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https://issues.apache.org/jira/browse/HBASE-5286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13198059#comment-13198059
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Jonathan Hsieh commented on HBASE-5286:
---------------------------------------
What is the replacement for HADOOP_HOME (if any) in hadoop 0.23? Are there now
multiple? (HDFS_HOME, MAPRED_HOME or something like that?) Could we define one
in terms of the other?
I think the different dir suggestion is a generalization so we can point to the
tarball included jars or the jars from a specific hadoop/zk install without a
sed special case (its just a different argument if the HADOOP_HOME and
ZOOKEEPER_HOME equivs are not defined/found).
> bin/hbase's logic of adding Hadoop jar files to the classpath is fragile when
> presented with split packaged Hadoop 0.23 installation
> ------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-5286
> URL: https://issues.apache.org/jira/browse/HBASE-5286
> Project: HBase
> Issue Type: Bug
> Components: scripts
> Affects Versions: 0.92.0
> Reporter: Roman Shaposhnik
> Assignee: Roman Shaposhnik
>
> Here's the bit from bin/hbase that might need TLC now that Hadoop can be
> spotted in the wild in split-package configuration:
> {noformat}
> #If avail, add Hadoop to the CLASSPATH and to the JAVA_LIBRARY_PATH
> if [ ! -z $HADOOP_HOME ]; then
> HADOOPCPPATH=""
> if [ -z $HADOOP_CONF_DIR ]; then
> HADOOPCPPATH=$(append_path "${HADOOPCPPATH}" "${HADOOP_HOME}/conf")
> else
> HADOOPCPPATH=$(append_path "${HADOOPCPPATH}" "${HADOOP_CONF_DIR}")
> fi
> if [ "`echo ${HADOOP_HOME}/hadoop-core*.jar`" !=
> "${HADOOP_HOME}/hadoop-core*.jar" ] ; then
> HADOOPCPPATH=$(append_path "${HADOOPCPPATH}" `ls
> ${HADOOP_HOME}/hadoop-core*.jar | head -1`)
> else
> HADOOPCPPATH=$(append_path "${HADOOPCPPATH}" `ls
> ${HADOOP_HOME}/hadoop-common*.jar | head -1`)
> HADOOPCPPATH=$(append_path "${HADOOPCPPATH}" `ls
> ${HADOOP_HOME}/hadoop-hdfs*.jar | head -1`)
> HADOOPCPPATH=$(append_path "${HADOOPCPPATH}" `ls
> ${HADOOP_HOME}/hadoop-mapred*.jar | head -1`)
> fi
> {noformat}
> There's a couple of issues with the above code:
> 0. HADOOP_HOME is now deprecated in Hadoop 0.23
> 1. the list of jar files added to the class-path should be revised
> 2. we need to figure out a more robust way to get the jar files that are
> needed to the classpath (things like hadoop-mapred*.jar tend to match
> src/test jars as well)
> Better yet, it would be useful to look into whether we can transition HBase's
> bin/hbase onto using bin/hadoop as a launcher script instead of direct JAVA
> invocations (Pig, Hive, Sqoop and Mahout already do that)
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