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https://issues.apache.org/jira/browse/SOLR-16342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17622417#comment-17622417
]
Kevin Risden commented on SOLR-16342:
-------------------------------------
[~zaccheob] thanks for the follow up about JsonLayout vs JsonTemplateLayout.
> <JsonLayout /> not working
> --------------------------
>
> Key: SOLR-16342
> URL: https://issues.apache.org/jira/browse/SOLR-16342
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Docker
> Affects Versions: 8.11.2
> Reporter: Zaccheo Bagnati
> Priority: Minor
>
> We customized a solr 8.1.2 docker image by adding a custom log4j2
> configuration in order to log in json format.
> The custom configuration is simply replacing the <PatternLayout> with
> <JsonLayout> in the main log file:
> {code:java}
> <RollingRandomAccessFile
> name="MainLogFile"
> fileName="${sys:solr.log.dir}/solr.log"
> filePattern="${sys:solr.log.dir}/solr.log.%i" >
> <JsonLayout />
> <Policies>
> <OnStartupTriggeringPolicy />
> <SizeBasedTriggeringPolicy size="32 MB"/>
> </Policies>
> <DefaultRolloverStrategy max="10"/>
> </RollingRandomAccessFile> {code}
> We then set the LOG4J_PROPS variable point to the custom log4j configuration.
> It is not working due to this error:
> {code:java}
> ERROR Could not create plugin of type class
> org.apache.logging.log4j.core.layout.JsonLayout for element JsonLayout:
> java.lang.NoClassDefFoundError:
> com/fasterxml/jackson/databind/ser/FilterProvider
> java.lang.NoClassDefFoundError:
> com/fasterxml/jackson/databind/ser/FilterProvider
> at
> org.apache.logging.log4j.core.layout.JsonLayout.<init>(JsonLayout.java:159)
> at
> org.apache.logging.log4j.core.layout.JsonLayout.<init>(JsonLayout.java:71)
> at
> org.apache.logging.log4j.core.layout.JsonLayout$Builder.build(JsonLayout.java:103)
> at
> org.apache.logging.log4j.core.layout.JsonLayout$Builder.build(JsonLayout.java:79)
> at
> org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1120)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1045)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1037)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1037)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:651)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:247)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:293)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:626)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:699)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:716)
> at
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:270)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
> at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
> at
> org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
> at
> org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:55)
> at
> org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
> at
> org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:33)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
> at org.eclipse.jetty.util.log.Slf4jLog.<init>(Slf4jLog.java:36)
> at org.eclipse.jetty.util.log.Slf4jLog.<init>(Slf4jLog.java:30)
> at
> java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at
> java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
> at org.eclipse.jetty.util.log.Log.initialized(Log.java:158)
> at org.eclipse.jetty.util.log.Log.getLogger(Log.java:278)
> at org.eclipse.jetty.util.log.Log.getLogger(Log.java:267)
> at
> org.eclipse.jetty.xml.XmlConfiguration.<clinit>(XmlConfiguration.java:88)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at org.eclipse.jetty.start.Main.invokeMain(Main.java:218)
> at org.eclipse.jetty.start.Main.start(Main.java:491)
> at org.eclipse.jetty.start.Main.main(Main.java:77)
> Caused by: java.lang.ClassNotFoundException:
> com.fasterxml.jackson.databind.ser.FilterProvider
> at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:476)
> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
> ... 41 more
> {code}
> It seems that the jackson library is not in the classpath.
> As a workaround we symlinked the jackson libraries that exists in the
> /opt/solr/server/solr-webapp/webapp/WEB-INF/lib/ directory to
> /opt/solr/server/lib/ext/ while building the docker image:
> {code:java}
> ...
> RUN ln -s
> /opt/solr/server/solr-webapp/webapp/WEB-INF/lib/jackson-core-2.13.3.jar
> /opt/solr/server/lib/ext/jackson-core-2.13.3.jar && \
> ln -s
> /opt/solr/server/solr-webapp/webapp/WEB-INF/lib/jackson-databind-2.13.3.jar
> /opt/solr/server/lib/ext/jackson-databind-2.13.3.jar && \
> ln -s
> /opt/solr/server/solr-webapp/webapp/WEB-INF/lib/jackson-annotations-2.13.3.jar
> /opt/solr/server/lib/ext/jackson-annotations-2.13.3.jar
> ...
> {code}
> The expected behavior is that it should work "out of the box" since the json
> log is also mentioned in the documentation in
> https://solr.apache.org/guide/8_11/configuring-logging.html
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