You appear to be using log4j 1.x. log4j 1.x does not come with a Flume
Appender. The Flume project does provide one and if you are having problems
with it you would need to raise it it them. log4j 2 does have a Flume Appender
however.
Ralph
> On Oct 23, 2013, at 3:37 AM, Praveen Sripati <praveensrip...@gmail.com> wrote:
>
> Hi,
>
> I am trying to get the events from Log4J into HDFS through Flume using the
> Log4J appender. Created two appenders FILE and flume. It works for the FILE
> appender, but with the flume appender the program just hangs in Eclipse. I
> don't see any exception, except the below in the log.out.
>
> Batch size string = null
> Using Netty bootstrap options: {tcpNoDelay=true, connectTimeoutMillis=20000}
> Connecting to localhost/127.0.0.1:41414
> [id: 0x52a00770] OPEN
>
> Flume works properly, I am able to send messages to the avro source using
> the avro client and see the messages in HDFS. But, it's not getting
> integrated with Log4J. How to get around this problem?
>
> -----
>
> Here is the Java program
>
> import java.io.IOException;
> import java.sql.SQLException;
> import org.apache.log4j.Logger;
>
> public class log4jExample {
>
> static Logger log = Logger.getRootLogger();
> public static void main(String[] args) throws IOException, SQLException
> {
> log.debug("Hello this is an debug message");
> }
> }
>
> -----
>
> Here is the log4j.properties
>
> # Define the root logger with appender file
> log = /home/vm4learning/WorkSpace/BigData/Log4J-Example/log
> log4j.rootLogger = DEBUG, FILE, flume
>
> # Define the file appender
> log4j.appender.FILE=org.apache.log4j.FileAppender
> log4j.appender.FILE.File=${log}/log.out
> log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
> log4j.appender.FILE.layout.conversionPattern=%m%n
>
> # Define the flume appender
> log4j.appender.flume = org.apache.flume.clients.log4jappender.Log4jAppender
> log4j.appender.flume.Hostname = localhost
> log4j.appender.flume.Port = 41414
> log4j.appender.flume.UnsafeMode = false
> log4j.appender.flume.layout=org.apache.log4j.PatternLayout
> log4j.appender.flume.layout.ConversionPattern=%m%n
>
> -----
>
> Here are the dependencies
>
> <classpathentry kind="lib" path="flume-ng-log4jappender-1.4.0.jar"/>
> <classpathentry kind="lib" path="log4j-1.2.17.jar"/>
> <classpathentry kind="lib" path="flume-ng-sdk-1.4.0.jar"/>
> <classpathentry kind="lib" path="avro-1.7.3.jar"/>
> <classpathentry kind="lib" path="netty-3.4.0.Final.jar"/>
> <classpathentry kind="lib" path="avro-ipc-1.7.3.jar"/>
> <classpathentry kind="lib" path="slf4j-api-1.6.1.jar"/>
> <classpathentry kind="lib" path="slf4j-log4j12-1.6.1.jar"/>
>
> Thanks,
> Praveen
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