Prevent environment propagation when submitting prepare job

fluidnumerics-joe · claude · fluidnumerics-joe · commit d3e7582fe88e · 2026-02-04T19:30:29.000-05:00
Use sbatch --export=NONE to avoid inheriting SLURM_* environment
variables from the bot's parent job. This fixes the SLURM_MEM_PER_CPU
vs SLURM_MEM_PER_NODE conflict when the bot runs as a Slurm job.

Co-Authored-By: Claude Opus 4.5 &lt;noreply@anthropic.com&gt;
diff --git a/src/xfer/slackbot/slurm_tools.py b/src/xfer/slackbot/slurm_tools.py
@@ -357,8 +357,9 @@ def submit_transfer(
     )
 
     # Submit the prepare job
+    # Use --export=NONE to prevent inheriting SLURM_* env vars from the bot's job
     try:
-        result = run_cmd(["sbatch", str(prepare_script)], check=True)
+        result = run_cmd(["sbatch", "--export=NONE", str(prepare_script)], check=True)
 
         # Parse job ID from output
         job_id = None

Original file line number	Diff line number	Diff line change
`@@ -357,8 +357,9 @@ def submit_transfer(`
`357`	`357`	`)`
`358`	`358`
`359`	`359`	`# Submit the prepare job`
	`360`	`+ # Use --export=NONE to prevent inheriting SLURM_* env vars from the bot's job`
`360`	`361`	`try:`
`361`		`- result = run_cmd(["sbatch", str(prepare_script)], check=True)`
	`362`	`+ result = run_cmd(["sbatch", "--export=NONE", str(prepare_script)], check=True)`
`362`	`363`
`363`	`364`	`# Parse job ID from output`
`364`	`365`	`job_id = None`