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https://issues.apache.org/jira/browse/LOG4J2-1650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17814640#comment-17814640
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Piotr Karwasz commented on LOG4J2-1650:
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In the latest snapshot we have the following uncompressed sizes:
{noformat}
3173211 org/apache/logging/log4j/core
713177 org/apache/logging/log4j/core/appender
507957 org/apache/logging/log4j/core/config
335249 org/apache/logging/log4j/core/tools
280622 org/apache/logging/log4j/core/tools/picocli
271181 org/apache/logging/log4j/core/pattern
266055 org/apache/logging/log4j/core/appender/rolling
240882 org/apache/logging/log4j/core/filter
202387 org/apache/logging/log4j/core/impl
190778 org/apache/logging/log4j/core/util
169243 org/apache/logging/log4j/core/layout
138269 org/apache/logging/log4j/core/net
136128 org/apache/logging/log4j/core/time
105241 org/apache/logging/log4j/core/appender/rolling/action
103026 org/apache/logging/log4j/core/config/builder{noformat}
So removing {{o.a.l.l.c.tools}} (unreachable from the rest of the code) and
{{o.a.l.l.c.config.builder}} (useless to most users) should send us under 1300
KiB.
> log4j2-core diet
> ----------------
>
> Key: LOG4J2-1650
> URL: https://issues.apache.org/jira/browse/LOG4J2-1650
> Project: Log4j 2
> Issue Type: Improvement
> Reporter: Romain Manni-Bucau
> Priority: Major
>
> Hello,
> log4j2 is ~1.3M. It is a lot to get started with logging and several parts
> are not mandatory to start and rarely needed all together like jackson, db,
> yaml (this one is not that big) etc...Also saw Generate class which is quite
> big but not sure it is needed at runtime and the annotation processor logic
> is never needed at runtime.
> Anyway, by comparison logback and log4j1 are ~500k so hopefully we could only
> pay the same price to get started with log4j2.
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