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https://issues.apache.org/jira/browse/SOLR-11453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16465231#comment-16465231
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Shawn Heisey commented on SOLR-11453:
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[~ralph.go...@dslextreme.com], thanks for the docs. There is a lot of
information there, but I'm not sure that there is enough information there for
*ME* to figure out how to write a script to look at sysprops and determine
whether certain loggers will be sent to the main file or to their own file(s).
I see in the docs where a list of three parameters is sent to the script, one
of which is logEvent. Is there a reference for everything contained within
those parameters?
Is javascript the recommended language choice? I'm wondering about its
performance, mostly. I don't want to introduce really slow components into the
logging. One of the examples on that doc page says javascript, but appears to
actually include Java code. If my interpretation of that example is correct,
does *that* perform well?
If using javascript directly and not including Java code, are sysprops
available? If so, how are they accessed?
> Create separate logger for slow requests
> ----------------------------------------
>
> Key: SOLR-11453
> URL: https://issues.apache.org/jira/browse/SOLR-11453
> Project: Solr
> Issue Type: Improvement
> Components: logging
> Affects Versions: 7.0.1
> Reporter: Shawn Heisey
> Assignee: Shawn Heisey
> Priority: Minor
> Attachments: SOLR-11453.patch, SOLR-11453.patch, SOLR-11453.patch,
> SOLR-11453.patch, slowlog-informational.patch
>
>
> There is some desire on the mailing list to create a separate logfile for
> slow queries. Currently it is not possible to do this cleanly, because the
> WARN level used by slow query logging within the SolrCore class is also used
> for other events that SolrCore can log. Those messages would be out of place
> in a slow query log. They should typically stay in main solr logfile.
> I propose creating a custom logger for slow queries, similar to what has been
> set up for request logging. In the SolrCore class, which is
> org.apache.solr.core.SolrCore, there is a special logger at
> org.apache.solr.core.SolrCore.Request. This is not a real class, just a
> logger which makes it possible to handle those log messages differently than
> the rest of Solr's logging. I propose setting up another custom logger
> within SolrCore which could be org.apache.solr.core.SolrCore.SlowRequest.
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