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https://issues.apache.org/jira/browse/HADOOP-7596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096546#comment-13096546
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Bruno Mahé commented on HADOOP-7596:
------------------------------------
{quote}
+ if start-stop-daemon --start --quiet --oknodo --pidfile
${HADOOP_PID_DIR}/hadoop-${IDENT_USER}-datanode.pid -c ${DN_USER} -x
${HADOOP_PREFIX}/sbin/hadoop-daemon.sh -- --config ${HADOOP_CONF_DIR} start
datanode; then
{quote}
Out of curiosity, what is the rationale of having a ${IDENT_USER} and
${DN_USER} ?
{quote}
+ daemon --user hdfs ${HADOOP_PREFIX}/sbin/hadoop-daemon.sh --config
"${HADOOP_CONF_DIR}" start datanode
{quote}
hdfs user is still hardcoded in several locations
{quote}
${HADOOP_PREFIX}/sbin/hadoop-daemon.sh
{quote}
is used in many locations. It may be useful to use a variable instead.
{quote}
-chown $HADOOP_IDENT_STRING $HADOOP_LOG_DIR
+touch $HADOOP_LOG_DIR/.hadoop_test > /dev/null 2>&1
+TEST_LOG_DIR=$?
+if [ "${TEST_LOG_DIR}" = "0" ]; then
+ rm -f $HADOOP_LOG_DIR/.hadoop_test
+else
+ chown $HADOOP_IDENT_STRING $HADOOP_LOG_DIR
+fi
{quote}
Isn't it a dangerous behaviour if a user customize this directory? (and by
mistake or knowingly set it for instance to /var/log)
And also in some places I see the LSB log* functions being used and in some
other places I see "echo -n". Although this is out of scope of this ticket.
> Enable jsvc to work with Hadoop RPM package
> -------------------------------------------
>
> Key: HADOOP-7596
> URL: https://issues.apache.org/jira/browse/HADOOP-7596
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Affects Versions: 0.20.204.0
> Environment: Java 6, RedHat EL 5.6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Fix For: 0.20.205.0
>
> Attachments: HADOOP-7596-2.patch, HADOOP-7596-3.patch,
> HADOOP-7596.patch
>
>
> For secure Hadoop 0.20.2xx cluster, datanode can only run with 32 bit jvm
> because Hadoop only packages 32 bit jsvc. The build process should download
> proper jsvc versions base on the build architecture. In addition, the shell
> script should be enhanced to locate hadoop jar files in the proper location.
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