Unexpected behavior in bash scripting on a ssh function - bash

Question

I've built a Raspberry pi cluster, with Spark and Hadoop installed, and have made a few functions in .bashrc to make communication and interaction a little easier
function otherpis {
grep "pi" /etc/hosts | awk '{print $2}' | grep -v $(hostname)
}
function clustercmd {
for pi in $(otherpis); do ssh $pi "$#"; done
$#
}
Where otherpis simply looks at the host file where i've precompiled all other raspberry pis in the cluster with their static ip addresses. I've also configured ssh with authorized keys so I don't have to enter a password everytime I ssh in.
I can call commands like
$ clustercmd date
Thu 03 Oct 2019 02:00:13 PM CDT
Thu 03 Oct 2019 02:00:11 PM CDT
Thu 03 Oct 2019 02:00:12 PM CDT
......
or
$ clustercmd sudo mkdir -p /opt/hadoop_tmp/hdfs
and it works just fine. But for some reason when I try to pass anything into the command with hadoop or spark, it says it can't find the command except for the pi that I'm invoking the command from.
$ clustercmd hadoop version | grep Hadoop
bash: hadoop: command not found
bash: hadoop: command not found
.....
Hadoop 3.2.1
But when I manually ssh into a pi and call the command, it works just fine.
$ ssh pi2
pi#pi2: $ hadoop version | grep Hadoop
Hadoop 3.2.1
I've exported all proper paths in .bashrc. I've chown of all relevant directories on each pi. No matter what I try, just the spark and hadoop commands aren't registering. Everything else is. I've even have a function that will do a file copy across the entire cluster
function clusterscp {
for pi in $(otherpis); do
cat $1 | ssh $pi "sudo tee $1" > /dev/null 2>&1
done
}
I setup hadoop and spark on the first pi, and then mass transferred all files and configurations with the above function with no problems. Any insight would help
EDIT
Adding all exported paths in .bashrc
export JAVA_HOME=$(readlink –f /usr/bin/java | sed "s:bin/java::")
export HADOOP_HOME=/opt/hadoop
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
export SPARK_HOME=/opt/spark
export PATH=$PATH:$SPARK_HOME/bin
export HADOOP_OPTS="-XX:-PrintWarnings –Djava.net.preferIPv4Stack=true"
export HADOOP_HOME_WARN_SUPPRESS=1
export HADOOP_ROOT_LOGGER="WARN,DRFA"
Note that as I stated earlier, when i'm actually SSH'd into the pi, all exported paths work fine, it is only when I try to run a clustercmd command that hadoop and spark is not found
Solved
I fixed this by moving all exports above this line in the .bashrc
# If not running interactively, don't do anything
case $- in
*i*);;
*) return;;
esac
And I added it to .profile in the home directory. This was originally suggested by mangusta, he just added a word to the file ".bash_profile", when it should be just "profile"

Answer 1

~/.bashrc is executed when you have already logged in and want to open a new terminal window or execute a new shell instance.
If you login into machine (locally or remotely), what actually runs is ~/.bash_profile, not ~/.bashrc.
Try including you HADOOP_HOME and SPARK_HOME folders into PATH inside of .bash_profile on all your pi_N hosts

Answer 2

I think you can directly debug the problem reported by bash ("command not found") by running
echo $PATH
in the ssh shells on each RPi, and comparing the result with the result of
clustercmd 'echo $PATH'
Probably this will show that mangusta's answer is correct.