namenodelists="nnip1,nnip2"

nn1=$(echo $namenodelists | cut -d "," -f )

nn2=$(echo $namenodelists | cut -d "," -f )

nn1state=$(curl "http://$nn1:50070/jmx?qry=Hadoop:service=NameNode,name=NameNodeStatus"|grep -c active)

nn2state=$(curl "http://$nn2:50070/jmx?qry=Hadoop:service=NameNode,name=NameNodeStatus"|grep -c active)

source /etc/profile

source /root/.profile

curr_nn=$(grep -Po -m1 "http://(.*):50070" /usr/share/hue/desktop/conf/hue.ini |cut -d ':' -f |cut -d "/" -f )

echo $curr_nn

if [ $nn1state -eq  ]; then

activenn=$nn1

   if [ "X$curr_nn" != "X$activenn" ]; then

       echo "nn change, now active is $activenn"

       sed -i "s|fs_defaultfs=.*|webhdfs_url=http://$activenn:50070/webhdfs/v1|" /usr/share/hue/desktop/conf/hue.ini

       sed -i "s|webhdfs_url=.*|webhdfs_url=http://$activenn:50070/webhdfs/v1|" /usr/share/hue/desktop/conf/hue.ini

       ps -ef|grep hue |grep -v grep |awk '{print $2}' |xargs kill - >/dev/null

       /usr/bin/nohup /usr/share/hue/build/env/bin/hue runserver 0.0.0.0: > /usr/share/hue/hue.log >& &

   fi

fi

if [ $nn2state -eq  ]; then

activenn=$nn2

   if [ "X$curr_nn" != "X$activenn" ]; then

       echo "nn change, now active is $activenn"

       sed -i "s|fs_defaultfs=.*|webhdfs_url=http://$activenn:50070/webhdfs/v1|" /usr/share/hue/desktop/conf/hue.ini

       sed -i "s|webhdfs_url=.*|webhdfs_url=http://$activenn:50070/webhdfs/v1|" /usr/share/hue/desktop/conf/hue.ini

       ps -ef|grep hue |grep -v grep |awk '{print $2}' |xargs kill - >/dev/null

       /usr/bin/nohup /usr/share/hue/build/env/bin/hue runserver 0.0.0.0: > /usr/share/hue/hue.log >& &

   fi

fi

#start it if not start

live=`ps -ef|grep runserver|grep -v -c grep`

if [ $live -eq  ];  then

/usr/bin/nohup /usr/share/hue/build/env/bin/python2. /usr/share/hue/build/env/bin/hue runserver 0.0.0.0: >& &

fi