Hi,
i've just upgrated log4j from 2.5 to 2.9.0 but after the upgrade i'm not
able to send logs to logstash.
Either while starting up now the application says that it cant find the
Async logger.
On 2017-10-06 20:32, Gary Gregory wrote:
> Hi,
>
> I think you will get better help if you provide a reproducible JUnit test
> case or program, on GitHub for example.
>
> Whenever you mention an Error or Exception, you should copy it in your
> message.
>
> Gary
>
> On Fri, Oct 6, 2017 at 8:
Log4j 1.x was declared End of Life in August 2015
(https://blogs.apache.org/foundation/entry/apache_logging_services_project_announces).
Also, Log4j 1.2 is known to be broken on Java 9
(https://blogs.apache.org/logging/entry/moving_on_to_log4j_2).
Other than that, the people in this community
Solr is an Apache project that uses slf4j, with log4j 1.2 as the final
logging destination.
In one of the classes in Solr, specifically the SolrCore class, these
are the loggers defined:
private static final Logger log =
LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
public st
