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启动Sqoop作业时会出现下面的警告信息：
Warning: /opt/modules/sqoop-1.4.7.bin__hadoop-2.6.0/../hcatalog does not exist! HCatalog jobs will fail.
Please set $HCAT_HOME to the root of your HCatalog installation.
Warning: /opt/modules/sqoop-1.4.7.bin__hadoop-2.6.0/../accumulo does not exist! Accumulo imports will fail.
Please set $ACCUMULO_HOME to the root of your Accumulo installation.
Warning: /opt/modules/sqoop-1.4.7.bin__hadoop-2.6.0/../zookeeper does not exist! Accumulo imports will fail.
Please set $ZOOKEEPER_HOME to the root of your Zookeeper installation.
解决方法：
进入$SQOOP_HOME/bin下，修改configure-sqoop文件，将下面的内容注释掉：
##user define note#####
## Moved to be a runtime check in sqoop.
if false;then
if [ ! -d "${HCAT_HOME}" ]; then
echo "Warning: $HCAT_HOME does not exist! HCatalog jobs will fail."
echo 'Please set $HCAT_HOME to the root of your HCatalog installation.'
fi
if [ ! -d "${ACCUMULO_HOME}" ]; then
echo "Warning: $ACCUMULO_HOME does not exist! Accumulo imports will fail."
echo 'Please set $ACCUMULO_HOME to the root of your Accumulo installation.'
fi
if [ ! -d "${ZOOKEEPER_HOME}" ]; then
echo "Warning: $ZOOKEEPER_HOME does not exist! Accumulo imports will fail."
echo 'Please set $ZOOKEEPER_HOME to the root of your Zookeeper installation.'
fi
##
fi
再次启动作业的时候，就不会有警告的信息了。