It might be nice to make an updated plugin cache format that can be cat'd together instead of deserializing and serializing again.
On 11 May 2016 at 06:08, Ralph Goers <ralph.go...@dslextreme.com> wrote: > Oops. I think I misread your comment. You want to use the Transformer as > part of the maven build, not at runtime. > > Ralph > > > On May 11, 2016, at 3:48 AM, Julian Keppel <juliankeppel1...@gmail.com> > wrote: > > > > Thanks. > > > > So this seems to be a general problem with log4j and the provided > plugins? > > But what is the right way to use log4j plugins with a maven project which > > should be shipped as a complete package (JAR)? I mean, everytime you need > > to use a log4j plugin, you also have at least the log4j core dependency > in > > you classpath. Do I really need to use a Transformer or something like > that? > > > > 2016-05-05 2:00 GMT+02:00 Ralph Goers <ralph.go...@dslextreme.com>: > > > >> You are most likely having this problem because when you create your > uber > >> jar you can only include one of the Log4j2Plugins.dat files. Both the > >> log4j2-core jar and the log4j2-flume jar are going to have one. This > has > >> been discussed in https://issues.apache.org/jira/browse/LOG4J2-1059 < > >> https://issues.apache.org/jira/browse/LOG4J2-1059> (which probably can > be > >> closed), https://issues.apache.org/jira/browse/LOG4J2-369 < > >> https://issues.apache.org/jira/browse/LOG4J2-369>, and > >> https://issues.apache.org/jira/browse/LOG4J2-673 < > >> https://issues.apache.org/jira/browse/LOG4J2-673>. This last one has a > >> solution in the middle of the discussion by way of a Transformer that > can > >> be used in the maven shade plugin. However, you are using the assembly > >> plugin, so I am not really sure how you can do it that way. > >> > >> Ralph > >> > >> > >> > >> > >>>> On May 4, 2016, at 12:43 PM, Julian Keppel < > juliankeppel1...@gmail.com> > >>> wrote: > >>> > >>> Hi everyone, > >>> > >>> I tested the flume appender for log4j2. My configuration XML looks like > >>> this: > >>> > >>> <Configuration status="ERROR" name="some_name"> > >>> > >>> ... > >>> > >>> <Appenders> > >>> > >>> ... > >>> > >>> <Flume name="FLUME" compress="true"> > >>> <Agent host="${FLUME_HOST}" port="${FLUME_PORT}"/> > >>> <PatternLayout pattern="${LOG_PATTERN}"/> > >>> <ThresholdFilter level="INFO" onMatch="ACCEPT" > onMismatch="DENY"/> > >>> </Flume> > >>> </Appenders> > >>> > >>> <Loggers> > >>> <Root level="DEBUG"> > >>> <AppenderRef ref="FLUME"/> > >>> ... > >>> </Root> > >>> </Loggers> > >>> </Configuration> > >>> > >>> And I build my application with maven assembly plugin to get an uber > jar > >>> which contains all dependencies (I want to ship a single jar file to > all > >>> the destination runtime environments). > >>> > >>> When I start the application I get the following error: > >>> ERROR Error processing element Flume ([Appenders: null]): > CLASS_NOT_FOUND > >>> > >>> So it looks like there is some dependency missing. But in the official > >> doc > >>> I read that for remote mode of the flume appender I only need the > >> following > >>> dependency (including the necessary log4j dependencies): > >>> > >>> <dependencies> > >>> > >>> ... > >>> > >>> <dependency> > >>> <groupId>org.apache.logging.log4j</groupId> > >>> <artifactId>log4j-core</artifactId> > >>> <version>2.5</version> > >>> </dependency> > >>> <dependency> > >>> <groupId>org.apache.logging.log4j</groupId> > >>> <artifactId>log4j-api</artifactId> > >>> <version>2.5</version> > >>> </dependency> > >>> <dependency> > >>> <groupId>org.apache.logging.log4j</groupId> > >>> <artifactId>*log4j-flume-ng*</artifactId> > >>> <version>2.5</version> > >>> </dependency> > >>> </dependencies> > >>> > >>> Another hint: When I start the application from eclipse, it seems to > work > >>> totally fine (at least I don't get the error from above). > >>> > >>> So what I am doing wrong here? Has anyone some advice for me? Thanks in > >>> advance. > >>> > >>> Julian > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org > For additional commands, e-mail: log4j-user-h...@logging.apache.org > > -- Matt Sicker <boa...@gmail.com>
