for root logger to INFO
                
> [logback]Warning logs logged for 'No appenders present in context [sling] for logger'
> -------------------------------------------------------------------------------------
>
>                 Key: SLING-3045
>                 URL: https://issues.apache.org/jira/browse/SLING-3045
>             Project: Sling
>          Issue Type: Bug
>          Components: Commons
>    Affects Versions: Commons Log 4.0.0
>            Reporter: Chetan Mehrotra
>            Priority: Minor
>         Attachments: SLING-3045.patch
>
>
> During system startup at times following warning is seen
> ---
> 14:48:24,969 |-WARN in Logger[org.apache.sling.installer.core.impl.OsgiInstallerImpl] - No appenders present in context [sling] for logger [org.apache.sling.installer.core.impl.OsgiInstallerImpl].
> ---
> Further some debug level logs are also seen during the startup

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