[jira] [Created] (LOG4J2-1982) log24-config.xsd only allows one AppenderRef element for each Logger element

["Christoph Lembeck (JIRA)" <ji...@apache.org>]

Christoph Lembeck created LOG4J2-1982:
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             Summary: log24-config.xsd only allows one AppenderRef element for each Logger element
                 Key: LOG4J2-1982
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1982
             Project: Log4j 2
          Issue Type: Bug
          Components: Configurators
    Affects Versions: 2.8.2
         Environment: Alle environments
            Reporter: Christoph Lembeck


The xsd schema definition for the log4j configuration allow only one AppenderRef per Logger. The definition of the Logger element is as follows
{code:xml}
<xs:complexType name="LoggerType">
    <xs:sequence>
        <xs:choice minOccurs="0" maxOccurs="1">
            <xs:element name="Filters" type="FiltersType"/>
            <xs:element name="Filter" type="FilterType"/>
        </xs:choice>
        <xs:element name="AppenderRef" type="AppenderRefType"/>
    </xs:sequence>
    <xs:attribute name="name" type="xs:string" use="required"/>
    <xs:attribute name="level" type="xs:string" use="optional"/>
    <xs:attribute name="additivity" type="xs:string" use="optional"/>
</xs:complexType>
{code}

Comparing this to the Definition of the root Logger we see a sequence of multiple Appender
Ref elements to be allowed.
{code:xml}
<xs:complexType name="RootType">
    <xs:sequence>
            <xs:element name="AppenderRef" type="AppenderRefType" minOccurs="1" maxOccurs="unbounded"/>
    </xs:sequence>
    <xs:attribute name="level" type="xs:string"/>
</xs:complexType>
{code}

With this configuration it is not possible to define a specific Logger, that shows infos and errors to the console and writes only the errors in a log file, since there can only be one appender defined for that logger.

Please modify the xsd file to allow mutliple AppenderRef elements per Logger.



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