Re: [xcat-user] single node nodeset taking over 1 minute

[Blayne P. <bl...@pu...>]

See if you can find out what file descriptor 3 is earlier in that strace 
output. That might give you a hint.

---
Blayne Puklich             Minneapolis, MN       PGP Key ID: 0xC52CA6C1
* mailto:blayne at puklich.com
          I'd explain it to you, but your brain would explode.

On 2 May 2024, at 9:58, kei...@lm... wrote:

> I have 2 different xcat boot servers (we'll call them boot1 and boot2) 
> both running xcat 2.16.5 who were upgraded from 2.10.   boot2 was 
> upgraded directly, while boot 1 was upgraded but then xcat was removed 
> completely then installed 2.16.5 fresh.
>
> I am having an issue with nodeset on boot1. For some reason, nodeset 
> on a single node on boot 1 takes over a minute, while nodeset on the 
> same node on boot2 takes less than a second. I can' seem to find the 
> cause of this. I tried stracing the nodeset and I get long timeouts on 
> a resource being temporarily unavailable but I can't seem to figure 
> out the resource.
>
> [root@boot1 ~]# time nodeset -V proc5201_p osimage=rhel7-ia2
> proc5201_p: netboot rhels7.4-x86_64-compute
>
> real    0m50.636s
> user    0m0.064s
> sys     0m0.038s
>
> [root@boot2 ~]# time nodeset -V proc5201_p osimage=rhel7-ia2
> proc5201_p: netboot rhels7.4-x86_64-compute
>
> real    0m0.799s
> user    0m0.060s
> sys     0m0.033s
>
>
> on boot1:
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
> read(3, 0x20de033, 5)                   = -1 EAGAIN (Resource 
> temporarily unavailable)
> select(8, [3], NULL, NULL, {0, 500000}) = 0 (Timeout)
>
>
> Has anyone seen this before and can help explain why this is 
> happening?
>
> _______________________
> - Keith Hannum
> - kei...@lm...

> _______________________________________________
> xCAT-user mailing list
> xCA...@li...
> https://lists.sourceforge.net/lists/listinfo/xcat-user