[slurm-users] srun: Error generating job credential

[Eddy Swan]

Hi Marcus,

I did not restarted munge previously.
So I restarted munge and follow by slurmd, but the issue still persists.

I ran the following test from piglet-17 to verify the munge installation,
it looks good.

$ munge -n | unmunge
STATUS:           Success (0)
ENCODE_HOST:      piglet-17.sg.corp.prestolabs.io (127.0.1.1)
ENCODE_TIME:      2019-10-07 16:14:55 +0800 (1570436095)
DECODE_TIME:      2019-10-07 16:14:55 +0800 (1570436095)
TTL:              300
CIPHER:           aes128 (4)
MAC:              sha1 (3)
ZIP:              none (0)
UID:              turing (1000)
GID:              turing (1000)
LENGTH:           0

$ munge -n | ssh turing at 10.15.2.18 unmunge
turing at 10.15.2.18's password:
STATUS:           Success (0)
ENCODE_HOST:      piglet-18.sg.corp.prestolabs.io (127.0.1.1)
ENCODE_TIME:      2019-10-07 16:15:19 +0800 (1570436119)
DECODE_TIME:      2019-10-07 16:15:21 +0800 (1570436121)
TTL:              300
CIPHER:           aes128 (4)
MAC:              sha1 (3)
ZIP:              none (0)
UID:              turing (1000)
GID:              turing (1000)
LENGTH:           0

Best regards,
Eddy Swan

On Mon, Oct 7, 2019 at 4:09 PM Marcus Wagner <wagner at itc.rwth-aachen.de>
wrote:

> Hmm, that is strange. I asked because of the errors below:
>
> On 10/7/19 9:36 AM, Eddy Swan wrote:
>
> [2019-10-07T13:38:49.260] error: slurm_cred_create: getpwuid failed for
> uid=1000
> [2019-10-07T13:38:49.260] error: slurm_cred_create error
>
>
> and "id" uses the same call (ltrace excerpt):
>
> getpwuid(0x9e7e, 0x7f0850f18a00, 9,
> 9)
> = 0x7f0850f19260
>
> Did you restart munge and afterwards restart the slurm daemons?
> Though, the error with wrong munge keys are more like "zero bytes
> transmitted".
>
> I'm a little bit confused.
>
> --
> Marcus Wagner, Dipl.-Inf.
>
> IT Center
> Abteilung: Systeme und Betrieb
> RWTH Aachen University
> Seffenter Weg 23
> 52074 Aachen
> Tel: +49 241 80-24383
> Fax: +49 241 80-624383wagner at itc.rwth-aachen.dewww.itc.rwth-aachen.de
>
>
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