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From Boogie Shafer <>
Subject Re: solr UI logging when using logback?
Date Tue, 21 May 2013 05:23:24 GMT
thanks for the pointer on the missing logwatcher for logback...i'll take a
look at that.

on the jetty logging side of things i get nearly all the jetty logging but
the initial startup logs which seem to happen prior to the other logging
jars getting loaded. perhaps i need to add a few more statements to my
logback.xml config, but it seems to be getting its naming
YYYY_MM_DD-HHmmssSSS.start.log and pattern from somewhere outside logback.

in the YYYY_MM_DD-HHmmssSSS.start.log i get messages like this

cat 2013_05_15-141100827.start.log

Establishing start.log on Wed May 15 14:11:12 PDT 2013
14:11:15,756 |-INFO in null - Will use configuration file
14:11:15,768 |-INFO in
ch.qos.logback.access.joran.action.ConfigurationAction - debug attribute
not set
14:11:15,769 |-INFO in
ch.qos.logback.core.joran.action.StatusListenerAction - Added status
listener of type [ch.qos.logback.core.status.OnConsoleStatusListener]
14:11:15,770 |-INFO in ch.qos.logback.core.joran.action.AppenderAction -
About to instantiate appender of type
14:11:15,770 |-INFO in ch.qos.logback.core.joran.action.AppenderAction -
Naming appender as [FILE]
14:11:15,774 |-INFO in c.q.l.core.rolling.TimeBasedRollingPolicy - Will use
gz compression

On Mon, May 20, 2013 at 10:11 AM, Shawn Heisey <> wrote:

> On 5/20/2013 10:44 AM, Boogie Shafer wrote:
>> BUT i havent figured out what i need to do to get the logging events to
>> display in the SOLR admin ui
>> e.g. at http://solr-hostname:8983/**solr/#/~logging<http://solr-hostname:8983/solr/#/~logging>
> The logging page in the UI is populated by log watcher classes specific to
> the logging implementation.  Prior to 4.3, the only watcher available in
> released Solr versions was the one for java.util.logging.  The log4j
> watcher was incorporated in the 4.3.0 release.  I have been using log4j
> since 4.1-SNAPSHOT, but I don't yet have any 4.3 servers in production, so
> I can't get logs in my UI.
> To get log events in the UI with logback, you would need to implement a
> watcher specifically for logback.  I don't think this is a high priority
> item for the project at the moment, but patches are welcome.
>  AND
>> i'm wondering if its possible to get the jetty start log managed under
>> logback
> On my setup using the jetty included with Solr and the slf4j/log4j jars in
> lib/ext, all jetty log entries are logged to the same file as my Solr logs,
> according to my file.
> If you have any logging config for jetty itself, then that will be used.
>  The easiest way to proceed is to simply comment or remove that logging
> config.  That will cause jetty to find slf4j in the classpath and use it,
> which you have already configured to use logback.  The example jetty config
> does not have any logging configured.
> Thanks,
> Shawn

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