Support for AccountingStoreFlags=job_script

[guilbaults]

Slurm supports storing submitted job scripts in its database since 21.08 if it's configured with the AccountingStoreFlags=job_script option. It also de-duplicate the content since the same scripts can be reused multiple times by a user.

This feature should replace the external python script currently being used to upload to Django and align the limit with the max_script_size.

https://groups.google.com/g/slurm-users/c/lb_D4gHpB1w

[cmd-ntrf]

When configured with AccountingStoreFlags=job_script, the following table is added:

• <cluster_name>_job_script_table.

With the following columns:

• deleted
• hash_inx
• last_used
• script_hash
• batch_script

Which translates in Django to something like :

class JobScriptTable(models.Model):
    deleted = models.IntegerField()
    hash_inx = models.BigAutoField(primary_key=True)
    last_used = models.DateTimeField()
    script_hash = models.TextField()
    batch_script = models.TextField(null=True)

    class Meta:
        managed = False
        db_table = settings.CLUSTER_NAME + '_job_script_table'
        unique_together = (('hash_inx', 'script_hash'),)

There is also a column named script_hash_inx added to <cluster_name>_job_table to make the correspondence between the job and the job script.