Currently the jobclient accesses the mapred.system.dir to add job details. Hence the mapred.system.dir has the permissions of rwx-wx-wx. This could be a security loophole where the job files might get overwritten/tampered after the job submission.
Description
Currently the jobclient accesses the mapred.system.dir to add job details. Hence the mapred.system.dir has the permissions of rwx-wx-wx. This could be a security loophole where the job files might get overwritten/tampered after the job submission.