cron job + script not run from cron job , while script run on shell

Question

we have a strange behavior , and I will explain

the following script run successfully on linux machine

su - hdfs -c "sudo /home/tasks.bash"

ps
  PID TTY          TIME CMD
32187 pts/3    00:00:00 ps
39256 pts/3    00:00:00 bash

but when we put the script in cron job as the following

more  /etc/cron.d/TASKS_JOB

*/1 * * * * su - hdfs -c "sudo /home/tasks.bash"

then script not executed ( script should run each 1 min )

what could be the reason for that ?