Running mvn dependency:tree in samples/flume-remote yields
[INFO] --- maven-dependency-plugin:2.1:tree (default-cli) @ flume-remote ---
[INFO] org.apache.logging.log4j.samples:flume-remote:war:2.0-beta4-SNAPSHOT
[INFO] +-
org.apache.logging.log4j.samples:flume-common:jar:2.0-beta4-SNAPSHOT:compile
[INFO] +- org.apache.logging.log4j:log4j-api:jar:2.0-beta4-SNAPSHOT:compile
[INFO] +- org.apache.logging.log4j:log4j-core:jar:2.0-beta4-SNAPSHOT:compile
[INFO] +-
org.apache.logging.log4j.adapters:log4j-web:jar:2.0-beta4-SNAPSHOT:compile
[INFO] | +- org.slf4j:slf4j-api:jar:1.7.2:compile
[INFO] | \- org.slf4j:slf4j-ext:jar:1.7.2:compile
[INFO] | \- ch.qos.cal10n:cal10n-api:jar:0.7.4:compile
[INFO] +-
org.apache.logging.log4j.adapters:log4j-flume-ng:jar:2.0-beta4-SNAPSHOT:compile
[INFO] | \- org.apache.flume:flume-ng-sdk:jar:1.2.0:compile
[INFO] | +- org.apache.avro:avro:jar:1.6.3:compile
[INFO] | | +- org.codehaus.jackson:jackson-core-asl:jar:1.9.2:compile
(version managed from 1.8.8)
[INFO] | | +- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.2:compile
(version managed from 1.8.8)
[INFO] | | +- com.thoughtworks.paranamer:paranamer:jar:2.3:compile
[INFO] | | \- org.xerial.snappy:snappy-java:jar:1.0.4.1:compile
[INFO] | +- org.apache.avro:avro-ipc:jar:1.6.3:compile
[INFO] | | +- org.mortbay.jetty:jetty:jar:6.1.26:compile
[INFO] | | +- org.mortbay.jetty:jetty-util:jar:6.1.26:compile
[INFO] | | +- org.jboss.netty:netty:jar:3.2.7.Final:compile
[INFO] | | \- org.apache.velocity:velocity:jar:1.7:compile
[INFO] | | \- commons-collections:commons-collections:jar:3.2.1:compile
[INFO] | +- commons-io:commons-io:jar:2.1:compile
[INFO] | \- org.mortbay.jetty:servlet-api:jar:2.5-20110124:compile
[INFO] +- org.springframework:spring-beans:jar:3.1.2.RELEASE:compile
[INFO] +- org.springframework:spring-core:jar:3.1.2.RELEASE:compile
[INFO] | +- org.springframework:spring-asm:jar:3.1.2.RELEASE:compile
[INFO] | \- commons-logging:commons-logging:jar:1.1.1:compile
[INFO] +- org.springframework:spring-webmvc:jar:3.1.2.RELEASE:compile
[INFO] | +- org.springframework:spring-context:jar:3.1.2.RELEASE:compile
[INFO] | +-
org.springframework:spring-context-support:jar:3.1.2.RELEASE:compile
[INFO] | +- org.springframework:spring-expression:jar:3.1.2.RELEASE:compile
[INFO] | \- org.springframework:spring-web:jar:3.1.2.RELEASE:compile
[INFO] | \- aopalliance:aopalliance:jar:1.0:compile
[INFO] +- org.springframework.ws:spring-ws-core:jar:2.1.0.RELEASE:compile
[INFO] | +- org.springframework.ws:spring-xml:jar:2.1.0.RELEASE:compile
[INFO] | +- org.springframework:spring-aop:jar:3.1.1.RELEASE:compile
[INFO] | +- org.springframework:spring-oxm:jar:3.1.1.RELEASE:compile
[INFO] | | \- commons-lang:commons-lang:jar:2.5:compile
[INFO] | \- wsdl4j:wsdl4j:jar:1.6.1:compile
[INFO] +- javax.servlet:servlet-api:jar:2.4:provided
[INFO] \- junit:junit:jar:4.3.1:test
From this you can see that avro requires jackson and several other jars. In
addition, you have included avro 1.4.1 while the above shows avro 1.6.3. In
looking at the source for Avro 1.4.1 it does not define that particular class
so you will need a more current version.
Ralph
On Dec 26, 2012, at 8:56 PM, Pradeep Kanchgar wrote:
>
> Hi ,
>
> I'm using flume Appender but getting the following error.
>
> 2012-12-26 19:08:41,566 ERROR Unable to invoke method createAppender in class
> org.apache.logging.log4j.flume.appender.FlumeAppender for element Flume
> java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:711)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:477)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:469)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.doConfigure(BaseConfiguration.java:156)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.start(BaseConfiguration.java:114)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:251)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:267)
> at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:134)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:75)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:30)
> at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:165)
> at log4jExample.<clinit>(log4jExample.java:8)
> Caused by: java.lang.NoClassDefFoundError: org/apache/avro/AvroRemoteException
> at
> org.apache.logging.log4j.flume.appender.FlumeAppender.createAppender(FlumeAppender.java:173)
> ... 16 more
> Caused by: java.lang.ClassNotFoundException:
> org.apache.avro.AvroRemoteException
> at java.net.URLClassLoader$1.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> ... 17 more
>
> 2012-12-26 19:08:41,567 ERROR Null object returned for Flume in appenders
> 2012-12-26 19:08:41,577 ERROR Unable to locate appender eventLogger for logger
>
> my config file : log4j2.xml is
>
> <?xml version="1.0" encoding="UTF-8"?>
> <configuration status="warn" name="log4jExample" packages="">
> <appenders>
> <Flume name="eventLogger" suppressExceptions="false" compress="true">
> <Agent host="172.20.104.226" port="41414"/>
> <PatternLayout pattern="%m%n"/>
> </Flume>
> </appenders>
> <loggers>
> <root level="error">
> <appender-ref ref="eventLogger"/>
> </root>
> </loggers>
> </configuration>
>
> my java file is
>
>
> public class log4jExample{
> /* Get actual class name to be printed on */
> static Logger log = LogManager.getLogger(
> log4jExample.class.getName());
>
> public static void main(String[] args)
> throws Exception{
>
> for (int i = 0; i < 100 ; i++) {
> log.trace("Entering the Application");
> log.debug("Current data unavailalbe, using cached values");
> log.info("Hello this is an info message");
> log.error("Dabase unavaliable, connetion lost");
> log.warn("Attention!! Application running in debugmode");
> log.trace("Existing the Application");
> }
>
> }
> }
>
> I've added all the log4j2 jar files in classpath variable in ~/.bashrc file.
> but still getting same error and I've already wasted an entire day in
> resolving this, but no solution yet.
> And apache avro jar(avro-1.4.1.jar) is also in classpath.
>
> Still the problem persists.
>
> I've these jar files in my classpath : log4j12-api-2.0-beta3.jar,
> log4j-core-2.0-beta3.jar, log4j-flume-ng-2.0-beta3.jar,
> log4j-jcl-2.0-beta3.jar, log4j-slf4j-impl-2.0-beta3.jar, avro-1.4.1.jar.
>
>
> Regards,
> Pradeep Kanchgar
>
>
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