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在Apache Tomee 1.7.4 下 可以通过指定log4j.configuration system properties来指定log4j.properties的位置。
export JAVA_OPTS="$JAVA_OPTS -Dlog4j.configuration=path_to_log4j_properties"
path_to_log4j_properties must be: **file:///**path
拷贝SLF4J 等jar包到应用WEB-INF/lib下面,注意必须是应用下面,拷贝到$CATALINA_HOME/lib下是不生效的。
jcl-over-slf4j-1.7.7.jar jul-to-slf4j-1.7.7.jar log4j-1.2.17.jar slf4j-api-1.7.7.jar slf4j-log4j12-1.7.7.jar
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在Webshpere Liberty 8.5.5.* 下 在etc/jvm.options里设置-Dlog4j.configuration=path_to_log4j_properties 不生效。
Always throws:
log4j:WARN No appenders could be found for logger log4j:WARN Please initialize the log4j system properly.
只能通过library的方式:
<application ...> <classloader> <privateLibrary id="solrExt"> <folder dir="${shared.resource.dir}/log4jProperties" /> <fileset dir="${shared.resource.dir}/solr-ext" includes="*.jar"></fileset> </privateLibrary> </classloader> </application>
一开始我在etc/jvm.options里配置-Dlog4j.configuration=path_to_log4j_properties指向的路径, 不生效后,并未删除。然后配置library, 发现仍然不能生效。最后打开liberty的trace, 发现了-Dlog4j.configuration=path_to_log4j_properties指向的路径,猜测是发生了冲突。 然后删掉-Dlog4j.configuration=path_to_log4j_properties, 就成功了。
Trouble shooting in server.xml:
<logging traceSpecification="com.ibm.ws.classloading.*=all:org.apache.solr.core.*=all" />
Last active
April 15, 2016 09:38
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apache solr + log4j configuration
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