Thanks for the suggestion. I am using openssl because munge requires
another software component (the munged) running on compute nodes and
MUNGE is sensitive to time synchronization between the nodes.  If this
problem continues to appear, I will consider munge.

在 2013-07-05五的 21:23 -0700,Aaron Knister写道:
> Hi Hongjia,
> 
> While I don't have an answer to your ssl problem I can offer a suggestion. 
> Have you tried using munge? It's what I've always used with SLURM and I get 
> the feeling it's the "de facto" standard for SLURM authentication. 
> 
> -Aaron
> 
> Sent from my iPhone
> 
> On Jul 5, 2013, at 11:08 AM, Hongjia Cao <[email protected]> wrote:
> 
> > 
> > Occasionally I run into task launch failures with error message: Invalid
> > job credential. slurmd log shows that job credential verification failed
> > with openssl error string "block type is not 01". A restart of the
> > slurmctld will remove this problem but some time later it will happen
> > again. 
> > 
> > We are using RSA for job credential keys. I googled and it seems this
> > issue may be caused by openssl sign/verify padding scheme. But I do not
> > know how to fix it. Does anyone else has this problem?

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