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https://issues.apache.org/jira/browse/SOLR-3829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13464050#comment-13464050
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Hoss Man commented on SOLR-3829:
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I'm not really familiar with this code, but based on the issue description: if
LogWatcher has a toSolrDocument method that creates "fake" SolrDocuments based
on log messages, that would definitely make the output affected by the schema,
which oculd cause all sorts of potential problems when log message property
names and schema field names overlap.
I have no idea why LogWatcher doesn't just output a Map or NamedList for each
log message - that seems like it would be much more straight forward.
> Admin UI Logging events broken if schema.xml defines a catch-all dynamicField
> with type ignored
> -----------------------------------------------------------------------------------------------
>
> Key: SOLR-3829
> URL: https://issues.apache.org/jira/browse/SOLR-3829
> Project: Solr
> Issue Type: Bug
> Components: web gui
> Affects Versions: 4.0-BETA
> Reporter: Andreas Hubold
> Attachments: SOLR-3829.patch
>
>
> The Solr Admin page does not show any log events. There are Javascript errors
> {noformat}
> TypeError: doc.logger.esc is not a function
> ... '<abbr title="' + doc.logger.esc() + '">' + doc.logger.split( '.'
> ).pop().esc()...
> {noformat}
> This is because the response of the LoggingHandler added unexpected {{[ ...
> ]}} characters around the values for time, level, logger and message:
> {noformat}
> ...
> "history":{"numFound":2,"start":0,"docs":[{"time":["2012-09-11T15:07:05.453Z"],"level":["WARNING"],"logger":["org.apache.solr.core.SolrCore"],"message":["New
> index directory detected: ...
> {noformat}
> This is caused by the way the JSON is created.
> org.apache.solr.logging.LogWatcher#toSolrDocument creates a SolrDocument
> which is then formatted with a org.apache.solr.response.JSONResponseWriter.
> But the JSONResponseWriter uses the index schema to decide how to format the
> JSON. We have the following field declaration in schema.xml:
> {noformat}
> <dynamicField name="*" type="ignored" />
> {noformat}
> The field type "ignored" has the attribute multiValued set to true. Because
> of this JSONResponseWriter adds [] characters in
> org.apache.solr.response.JSONWriter#writeSolrDocument
> The formatting should be independent from schema.xml
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