If you remove the log4j jar, the ES logging is initialized by a logging facade called SLF4J, and this passes initialization to the underlying logging framework, e.g. log4j2
https://github.com/elasticsearch/elasticsearch/blob/master/src/main/java/org/elasticsearch/common/logging/ESLoggerFactory.java#L40 Jörg On Wed, Feb 18, 2015 at 4:28 PM, Mohamed Amine ABDESSEMED < [email protected]> wrote: > I can't see how removing the log4 jar and logging.yml will allow > elasticsearch to init log4j2 using the xml conf file since the allowed > suffixes are 'yml, yaml, json , properties' ( > https://github.com/elasticsearch/elasticsearch/blob/master/src/main/java/org/elasticsearch/common/logging/log4j/LogConfigurator.java#L48) > ? > > Amine > > On Wednesday, February 18, 2015 at 9:12:15 AM UTC+1, Jörg Prante wrote: >> >> It's easy, just remove log4j jar and config/logging.yml, then add >> log4j2.xml, log4j-api, log4j-core, log4j-slf4j-impl and slf4j-api jars to >> the lib folder. Then you can set up async appenders with log4j2, which are >> 18x more performant than log4j 1.x appenders. >> >> Jörg >> >> On Tue, Feb 17, 2015 at 5:42 PM, Mohamed Amine ABDESSEMED < >> [email protected]> wrote: >> >>> We've set up elasticsearch logging as described here logging >>> elasticsearch events with logstash >>> <http://www.elasticsearch.org/blog/logging-elasticsearch-events-with-logstash-and-elasticsearch/> >>> and >>> we want to use an AsyncAppender instead of using a SocketAppender directly >>> in order to avoid freeze times while logging but only xml log4j conf file >>> format supports AsyncAppender. >>> >>> Is there another way to achieve this since elasticsearch doesn't use xml >>> conf files? >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "elasticsearch" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit https://groups.google.com/d/ >>> msgid/elasticsearch/095b157e-f2f4-4385-8205-dd9ff41f5f7e% >>> 40googlegroups.com >>> <https://groups.google.com/d/msgid/elasticsearch/095b157e-f2f4-4385-8205-dd9ff41f5f7e%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/elasticsearch/032b5dc8-fd5b-4714-948d-7fe74a63ee65%40googlegroups.com > <https://groups.google.com/d/msgid/elasticsearch/032b5dc8-fd5b-4714-948d-7fe74a63ee65%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoE0M%3DY%2BSYXpJPLBzUKu6GGvpNOj4iOUhPX-TU-1XHS7LA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
