Details
-
Bug
-
Status: Resolved
-
Major
-
Resolution: Not A Problem
-
1.4.0
-
None
-
centos 6
Description
Hello,
I'm using log4j flume appender in a tomcat webapp to send log lines to a flume avro source. Everything seems to work fine for "normal" log lines however calls like:
logger.error("Exception: ", e);
seem to ignore the stacktrace (throwable) so the only thing I get on the other side is the "Exception: " string. I tried the same code with console and file log4j appenders and the stacktraces are printed properly.
I would appreciate any ideas/suggestion about why I can't get them with the flume log4j appender?
I've noticed that both console and file appenders are extending org.apache.log4j.WriterAppender->org.apache.log4j.AppenderSkeleton while flume appender extends org.apache.log4j.AppenderSkeleton only.
This is my log4j.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <!-- Appenders --> <appender name="console" class="org.apache.log4j.ConsoleAppender"> <param name="Target" value="System.out" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%t %-5p %c{2} - %m%n" /> </layout> </appender> <appender name="flume" class="org.apache.flume.clients.log4jappender.Log4jAppender"> <param name="Hostname" value="localhost"/> <param name="Port" value="4545"/> <param name="UnsafeMode" value="true"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%t %-5p %c{2} - %m%n"/> </layout> </appender> <appender name="file" class="org.apache.log4j.FileAppender"> <param name="File" value="/tmp/util.log" /> <param name="Append" value="true" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%t %-5p %c{2} - %m%n"/> </layout> </appender> <!-- Root Logger --> <root> <priority value ="info" /> <appender-ref ref="console" /> <appender-ref ref="flume" /> <appender-ref ref="file" /> </root> </log4j:configuration>
Thank you!
Nick