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Chukwa, mail # user - chukwa agent jar not on classpath when agent starts


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Noel Duffy 2012-01-19, 23:31
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Re: chukwa agent jar not on classpath when agent starts
Eric Yang 2012-01-20, 01:04
That was what happened.  We found it easier to maintain by having a
consolidated jar file which we are currently using it as
chukwa-core-${CHUKWA_VERSION}.jar.  We probably should stop building
chukwa agent jar file in the future releases.

regards,
Eric

On Thu, Jan 19, 2012 at 3:31 PM, Noel Duffy <[EMAIL PROTECTED]> wrote:
> Using chukwa 0.4.0, I built an RPM with "ant rpm", then installed the rpm. I noticed that chukwa-agent-0.4.0.jar is not on the classpath when I start a new agent. This means that there are no adapters available by default. Is this intentional?
>
> Looking through the shell scripts used to start the agent, I found, in $CHUKWA_HOME/bin/chukwa-config.sh, these lines:
>
> export CHUKWA_CORE=${CHUKWA_HOME}/chukwa-core-${CHUKWA_VERSION}.jar
> export CHUKWA_AGENT=${CHUKWA_HOME}/chukwa-agent-${CHUKWA_VERSION}.jar
> export HICC_JAR=${CHUKWA_HOME}/hicc.war
>
> The environment variable CHUKWA_AGENT is never referenced again. The variable CHUKWA_CORE is used in $CHUKWA_HOME/bin/chukwa when setting the classpath, as follows:
>
>  if [ "$BACKGROUND" = "false" ]; then
>    ${JAVA_HOME}/bin/java ${JAVA_OPT} -Djava.library.path=${JAVA_LIBRARY_PATH} -DCHUKWA_HOME=${CHUKWA_\
> HOME} -DCHUKWA_CONF_DIR=${CHUKWA_CONF_DIR} -DCHUKWA_LOG_DIR=${CHUKWA_LOG_DIR} -DCHUKWA_DATA_DIR=${CHUK\
> WA_DATA_DIR} -DAPP=${APP} -Dlog4j.configuration=chukwa-log4j.properties -classpath ${CHUKWA_CONF_DIR}:\
> ${CLASSPATH}:${CHUKWA_CORE}:${HADOOP_JAR}:${COMMON}:${tools} ${CLASS} $OPTS $@
>  else
>    exec ${JAVA_HOME}/bin/java ${JAVA_OPT} -Djava.library.path=${JAVA_LIBRARY_PATH} -DCHUKWA_HOME=${CH\
> UKWA_HOME} -DCHUKWA_CONF_DIR=${CHUKWA_CONF_DIR} -DCHUKWA_LOG_DIR=${CHUKWA_LOG_DIR} -DCHUKWA_DATA_DIR=$\
> {CHUKWA_DATA_DIR} -DAPP=${APP} -Dlog4j.configuration=chukwa-log4j.properties -classpath ${CHUKWA_CONF_\
> DIR}:${CLASSPATH}:${CHUKWA_CORE}:${HADOOP_JAR}:${COMMON}:${tools} ${CLASS} $OPTS $@ &
>  fi
> fi
>
> This leads me to suspect that CHUKWA_AGENT was meant to be on the classpath. Or perhaps it was at one point, and was removed.
>