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https://issues.apache.org/jira/browse/SOLR-7887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16385637#comment-16385637
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Erick Erickson commented on SOLR-7887:
--------------------------------------
Unfortunately, I've been concentrating on getting unit tests to run and the
like. With the current patch when I try to start a regular Solr instance I get:
2018-03-04 21:58:00,789 main ERROR Unable to invoke factory method in class
org.apache.logging.log4j.core.appender.RollingFileAppender for element
RollingFile: java.lang.IllegalStateException: No factory method found for class
org.apache.logging.log4j.core.appender.RollingFileAppender
java.lang.IllegalStateException: No factory method found for class
org.apache.logging.log4j.core.appender.RollingFileAppender
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:229)
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:134)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:958)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:898)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:890)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:513)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:237)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:249)
at
org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634)
at
org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:153)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
at
org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:122)
at
org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:43)
at
org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46)
at
org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
at org.apache.solr.util.SolrCLI.<clinit>(SolrCLI.java:227)
2018-03-04 21:58:00,791 main ERROR Null object returned for RollingFile in
Appenders.
2018-03-04 21:58:00,799 main ERROR Unable to locate appender "RollingFile" for
logger config "root"
> Upgrade Solr to use log4j2 -- log4j 1 now officially end of life
> ----------------------------------------------------------------
>
> Key: SOLR-7887
> URL: https://issues.apache.org/jira/browse/SOLR-7887
> Project: Solr
> Issue Type: Task
> Affects Versions: 5.2.1
> Reporter: Shawn Heisey
> Assignee: Varun Thacker
> Priority: Major
> Attachments: SOLR-7887-WIP.patch, SOLR-7887-eoe-review.patch,
> SOLR-7887-eoe-review.patch, SOLR-7887.patch, SOLR-7887.patch,
> SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch,
> SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch
>
>
> The logging services project has officially announced the EOL of log4j 1:
> https://blogs.apache.org/foundation/entry/apache_logging_services_project_announces
> In the official binary jetty deployment, we use use log4j 1.2 as our final
> logging destination, so the admin UI has a log watcher that actually uses
> log4j and java.util.logging classes. That will need to be extended to add
> log4j2. I think that might be the largest pain point to this upgrade.
> There is some crossover between log4j2 and slf4j. Figuring out exactly which
> jars need to be in the lib/ext directory will take some research.
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